269 lines
11 KiB
NASM
269 lines
11 KiB
NASM
; syscall_stubs.asm - user-mode INT 0x40 stubs exported by syscall.dll (MASM64)
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;
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; Calling convention (kernel side):
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; RAX = syscall number
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; RCX = arg 0
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; RDX = arg 1
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; R8 = arg 2
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; R9 = arg 3
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; R10 = arg 4 (our extension - loaded from the stack by SYSCALL_STUB6)
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; R11 = arg 5 (our extension - loaded from the stack by SYSCALL_STUB6)
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;
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; User-mode callers follow standard MS x64: args 1-4 in RCX/RDX/R8/R9,
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; args 5+ on the stack above the home area ([rsp+28h], [rsp+30h], ...).
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;
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; SYSCALL_STUB2/3 - 4 or fewer args: pure register passing, no stack read.
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; SYSCALL_STUB5 - exactly 5 args: loads [rsp+28h] -> R10 only.
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; SYSCALL_STUB6 - 5 or 6 args: loads [rsp+28h] -> R10 and [rsp+30h] -> R11.
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;
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; Handle lifecycle:
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; SysCloseHandle is the single close stub for every object type.
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; There is no SysCloseFile - files are closed through the unified path,
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; exactly like mutexes, semaphores, events, and queues.
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INCLUDE syscall_nr.inc
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SYS_USER_APC_FRAME_Magic EQU 0
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SYS_USER_APC_FRAME_ReturnToken EQU 8
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SYS_USER_APC_FRAME_Routine EQU 16
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SYS_USER_APC_FRAME_NormalContext EQU 24
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SYS_USER_APC_FRAME_SystemArgument1 EQU 32
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SYS_USER_APC_FRAME_SystemArgument2 EQU 40
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.CODE
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; ---------------------------------------------------------------------------
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SYSCALL_STUB2 MACRO name, nr
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PUBLIC Sys&name
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Sys&name PROC EXPORT
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mov rax, nr
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int 40h
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ret
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Sys&name ENDP
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ENDM
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; ---------------------------------------------------------------------------
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SYSCALL_STUB3 MACRO name, nr
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PUBLIC Sys&name
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Sys&name PROC EXPORT
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mov rax, nr
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int 40h
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ret
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Sys&name ENDP
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ENDM
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; ---------------------------------------------------------------------------
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SYSCALL_STUB5 MACRO name, nr
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PUBLIC Sys&name
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Sys&name PROC EXPORT
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mov r10, [rsp+28h] ; 5th argument
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mov rax, nr
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int 40h
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ret
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Sys&name ENDP
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ENDM
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; ---------------------------------------------------------------------------
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SYSCALL_STUB6 MACRO name, nr
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PUBLIC Sys&name
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Sys&name PROC EXPORT
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mov r10, [rsp+28h] ; 5th argument
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mov r11, [rsp+30h] ; 6th argument
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mov rax, nr
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int 40h
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ret
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Sys&name ENDP
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ENDM
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; ---------------------------------------------------------------------------
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; Process & thread lifecycle
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; ---------------------------------------------------------------------------
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SYSCALL_STUB2 ExitProcess, SYS_EXIT_PROCESS
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SYSCALL_STUB2 ExitThread, SYS_EXIT_THREAD
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SYSCALL_STUB2 CreateProcess, SYS_CREATE_PROCESS
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SYSCALL_STUB3 WaitSingle, SYS_WAIT_SINGLE
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SYSCALL_STUB2 WaitMany, SYS_WAIT_MANY
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SYSCALL_STUB2 OpenInputQueue, SYS_OPEN_INPUT_QUEUE
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SYSCALL_STUB2 GetProcessExitCode, SYS_GET_PROCESS_EXIT_CODE
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SYSCALL_STUB2 OpenProcess, SYS_OPEN_PROCESS
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SYSCALL_STUB2 KillProcess, SYS_KILL_PROCESS
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SYSCALL_STUB2 GetProcessList, SYS_GET_PROCESS_LIST
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SYSCALL_STUB2 GetProcessPid, SYS_GET_PROCESS_PID
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SYSCALL_STUB2 GetThreadList, SYS_GET_THREAD_LIST
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SYSCALL_STUB2 LoadModule, SYS_LOAD_MODULE
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SYSCALL_STUB2 UnloadModule, SYS_UNLOAD_MODULE
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SYSCALL_STUB2 GetModuleInfo, SYS_GET_MODULE_INFO
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SYSCALL_STUB2 GetModuleExport, SYS_GET_MODULE_EXPORT
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SYSCALL_STUB2 GetModuleList, SYS_GET_MODULE_LIST
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SYSCALL_STUB2 CreateThread, SYS_CREATE_THREAD
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SYSCALL_STUB2 GetCurrentTid, SYS_GET_CURRENT_TID
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SYSCALL_STUB2 GetCurrentPid, SYS_GET_CURRENT_PID
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SYSCALL_STUB2 SetThreadPriority, SYS_SET_THREAD_PRIORITY
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SYSCALL_STUB2 Yield, SYS_YIELD
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SYSCALL_STUB2 Sleep, SYS_SLEEP
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SYSCALL_STUB2 SetUserApcDispatcher, SYS_SET_USER_APC_DISPATCHER
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SYSCALL_STUB2 ApcReturn, SYS_APC_RETURN
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; ---------------------------------------------------------------------------
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; User APC dispatcher
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; ---------------------------------------------------------------------------
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PUBLIC SysUserApcDispatcher
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SysUserApcDispatcher PROC EXPORT
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; Kernel enters here with RSP pointing at SYS_USER_APC_FRAME. There is no
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; return address because this is an IRET redirection. Preserve RBX because
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; the original user context resumes after SysApcReturn.
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push rbx
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lea rbx, [rsp + 8] ; original injected RSP = frame pointer
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sub rsp, 32 ; shadow space; RSP is already call-aligned
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mov rcx, [rbx + SYS_USER_APC_FRAME_NormalContext]
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mov rdx, [rbx + SYS_USER_APC_FRAME_SystemArgument1]
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mov r8, [rbx + SYS_USER_APC_FRAME_SystemArgument2]
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mov rax, [rbx + SYS_USER_APC_FRAME_Routine]
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call rax
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add rsp, 32
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mov rcx, rbx ; SysApcReturn(frame)
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mov rbx, [rsp] ; restore original user RBX
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add rsp, 8
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mov rax, SYS_APC_RETURN
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int 40h
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SysUserApcDispatcher_Failed:
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jmp SysUserApcDispatcher_Failed
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SysUserApcDispatcher ENDP
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; ---------------------------------------------------------------------------
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; Virtual memory and handles
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; ---------------------------------------------------------------------------
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SYSCALL_STUB6 AllocVm, SYS_ALLOC_VM
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SYSCALL_STUB2 FreeVm, SYS_FREE_VM
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SYSCALL_STUB2 ProtectVm, SYS_PROTECT_VM
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SYSCALL_STUB2 QueryVm, SYS_QUERY_VM
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SYSCALL_STUB2 CloseHandle, SYS_CLOSE_HANDLE
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SYSCALL_STUB2 DuplicateHandle, SYS_DUPLICATE_HANDLE
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; ---------------------------------------------------------------------------
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; Synchronization objects
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; ---------------------------------------------------------------------------
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SYSCALL_STUB2 CreateMutex, SYS_CREATE_MUTEX
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SYSCALL_STUB2 TryAcquireMutex, SYS_TRY_ACQUIRE_MUTEX
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SYSCALL_STUB2 ReleaseMutex, SYS_RELEASE_MUTEX
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SYSCALL_STUB2 CreateSem, SYS_CREATE_SEM
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SYSCALL_STUB2 TryWaitSem, SYS_TRY_WAIT_SEM
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SYSCALL_STUB2 SignalSem, SYS_SIGNAL_SEM
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SYSCALL_STUB2 CreateEvent, SYS_CREATE_EVENT
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SYSCALL_STUB2 SignalEvent, SYS_SIGNAL_EVENT
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SYSCALL_STUB2 ClearEvent, SYS_CLEAR_EVENT
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; ---------------------------------------------------------------------------
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; Queues and named queues
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; ---------------------------------------------------------------------------
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SYSCALL_STUB2 CreateQueue, SYS_CREATE_QUEUE
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SYSCALL_STUB2 SendQueue, SYS_SEND_QUEUE
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SYSCALL_STUB2 RecvQueue, SYS_RECV_QUEUE
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SYSCALL_STUB2 PublishQueue, SYS_PUBLISH_QUEUE
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SYSCALL_STUB2 OpenNamedQueue, SYS_OPEN_NAMED_QUEUE
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SYSCALL_STUB2 OpenNamedQueueOwnerProcess, SYS_OPEN_NAMED_QUEUE_OWNER_PROCESS
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; ---------------------------------------------------------------------------
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; Files, directories, and current directory
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; ---------------------------------------------------------------------------
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SYSCALL_STUB2 OpenFile, SYS_OPEN_FILE
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SYSCALL_STUB2 ReadFile, SYS_READ_FILE
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SYSCALL_STUB2 WriteFile, SYS_WRITE_FILE
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SYSCALL_STUB2 ReadFileAsync, SYS_READ_FILE_ASYNC
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SYSCALL_STUB2 WriteFileAsync, SYS_WRITE_FILE_ASYNC
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SYSCALL_STUB2 CancelIo, SYS_CANCEL_IO
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SYSCALL_STUB2 SeekFile, SYS_SEEK_FILE
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SYSCALL_STUB2 GetFilePos, SYS_GET_FILE_POS
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SYSCALL_STUB2 GetFileSize, SYS_GET_FILE_SIZE
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SYSCALL_STUB2 GetFileStat, SYS_GET_FILE_STAT
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SYSCALL_STUB2 StatFile, SYS_STAT_FILE
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SYSCALL_STUB2 TruncateFile, SYS_TRUNCATE_FILE
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SYSCALL_STUB2 FlushFile, SYS_FLUSH_FILE
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SYSCALL_STUB2 DeleteFile, SYS_DELETE_FILE
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SYSCALL_STUB2 RenameFile, SYS_RENAME_FILE
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SYSCALL_STUB2 LockFile, SYS_LOCK_FILE
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SYSCALL_STUB2 UnlockFile, SYS_UNLOCK_FILE
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SYSCALL_STUB2 OpenDir, SYS_OPEN_DIR
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SYSCALL_STUB2 ReadDir, SYS_READ_DIR
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SYSCALL_STUB2 CreateDir, SYS_CREATE_DIR
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SYSCALL_STUB2 RemoveDir, SYS_REMOVE_DIR
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SYSCALL_STUB2 SetCwd, SYS_SET_CWD
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SYSCALL_STUB2 RealPath, SYS_REAL_PATH
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; ---------------------------------------------------------------------------
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; Console and graphics
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; ---------------------------------------------------------------------------
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SYSCALL_STUB2 WriteConsole, SYS_WRITE_CONSOLE
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SYSCALL_STUB2 GetConsoleInfo, SYS_GET_CONSOLE_INFO
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SYSCALL_STUB2 SetConsoleCursor, SYS_SET_CONSOLE_CURSOR
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SYSCALL_STUB6 FillConsoleCharacter, SYS_FILL_CONSOLE_CHARACTER
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SYSCALL_STUB6 FillConsoleAttribute, SYS_FILL_CONSOLE_ATTRIBUTE
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SYSCALL_STUB6 PutScreenChar, SYS_PUT_SCREEN_CHAR
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SYSCALL_STUB5 CreateSurface, SYS_CREATE_SURFACE
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SYSCALL_STUB2 MapSurface, SYS_MAP_SURFACE
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SYSCALL_STUB2 QuerySurface, SYS_QUERY_SURFACE
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SYSCALL_STUB2 PresentSurface, SYS_PRESENT_SURFACE
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SYSCALL_STUB2 ClearScreen, SYS_CLEAR_SCREEN
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SYSCALL_STUB2 GetScreenSize, SYS_GET_SCREEN_SIZE
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SYSCALL_STUB2 QueryDisplayInfo, SYS_QUERY_DISPLAY_INFO
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; ---------------------------------------------------------------------------
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; Input
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; ---------------------------------------------------------------------------
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SYSCALL_STUB2 PollKeyboard, SYS_POLL_KEYBOARD
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SYSCALL_STUB2 IsKeyDown, SYS_IS_KEY_DOWN
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SYSCALL_STUB2 ReadKeyboardChar, SYS_READ_KEYBOARD_CHAR
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SYSCALL_STUB2 ReadKey, SYS_READ_KEY
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SYSCALL_STUB2 GetKeyModifiers, SYS_GET_KEY_MODIFIERS
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SYSCALL_STUB2 ReadInputEvent, SYS_READ_INPUT_EVENT
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SYSCALL_STUB2 PeekInputEvent, SYS_PEEK_INPUT_EVENT
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SYSCALL_STUB2 PeekMouse, SYS_PEEK_MOUSE
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SYSCALL_STUB2 ReadMouse, SYS_READ_MOUSE
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SYSCALL_STUB2 GetMousePos, SYS_GET_MOUSE_POS
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; ---------------------------------------------------------------------------
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; Time and debug
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; ---------------------------------------------------------------------------
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SYSCALL_STUB2 CreateTimer, SYS_CREATE_TIMER
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SYSCALL_STUB2 SetTimer, SYS_SET_TIMER
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SYSCALL_STUB2 CancelTimer, SYS_CANCEL_TIMER
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SYSCALL_STUB2 GetTick, SYS_GET_TICK
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SYSCALL_STUB2 GetTickFrequency, SYS_GET_TICK_FREQUENCY
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SYSCALL_STUB2 PrintDebug, SYS_PRINT_DEBUG
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SYSCALL_STUB2 QueryTrapFrame, SYS_QUERY_TRAP_FRAME
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; ---------------------------------------------------------------------------
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; Native sockets
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; ---------------------------------------------------------------------------
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SYSCALL_STUB2 CreateSocket, SYS_CREATE_SOCKET
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SYSCALL_STUB2 SocketIoAsync, SYS_SOCKET_IO_ASYNC
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SYSCALL_STUB2 BindSocket, SYS_BIND_SOCKET
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SYSCALL_STUB2 ListenSocket, SYS_LISTEN_SOCKET
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SYSCALL_STUB2 AcceptSocket, SYS_ACCEPT_SOCKET
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SYSCALL_STUB2 ConnectSocket, SYS_CONNECT_SOCKET
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SYSCALL_STUB6 SendSocket, SYS_SEND_SOCKET
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SYSCALL_STUB6 RecvSocket, SYS_RECV_SOCKET
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SYSCALL_STUB2 ShutdownSocket, SYS_SHUTDOWN_SOCKET
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SYSCALL_STUB2 SendToSocket, SYS_SEND_TO_SOCKET
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SYSCALL_STUB2 RecvFromSocket, SYS_RECV_FROM_SOCKET
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SYSCALL_STUB2 ResolveHost, SYS_RESOLVE_HOST
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SYSCALL_STUB2 SetSocketOption, SYS_SET_SOCKET_OPTION
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SYSCALL_STUB2 GetSocketOption, SYS_GET_SOCKET_OPTION
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SYSCALL_STUB2 Poll, SYS_POLL
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SYSCALL_STUB2 GetMemoryStatus, SYS_GET_MEMORY_STATUS
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SYSCALL_STUB2 QueryKernelStats, SYS_QUERY_KERNEL_STATS
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SYSCALL_STUB2 GetSystemTime, SYS_GET_SYSTEM_TIME
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SYSCALL_STUB5 CreateFileMapping, SYS_CREATE_FILE_MAPPING
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SYSCALL_STUB6 MapFile, SYS_MAP_FILE
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END
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