mt.h

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/*++
 
Module Name:
 
    mt.h
 
Purpose:
 
    This module contains the header files & prototypes required for user mode interactions with kernel services. (System Calls)
 
Author:
 
    slep (Matanel) 2025.
 
Revision History:
 
--*/
 
#ifndef X86_MATANEL_MT_H
#define X86_MATANEL_MT_H
 
#include "core.h"
 
// Maximum number of syscalls
#define MAX_SYSCALLS 256
typedef uint64_t(*SyscallHandler)(uint64_t, uint64_t, uint64_t, uint64_t, uint64_t, uint64_t);
 
#define MtCurrentProcess() -1
#define MtCurrentThread() -2
 
typedef enum _USER_ALLOCATION_TYPE {
    PAGE_EXECUTE_READ = 0x10, // PRESENT
    PAGE_EXECUTE_READWRITE = 0x20, // PRESENT | RW
    PAGE_READWRITE = 0x30, // PRESENT | RW | NX
    PAGE_READONLY = 0x40, // PRESENT | NX
    PAGE_NOACCESS = 0x50 // NONE.
} USER_ALLOCATION_TYPE;
 
void
MtSetupSyscall(
    void
);
 
void
MtSyscallHandler(
    IN PTRAP_FRAME TrapFrame
);
 
// System calls
MTSTATUS
MtAllocateVirtualMemory(
    IN HANDLE Process,
    _In_Opt _Out_Opt void** BaseAddress,
    IN size_t NumberOfBytes,
    IN uint8_t AllocationType
);
 
MTSTATUS
MtOpenProcess(
    IN uint32_t ProcessId,
    OUT PHANDLE ProcessHandle,
    IN ACCESS_MASK DesiredAccess
);
 
MTSTATUS
MtTerminateProcess(
    IN HANDLE ProcessHandle,
    IN MTSTATUS ExitStatus
);
 
MTSTATUS
MtReadFile(
    IN HANDLE FileHandle,
    IN uint64_t FileOffset,
    OUT void* Buffer,
    IN size_t BufferSize,
    _Out_Opt size_t* BytesRead
);
 
MTSTATUS
MtWriteFile(
    IN HANDLE FileHandle,
    IN uint64_t FileOffset,
    IN void* Buffer,
    IN size_t BufferSize,
    _Out_Opt size_t* BytesWritten
);
 
MTSTATUS
MtCreateFile(
    IN const char* path,
    IN ACCESS_MASK DesiredAccess,
    OUT PHANDLE FileHandleOut
);
 
MTSTATUS
MtClose(
    IN HANDLE hObject
);
 
MTSTATUS
MtTerminateThread(
    IN HANDLE ThreadHandle,
    IN MTSTATUS ExitStatus
);
 
#endif