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Add main source file and placeholder hooks.

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Signed-off-by: aixxe <me@aixxe.net>
This commit is contained in:
aixxe
2016-12-20 20:20:39 +00:00
parent 27eb1e65e2
commit 2f9b1f444d
12 changed files with 304 additions and 0 deletions
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113
src/Basehook.cpp Normal file
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/*
cstrike-basehook-linux -- Internal base for Counter-Strike: Source.
Copyright (C) 2016, aixxe. (www.aixxe.net)
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with cstrike-basehook-linux. If not, see <http://www.gnu.org/licenses/>.
*/
#include "Basehook.h"
#include "Hooks/Hooks.h"
ICvar* cvar = nullptr;
IPanel* panel = nullptr;
ISurface* matsurface = nullptr;
IVModelInfoClient* modelinfo = nullptr;
ILauncherMgr* launchermgr = nullptr;
IInputSystem* inputsystem = nullptr;
IInputInternal* inputinternal = nullptr;
IVEngineClient* engine = nullptr;
IVModelRender* modelrender = nullptr;
IVDebugOverlay* debugoverlay = nullptr;
IBaseClientDLL* clientdll = nullptr;
IMaterialSystem* matsystem = nullptr;
IClientEntityList* entitylist = nullptr;
IGameEventManager2* gameevents = nullptr;
CInput* input = nullptr;
CGlobalVarsBase* globalvars = nullptr;
CRC32_ProcessBufferFn CRC32_ProcessBuffer = NULL;
NetVars netvars;
std::unique_ptr<VMTHook> sdl_hook;
std::unique_ptr<VMTHook> panel_hook;
std::unique_ptr<VMTHook> clientdll_hook;
std::unique_ptr<VMTHook> modelrender_hook;
std::unique_ptr<VMTHook> inputinternal_hook;
extern "C" void __attribute__((constructor)) css_basehook_open() {
// Get class pointers from game libraries using partial interface versions.
cvar = GetInterface<ICvar>("bin/libvstdlib.so", "VEngineCvar0");
panel = GetInterface<IPanel>("bin/vgui2.so", "VGUI_Panel0");
matsurface = GetInterface<ISurface>("bin/vguimatsurface.so", "VGUI_Surface0");
modelinfo = GetInterface<IVModelInfoClient>("bin/engine.so", "VModelInfoClient0");
inputsystem = GetInterface<IInputSystem>("bin/inputsystem.so", "InputSystemVersion0");
inputinternal = GetInterface<IInputInternal>("bin/vgui2.so", "VGUI_InputInternal0");
engine = GetInterface<IVEngineClient>("bin/engine.so", "VEngineClient0");
modelrender = GetInterface<IVModelRender>("bin/engine.so", "VEngineModel0");
debugoverlay = GetInterface<IVDebugOverlay>("bin/engine.so", "VDebugOverlay0");
clientdll = GetInterface<IBaseClientDLL>("bin/client.so", "VClient0");
matsystem = GetInterface<IMaterialSystem>("bin/materialsystem.so", "VMaterialSystem0");
entitylist = GetInterface<IClientEntityList>("bin/client.so", "VClientEntityList0");
gameevents = GetInterface<IGameEventManager2>("bin/engine.so", "GAMEEVENTSMANAGER002");
// Scan for the 'CRC32_ProcessBuffer' function.
CRC32_ProcessBuffer = reinterpret_cast<CRC32_ProcessBufferFn>(
FindPattern("bin/client.so", "\x55\x89\xE5\x57\x56\x53\x83\xEC\x08\x8B\x4D\x10", "xxxxxxxxxxxx")
);
// Hook 'FrameStageNotify' and 'CreateMove' from IBaseClientDLL.
clientdll_hook = std::make_unique<VMTHook>(clientdll);
clientdll_hook->HookFunction(reinterpret_cast<void*>(Hooks::CreateMove), 21);
clientdll_hook->HookFunction(reinterpret_cast<void*>(Hooks::FrameStageNotify), 35);
// Hook 'PaintTraverse' from IPanel.
panel_hook = std::make_unique<VMTHook>(panel);
panel_hook->HookFunction(reinterpret_cast<void*>(Hooks::PaintTraverse), 42);
// Hook 'DrawModelExecute' from IVModelRender.
modelrender_hook = std::make_unique<VMTHook>(modelrender);
modelrender_hook->HookFunction(reinterpret_cast<void*>(Hooks::DrawModelExecute), 19);
// Hook 'PumpWindowsMessageLoop' and 'ShowPixels' from ILauncherMgr.
launchermgr = **reinterpret_cast<ILauncherMgr***>(
FindPattern("bin/launcher.so", "\x24\x8B\x1D\x00\x00\x00\x00", "xxx????") + 3
);
sdl_hook = std::make_unique<VMTHook>(launchermgr);
sdl_hook->HookFunction(reinterpret_cast<void*>(Hooks::PumpWindowsMessageLoop), 15);
sdl_hook->HookFunction(reinterpret_cast<void*>(Hooks::ShowPixels), 29);
// Hook 'SetKeyCodeState' and 'SetMouseCodeState' from IInputInternal.
inputinternal_hook = std::make_unique<VMTHook>(inputinternal);
inputinternal_hook->HookFunction(reinterpret_cast<void*>(Hooks::SetKeyCodeState), 83);
inputinternal_hook->HookFunction(reinterpret_cast<void*>(Hooks::SetMouseCodeState), 84);
// Get a pointer to CInput from 'IN_ActivateMouse' in IBaseClientDLL.
input = **reinterpret_cast<CInput***>(
clientdll_hook->GetOriginalFunction<uintptr_t>(14) + 1
);
// Get a pointer to CGlobalVarsBase from 'HUDUpdate' in IBaseClientDLL.
globalvars = **reinterpret_cast<CGlobalVarsBase***>(
clientdll_hook->GetOriginalFunction<uintptr_t>(11) + 8
);
}
extern "C" void __attribute__((destructor)) css_basehook_close() {
cvar->ConsoleColorPrintf(Color(255, 150, 150), "Unloaded from game successfully.\n");
}