有没有驱动读写的教程

愤怒的Rabbit

驱动方面，完全零基础。   一直想学习驱动读写，网上教程也很多，但是网上教程百花齐放。
每个都不一样，这个看看，那个看看，最后感觉自己不知道看了个啥....
特来求助论坛各位大佬，给点零基础能看得懂的吧

愤怒的Rabbit

感觉会驱动的人好多，都哪里看得教程啊

hongqingfeng

愤怒的Rabbit 发表于 2024-12-4 15:27
感觉会驱动的人好多，都哪里看得教程啊

哔哩哔哩，要么自己线下报班

愤怒的Rabbit

hongqingfeng 发表于 2024-12-4 15:27
哔哩哔哩，要么自己线下报班

bilibili太多了，有的讲的很精简，但有的讲的又过于啰嗦，不知道看哪种好

hongqingfeng

愤怒的Rabbit 发表于 2024-12-4 15:31
bilibili太多了，有的讲的很精简，但有的讲的又过于啰嗦，不知道看哪种好

见仁见智，不好评判

承易

#include <ntddk.h>

#define DEVICE_NAME L"\\Device\\MyDevice"
#define SYMBOLIC_LINK_NAME L"\\DosDevices\\MyDevice"

UNICODE_STRING DeviceName;
UNICODE_STRING SymbolicLinkName;
PDEVICE_OBJECT DeviceObject;

NTSTATUS CreateClose(PDEVICE_OBJECT DeviceObject, PIRP Irp) {
    Irp->IoStatus.Status = STATUS_SUCCESS;
    Irp->IoStatus.Information = 0;
    IoCompleteRequest(Irp, IO_NO_INCREMENT);
    return STATUS_SUCCESS;
}

NTSTATUS ReadWrite(PDEVICE_OBJECT DeviceObject, PIRP Irp) {
    PIO_STACK_LOCATION stack = IoGetCurrentIrpStackLocation(Irp);
    PVOID buffer = Irp->AssociatedIrp.SystemBuffer;
    ULONG length = stack->Parameters.Read.Length;

    // 这里可以添加读写逻辑
    DbgPrint("Read/Write operation: %lu bytes\n", length);

    Irp->IoStatus.Status = STATUS_SUCCESS;
    Irp->IoStatus.Information = length;
    IoCompleteRequest(Irp, IO_NO_INCREMENT);
    return STATUS_SUCCESS;
}

void UnloadDriver(PDRIVER_OBJECT DriverObject) {
    IoDeleteSymbolicLink(&SymbolicLinkName);
    IoDeleteDevice(DriverObject->DeviceObject);
    DbgPrint("Driver unloaded\n");
}

extern "C" NTSTATUS DriverEntry(PDRIVER_OBJECT DriverObject, PUNICODE_STRING RegistryPath) {
    RtlInitUnicodeString(&DeviceName, DEVICE_NAME);
    RtlInitUnicodeString(&SymbolicLinkName, SYMBOLIC_LINK_NAME);

    IoCreateDevice(DriverObject, 0, &DeviceName, FILE_DEVICE_UNKNOWN, 0, FALSE, &DeviceObject);
    IoCreateSymbolicLink(&SymbolicLinkName, &DeviceName);

    DriverObject->MajorFunction[IRP_MJ_CREATE] = CreateClose;
    DriverObject->MajorFunction[IRP_MJ_CLOSE] = CreateClose;
    DriverObject->MajorFunction[IRP_MJ_READ] = ReadWrite;
    DriverObject->MajorFunction[IRP_MJ_WRITE] = ReadWrite;
    DriverObject->DriverUnload = UnloadDriver;

    DbgPrint("Driver loaded\n");
    return STATUS_SUCCESS;
}

#include <windows.h>
#include <stdio.h>

#define DEVICE_NAME "\\\\.\\MyDevice"

int main() {
    HANDLE hDevice = CreateFile(DEVICE_NAME, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
    if (hDevice == INVALID_HANDLE_VALUE) {
        printf("Failed to open device\n");
        return 1;
    }

    char buffer[100];
    DWORD bytesRead;

    if (ReadFile(hDevice, buffer, sizeof(buffer), &bytesRead, NULL)) {
        printf("Read %lu bytes: %s\n", bytesRead, buffer);
    } else {
        printf("Failed to read from device\n");
    }

    char writeBuffer[] = "Hello from user mode!";
    DWORD bytesWritten;

    if (WriteFile(hDevice, writeBuffer, sizeof(writeBuffer), &bytesWritten, NULL)) {
        printf("Wrote %lu bytes\n", bytesWritten);
    } else {
        printf("Failed to write to device\n");
    }

    CloseHandle(hDevice);
    return 0;
}

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