CdRomAddDevice CdRomCreateDeviceObject CdRomCreateWellKnownName CdRomDeleteWellKnownName CdRomErrorHandler CdromFakePartitionInfo CdRomGetDeviceParameter CdRomGetDeviceType CdRomInitDevice CdRomIsPlayActive CdRomMmcErrorHandler CdRomPickDvdRegion CdRomReadWriteVerification CdRomRemoveDevice CdRomRerunRequest CdRomRetryRequest CdRomSetDeviceParameter CdRomShutdownFlush CdRomShutdownFlushCompletion CdRomStartDevice CdRomStartIo CdRomStopDevice CdRomSwitchModeCompletion CdRomTickHandler CdRomUnload CdRomUpdateCapacity CdRomUpdateGeometryCompletion DriverEntry HitachiProcessError HitachiProcessErrorGD2000 IS_READ_WRITE_REQUEST IS_WRITE_REQUEST ScanForSpecial ScanForSpecialHandler ToshibaProcessError ToshibaProcessErrorCompletion

VOID CdromFakePartitionInfo ( IN PCOMMON_DEVICE_EXTENSION  CommonExtension, IN PIRP  Irp  ) Definition at line 7012 of file cdrom.c. Referenced by CdRomStartIo(). { PIO_STACK_LOCATION currentIrpStack = IoGetCurrentIrpStackLocation(Irp); ULONG ioctl = currentIrpStack->Parameters.DeviceIoControl.IoControlCode; PVOID systemBuffer = Irp->AssociatedIrp.SystemBuffer; ASSERT(systemBuffer); if ((ioctl != IOCTL_DISK_GET_DRIVE_LAYOUT) && (ioctl != IOCTL_DISK_GET_DRIVE_LAYOUT_EX) && (ioctl != IOCTL_DISK_GET_PARTITION_INFO) && (ioctl != IOCTL_DISK_GET_PARTITION_INFO_EX)) { TraceLog((CdromDebugError, "CdromFakePartitionInfo: unhandled ioctl %x\n", ioctl)); Irp->IoStatus.Status = STATUS_INTERNAL_ERROR; Irp->IoStatus.Information = 0; CdRomCompleteIrpAndStartNextPacketSafely(CommonExtension->DeviceObject, Irp); return; } // // nothing to fail from this point on, so set the size appropriately // and set irp's status to success. // TraceLog((CdromDebugWarning, "CdromFakePartitionInfo: incoming ioctl %x\n", ioctl)); Irp->IoStatus.Status = STATUS_SUCCESS; switch (ioctl) { case IOCTL_DISK_GET_DRIVE_LAYOUT: Irp->IoStatus.Information = FIELD_OFFSET(DRIVE_LAYOUT_INFORMATION, PartitionEntry[1]); RtlZeroMemory(systemBuffer, FIELD_OFFSET(DRIVE_LAYOUT_INFORMATION, PartitionEntry[1])); break; case IOCTL_DISK_GET_DRIVE_LAYOUT_EX: Irp->IoStatus.Information = FIELD_OFFSET(DRIVE_LAYOUT_INFORMATION_EX, PartitionEntry[1]); RtlZeroMemory(systemBuffer, FIELD_OFFSET(DRIVE_LAYOUT_INFORMATION_EX, PartitionEntry[1])); break; case IOCTL_DISK_GET_PARTITION_INFO: Irp->IoStatus.Information = sizeof(PARTITION_INFORMATION); RtlZeroMemory(systemBuffer, sizeof(PARTITION_INFORMATION)); break; case IOCTL_DISK_GET_PARTITION_INFO_EX: Irp->IoStatus.Information = sizeof(PARTITION_INFORMATION_EX); RtlZeroMemory(systemBuffer, sizeof(PARTITION_INFORMATION_EX)); break; default: ASSERT(!"Invalid ioctl should not have reached this point\n"); break; } // // if we are getting the drive layout, then we need to start by // adding some of the non-partition stuff that says we have // exactly one partition available. // if (ioctl == IOCTL_DISK_GET_DRIVE_LAYOUT) { PDRIVE_LAYOUT_INFORMATION layout; layout = (PDRIVE_LAYOUT_INFORMATION)systemBuffer; layout->PartitionCount = 1; layout->Signature = 1; systemBuffer = (PVOID)(layout->PartitionEntry); ioctl = IOCTL_DISK_GET_PARTITION_INFO; } else if (ioctl == IOCTL_DISK_GET_DRIVE_LAYOUT_EX) { PDRIVE_LAYOUT_INFORMATION_EX layoutEx; layoutEx = (PDRIVE_LAYOUT_INFORMATION_EX)systemBuffer; layoutEx->PartitionStyle = PARTITION_STYLE_MBR; layoutEx->PartitionCount = 1; layoutEx->Mbr.Signature = 1; systemBuffer = (PVOID)(layoutEx->PartitionEntry); ioctl = IOCTL_DISK_GET_PARTITION_INFO_EX; } // // NOTE: the local var 'ioctl' is now modified to either EX or // non-EX version. the local var 'systemBuffer' is now pointing // to the partition information structure. // if (ioctl == IOCTL_DISK_GET_PARTITION_INFO) { PPARTITION_INFORMATION partitionInfo; partitionInfo = (PPARTITION_INFORMATION)systemBuffer; partitionInfo->RewritePartition = FALSE; partitionInfo->RecognizedPartition = TRUE; partitionInfo->PartitionType = PARTITION_FAT32; partitionInfo->BootIndicator = FALSE; partitionInfo->HiddenSectors = 0; partitionInfo->StartingOffset.QuadPart = 0; partitionInfo->PartitionLength = CommonExtension->PartitionLength; partitionInfo->PartitionNumber = 0; } else { PPARTITION_INFORMATION_EX partitionInfo; partitionInfo = (PPARTITION_INFORMATION_EX)systemBuffer; partitionInfo->PartitionStyle = PARTITION_STYLE_MBR; partitionInfo->RewritePartition = FALSE; partitionInfo->Mbr.RecognizedPartition = TRUE; partitionInfo->Mbr.PartitionType = PARTITION_FAT32; partitionInfo->Mbr.BootIndicator = FALSE; partitionInfo->Mbr.HiddenSectors = 0; partitionInfo->StartingOffset.QuadPart = 0; partitionInfo->PartitionLength = CommonExtension->PartitionLength; partitionInfo->PartitionNumber = 0; } TraceLog((CdromDebugWarning, "CdromFakePartitionInfo: finishing ioctl %x\n", currentIrpStack->Parameters.DeviceIoControl.IoControlCode)); // // complete the irp // CdRomCompleteIrpAndStartNextPacketSafely(CommonExtension->DeviceObject, Irp); return; }