CTL_CODE说明

DeviceIoControl函数的第二个参数IoControlCode就是由CTL_CODE宏定义的,下边我们可以了解一下CTL_CODE的内容。
CTL_CODE:用于创建一个唯一的32位系统I/O控制代码,这个控制代码包括4部分组成:DeviceType(设备类型,高16位(16-31位)),Access(访问限制,14-15位),Function(功能2-13位),Method(I/O访问内存使用方式)。
详情:https://msdn.microsoft.com/en-us/library/ms902086.aspx

转载于:https://www.cnblogs.com/jacklu/p/4422912.html

/* File Kmd.h By WzrterFX */ #pragma once #ifndef KMD_H #define KMD_H #include <cstdint> #include <ntifs.h> namespace Kmd { namespace _NtifsApi { extern "C" __declspec(dllimport) NTSTATUS __stdcall IoCreateDriver( IN PUNICODE_STRING DriverName, IN PDRIVER_INITIALIZE InitializationFunction ); extern "C" __declspec(dllimport) NTSTATUS __stdcall PsLookupProcessByProcessId( IN HANDLE ProcessId, OUT PEPROCESS* Process ); extern "C" __declspec(dllimport) NTSTATUS __stdcall MmCopyVirtualMemory( IN PEPROCESS FromProcess, IN PVOID FromAddress, IN PEPROCESS ToProcess, IN PVOID ToAddress, IN SIZE_T BufferSize, IN KPROCESSOR_MODE PreviousMode, OUT PSIZE_T NumberOfBytesCopied ); } namespace _IoCtls { constexpr std::uint32_t attach = CTL_CODE(FILE_DEVICE_UNKNOWN, 0x01, METHOD_BUFFERED, FILE_SPECIAL_ACCESS ); constexpr std::uint32_t read = CTL_CODE(FILE_DEVICE_UNKNOWN, 0x02, METHOD_BUFFERED, FILE_SPECIAL_ACCESS ); constexpr std::uint32_t write = CTL_CODE(FILE_DEVICE_UNKNOWN, 0x03, METHOD_BUFFERED, FILE_SPECIAL_ACCESS ); } class Kmd { private: PDEVICE_OBJECT _deviceObject; typedef struct __AttachRequest { HANDLE process; } AttachRequest, * PAttachRequest; typedef struct __CopyMemoryRequest { PVOID from; PVOID to; SIZE_T requested; } CopyMemoryRequest, * PCopyMemoryRequest; typedef struct _KmdRequest { AttachRequest attachRequest; CopyMemoryRequest copyMemoryRequest; } KmdRequest, * PKmdRequest; static NTSTATUS KmdControl(PDEVICE_OBJECT deviceObject, PIRP io); public: NTSTATUS Create(PDRIVER_OBJECT driverObject); }; } #endif /* !KMD_H */添加注释
最新发布
03-22
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