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 [硬件东东]Simple Drive Program
网上资源
newqiang 发表于 2006/1/8 20:44:26 |
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#include <wdm.h>
#define NT_DEVICE_NAME L"\\Device\\Example"#define DOS_DEVICE_NAME L"\\DosDevices\\Example"VOID DriverUnload( IN PDRIVER_OBJECT pDriverObject );NTSTATUS DispatchFunction( IN PDEVICE_OBJECT pDeviceObject, IN PIRP Irp );NTSTATUS DispatchRead( IN PDEVICE_OBJECT pDeviceObject, IN PIRP Irp );NTSTATUS DispatchWrite( IN PDEVICE_OBJECT pDeviceObject, IN PIRP Irp );NTSTATUS DriverEntry( IN PDRIVER_OBJECT pDriverObject, IN PIRP Irp ){ NTSTATUS status = STATUS_SUCCESS; PDEVICE_OBJECT pDeviceObject = NULL; UNICODE_STRING usNtDeviceName, usDosDeviceName; int nIndex = 0;
RtlInitUnicodeString( &usNtDeviceName, NT_DEVICE_NAME );
status = IoCreateDevice( pDriverObject, 0, &usNtDeviceName, FILE_DEVICE_UNKNOWN, FILE_DEVICE_SECURE_OPEN, FALSE, &pDeviceObject ); if ( NT_SUCCESS(status) ) { DbgPrint( "DriverEntry" ); pDriverObject->DriverUnload = DriverUnload; RtlInitUnicodeString( &usDosDeviceName, DOS_DEVICE_NAME ); IoCreateSymbolicLink( &usDosDeviceName, &usNtDeviceName ); for (nIndex; nIndex <= IRP_MJ_MAXIMUM_FUNCTION; nIndex ++) pDriverObject->MajorFunction[ nIndex ] = DispatchFunction; }
return status;}
VOID DriverUnload( IN PDRIVER_OBJECT pDriverObject ){ UNICODE_STRING usDosDeviceName; RtlInitUnicodeString( &usDosDeviceName, DOS_DEVICE_NAME ); DbgPrint( "DriverUnload" ); IoDeleteSymbolicLink( &usDosDeviceName ); IoDeleteDevice( pDriverObject->DeviceObject );}
NTSTATUS DispatchFunction( IN PDEVICE_OBJECT pDeviceObject, IN PIRP Irp ){ NTSTATUS status = STATUS_SUCCESS; PIO_STACK_LOCATION irpStack = NULL;
irpStack = IoGetCurrentIrpStackLocation( Irp ); switch ( irpStack->MajorFunction ) { case IRP_MJ_CREATE: break; case IRP_MJ_READ: DispatchRead( pDeviceObject, Irp ); break; case IRP_MJ_WRITE: DispatchWrite( pDeviceObject, Irp ); break; default: DbgPrint( "DispatchFunction" ); break; } IoCompleteRequest( Irp, IO_NO_INCREMENT ); return status;}
NTSTATUS DispatchRead( IN PDEVICE_OBJECT pDeviceObject, IN PIRP Irp ){ NTSTATUS status = STATUS_SUCCESS; PIO_STACK_LOCATION irpStack = NULL; char *pBuf = "88888888"; int nLen = sizeof ("88888888"); irpStack = IoGetCurrentIrpStackLocation( Irp ); if ( irpStack ) { ProbeForWrite( Irp->UserBuffer, irpStack->Parameters.Read.Length, TYPE_ALIGNMENT(char) ); RtlCopyMemory( Irp->UserBuffer, pBuf, nLen ); } return status;}
NTSTATUS DispatchWrite( IN PDEVICE_OBJECT pDeviceObject, IN PIRP Irp ){ NTSTATUS status = STATUS_SUCCESS; PIO_STACK_LOCATION irpStack = NULL; irpStack = IoGetCurrentIrpStackLocation( Irp ); if ( irpStack ) { ProbeForRead( Irp->UserBuffer, irpStack->Parameters.Read.Length, TYPE_ALIGNMENT(char) ); DbgPrint( Irp->UserBuffer ); } return status;}
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