C++中DeviceIoCteatol的用法实例

本文是一篇译文，主要以实例形式讲述了C++中DeviceIoCteatol的用法。分享给大家供大家参考。具体方法如下：

应用程序代码如下：

    BYTE bytBuffer_1[512]; 
    BYTE bytBuffer_2[512]; 
    CHAR string[2048]; 
    HANDLE hDevice, hDriver; 
    BOOL bRet; 
bRet = DeviceIoControl(hDriver, IOCTL_WRITE, (LPVOID)bytBuffer_1, 512, 
                            NULL, 0, &dwBytesReturned, NULL); 
    if(bRet == FALSE) 
    { 
        printf("\nFailed - DeviceIoControl - IOCTL_WRITE.\n"); 
        return 0; 
    } 
     
    printf("\nWrite MBR using I/O port operations...\n"); 
 
    bRet = ReadFile(hDevice, (LPVOID)bytBuffer_1, 512, &dwBytesReturned, NULL); 
 
    if(bRet == FALSE) 
    { 
        printf("\nFailed - ReadFile - the second one.\n"); 
        return 0; 
    } 
     
    printf("\nRead MBR using the ReadFile function...\n"); 
    printf("- - - - - - - - - - - - - - - - - - - - - - - - - - - -"); 
 
    sprintf(string, "\n"); 
 
    for(DWORD n = 0; n < 512; n++) 
    { 
        sprintf(string, "%s %02X", string, bytBuffer_1[n]); 
 
        if(((n + 1) % 16) == 0) 
            sprintf(string, "%s\n", string); 
 
        if(((n + 1) % 16) == 8) 
            sprintf(string, "%s -", string); 
    } 
 
    printf("%s", string); 
 
    printf("- - - - - - - - - - - - - - - - - - - - - - - - - - - -"); 
 
    bRet = DeviceIoControl(hDriver, IOCTL_READ, NULL, 0, (LPVOID)bytBuffer_2, 512, 
                                    &dwBytesReturned, NULL); 
    if(bRet == FALSE) 
    { 
        printf("\nFailed - DeviceIoControl - IOCTL_READ - the second one.\n"); 
        return 0; 
    } 
 
    printf("\nRead MBR using I/O port operations...\n"); 
    printf("- - - - - - - - - - - - - - - - - - - - - - - - - - - -"); 
 
    sprintf(string, "\n"); 
 
    for(DWORD t = 0; t < 512; t++) 
    { 
        sprintf(string, "%s %02X", string, bytBuffer_2[t]); 
 
        if(((t + 1) % 16) == 0) 
            sprintf(string, "%s\n", string); 
 
        if(((t + 1) % 16) == 8) 
            sprintf(string, "%s -", string); 
    } 
 
    printf("%s", string); 
 
    printf("- - - - - - - - - - - - - - - - - - - - - - - - - - - -"); 
 
    printf("\nSucceed - Kill HDDGMon.\n"); 
    return 1; 
}</div>

驱动代码如下：

 
#define DEVICE_NAME L"\\Device\\KillHDDGMon" 
#define LINK_NAME   L"\\DosDevices\\KillHDDGMon" 
 
#define IOCTL_WRITE CTL_CODE(FILE_DEVICE_UNKNOWN, 0x800, METHOD_BUFFERED, FILE_ANY_ACCESS) 
#define IOCTL_READ  CTL_CODE(FILE_DEVICE_UNKNOWN, 0x801, METHOD_BUFFERED, FILE_ANY_ACCESS) 
 
VOID Unload( 
    __in  struct _DRIVER_OBJECT *DriverObject 
    ) 
{ 
    UNICODE_STRING ustrLinkName; 
 
    DbgPrint("Driver Unload....."); 
 
    RtlInitUnicodeString(&ustrLinkName, LINK_NAME); 
    IoDeleteSymbolicLink(&ustrLinkName); 
 
    IoDeleteDevice(DriverObject->DeviceObject); 
} 
 
NTSTATUS DispatchCreateClose( 
    __inout  struct _DEVICE_OBJECT *DeviceObject, 
    __inout  struct _IRP *Irp 
    ) 
{ 
    NTSTATUS status = STATUS_SUCCESS; 
    KdPrint(("Dispatch CreateClose...")); 
 
    Irp->IoStatus.Status = status; 
    IoCompleteRequest(Irp, IO_NO_INCREMENT); 
 
    return status; 
} 
 
NTSTATUS DispatchIoctl( 
    __inout  struct _DEVICE_OBJECT *DeviceObject, 
    __inout  struct _IRP *Irp 
    ) 
{ 
    NTSTATUS status = STATUS_SUCCESS; 
    PIO_STACK_LOCATION pIrpStack; 
    ULONG outSize; 
    ULONG IoControlCode; 
    PVOID pIoBuffer; 
 
    KdPrint(("Dispatch Ioctl...")); 
 
    pIoBuffer = Irp->AssociatedIrp.SystemBuffer; 
    pIrpStack = IoGetCurrentIrpStackLocation(Irp); 
    outSize = pIrpStack->Parameters.DeviceIoControl.OutputBufferLength; 
    IoControlCode = pIrpStack->Parameters.DeviceIoControl.IoControlCode; 
 
    switch (IoControlCode) 
    { 
    case IOCTL_WRITE: