communications.hpp

#pragma once

#include <Windows.h>

/* IOCTL Codes needed for our driver */

// Request to read virtual user memory (memory of a program) from kernel space
#define IO_READ_REQUEST CTL_CODE(FILE_DEVICE_UNKNOWN, 0x0666 /* Our Custom Code */, METHOD_BUFFERED, FILE_SPECIAL_ACCESS)

// Request to write virtual user memory (memory of a program) from kernel space
#define IO_WRITE_REQUEST CTL_CODE(FILE_DEVICE_UNKNOWN, 0x0667 /* Our Custom Code */, METHOD_BUFFERED, FILE_SPECIAL_ACCESS)

// Request to retrieve the process id of csgo process, from kernel space
#define IO_GET_ID_REQUEST CTL_CODE(FILE_DEVICE_UNKNOWN, 0x0668 /* Our Custom Code */, METHOD_BUFFERED, FILE_SPECIAL_ACCESS)

// Request to retrieve the base address of client.dll in csgo.exe from kernel space
#define IO_GET_MODULE_REQUEST CTL_CODE(FILE_DEVICE_UNKNOWN, 0x0669 /* Our Custom Code */, METHOD_BUFFERED, FILE_SPECIAL_ACCESS)

// Request to retrieve the base address of engine.dll in csgo.exe from kernel space
#define IO_GET_ENGINE_MODULE_REQUEST CTL_CODE(FILE_DEVICE_UNKNOWN, 0x0670 /* Our Custom Code */, METHOD_BUFFERED, FILE_SPECIAL_ACCESS)

// Request size of Client.dll
#define IO_GET_MODULE_REQUEST_LENGTH CTL_CODE(FILE_DEVICE_UNKNOWN, 0x0671 /* Our Custom Code */, METHOD_BUFFERED, FILE_SPECIAL_ACCESS)

// Request size of Engine.dll
#define IO_GET_ENGINE_MODULE_REQUEST_LENGTH CTL_CODE(FILE_DEVICE_UNKNOWN, 0x0672 /* Our Custom Code */, METHOD_BUFFERED, FILE_SPECIAL_ACCESS)


typedef struct _KERNEL_READ_REQUEST
{
	ULONG ProcessId;

	ULONG Address;
	PVOID pBuff;
	ULONG Size;

} KERNEL_READ_REQUEST, * PKERNEL_READ_REQUEST;

typedef struct _KERNEL_WRITE_REQUEST
{
	ULONG ProcessId;

	ULONG Address;
	PVOID pBuff;
	ULONG Size;

} KERNEL_WRITE_REQUEST, * PKERNEL_WRITE_REQUEST;


typedef struct _RTL_PROCESS_MODULE_INFORMATION
{
	HANDLE Section;
	PVOID MappedBase;
	PVOID ImageBase;
	ULONG ImageSize;
	ULONG Flags;
	USHORT LoadOrderIndex;
	USHORT InitOrderIndex;
	USHORT LoadCount;
	USHORT OffsetToFileName;
	UCHAR FullPathName[256];
} RTL_PROCESS_MODULE_INFORMATION, * PRTL_PROCESS_MODULE_INFORMATION;

typedef struct _RTL_PROCESS_MODULES
{
	ULONG NumberOfModules;
	RTL_PROCESS_MODULE_INFORMATION Modules[1];
} RTL_PROCESS_MODULES, * PRTL_PROCESS_MODULES;