;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;; ;; ;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;; ;; Distributed under terms of the GNU General Public License ;; ;; ;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; $Revision$ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;; ;; ;; SYSENTER ENTRY ;; ;; ;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; align 32 sysenter_entry: ; Настраиваем стек mov esp, [ss:tss._esp0] sti push ebp ; save app esp + 4 mov ebp, [ebp] ; ebp - original ebp ;------------------ pushad cld call protect_from_terminate movzx eax, byte [esp+28] mov edx, dword [esp+20] call dword [servetable2 + eax * 4] call unprotect_from_terminate popad ;------------------ xchg ecx, [ss:esp] ; в вершин стека - app ecx, ecx - app esp + 4 sub ecx, 4 xchg edx, [ecx] ; edx - return point, & save original edx push edx mov edx, [ss:esp + 4] mov [ecx + 4], edx ; save original ecx pop edx sysexit ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;; ;; ;; SYSTEM CALL ENTRY ;; ;; ;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; align 16 i40: pushad cld call protect_from_terminate movzx eax, byte [esp+28] mov edx, dword [esp+20] call dword [servetable2 + eax * 4] call unprotect_from_terminate popad iretd ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;; ;; ;; SYSCALL ENTRY ;; ;; ;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; align 32 syscall_entry: ; cli syscall clear IF xchg esp, [ss:tss._esp0] push ecx lea ecx, [esp+4] xchg ecx, [ss:tss._esp0] sti push ecx mov ecx, [ecx] ;------------------ pushad cld call protect_from_terminate movzx eax, byte [esp+28] mov edx, dword [esp+20] call dword [servetable2 + eax * 4] call unprotect_from_terminate popad ;------------------ mov ecx, [ss:esp+4] pop esp sysret iglobal ;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;; SYSTEM FUNCTIONS TABLE ;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;; align 4 servetable2: dd syscall_draw_window ; 0-DrawWindow dd syscall_setpixel ; 1-SetPixel dd sys_getkey ; 2-GetKey dd sys_clock ; 3-GetTime dd syscall_writetext ; 4-WriteText dd delay_hs_unprotected ; 5-DelayHs dd undefined_syscall ; 6-deprecated OpenRamdiskFile dd syscall_putimage ; 7-PutImage dd syscall_button ; 8-DefineButton dd sys_cpuusage ; 9-GetProcessInfo dd sys_waitforevent ; 10-WaitForEvent dd sys_getevent ; 11-CheckForEvent dd sys_redrawstat ; 12-BeginDraw and EndDraw dd syscall_drawrect ; 13-DrawRect dd syscall_getscreensize ; 14-GetScreenSize dd sys_background ; 15-bgr dd sys_cachetodiskette ; 16-FlushFloppyCache dd sys_getbutton ; 17-GetButton dd sys_system ; 18-System Services dd paleholder ; 19-reserved dd sys_midi ; 20-ResetMidi and OutputMidi dd sys_setup ; 21-SetMidiBase,SetKeymap,SetShiftKeymap,. dd sys_settime ; 22-setting date,time,clock and alarm-clock dd sys_wait_event_timeout ; 23-TimeOutWaitForEvent dd syscall_cdaudio ; 24-PlayCdTrack,StopCd and GetCdPlaylist dd syscall_putarea_backgr ; 25-Put Area to background dd sys_getsetup ; 26-GetMidiBase,GetKeymap,GetShiftKeymap,. dd undefined_syscall ; 27-reserved dd undefined_syscall ; 28-reserved dd sys_date ; 29-GetDate dd sys_current_directory ; 30-Get/SetCurrentDirectory dd undefined_syscall ; 31-reserved dd undefined_syscall ; 32-reserved dd undefined_syscall ; 33-reserved dd syscall_getpixel_WinMap ; 34-GetPixel WinMap dd syscall_getpixel ; 35-GetPixel dd syscall_getarea ; 36-GetArea dd readmousepos ; 37-GetMousePosition_ScreenRelative,. dd syscall_drawline ; 38-DrawLine dd sys_getbackground ; 39-GetBackgroundSize,ReadBgrData,. dd set_app_param ; 40-WantEvents dd undefined_syscall ; 41- deprecated GetIrqOwner dd undefined_syscall ; 42- deprecated ReadIrqData dd sys_outport ; 43-SendDeviceData dd undefined_syscall ; 44- deprecated ProgramIrqs dd undefined_syscall ; 45- deprecated ReserveIrq and FreeIrq dd syscall_reserveportarea ; 46-ReservePortArea and FreePortArea dd display_number ; 47-WriteNum dd syscall_display_settings ; 48-SetRedrawType and SetButtonType dd sys_apm ; 49-Advanced Power Management (APM) dd syscall_set_window_shape ; 50-Window shape & scale dd syscall_threads ; 51-Threads dd undefined_syscall ; 52- deprecated Stack driver status dd undefined_syscall ; 53- deprecated Socket interface dd sys_clipboard ; 54-Custom clipboard dd sound_interface ; 55-Sound interface dd undefined_syscall ; 56-reserved dd sys_pcibios ; 57-PCI BIOS32 dd undefined_syscall ; 58-deprecated Common file system interface dd undefined_syscall ; 59-reserved dd sys_IPC ; 60-Inter Process Communication dd sys_gs ; 61-Direct graphics access dd pci_api ; 62-PCI functions dd sys_msg_board ; 63-System message board dd sys_resize_app_memory ; 64-Resize application memory usage dd sys_putimage_palette ; 65-PutImagePalette dd sys_process_def ; 66-Process definitions - keyboard dd syscall_move_window ; 67-Window move or resize dd f68 ; 68-Some internal services dd sys_debug_services ; 69-Debug dd file_system_lfn ; 70-Common file system interface, version 2 dd syscall_window_settings ; 71-Window settings dd sys_sendwindowmsg ; 72-Send window message dd blit_32 ; 73-blitter; dd sys_network ; 74-reserved for new stack dd sys_socket ; 75-reserved for new stack dd sys_protocols ; 76-reserved for new stack dd sys_posix ; posix support dd undefined_syscall ; 78-free dd undefined_syscall ; 79-free dd fileSystemUnicode ; 80-File system interface for different encodings dd setInt0x40 ; 81-Implementation of the function in the system times 255 - ( ($-servetable2) /4 ) dd undefined_syscall dd sys_end ; -1-end application endg ; Author Pavel Iakovlev ; Return EAX = 0 security kernel, error set function ; Return Else EAX > 0 success set function align 32 setInt0x40: ; !!! kernel security !!! and ebx, 0FFh mov eax, dword [servetable2 + ebx * 4] cmp eax, undefined_syscall jne errorSet0x40 ; ----------------------- pushad add edx, 16 stdcall kernel_alloc, edx push eax pop dword[tempPointerAlloc] popad push ebx push dword[tempPointerAlloc] pop eax mov ebx, eax add eax, edx push 0 pop dword[hashDataFunction1] push 1 pop dword[hashDataFunction2] loopCopyMemory: xor edx, edx mov dl, byte[ecx] mov byte[ebx], dl ; hash security function add dword[hashDataFunction1], edx mov edx, dword[hashDataFunction1] add dword[hashDataFunction2], edx ;----------------------------- inc ebx inc ecx cmp ebx, eax jne loopCopyMemory pop ebx ; check hash security data ; cmp edi, dword[hashDataFunction1] ; jne errorSet0x40 ; cmp esi, dword[hashDataFunction2] ; jne errorSet0x40 ;------------------------------- mov eax, dword[tempPointerAlloc] mov dword [servetable2 + ebx * 4], eax jmp successSet0x40 errorSet0x40: xor eax, eax successSet0x40: ret tempPointerAlloc dd ? hashDataFunction1 dd ? hashDataFunction2 dd ? ;-------------------