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Fix build

This commit is contained in:
Nemirtingas 2019-09-01 20:53:16 +02:00
parent 1785ae6eaf
commit b9cd9ae6c2
26 changed files with 1544 additions and 109 deletions
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302
ImGui/impls/linux/imgui_impl_x11.cpp Normal file
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@ -0,0 +1,302 @@
// dear imgui: Platform Binding for Windows (standard windows API for 32 and 64 bits applications)
// This needs to be used along with a Renderer (e.g. DirectX11, OpenGL3, Vulkan..)
// Implemented features:
// [?] Platform: Clipboard support
// [?] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
// [?] Platform: Keyboard arrays indexed using
// [?] Platform: Gamepad support. Enabled with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
#include "imgui.h"
#include "imgui_impl_x11.h"
#include <X11/X.h>
#include <X11/Xlib.h>
#include <X11/keysym.h>
#include <GL/glew.h>
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2019-08-31: Initial X11 implementation
// X11 Data
static Display* g_Display = nullptr;
static ImGuiMouseCursor g_LastMouseCursor = ImGuiMouseCursor_COUNT;
static bool g_HasGamepad = false;
static bool g_WantUpdateHasGamepad = true;
// Functions
bool ImGui_ImplX11_Init(void *display)
{
//if (!::QueryPerformanceFrequency((LARGE_INTEGER *)&g_TicksPerSecond))
// return false;
//if (!::QueryPerformanceCounter((LARGE_INTEGER *)&g_Time))
// return false;
// Setup back-end capabilities flags
g_Display = reinterpret_cast<Display*>(display);
ImGuiIO& io = ImGui::GetIO();
io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors; // We can honor GetMouseCursor() values (optional)
io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos; // We can honor io.WantSetMousePos requests (optional, rarely used)
io.BackendPlatformName = "imgui_impl_x11";
io.ImeWindowHandle = nullptr;
// Keyboard mapping. ImGui will use those indices to peek into the io.KeysDown[] array that we will update during the application lifetime.
io.KeyMap[ImGuiKey_Tab] = -1;
io.KeyMap[ImGuiKey_LeftArrow] = -1;
io.KeyMap[ImGuiKey_RightArrow] = -1;
io.KeyMap[ImGuiKey_UpArrow] = -1;
io.KeyMap[ImGuiKey_DownArrow] = -1;
io.KeyMap[ImGuiKey_PageUp] = -1;
io.KeyMap[ImGuiKey_PageDown] = -1;
io.KeyMap[ImGuiKey_Home] = -1;
io.KeyMap[ImGuiKey_End] = -1;
io.KeyMap[ImGuiKey_Insert] = -1;
io.KeyMap[ImGuiKey_Delete] = -1;
io.KeyMap[ImGuiKey_Backspace] = -1;
io.KeyMap[ImGuiKey_Space] = -1;
io.KeyMap[ImGuiKey_Enter] = -1;
io.KeyMap[ImGuiKey_Escape] = -1;
io.KeyMap[ImGuiKey_A] = -1;
io.KeyMap[ImGuiKey_C] = -1;
io.KeyMap[ImGuiKey_V] = -1;
io.KeyMap[ImGuiKey_X] = -1;
io.KeyMap[ImGuiKey_Y] = -1;
io.KeyMap[ImGuiKey_Z] = -1;
return true;
}
void ImGui_ImplX11_Shutdown()
{
g_Display = nullptr;
}
static bool ImGui_ImplWin32_UpdateMouseCursor()
{
/*
ImGuiIO& io = ImGui::GetIO();
if (io.ConfigFlags & ImGuiConfigFlags_NoMouseCursorChange)
return false;
ImGuiMouseCursor imgui_cursor = ImGui::GetMouseCursor();
if (imgui_cursor == ImGuiMouseCursor_None || io.MouseDrawCursor)
{
// Hide OS mouse cursor if imgui is drawing it or if it wants no cursor
::SetCursor(NULL);
}
else
{
// Show OS mouse cursor
LPTSTR win32_cursor = IDC_ARROW;
switch (imgui_cursor)
{
case ImGuiMouseCursor_Arrow: win32_cursor = IDC_ARROW; break;
case ImGuiMouseCursor_TextInput: win32_cursor = IDC_IBEAM; break;
case ImGuiMouseCursor_ResizeAll: win32_cursor = IDC_SIZEALL; break;
case ImGuiMouseCursor_ResizeEW: win32_cursor = IDC_SIZEWE; break;
case ImGuiMouseCursor_ResizeNS: win32_cursor = IDC_SIZENS; break;
case ImGuiMouseCursor_ResizeNESW: win32_cursor = IDC_SIZENESW; break;
case ImGuiMouseCursor_ResizeNWSE: win32_cursor = IDC_SIZENWSE; break;
case ImGuiMouseCursor_Hand: win32_cursor = IDC_HAND; break;
}
::SetCursor(::LoadCursor(NULL, win32_cursor));
}
*/
return true;
}
static void ImGui_ImplWin32_UpdateMousePos()
{
ImGuiIO& io = ImGui::GetIO();
// Set OS mouse position if requested (rarely used, only when ImGuiConfigFlags_NavEnableSetMousePos is enabled by user)
//if (io.WantSetMousePos)
//{
// POINT pos = { (int)io.MousePos.x, (int)io.MousePos.y };
// ::ClientToScreen(g_hWnd, &pos);
// ::SetCursorPos(pos.x, pos.y);
//}
// Set mouse position
io.MousePos = ImVec2(-FLT_MAX, -FLT_MAX);
}
/* TODO: support linux gamepad ?
#ifdef _MSC_VER
#pragma comment(lib, "xinput")
#endif
// Gamepad navigation mapping
static void ImGui_ImplWin32_UpdateGamepads()
{
ImGuiIO& io = ImGui::GetIO();
memset(io.NavInputs, 0, sizeof(io.NavInputs));
if ((io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) == 0)
return;
// Calling XInputGetState() every frame on disconnected gamepads is unfortunately too slow.
// Instead we refresh gamepad availability by calling XInputGetCapabilities() _only_ after receiving WM_DEVICECHANGE.
if (g_WantUpdateHasGamepad)
{
XINPUT_CAPABILITIES caps;
g_HasGamepad = (XInputGetCapabilities(0, XINPUT_FLAG_GAMEPAD, &caps) == ERROR_SUCCESS);
g_WantUpdateHasGamepad = false;
}
XINPUT_STATE xinput_state;
io.BackendFlags &= ~ImGuiBackendFlags_HasGamepad;
if (g_HasGamepad && XInputGetState(0, &xinput_state) == ERROR_SUCCESS)
{
const XINPUT_GAMEPAD& gamepad = xinput_state.Gamepad;
io.BackendFlags |= ImGuiBackendFlags_HasGamepad;
#define MAP_BUTTON(NAV_NO, BUTTON_ENUM) { io.NavInputs[NAV_NO] = (gamepad.wButtons & BUTTON_ENUM) ? 1.0f : 0.0f; }
#define MAP_ANALOG(NAV_NO, VALUE, V0, V1) { float vn = (float)(VALUE - V0) / (float)(V1 - V0); if (vn > 1.0f) vn = 1.0f; if (vn > 0.0f && io.NavInputs[NAV_NO] < vn) io.NavInputs[NAV_NO] = vn; }
MAP_BUTTON(ImGuiNavInput_Activate, XINPUT_GAMEPAD_A); // Cross / A
MAP_BUTTON(ImGuiNavInput_Cancel, XINPUT_GAMEPAD_B); // Circle / B
MAP_BUTTON(ImGuiNavInput_Menu, XINPUT_GAMEPAD_X); // Square / X
MAP_BUTTON(ImGuiNavInput_Input, XINPUT_GAMEPAD_Y); // Triangle / Y
MAP_BUTTON(ImGuiNavInput_DpadLeft, XINPUT_GAMEPAD_DPAD_LEFT); // D-Pad Left
MAP_BUTTON(ImGuiNavInput_DpadRight, XINPUT_GAMEPAD_DPAD_RIGHT); // D-Pad Right
MAP_BUTTON(ImGuiNavInput_DpadUp, XINPUT_GAMEPAD_DPAD_UP); // D-Pad Up
MAP_BUTTON(ImGuiNavInput_DpadDown, XINPUT_GAMEPAD_DPAD_DOWN); // D-Pad Down
MAP_BUTTON(ImGuiNavInput_FocusPrev, XINPUT_GAMEPAD_LEFT_SHOULDER); // L1 / LB
MAP_BUTTON(ImGuiNavInput_FocusNext, XINPUT_GAMEPAD_RIGHT_SHOULDER); // R1 / RB
MAP_BUTTON(ImGuiNavInput_TweakSlow, XINPUT_GAMEPAD_LEFT_SHOULDER); // L1 / LB
MAP_BUTTON(ImGuiNavInput_TweakFast, XINPUT_GAMEPAD_RIGHT_SHOULDER); // R1 / RB
MAP_ANALOG(ImGuiNavInput_LStickLeft, gamepad.sThumbLX, -XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE, -32768);
MAP_ANALOG(ImGuiNavInput_LStickRight, gamepad.sThumbLX, +XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE, +32767);
MAP_ANALOG(ImGuiNavInput_LStickUp, gamepad.sThumbLY, +XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE, +32767);
MAP_ANALOG(ImGuiNavInput_LStickDown, gamepad.sThumbLY, -XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE, -32767);
#undef MAP_BUTTON
#undef MAP_ANALOG
}
}
*/
void ImGui_ImplX11_NewFrame()
{
ImGuiIO& io = ImGui::GetIO();
IM_ASSERT(io.Fonts->IsBuilt() && "Font atlas not built! It is generally built by the renderer back-end. Missing call to renderer _NewFrame() function? e.g. ImGui_ImplOpenGL3_NewFrame().");
// Setup display size (every frame to accommodate for window resizing)
Window rootWnd = DefaultRootWindow(g_Display);
// Todo: use X11 to get this value
GLint m_viewport[4];
glGetIntegerv( GL_VIEWPORT, m_viewport );
io.DisplaySize.x = m_viewport[2];
io.DisplaySize.y = m_viewport[3];
/*
io.DisplaySize = ImVec2((float)(rect.right - rect.left), (float)(rect.bottom - rect.top));
// Setup time step
INT64 current_time;
::QueryPerformanceCounter((LARGE_INTEGER *)&current_time);
io.DeltaTime = (float)(current_time - g_Time) / g_TicksPerSecond;
g_Time = current_time;
// Read keyboard modifiers inputs
io.KeyCtrl = (::GetKeyState(VK_CONTROL) & 0x8000) != 0;
io.KeyShift = (::GetKeyState(VK_SHIFT) & 0x8000) != 0;
io.KeyAlt = (::GetKeyState(VK_MENU) & 0x8000) != 0;
io.KeySuper = false;
// io.KeysDown[], io.MousePos, io.MouseDown[], io.MouseWheel: filled by the WndProc handler below.
// Update OS mouse position
ImGui_ImplWin32_UpdateMousePos();
// Update OS mouse cursor with the cursor requested by imgui
ImGuiMouseCursor mouse_cursor = io.MouseDrawCursor ? ImGuiMouseCursor_None : ImGui::GetMouseCursor();
if (g_LastMouseCursor != mouse_cursor)
{
g_LastMouseCursor = mouse_cursor;
ImGui_ImplWin32_UpdateMouseCursor();
}
*/
// Update game controllers (if enabled and available)
//ImGui_ImplWin32_UpdateGamepads();
}
// Process Win32 mouse/keyboard inputs.
// You can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if dear imgui wants to use your inputs.
// - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application.
// - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application.
// Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags.
// PS: In this Win32 handler, we use the capture API (GetCapture/SetCapture/ReleaseCapture) to be able to read mouse coordinates when dragging mouse outside of our window bounds.
// PS: We treat DBLCLK messages as regular mouse down messages, so this code will work on windows classes that have the CS_DBLCLKS flag set. Our own example app code doesn't set this flag.
IMGUI_IMPL_API int ImGui_ImplX11_EventHandler(XEvent &event)
{
if (ImGui::GetCurrentContext() == NULL)
return 0;
ImGuiIO& io = ImGui::GetIO();
switch (event.type)
{
case ButtonPress:
switch(event.xbutton.button )
{
case Button1: case Button2: case Button3:
io.MouseDown[event.xbutton.button-1] = true;
break;
case Button4: // Mouse wheel up
event.xbutton.button = Button4;
//io.MouseWheel += (float)GET_WHEEL_DELTA_WPARAM(wParam) / (float)WHEEL_DELTA;
return 0;
case Button5: // Mouse wheel down
event.xbutton.button = Button5;
//io.MouseWheelH += (float)GET_WHEEL_DELTA_WPARAM(wParam) / (float)WHEEL_DELTA;
return 0;
}
break;
case ButtonRelease:
switch(event.xbutton.button )
{
case Button1: case Button2: case Button3:
io.MouseDown[event.xbutton.button-1] = false;
break;
}
break;
case KeyPress:
case KeyRelease:
break;
case MotionNotify:
io.MousePos.x = event.xmotion.x;
io.MousePos.y = event.xmotion.y;
break;
}
/*
case WM_KEYDOWN:
case WM_SYSKEYDOWN:
if (wParam < 256)
io.KeysDown[wParam] = 1;
return 0;
case WM_KEYUP:
case WM_SYSKEYUP:
if (wParam < 256)
io.KeysDown[wParam] = 0;
return 0;
case WM_CHAR:
// You can also use ToAscii()+GetKeyboardState() to retrieve characters.
io.AddInputCharacter((unsigned int)wParam);
return 0;
case WM_DEVICECHANGE:
if ((UINT)wParam == DBT_DEVNODES_CHANGED)
g_WantUpdateHasGamepad = true;
return 0;
}
*/
return 0;
}

21
ImGui/impls/linux/imgui_impl_x11.h Normal file
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@ -0,0 +1,21 @@
// dear imgui: Platform Binding for Windows (standard windows API for 32 and 64 bits applications)
// This needs to be used along with a Renderer (e.g. DirectX11, OpenGL3, Vulkan..)
// Implemented features:
// [X] Platform: Clipboard support (for Win32 this is actually part of core imgui)
// [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
// [X] Platform: Keyboard arrays indexed using VK_* Virtual Key Codes, e.g. ImGui::IsKeyPressed(VK_SPACE).
// [X] Platform: Gamepad support. Enabled with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
#pragma once
IMGUI_IMPL_API bool ImGui_ImplX11_Init(void* display);
IMGUI_IMPL_API void ImGui_ImplX11_Shutdown();
IMGUI_IMPL_API void ImGui_ImplX11_NewFrame();
// Handler for Win32 messages, update mouse/keyboard data.
// You may or not need this for your implementation, but it can serve as reference for handling inputs.
// Intentionally commented out to avoid dragging dependencies on <windows.h> types. You can COPY this line into your .cpp code instead.
/*
IMGUI_IMPL_API int ImGui_ImplX11_EventHandler(XEvent *event);
*/

4
ImGui/impls/windows/imgui_impl_dx10.cpp
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@ -23,7 +23,7 @@
// 2018-02-06: Misc: Removed call to ImGui::Shutdown() which is not available from 1.60 WIP, user needs to call CreateContext/DestroyContext themselves.
// 2016-05-07: DirectX10: Disabling depth-write.
#include "../imgui.h"
#include "../../imgui.h"
#include "imgui_impl_dx10.h"
// DirectX
@ -31,7 +31,7 @@
#include <d3d10_1.h>
#include <d3d10.h>
#include "../../overlay_experimental/ImGui_ShaderBlobs.h"
#include "../../../overlay_experimental/windows/ImGui_ShaderBlobs.h"
#ifdef USE_D3DCOMPILE
static ID3DBlob* g_pVertexShaderBlob = NULL;

4
ImGui/impls/windows/imgui_impl_dx11.cpp
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@ -23,14 +23,14 @@
// 2018-02-06: Misc: Removed call to ImGui::Shutdown() which is not available from 1.60 WIP, user needs to call CreateContext/DestroyContext themselves.
// 2016-05-07: DirectX11: Disabling depth-write.
#include "../imgui.h"
#include "../../imgui.h"
#include "imgui_impl_dx11.h"
// DirectX
#include <stdio.h>
#include <d3d11.h>
#include "../../overlay_experimental/ImGui_ShaderBlobs.h"
#include "../../../overlay_experimental/windows/ImGui_ShaderBlobs.h"
#ifdef USE_D3DCOMPILE
static ID3DBlob* g_pVertexShaderBlob = NULL;

4
ImGui/impls/windows/imgui_impl_dx12.cpp
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@ -23,14 +23,14 @@
// 2018-06-08: DirectX12: Use draw_data->DisplayPos and draw_data->DisplaySize to setup projection matrix and clipping rectangle (to ease support for future multi-viewport).
// 2018-02-22: Merged into master with all Win32 code synchronized to other examples.
#include "../imgui.h"
#include "../../imgui.h"
#include "imgui_impl_dx12.h"
// DirectX
#include <d3d12.h>
#include <dxgi1_4.h>
#include "../../overlay_experimental/ImGui_ShaderBlobs.h"
#include "../../../overlay_experimental/windows/ImGui_ShaderBlobs.h"
#ifdef USE_D3DCOMPILE
static ID3DBlob* g_pVertexShaderBlob = NULL;

2
ImGui/impls/windows/imgui_impl_dx9.cpp
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@ -22,7 +22,7 @@
// 2018-02-16: Misc: Obsoleted the io.RenderDrawListsFn callback and exposed ImGui_ImplDX9_RenderDrawData() in the .h file so you can call it yourself.
// 2018-02-06: Misc: Removed call to ImGui::Shutdown() which is not available from 1.60 WIP, user needs to call CreateContext/DestroyContext themselves.
#include "../imgui.h"
#include "../../imgui.h"
#include "imgui_impl_dx9.h"
// DirectX

2
ImGui/impls/windows/imgui_impl_win32.cpp
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@ -7,7 +7,7 @@
// [X] Platform: Keyboard arrays indexed using VK_* Virtual Key Codes, e.g. ImGui::IsKeyPressed(VK_SPACE).
// [X] Platform: Gamepad support. Enabled with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
#include "imgui.h"
#include "../../imgui.h"
#include "imgui_impl_win32.h"
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN

100
overlay_experimental/Base_Hook.cpp
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@ -8,68 +8,20 @@
#include "../detours/detours.h"
void Base_Hook::BeginHook()
{
DetourTransactionBegin();
DetourUpdateThread(GetCurrentThread());
}
#define DETOUR_HOOKBEGIN DetourTransactionBegin
#define DETOUR_UPDATETHREAD() DetourUpdateThread(GetCurrentThread())
#define DETOUR_ENDHOOK DetourTransactionCommit
#define DETOUR_HOOK DetourAttach
#define DETOUR_UNHOOK DetourDetach
void Base_Hook::EndHook()
{
DetourTransactionCommit();
}
void Base_Hook::HookFunc(std::pair<void**, void*> hook)
{
if( DetourAttach(hook.first, hook.second) == 0 )
_hooked_funcs.emplace_back(hook);
}
void Base_Hook::UnhookAll()
{
if (_hooked_funcs.size())
{
BeginHook();
std::for_each(_hooked_funcs.begin(), _hooked_funcs.end(), [](std::pair<void**, void*>& hook) {
DetourDetach(hook.first, hook.second);
});
EndHook();
_hooked_funcs.clear();
}
}
#else
#elif defined(__LINUX__)
#include "linux/Linux_Detour.h"
void Base_Hook::BeginHook()
{
Linux_Detour::transaction_begin();
Linux_Detour::update_thread(pthread_self());
}
void Base_Hook::EndHook()
{
Linux_Detour::transaction_commit();
}
void Base_Hook::HookFunc(std::pair<void**, void*> hook)
{
if( Linux_Detour::hook_func(hook.first, hook.second) == 0 )
_hooked_funcs.emplace_back(hook);
}
void Base_Hook::UnhookAll()
{
if (_hooked_funcs.size())
{
BeginHook();
std::for_each(_hooked_funcs.begin(), _hooked_funcs.end(), [](std::pair<void**, void*>& hook) {
Linux_Detour::unhook_func(hook.first, hook.second);
});
EndHook();
_hooked_funcs.clear();
}
}
#define DETOUR_HOOKBEGIN Linux_Detour::transaction_begin
#define DETOUR_UPDATETHREAD() Linux_Detour::update_thread(pthread_self())
#define DETOUR_ENDHOOK Linux_Detour::transaction_commit
#define DETOUR_HOOK Linux_Detour::hook_func
#define DETOUR_UNHOOK Linux_Detour::unhook_func
#endif
@ -87,4 +39,34 @@ const char* Base_Hook::get_lib_name() const
return "<no_name>";
}
void Base_Hook::BeginHook()
{
DETOUR_HOOKBEGIN();
DETOUR_UPDATETHREAD();
}
void Base_Hook::EndHook()
{
DETOUR_ENDHOOK();
}
void Base_Hook::HookFunc(std::pair<void**, void*> hook)
{
if( DETOUR_HOOK(hook.first, hook.second) == 0 )
_hooked_funcs.emplace_back(hook);
}
void Base_Hook::UnhookAll()
{
if (_hooked_funcs.size())
{
BeginHook();
std::for_each(_hooked_funcs.begin(), _hooked_funcs.end(), [](std::pair<void**, void*>& hook) {
DETOUR_UNHOOK(hook.first, hook.second);
});
EndHook();
_hooked_funcs.clear();
}
}
#endif//NO_OVERLAY

12
overlay_experimental/Renderer_Detector.cpp
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@ -6,12 +6,12 @@
constexpr int max_hook_retries = 500;
#ifdef STEAM_WIN32
#include "DX12_Hook.h"
#include "DX11_Hook.h"
#include "DX10_Hook.h"
#include "DX9_Hook.h"
#include "OpenGL_Hook.h"
#include "Windows_Hook.h"
#include "windows/DX12_Hook.h"
#include "windows/DX11_Hook.h"
#include "windows/DX10_Hook.h"
#include "windows/DX9_Hook.h"
#include "windows/OpenGL_Hook.h"
#include "windows/Windows_Hook.h"
static decltype(&IDXGISwapChain::Present) _IDXGISwapChain_Present = nullptr;
static decltype(&IDirect3DDevice9::Present) _IDirect3DDevice9_Present = nullptr;

637
overlay_experimental/linux/Linux_Detour.cpp Normal file
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@ -0,0 +1,637 @@
#include "Linux_Detour.h"
#include <algorithm>
#include <list>
#include <cstdint>
#include <unistd.h>
#include <malloc.h>
#include <sys/mman.h>
#include <errno.h>
//------------------------------------------------------------------------------//
// Helper funcs
//------------------------------------------------------------------------------//
constexpr static auto relative_jump_size = 5;
constexpr static auto relative_addr_jump_size = sizeof(int32_t);
constexpr static auto absolute_jump_size = 6;
struct
{
bool has_r_m;
uint8_t base_size;
} s_opcodes[256] =
{
{false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, // 0 - 7
{false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, // 8 - 15
{false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, // 16 - 23
{false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, // 24 - 31
{false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, // 32 - 39
{false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, // 40 - 47
{false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, // 48 - 55
{false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, // 56 - 63
{false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, // 64 - 71
{false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, // 72 - 79
// PUSH ...
{false, 1}, {false, 1}, {false, 1}, {false, 1}, {false, 1}, {false, 1}, {false, 1}, {false, 1}, // 80 - 87
// POP ...
{false, 1}, {false, 1}, {false, 1}, {false, 1}, {false, 1}, {false, 1}, {false, 1}, {false, 1}, // 88 - 95
{false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, // 96 - 103
{false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, // 104 - 111
{false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, // 112 - 129
{false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, // 120 - 127
// MOV, ADD, ... R8 <- IMM8 TEST_8 TEST XCHG_8 XCHG
{true , 3}, {true , 6}, {true , 3}, {true , 3}, {true , 2}, {true , 2}, {true , 2}, {true , 2}, // 128 - 135
// MOV_8 MOV MOV_R8_B MOV_R32_D MOV_32_ES LEA MOV_ES_32 POP
{true , 2}, {true , 2}, {true , 2}, {true , 2}, {true , 2}, {true , 2}, {true , 2}, {false, 2}, // 136 - 143
// NOP
{false, 1}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, // 144 - 151
{false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, // 152 - 159
{false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, // 160 - 167
{false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, // 168 - 175
// MOV_AL MOV_CL MOV_DL MOV_BL MOV_AH MOV_CH MOV_DH MOV_BH
{false, 2}, {false, 2}, {false, 2}, {false, 2}, {false, 2}, {false, 2}, {false, 2}, {false, 2}, // 176 - 183
// MOV_EAX MOV_ECX MOV_EDX MOV_EBX MOV_ESP MOV_EBP MOV_ESI MOV_EDI,
{false, 5}, {false, 5}, {false, 5}, {false, 5}, {false, 5}, {false, 5}, {false, 5}, {false, 5}, // 184 - 191
// RETN_IMM16 RETN
{false, 0}, {false, 0}, {false, 3}, {false, 1}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, // 192 - 199
// LEAVE RETF_IMM16 RETF INT INT_IMM8 INTO
{false, 0}, {false, 1}, {false, 3}, {false, 1}, {false, 1}, {false, 1}, {false, 1}, {false, 0}, // 200 - 207
{false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, // 208 - 215
{false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, // 216 - 223
{false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, // 224 - 231
// CALL JMP LJMP SHORT_JMP
{false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, // 232 - 239
{false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, // 240 - 247
// EXTENDED
{false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 0}, {false, 6}, // 248 - 255
};
static constexpr auto mod_mask = 0xC0;
static constexpr auto register_addressing_mode = 0xC0;
static constexpr auto four_bytes_signed_displacement = 0x80;
static constexpr auto one_byte_signed_displacement = 0x40;
static constexpr auto rm_mask = 0x05;
static constexpr auto displacement_only_addressing = 0x05;
static constexpr auto sib_with_no_displacement = 0x04;
static constexpr auto register_indirect_addressing_mode = 0x00;
enum opcodes_e // Commonly used opcode in the beginning of functions
{
PUSH_EAX = 0x50, PUSH_ECX, PUSH_EDX, PUSH_EBX, PUSH_ESP, PUSH_EBP, PUSH_ESI, PUSH_EDI,
POP_EAX , POP_ECX , POP_EDX , POP_EBX , POP_ESP , POP_EBP , POP_ESI , POP_EDI ,
R8_IMM8 = 0x80, R32_IMM32, R8_IMM8_2, R32_IMM8,
TEST_8, TEST,
XCHG_8, XCHG,
MOV_8 , MOV,
MOV_8_B, MOV_32_D, MOV_32_ES,
LEA,
MOV_ES_32, POP,
NOP,
MOV_AL = 0xB0, MOV_CL, MOV_DL, MOV_BL, MOV_AH, MOV_CH, MOV_DH, MOV_BH,
MOV_EAX, MOV_ECX, MOV_EDX, MOV_EBX, MOV_ESP, MOV_EBP, MOV_ESI, MOV_EDI,
RETN_IMM16 = 0xC2, RETN,
LEAVE = 0xC9, RETF_IMM16, RETF, INT, INT_IMM8, INTO,
CALL = 0xE8, // 5 bytes don't process
JMP, // 5 bytes don't process
LJMP, // 7 bytes, don't process
SHORT_JMP, // 2 bytes don't process
EXTENDED = 0xFF,
};
const char* opcode_name(uint8_t opcode)
{
#define NAME(opcode_name) case opcode_name: return #opcode_name
switch( opcode )
{
NAME(PUSH_EAX); NAME(PUSH_ECX); NAME(PUSH_EDX); NAME(PUSH_EBX);
NAME(PUSH_ESP); NAME(PUSH_EBP); NAME(PUSH_ESI); NAME(PUSH_EDI);
NAME(POP_EAX); NAME(POP_ECX); NAME(POP_EDX); NAME(POP_EBX);
NAME(POP_ESP); NAME(POP_EBP); NAME(POP_ESI); NAME(POP_EDI);
NAME(R8_IMM8); NAME(R32_IMM32); NAME(R8_IMM8_2); NAME(R32_IMM8);
NAME(TEST_8); NAME(TEST); NAME(XCHG_8); NAME(XCHG); NAME(MOV_8); NAME(MOV);
NAME(MOV_8_B); NAME(MOV_32_D); NAME(MOV_32_ES);
NAME(LEA);
NAME(MOV_ES_32); NAME(POP);
NAME(NOP);
NAME(MOV_AL) ; NAME(MOV_CL) ; NAME(MOV_DL) ; NAME(MOV_BL) ; NAME(MOV_AH) ; NAME(MOV_CH) ; NAME(MOV_DH) ; NAME(MOV_BH) ;
NAME(MOV_EAX); NAME(MOV_ECX); NAME(MOV_EDX); NAME(MOV_EBX); NAME(MOV_ESP); NAME(MOV_EBP); NAME(MOV_ESI); NAME(MOV_EDI);
NAME(RETN_IMM16); NAME(RETN); NAME(LEAVE); NAME(RETF_IMM16); NAME(RETF);
NAME(INT); NAME(INT_IMM8); NAME(INTO); NAME(CALL); NAME(JMP); NAME(LJMP); NAME(SHORT_JMP);
NAME(EXTENDED);
}
#undef NAME
return "no registered";
}
#pragma pack(push, 1)
struct trampoline_x86_t
{
uint8_t trampolineBytes[16+relative_jump_size]; // trampoline + original function opcodes
uint8_t hookJump[relative_jump_size]; // jump to hook addr, needed because of relative jump overflow
uint8_t nOriginalBytes; // number of original function bytes bkp
uint8_t originalBytes[16]; // original function bytes
};
typedef trampoline_x86_t trampoline_t;
struct trampoline_region_t
{
uint32_t header;
uint8_t numTrampolines; // current trampolines allocated
trampoline_t *trampolines_start; // start pointer of current region trampolines
trampoline_t *next_free_trampoline; // next free trampoline in region
};
#pragma pack(pop)
struct transaction_t
{
bool detach;
void** ppOriginalFunc;
trampoline_t *trampoline;
};
static std::list<trampoline_region_t> trampoline_regions;
static bool transaction_started = false;
static std::list<transaction_t> cur_transaction;
inline size_t page_size()
{
static size_t _page_size = sysconf(_SC_PAGESIZE);
return _page_size;
}
inline size_t region_size()
{
return page_size();
}
static uint8_t max_trampolines_in_region = region_size() / sizeof(trampoline_t);
inline void* library_address_by_handle(void *library)
{
return (library == nullptr ? nullptr : *reinterpret_cast<void**>(library));
}
inline size_t page_align(size_t size, size_t page_size)
{
return (size+(page_size-1)) & (((size_t)-1)^(page_size-1));
}
inline void* page_addr(void* addr, size_t page_size)
{
return reinterpret_cast<void*>(reinterpret_cast<size_t>(addr) & (((size_t)-1)^(page_size-1)));
}
////////////////////////////////////////////////////
/// Tiny disasm
bool is_opcode_terminating_function(uint8_t* pCode)
{
switch( *pCode )
{
case LEAVE:
case RETN: case RETN_IMM16:
case RETF: case RETF_IMM16:
case INT: case INT_IMM8: case INTO:
return true;
}
return false;
}
int find_space_for_trampoline(uint8_t* func, int bytes_needed)
{
if( func == nullptr )
return -1;
int code_len = -1;
bool search = true;
uint8_t *startCode = reinterpret_cast<uint8_t*>(func);
uint8_t *pCode = startCode;
while( search ) // Find opcodes size and try to find at least 5 bytes for our JMP
{
if( is_opcode_terminating_function(pCode) )
break;
if( s_opcodes[*pCode].has_r_m )
{ // MOD-REG-R/M Byte
// 7 6 5 4 3 2 1 0 - bits
//[ MOD ][ REG ][ R/M ]
switch( pCode[1] & mod_mask ) // Check MOD to know how many bytes we have after this opcode
{
case register_addressing_mode : pCode += s_opcodes[*pCode].base_size ; break;// register addressing mode [opcode] [R/M] [XX]
case four_bytes_signed_displacement: pCode += s_opcodes[*pCode].base_size+5; break;// address mode byte + 4 bytes displacement
case one_byte_signed_displacement : pCode += s_opcodes[*pCode].base_size+2; break;// address mode byte + 1 byte displacement
case 0x00:
switch( pCode[1] & rm_mask )
{
case sib_with_no_displacement : pCode += s_opcodes[*pCode].base_size+1; break;// SIB with no displacement
case displacement_only_addressing : pCode += s_opcodes[*pCode].base_size+4; break;// 4 bytes Displacement only addressing mode
case register_indirect_addressing_mode: pCode += s_opcodes[*pCode].base_size; // Register indirect addressing mode
}
}
}
else if( s_opcodes[*pCode].base_size )
{
pCode += s_opcodes[*pCode].base_size;
}
else
{
switch( *pCode )
{
case CALL: case JMP: case LJMP: case SHORT_JMP:
//std::cerr << "CALL and JMP are not supported for trampolines." << std::endl;
search = false;
break;
case EXTENDED:
//std::cerr << "IMPORT_JUMP is not handled" << std::endl;
if (pCode[1] == 0x25) // This is an imported function
{ // Get the true function call
//pCode = (uint8_t*)*(pCode+2);
//startCode = pCode;
// For now disable this case
search = false;
}
else
{
search = false;
}
break;
default:
//std::cerr << "opcode " << std::hex << (uint32_t)*pCode << " no registered" << std::endl;
search = false;
}
}
if( (pCode - startCode) >= bytes_needed && search )
{
search = false;
code_len = pCode-startCode;
}
}
return code_len;
}
///////////////////////////////////////////
// Tiny asm
inline uint8_t* gen_immediate_addr(uint8_t* opcode_addr, uint8_t* dest)
{
*reinterpret_cast<int32_t*>(opcode_addr) = (dest - (opcode_addr + relative_addr_jump_size));
return opcode_addr + relative_addr_jump_size;
}
inline uint8_t* gen_immediate_jump(uint8_t* opcode_addr, uint8_t* dest)
{
*opcode_addr++ = JMP;
return gen_immediate_addr(opcode_addr, dest);
}
inline uint8_t* gen_immediate_call(uint8_t* opcode_addr, uint8_t* dest)
{
*opcode_addr++ = CALL;
return gen_immediate_addr(opcode_addr, dest);
}
uint8_t* relative_addr_to_absolute(int32_t rel_addr, uint8_t *code_addr)
{
return code_addr + rel_addr + relative_jump_size;
}
void alloc_new_trampoline_region()
{
trampoline_region_t region;
region.numTrampolines = 0;
// allocate new trampoline right in the middle of memory so relative jump can access any function
region.trampolines_start = reinterpret_cast<trampoline_t*>(mmap((void*)std::numeric_limits<int32_t>::max(), // allocate the page near the half of memory addressing
region_size(), // size
PROT_EXEC|PROT_WRITE|PROT_READ, // protection
MAP_PRIVATE|MAP_32BIT|MAP_ANONYMOUS, // don't map a file but memory
-1, // fd = -1
0) // offset
);
// Fill the region with 0
std::fill(reinterpret_cast<uint8_t*>(region.trampolines_start), reinterpret_cast<uint8_t*>(region.trampolines_start)+region_size(), 0);
region.next_free_trampoline = region.trampolines_start;
// Protect trampoline region memory
mprotect((void*)region.trampolines_start, region_size(), PROT_READ|PROT_EXEC);
trampoline_regions.push_back(region);
}
trampoline_t* get_free_trampoline()
{
if (!transaction_started)
return nullptr;
trampoline_t *res = nullptr;
auto it = std::find_if(trampoline_regions.begin(), trampoline_regions.end(), [&res](trampoline_region_t &region){
if( region.numTrampolines == max_trampolines_in_region )
return false;
return true;
});
if( it == trampoline_regions.end() )
{
alloc_new_trampoline_region();
it = --trampoline_regions.end();
}
res = it->next_free_trampoline;
trampoline_t *next_new_trampoline = res+1;
if( it->numTrampolines != max_trampolines_in_region )
{
while( next_new_trampoline->nOriginalBytes != 0 )
{
++next_new_trampoline;
}
}
else
{
next_new_trampoline = nullptr;
}
it->next_free_trampoline = next_new_trampoline;
++it->numTrampolines;
return res;
}
void clear_trampoline(trampoline_region_t& region, trampoline_t *trampoline)
{
--region.numTrampolines;
std::fill(reinterpret_cast<uint8_t*>(trampoline), reinterpret_cast<uint8_t*>(trampoline+1), 0);
if( region.next_free_trampoline == nullptr || region.next_free_trampoline > trampoline )
region.next_free_trampoline = trampoline;
}
inline bool is_page_inside_region(void *page, trampoline_region_t& region)
{
if( page >= region.trampolines_start && page <= (region.trampolines_start+region_size()) )
return true;
return false;
}
//------------------------------------------------------------------------------//
/*
#include <signal.h>
#include <dirent.h>
static pid_t tid = 0;
struct dism_pthread_t
{
uint32_t d0;
uint32_t d4;
uint32_t d8;
uint32_t dc;
uint32_t d10;
uint32_t d14;
uint32_t d18;
uint32_t d1c;
uint32_t d20;
uint32_t d24;
uint32_t d28;
uint32_t d2c;
uint32_t d30;
uint32_t d34;
uint32_t d38;
uint32_t d3c;
uint32_t d40;
uint32_t d44;
uint32_t d48;
uint32_t d4c;
uint32_t d50;
uint32_t d54;
uint32_t d58;
uint32_t d5c;
uint32_t d60;
uint32_t d64;
pid_t task_id;
};
*/
int Linux_Detour::update_thread(pthread_t thread_id)
{
//dism_pthread_t *dt = (dism_pthread_t*)thread_id;
// dt->task_id == syscall(SYS_gettid);
return 0;
}
int Linux_Detour::transaction_begin()
{
if( transaction_started )
return -1;
transaction_started = true;
return 0;
}
int Linux_Detour::transaction_abort()
{
if(!transaction_started)
return -1;
for( auto &i : cur_transaction )
{
trampoline_t *trampoline = i.trampoline;
void *page_start = page_addr(reinterpret_cast<void*>(trampoline), page_size());
auto it = std::find_if(trampoline_regions.begin(), trampoline_regions.end(), [page_start](trampoline_region_t &region){
if( is_page_inside_region(page_start, region) )
return true;
return false;
});
if( it != trampoline_regions.end() )
{
clear_trampoline(*it, trampoline);
}
}
cur_transaction.clear();
transaction_started = false;
return 0;
}
int Linux_Detour::transaction_commit()
{
if (!transaction_started )
return -1;
for( auto &i : cur_transaction)
{
trampoline_t *trampoline = i.trampoline;
void **ppOriginalFunc = i.ppOriginalFunc;
int res;
if( i.detach )
{
void* trampoline_page = page_addr(reinterpret_cast<void*>(trampoline), page_size());
*ppOriginalFunc = (void*)(relative_addr_to_absolute(*reinterpret_cast<int32_t*>(trampoline->trampolineBytes+trampoline->nOriginalBytes+1),
trampoline->trampolineBytes));
void* originalFunctionPage = page_addr(*ppOriginalFunc, page_size());
// Allow write on the original func
res = mprotect(originalFunctionPage, page_size()*2, PROT_READ|PROT_WRITE|PROT_EXEC);
// Write the original opcodes
std::copy(trampoline->originalBytes, trampoline->originalBytes+trampoline->nOriginalBytes,
reinterpret_cast<uint8_t*>(*ppOriginalFunc));
// Remove write permission
res = mprotect(originalFunctionPage, page_size()*2, PROT_READ|PROT_EXEC);
// Allow write on trampoline page
res = mprotect(trampoline_page, page_size()*2, PROT_READ|PROT_WRITE|PROT_EXEC);
clear_trampoline(*reinterpret_cast<trampoline_region_t*>(trampoline_page), trampoline);
// Remove write permission
res = mprotect(trampoline_page, page_size()*2, PROT_READ|PROT_EXEC);
}
else
{
void* originalFunctionPage = page_addr(*ppOriginalFunc, page_size());
// Allow write on the original func
res = mprotect(originalFunctionPage, page_size()*2, PROT_READ|PROT_WRITE|PROT_EXEC);
// Write the jump to trampoline
gen_immediate_jump(reinterpret_cast<uint8_t*>(*ppOriginalFunc), trampoline->hookJump);
// Remove write permission
res = mprotect(originalFunctionPage, page_size()*2, PROT_READ|PROT_EXEC);
*ppOriginalFunc = (void*)(trampoline->trampolineBytes);
}
}
cur_transaction.clear();
transaction_started = false;
return 0;
}
int Linux_Detour::unhook_func(void** ppOriginalFunc, void* _hook)
{
if( !transaction_started )
return -EPERM;
if( ppOriginalFunc == nullptr || _hook == nullptr || *ppOriginalFunc == nullptr )
return -EINVAL;
trampoline_t *trampoline = reinterpret_cast<trampoline_t*>(*ppOriginalFunc);
void *page_start = page_addr(reinterpret_cast<void*>(trampoline), page_size());
auto it = std::find_if(trampoline_regions.begin(), trampoline_regions.end(), [page_start](trampoline_region_t &region){
if( is_page_inside_region(page_start, region) )
return true;
return false;
});
if( it != trampoline_regions.end() )
{
cur_transaction.push_back({true, ppOriginalFunc, trampoline});
}
return -EINVAL;
}
int Linux_Detour::hook_func(void** ppOriginalFunc, void* _hook)
{
if( !transaction_started )
return -EPERM;
if( ppOriginalFunc == nullptr || _hook == nullptr || *ppOriginalFunc == nullptr )
return -EINVAL;
uint8_t* hook = reinterpret_cast<uint8_t*>(_hook);
uint8_t* pOriginalFunc = reinterpret_cast<uint8_t*>(*ppOriginalFunc);
int code_len = find_space_for_trampoline(pOriginalFunc, relative_jump_size);
if( code_len < relative_jump_size )
return -ENOSPC;
// Allocate the trampoline, try to put it right in the middle of the mem, so a relative jump can access any function in the app (+/-2GB)
//
// Our hook is a 5 bytes JMP (1 bytes for opcode, 4 for RELATIVE jump)
// /!\ TODO: Add checks on JMP overflow
trampoline_t *trampoline = get_free_trampoline();
uint8_t *pTrampolineCode = trampoline->trampolineBytes;
void* trampoline_page = page_addr(reinterpret_cast<void*>(trampoline), page_size());
// Enable write to the trampoline region
mprotect(trampoline_page, page_size()*2, PROT_READ|PROT_WRITE|PROT_EXEC);
// Create relative jmp to hook
gen_immediate_jump(trampoline->hookJump, hook);
// Copy original opcodes
trampoline->nOriginalBytes = code_len;
std::copy((uint8_t*)pOriginalFunc, ((uint8_t*)pOriginalFunc)+code_len, trampoline->originalBytes);
std::copy((uint8_t*)pOriginalFunc, ((uint8_t*)pOriginalFunc)+code_len, pTrampolineCode);
pTrampolineCode += code_len;
// Create the relative jmp to original (function + backed up opcodes)
pTrampolineCode = gen_immediate_jump(pTrampolineCode, pOriginalFunc+code_len);
pTrampolineCode += relative_addr_jump_size;
// Disable trampoline region write
mprotect(trampoline_page, page_size()*2, PROT_READ|PROT_EXEC);
cur_transaction.push_back({false, ppOriginalFunc, trampoline});
return 0;
}
/* ------ DOCUMENTATION ------
http://www.c-jump.com/CIS77/CPU/x86/lecture.html <- some help to understand [MOD][REG][R/M] (see paragraph #6)
http://shell-storm.org/online/Online-Assembler-and-Disassembler <- online assembler
http://ref.x86asm.net/coder32.html <- opcodes reference
X86
push ebx : 0x53
sub esp ?? : 0x83 0xEC 0x??
call ????????: 0xE8 0x?? 0x?? 0x?? 0x??
// relative jmp: ???????? = dst_addr - curr_addr - 5
jmp ???????? : 0xe9 0x?? 0x?? 0x?? 0x??
destination = 0x8dba8
jmp location: 0x91995 - opcodes: e9 0e c2 ff ff
0e c2 ff ff = 0x8dba8 - 0x91995 - 5
// short jmp: ?? = dst_addr - curr_addr - 2
jmp short ??: 0xeb 0x??
destination = 0x91964
jmp location: 0x9198f - opcodes: 0xeb 0xd3
d3 = 0x91964 - 0x9198f - 2
X64
TODO:
Hint: make relative jump to near (+/-2Gb) code : 5 bytes
load absolute addr into R11 and call a jmp on register R11 : 13 bytes
Or
Reuse x86 relative jmp method
Example:
mov r11, 0x0123456789abcdef -> 0x49 0xbb 0xef 0xcd 0xab 0x89 0x67 0x45 0x23 0x01
jmp r11 -> 0x41 0xff 0xe3
*/

32
overlay_experimental/linux/Linux_Detour.h Normal file
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#ifndef LINUX_DETOUR_H
#define LINUX_DETOUR_H
#include <sys/syscall.h>
#include <unistd.h>
#include <pthread.h>
#include <thread>
class Linux_Detour
{
public:
static int update_thread(pthread_t thread_id);
static int transaction_begin();
static int transaction_abort();
static int transaction_commit();
static int hook_func(void** ppOriginalFunc, void* _hook);
static int unhook_func(void** ppOriginalFunc, void* _hook);
private:
static int hook_func_abs(void** ppOriginalFunc, void* _hook);
static int hook_func_rel(void** ppOriginalFunc, void* _hook);
Linux_Detour() = delete;
Linux_Detour(Linux_Detour const&) = delete;
Linux_Detour(Linux_Detour &&) = delete;
Linux_Detour& operator=(Linux_Detour const&) = delete;
Linux_Detour& operator=(Linux_Detour &&) = delete;
};
extern "C" void *elf_hook(char const *library_filename, void const *library_address, char const *function_name, void const *substitution_address);
#endif // LINUX_DETOUR_H

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#include "OpenGLX_Hook.h"
#include "X11_Hook.h"
#include "../Renderer_Detector.h"
#include "../dll/dll.h"
#ifdef __LINUX__
#ifndef NO_OVERLAY
#include <imgui.h>
#include <impls/imgui_impl_opengl3.h>
#include "../steam_overlay.h"
OpenGLX_Hook* OpenGLX_Hook::_inst = nullptr;
bool OpenGLX_Hook::start_hook()
{
bool res = true;
if (!hooked)
{
if (!X11_Hook::Inst()->start_hook())
return false;
GLenum err = glewInit();
if (err == GLEW_OK)
{
PRINT_DEBUG("Hooked OpenGLX\n");
hooked = true;
Renderer_Detector::Inst().renderer_found(this);
UnhookAll();
BeginHook();
HookFuncs(
std::make_pair<void**, void*>(&(void*&)_glXSwapBuffers, (void*)&OpenGLX_Hook::MyglXSwapBuffers)
);
EndHook();
get_steam_client()->steam_overlay->HookReady();
}
else
{
PRINT_DEBUG("Failed to hook OpenGLX\n");
/* Problem: glewInit failed, something is seriously wrong. */
PRINT_DEBUG("Error: %s\n", glewGetErrorString(err));
res = false;
}
}
return true;
}
void OpenGLX_Hook::resetRenderState()
{
if (initialized)
{
ImGui_ImplOpenGL3_Shutdown();
//X11_Hook::Inst()->resetRenderState();
ImGui::DestroyContext();
initialized = false;
}
}
// Try to make this function and overlay's proc as short as possible or it might affect game's fps.
void OpenGLX_Hook::prepareForOverlay(Display* display)
{
PRINT_DEBUG("Called SwapBuffer hook");
if( ! initialized )
{
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO();
io.IniFilename = NULL;
ImGui_ImplOpenGL3_Init();
initialized = true;
}
if( initialized )
{
ImGuiIO& io = ImGui::GetIO();
GLint m_viewport[4];
glGetIntegerv( GL_VIEWPORT, m_viewport );
int width = m_viewport[2];
int height = m_viewport[3];
ImGui_ImplOpenGL3_NewFrame();
X11_Hook::Inst()->prepareForOverlay(display);
ImGui::NewFrame();
get_steam_client()->steam_overlay->OverlayProc(width, height);
ImGui::EndFrame();
ImGui::Render();
ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
}
}
void OpenGLX_Hook::MyglXSwapBuffers(Display* display, GLXDrawable drawable)
{
OpenGLX_Hook::Inst()->prepareForOverlay(display);
OpenGLX_Hook::Inst()->_glXSwapBuffers(display, drawable);
}
OpenGLX_Hook::OpenGLX_Hook():
initialized(false),
hooked(false),
_glXSwapBuffers(nullptr)
{
//_library = dlopen(DLL_NAME);
}
OpenGLX_Hook::~OpenGLX_Hook()
{
PRINT_DEBUG("OpenGLX Hook removed\n");
if (initialized)
{
ImGui_ImplOpenGL3_Shutdown();
ImGui::DestroyContext();
}
//dlclose(_library);
_inst = nullptr;
}
OpenGLX_Hook* OpenGLX_Hook::Inst()
{
if (_inst == nullptr)
_inst = new OpenGLX_Hook;
return _inst;
}
const char* OpenGLX_Hook::get_lib_name() const
{
return DLL_NAME;
}
void OpenGLX_Hook::loadFunctions(decltype(glXSwapBuffers)* pfnglXSwapBuffers)
{
_glXSwapBuffers = pfnglXSwapBuffers;
}
#endif//NO_OVERLAY
#endif//__LINUX__

45
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@ -0,0 +1,45 @@
#ifndef __INCLUDED_OPENGLX_HOOK_H__
#define __INCLUDED_OPENGLX_HOOK_H__
#include "../Base_Hook.h"
#ifdef __LINUX__
#ifndef NO_OVERLAY
#include <GL/glew.h>
#include <GL/glx.h>
class OpenGLX_Hook : public Base_Hook
{
public:
static constexpr const char *DLL_NAME = "libGLX.so";
private:
static OpenGLX_Hook* _inst;
// Variables
bool hooked;
bool initialized;
// Functions
OpenGLX_Hook();
void resetRenderState();
void prepareForOverlay(Display* display);
// Hook to render functions
static void MyglXSwapBuffers(Display* display, GLXDrawable drawable);
decltype(glXSwapBuffers)* _glXSwapBuffers;
public:
virtual ~OpenGLX_Hook();
bool start_hook();
static OpenGLX_Hook* Inst();
virtual const char* get_lib_name() const;
void loadFunctions(decltype(glXSwapBuffers)* pfnglXSwapBuffers);
};
#endif//NO_OVERLAY
#endif//__LINUX__
#endif//__INCLUDED_OPENGLX_HOOK_H__

216
overlay_experimental/linux/X11_Hook.cpp Normal file
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@ -0,0 +1,216 @@
#include "X11_Hook.h"
#include "../Renderer_Detector.h"
#include "../dll/dll.h"
#ifdef __LINUX__
#ifndef NO_OVERLAY
#include <imgui.h>
#include <impls/linux/imgui_impl_x11.h>
#include <dlfcn.h>
#include <unistd.h>
#include <fstream>
extern int ImGui_ImplX11_EventHandler(XEvent &event);
X11_Hook* X11_Hook::_inst = nullptr;
bool X11_Hook::start_hook()
{
bool res = true;
if (!hooked)
{
res = false;
std::ifstream flibrary("/proc/self/maps");
std::string line;
while( std::getline(flibrary, line) )
{
if( strcasestr(line.c_str(), DLL_NAME) != nullptr )
{
_library = dlopen(line.substr(line.find('/')).c_str(), RTLD_NOW);
if( _library != nullptr )
{
// Hook only this
_XEventsQueued = (decltype(_XEventsQueued))dlsym(_library, "XEventsQueued");
// Thoses are needed to ignore some events when overlay is on
_XPeekEvent = (decltype(_XPeekEvent))dlsym(_library, "XPeekEvent");
_XNextEvent = (decltype(_XNextEvent))dlsym(_library, "XNextEvent");
_XKeysymToKeycode = (decltype(_XKeysymToKeycode))dlsym(_library, "XKeysymToKeycode");
_XLookupKeysym = (decltype(_XLookupKeysym))dlsym(_library, "XLookupKeysym");
if( _XEventsQueued != nullptr && _XPeekEvent != nullptr
&& _XNextEvent != nullptr && _XKeysymToKeycode != nullptr
&& _XLookupKeysym != nullptr )
{
PRINT_DEBUG("Hooked X11\n");
hooked = true;
BeginHook();
HookFuncs(
std::make_pair<void**, void*>(&(void*&)_XEventsQueued, (void*)&X11_Hook::MyXEventsQueued)
);
EndHook();
break;
}
dlclose(_library);
}
}
}
}
return res;
}
void X11_Hook::resetRenderState()
{
if (initialized)
{
initialized = false;
ImGui_ImplX11_Shutdown();
}
}
void X11_Hook::prepareForOverlay(Display *display)
{
if (!initialized)
{
ImGui_ImplX11_Init(display);
ImGuiIO &io = ImGui::GetIO();
io.KeyMap[ImGuiKey_Tab] = _XKeysymToKeycode(display, XK_Tab);
io.KeyMap[ImGuiKey_LeftArrow] = _XKeysymToKeycode(display, XK_Left);
io.KeyMap[ImGuiKey_RightArrow] = _XKeysymToKeycode(display, XK_Right);
io.KeyMap[ImGuiKey_UpArrow] = _XKeysymToKeycode(display, XK_Up);
io.KeyMap[ImGuiKey_DownArrow] = _XKeysymToKeycode(display, XK_Down);
io.KeyMap[ImGuiKey_PageUp] = _XKeysymToKeycode(display, XK_Prior);
io.KeyMap[ImGuiKey_PageDown] = _XKeysymToKeycode(display, XK_Next);
io.KeyMap[ImGuiKey_Home] = _XKeysymToKeycode(display, XK_Home);
io.KeyMap[ImGuiKey_End] = _XKeysymToKeycode(display, XK_End);
io.KeyMap[ImGuiKey_Insert] = _XKeysymToKeycode(display, XK_Insert);
io.KeyMap[ImGuiKey_Delete] = _XKeysymToKeycode(display, XK_Delete);
io.KeyMap[ImGuiKey_Backspace] = _XKeysymToKeycode(display, XK_BackSpace);
io.KeyMap[ImGuiKey_Space] = _XKeysymToKeycode(display, XK_space);
io.KeyMap[ImGuiKey_Enter] = _XKeysymToKeycode(display, XK_Return);
io.KeyMap[ImGuiKey_Escape] = _XKeysymToKeycode(display, XK_Escape);
io.KeyMap[ImGuiKey_A] = _XKeysymToKeycode(display, XK_A);
io.KeyMap[ImGuiKey_C] = _XKeysymToKeycode(display, XK_C);
io.KeyMap[ImGuiKey_V] = _XKeysymToKeycode(display, XK_V);
io.KeyMap[ImGuiKey_X] = _XKeysymToKeycode(display, XK_X);
io.KeyMap[ImGuiKey_Y] = _XKeysymToKeycode(display, XK_Y);
io.KeyMap[ImGuiKey_Z] = _XKeysymToKeycode(display, XK_Z);
initialized = true;
}
ImGui_ImplX11_NewFrame();
}
/////////////////////////////////////////////////////////////////////////////////////
// X11 window hooks
bool IgnoreEvent(XEvent &event)
{
switch(event.type)
{
// Keyboard
case KeyPress: case KeyRelease:
// MouseButton
case ButtonPress: case ButtonRelease:
// Mouse move
case MotionNotify:
return true;
}
return false;
}
int X11_Hook::MyXEventsQueued(Display *display, int mode)
{
static Time prev_time = {};
X11_Hook* inst = X11_Hook::Inst();
XEvent event = {};
int res = inst->_XEventsQueued(display, mode);
if( res > 0 )
{
/// The XPeekEvent function returns the first event from the event queue,
/// but it does not remove the event from the queue. If the queue is
/// empty, XPeekEvent flushes the output buffer and blocks until an event
/// is received.
inst->_XPeekEvent(display, &event);
Steam_Overlay* overlay = get_steam_client()->steam_overlay;
bool show = overlay->ShowOverlay();
// Is the event is a key press
if (event.type == KeyPress)
{
// Tab is pressed and was not pressed before
if (event.xkey.keycode == inst->_XKeysymToKeycode(display, XK_Tab) && event.xkey.state & ShiftMask)
{
// if key TAB is help, don't make the overlay flicker :p
if( event.xkey.time != prev_time)
{
overlay->ShowOverlay(!overlay->ShowOverlay());
if (overlay->ShowOverlay())
show = true;
}
}
}
else if(event.type == KeyRelease && event.xkey.keycode == inst->_XKeysymToKeycode(display, XK_Tab))
{
prev_time = event.xkey.time;
}
if (show)
{
ImGui_ImplX11_EventHandler(event);
if (IgnoreEvent(event))
{
inst->_XNextEvent(display, &event);
res = 0;
}
}
}
// XEventsQueued returns the num of events available.
// Usually, games tend to read all events queued before calling again XEventsQueued
// making us unavailable to intercept undesired events
return res;
}
/////////////////////////////////////////////////////////////////////////////////////
X11_Hook::X11_Hook() :
initialized(false),
hooked(false)
{
//_library = dlopen(DLL_NAME, RTLD_NOW);
}
X11_Hook::~X11_Hook()
{
PRINT_DEBUG("X11 Hook removed\n");
resetRenderState();
//dlclose(_library);
_inst = nullptr;
}
X11_Hook* X11_Hook::Inst()
{
if (_inst == nullptr)
_inst = new X11_Hook;
return _inst;
}
const char* X11_Hook::get_lib_name() const
{
return DLL_NAME;
}
#endif//NO_OVERLAY
#endif//#__LINUX__

50
overlay_experimental/linux/X11_Hook.h Normal file
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@ -0,0 +1,50 @@
#ifndef __INCLUDED_X11_HOOK_H__
#define __INCLUDED_X11_HOOK_H__
#include "../Base_Hook.h"
#ifdef __LINUX__
#ifndef NO_OVERLAY
#include <X11/X.h> // XEvent types
#include <X11/Xlib.h> // XEvent structure
class X11_Hook : public Base_Hook
{
public:
static constexpr const char* DLL_NAME = "libX11.so";
private:
static X11_Hook* _inst;
// Variables
bool hooked;
bool initialized;
// Functions
X11_Hook();
// Hook to X11 window messages
static int MyXEventsQueued(Display * display, int mode);
decltype(XEventsQueued)* _XEventsQueued;
decltype(XPeekEvent)* _XPeekEvent;
decltype(XNextEvent)* _XNextEvent;
decltype(XKeysymToKeycode)* _XKeysymToKeycode;
decltype(XLookupKeysym)* _XLookupKeysym;
public:
virtual ~X11_Hook();
void resetRenderState();
void prepareForOverlay(Display *display);
bool start_hook();
static X11_Hook* Inst();
virtual const char* get_lib_name() const;
};
#endif//NO_OVERLAY
#endif//__LINUX__
#endif//__INCLUDED_X11_HOOK_H__

6
overlay_experimental/windows/DX10_Hook.cpp
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@ -1,12 +1,12 @@
#include "DX10_Hook.h"
#include "Windows_Hook.h"
#include "Renderer_Detector.h"
#include "../dll/dll.h"
#include "../Renderer_Detector.h"
#include "../../dll/dll.h"
#ifndef NO_OVERLAY
#include <imgui.h>
#include <impls/imgui_impl_dx10.h>
#include <impls/windows/imgui_impl_dx10.h>
DX10_Hook* DX10_Hook::_inst = nullptr;

6
overlay_experimental/windows/DX10_Hook.h
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@ -1,7 +1,7 @@
#ifndef __INCLUDED_DX10_HOOK_H__
#define __INCLUDED_DX10_HOOK_H__
#include "Base_Hook.h"
#include "../Base_Hook.h"
#ifndef NO_OVERLAY
#include <d3d10.h>
@ -42,10 +42,10 @@ public:
bool start_hook();
static DX10_Hook* Inst();
virtual const char* get_lib_name() const;
void loadFunctions(IDXGISwapChain *pSwapChain);
};
#endif//NO_OVERLAY
#endif//__INCLUDED_DX10_HOOK_H__
#endif//__INCLUDED_DX10_HOOK_H__

6
overlay_experimental/windows/DX11_Hook.cpp
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@ -1,12 +1,12 @@
#include "DX11_Hook.h"
#include "Windows_Hook.h"
#include "Renderer_Detector.h"
#include "../dll/dll.h"
#include "../Renderer_Detector.h"
#include "../../dll/dll.h"
#ifndef NO_OVERLAY
#include <imgui.h>
#include <impls/imgui_impl_dx11.h>
#include <impls/windows/imgui_impl_dx11.h>
DX11_Hook* DX11_Hook::_inst = nullptr;

8
overlay_experimental/windows/DX11_Hook.h
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@ -1,7 +1,7 @@
#ifndef __INCLUDED_DX11_HOOK_H__
#define __INCLUDED_DX11_HOOK_H__
#include "Base_Hook.h"
#include "../Base_Hook.h"
#ifndef NO_OVERLAY
#include <d3d11.h>
@ -19,7 +19,7 @@ private:
bool hooked;
bool initialized;
ID3D11DeviceContext* pContext;
ID3D11RenderTargetView* mainRenderTargetView;
ID3D11RenderTargetView* mainRenderTargetView;
// Functions
DX11_Hook();
@ -42,10 +42,10 @@ public:
bool start_hook();
static DX11_Hook* Inst();
virtual const char* get_lib_name() const;
void loadFunctions(IDXGISwapChain *pSwapChain);
};
#endif//NO_OVERLAY
#endif//__INCLUDED_DX11_HOOK_H__
#endif//__INCLUDED_DX11_HOOK_H__

6
overlay_experimental/windows/DX12_Hook.cpp
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@ -1,12 +1,12 @@
#include "DX12_Hook.h"
#include "Windows_Hook.h"
#include "Renderer_Detector.h"
#include "../dll/dll.h"
#include "../Renderer_Detector.h"
#include "../../dll/dll.h"
#ifndef NO_OVERLAY
#include <imgui.h>
#include <impls/imgui_impl_dx12.h>
#include <impls/windows/imgui_impl_dx12.h>
#include <dxgi1_4.h>

6
overlay_experimental/windows/DX12_Hook.h
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@ -1,7 +1,7 @@
#ifndef __INCLUDED_DX12_HOOK_H__
#define __INCLUDED_DX12_HOOK_H__
#include "Base_Hook.h"
#include "../Base_Hook.h"
#ifndef NO_OVERLAY
#include <d3d12.h>
@ -48,9 +48,9 @@ public:
bool start_hook();
static DX12_Hook* Inst();
virtual const char* get_lib_name() const;
void loadFunctions(ID3D12CommandQueue* pCommandQueue, ID3D12GraphicsCommandList* pCommandList, IDXGISwapChain* pSwapChain);
};
#endif//NO_OVERLAY
#endif//__INCLUDED_DX12_HOOK_H__
#endif//__INCLUDED_DX12_HOOK_H__

8
overlay_experimental/windows/DX9_Hook.cpp
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@ -1,14 +1,12 @@
#include "DX9_Hook.h"
#include "Windows_Hook.h"
#include "Renderer_Detector.h"
#include "../dll/dll.h"
#include "../Renderer_Detector.h"
#include "../../dll/dll.h"
#ifndef NO_OVERLAY
#include <imgui.h>
#include <impls/imgui_impl_dx9.h>
#include "steam_overlay.h"
#include <impls/windows/imgui_impl_dx9.h>
DX9_Hook* DX9_Hook::_inst = nullptr;

6
overlay_experimental/windows/DX9_Hook.h
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@ -1,7 +1,7 @@
#ifndef __INCLUDED_DX9_HOOK_H__
#define __INCLUDED_DX9_HOOK_H__
#include "Base_Hook.h"
#include "../Base_Hook.h"
#ifndef NO_OVERLAY
#include <d3d9.h>
@ -43,10 +43,10 @@ public:
bool start_hook();
static DX9_Hook* Inst();
virtual const char* get_lib_name() const;
void loadFunctions(IDirect3DDevice9 *pDevice, bool ex);
};
#endif//NO_OVERLAY
#endif//__INCLUDED_DX9_HOOK_H__
#endif//__INCLUDED_DX9_HOOK_H__

6
overlay_experimental/windows/OpenGL_Hook.cpp
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@ -1,7 +1,7 @@
#include "OpenGL_Hook.h"
#include "Windows_Hook.h"
#include "Renderer_Detector.h"
#include "../dll/dll.h"
#include "../Renderer_Detector.h"
#include "../../dll/dll.h"
#ifndef NO_OVERLAY
@ -10,7 +10,7 @@
#include <GL/glew.h>
#include "steam_overlay.h"
#include "../steam_overlay.h"
OpenGL_Hook* OpenGL_Hook::_inst = nullptr;

6
overlay_experimental/windows/OpenGL_Hook.h
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@ -1,14 +1,14 @@
#ifndef __INCLUDED_OPENGL_HOOK_H__
#define __INCLUDED_OPENGL_HOOK_H__
#include "Base_Hook.h"
#include "../Base_Hook.h"
#ifndef NO_OVERLAY
class OpenGL_Hook : public Base_Hook
{
public:
static constexpr const char *DLL_NAME = "opengl32.dll";
using wglSwapBuffers_t = BOOL(WINAPI*)(HDC);
private:
@ -39,4 +39,4 @@ public:
};
#endif//NO_OVERLAY
#endif//__INCLUDED_OPENGL_HOOK_H__
#endif//__INCLUDED_OPENGL_HOOK_H__

6
overlay_experimental/windows/Windows_Hook.cpp
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@ -1,11 +1,11 @@
#include "Windows_Hook.h"
#include "Renderer_Detector.h"
#include "../dll/dll.h"
#include "../Renderer_Detector.h"
#include "../../dll/dll.h"
#ifndef NO_OVERLAY
#include <imgui.h>
#include <impls/imgui_impl_win32.h>
#include <impls/windows/imgui_impl_win32.h>
extern LRESULT ImGui_ImplWin32_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);