驅動程式 - Kernel Mode Driver Framework (KMDF) - 使用範例 - C/C++ (WDF) - PNP - Handle IOCTL IRP

參考資訊：
https://wasm.in/
http://four-f.narod.ru/
https://github.com/steward-fu/ddk

main.c

#include <ntddk.h>
#include <wdf.h>
 
#define DEV_NAME L"\\Device\\MyDriver"
#define SYM_NAME L"\\DosDevices\\MyDriver"
 
#define IOCTL_TEST CTL_CODE(FILE_DEVICE_UNKNOWN, 0x800, METHOD_BUFFERED, FILE_ANY_ACCESS)

void IrpFileCreate(WDFDEVICE myDevice, WDFREQUEST myRequest, WDFFILEOBJECT myFileObject)
{    
    DbgPrint("IRP_MJ_CREATE");
    WdfRequestComplete(myRequest, STATUS_SUCCESS);
}
 
void IrpFileClose(WDFFILEOBJECT myFileObject)
{
    DbgPrint("IRP_MJ_CLOSE");
}
 
void IrpIOCTL(WDFQUEUE myQueue, WDFREQUEST myRequest, size_t myOutLen, size_t myInLen, ULONG myCode)
{
    if (myCode = IOCTL_TEST) {
        DbgPrint("IOCTL_TEST");
    }
    WdfRequestComplete(myRequest, STATUS_SUCCESS);
}
 
NTSTATUS AddDevice(WDFDRIVER myDriver, PWDFDEVICE_INIT pMyDeviceInit)
{
    WDFDEVICE device = { 0 };
    UNICODE_STRING szDevName = { 0 };
    UNICODE_STRING szSymName = { 0 };
    WDF_IO_QUEUE_CONFIG io_cfg = { 0 };
    WDF_FILEOBJECT_CONFIG file_cfg = { 0 };
     
    RtlInitUnicodeString(&szDevName, DEV_NAME);
    RtlInitUnicodeString(&szSymName, SYM_NAME);
    WdfDeviceInitAssignName(pMyDeviceInit, &szDevName);
     
    WdfDeviceInitSetIoType(pMyDeviceInit, WdfDeviceIoBuffered);
    WDF_FILEOBJECT_CONFIG_INIT(&file_cfg, IrpFileCreate, IrpFileClose, NULL);
    WdfDeviceInitSetFileObjectConfig(pMyDeviceInit, &file_cfg, WDF_NO_OBJECT_ATTRIBUTES);
    WdfDeviceCreate(&pMyDeviceInit, WDF_NO_OBJECT_ATTRIBUTES, &device);
    WdfDeviceCreateSymbolicLink(device, &szSymName);
     
    WDF_IO_QUEUE_CONFIG_INIT_DEFAULT_QUEUE(&io_cfg, WdfIoQueueDispatchSequential);
    io_cfg.EvtIoDeviceControl = IrpIOCTL;
    return WdfIoQueueCreate(device, &io_cfg, WDF_NO_OBJECT_ATTRIBUTES, WDF_NO_HANDLE);
}
 
NTSTATUS DriverEntry(PDRIVER_OBJECT pMyDriver, PUNICODE_STRING pRegistry)
{
    WDF_DRIVER_CONFIG config = { 0 };
 
    WDF_DRIVER_CONFIG_INIT(&config, AddDevice);
    return WdfDriverCreate(pMyDriver, pRegistry, WDF_NO_OBJECT_ATTRIBUTES, &config, WDF_NO_HANDLE);
}

app.c

#include <windows.h>
#include <winioctl.h>
#include <stdio.h>
#include <stdlib.h>
  
#define IOCTL_TEST      CTL_CODE(FILE_DEVICE_UNKNOWN, 0x800, METHOD_BUFFERED,   FILE_ANY_ACCESS)
#define IOCTL_GET_BUF   CTL_CODE(FILE_DEVICE_UNKNOWN, 0x800, METHOD_BUFFERED,   FILE_ANY_ACCESS)
#define IOCTL_SET_BUF   CTL_CODE(FILE_DEVICE_UNKNOWN, 0x801, METHOD_BUFFERED,   FILE_ANY_ACCESS)
#define IOCTL_GET_DIR   CTL_CODE(FILE_DEVICE_UNKNOWN, 0x800, METHOD_OUT_DIRECT, FILE_ANY_ACCESS)
#define IOCTL_SET_DIR   CTL_CODE(FILE_DEVICE_UNKNOWN, 0x801, METHOD_IN_DIRECT,  FILE_ANY_ACCESS)
#define IOCTL_GET_NEI   CTL_CODE(FILE_DEVICE_UNKNOWN, 0x800, METHOD_NEITHER,    FILE_ANY_ACCESS)
#define IOCTL_SET_NEI   CTL_CODE(FILE_DEVICE_UNKNOWN, 0x801, METHOD_NEITHER,    FILE_ANY_ACCESS)
 
int main(int argc, char **argv)
{
    DWORD dwRet = 0;
    HANDLE hFile = NULL;
    char szBuffer[255] = { "I am error" };
  
    hFile = CreateFile("\\\\.\\MyDriver", GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);
 
    if (argc > 1) {
        dwRet = strlen(szBuffer);
        printf("SET: %s, %d\n", szBuffer, dwRet);
        if (!strcmp(argv[1], "BUF")) {
            DeviceIoControl(hFile, IOCTL_SET_BUF, szBuffer, dwRet, NULL, 0, &dwRet, NULL);
             
            dwRet = 0;
            memset(szBuffer, 0, sizeof(szBuffer));
            DeviceIoControl(hFile, IOCTL_GET_BUF, NULL, 0, szBuffer, sizeof(szBuffer), &dwRet, NULL);
        }
        else if (!strcmp(argv[1], "DIR")) {
            DeviceIoControl(hFile, IOCTL_SET_DIR, szBuffer, dwRet, NULL, 0, &dwRet, NULL);
             
            dwRet = 0;
            memset(szBuffer, 0, sizeof(szBuffer));
            DeviceIoControl(hFile, IOCTL_GET_DIR, NULL, 0, szBuffer, sizeof(szBuffer), &dwRet, NULL);
        }
        else if (!strcmp(argv[1], "NEI")) {
            DeviceIoControl(hFile, IOCTL_SET_NEI, szBuffer, dwRet, NULL, 0, &dwRet, NULL);
             
            dwRet = 0;
            memset(szBuffer, 0, sizeof(szBuffer));
            DeviceIoControl(hFile, IOCTL_GET_NEI, NULL, 0, szBuffer, sizeof(szBuffer), &dwRet, NULL);
        }
        printf("GET: %s, %d\n", szBuffer, dwRet);
    }
    else {
        DeviceIoControl(hFile, IOCTL_TEST, NULL, 0, NULL, 0, &dwRet, NULL);    
    }
    CloseHandle(hFile);
    return 0;
}

完成