mirror of
https://github.com/UzixLS/KernelEx.git
synced 2025-07-19 07:21:20 +03:00
130 lines
3.0 KiB
C++
Executable File
130 lines
3.0 KiB
C++
Executable File
/*
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* KernelEx
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* Copyright (C) 2008-2010, Xeno86
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*
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* This file is part of KernelEx source code.
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*
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* KernelEx is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published
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* by the Free Software Foundation; version 2 of the License.
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*
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* KernelEx is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU Make; see the file COPYING. If not, write to
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* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#include <windows.h>
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#include "thunks.h"
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#include "internals.h"
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#include "resolver.h"
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#include "../setup/loadstub.h"
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__declspec(naked)
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PROC ExportFromOrdinalStatic_thunk(IMAGE_NT_HEADERS* PEh, WORD ordinal)
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{
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__asm {
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mov eax, [ebp-4Ch] //tested w98fe 1998, w98se 2222, w98se 2226, wme 3000
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mov ecx, [eax]
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mov ax, [ecx+10h]
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movzx eax, ax
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mov edx, ppmteModTable
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mov edx, [edx]
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mov eax, [edx+4*eax]
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push eax //target IMTE
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push dword ptr [esp+4] //return address
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mov eax, [ebp+8]
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mov [esp+8], eax //caller MODREF
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mov dword ptr [esp+12], 1
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jmp ExportFromOrdinal
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}
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}
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__declspec(naked)
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PROC ExportFromNameStatic_thunk(IMAGE_NT_HEADERS* PEh, WORD hint, LPCSTR name)
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{
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__asm {
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mov eax, [ebp-4Ch] //tested w98fe 1998, w98se 2222, w98se 2226, wme 3000
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mov ecx, [eax]
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mov ax, [ecx+10h]
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movzx eax, ax
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mov edx, ppmteModTable
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mov edx, [edx]
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mov eax, [edx+4*eax]
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push eax //target IMTE
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push dword ptr [esp+4] //return address
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mov eax, [ebp+8]
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mov [esp+8], eax //caller MODREF
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mov dword ptr [esp+12], 1
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jmp ExportFromName
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}
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}
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/* stack on entry:
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* ret_addr
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* PEh
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* ordinal
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* edi
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* esi
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* ebx
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* caller_addr
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*/
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__declspec(naked)
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PROC ExportFromOrdinalDynamic_thunk(IMAGE_NT_HEADERS* PEh, WORD ordinal)
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{
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__asm {
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push edx //target IMTE
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push dword ptr [esp+4]
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push dword ptr [esp+20h] //tested w98se 2225
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call MRfromCallerAddr
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add esp, 4
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mov [esp+8], eax //caller MODREF
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mov dword ptr [esp+12], 0
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jmp ExportFromOrdinal
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}
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}
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__declspec(naked)
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PROC ExportFromNameDynamic_thunk(IMAGE_NT_HEADERS* PEh, WORD hint, LPCSTR name)
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{
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__asm {
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push edx //target IMTE
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push dword ptr [esp+4]
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push dword ptr [esp+24h] //tested w98se 2225
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call MRfromCallerAddr
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add esp, 4
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mov [esp+8], eax //caller MODREF
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mov dword ptr [esp+12], 0
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jmp ExportFromName
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}
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}
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BYTE mod_ext_ena;
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__declspec(naked)
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void SubSysCheck()
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{
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__asm {
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seta al /* is subsystem value above supported by OS? */
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push eax
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push [ebp+8]
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call are_extensions_enabled_module
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add esp, 4
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mov mod_ext_ena, al
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cmp al, 1
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clc
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pop ecx
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jz __done
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cmp cl, 0
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__done:
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jmp [old_jtab+4*JTAB_SYS_CHK]
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}
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}
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