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improve hook 3/4 performance

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This commit is contained in:
FunkyFr3sh 2020-10-19 16:37:12 +02:00
parent 7d0e3e8da5
commit b690cb5c24
2 changed files with 155 additions and 79 deletions
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7
inc/hook.h
View File

@ -5,6 +5,9 @@
#include <windows.h>
typedef struct hook_list_data { char function_name[32]; PROC new_function; PROC* function; } hook_list_data;
typedef struct hook_list { char module_name[32]; BOOL enabled; struct hook_list_data data[32]; } hook_list;
typedef BOOL (WINAPI* GETCURSORPOSPROC)(LPPOINT);
typedef BOOL(WINAPI* CLIPCURSORPROC)(const RECT*);
typedef int (WINAPI* SHOWCURSORPROC)(BOOL);
@ -63,7 +66,7 @@ extern BOOL g_hook_active;
void hook_init();
void hook_exit();
void hook_patch_iat(HMODULE hMod, char *moduleName, char *functionName, PROC newFunction);
void hook_create(char *moduleName, char *functionName, PROC newFunction, PROC *function);
void hook_revert(char *moduleName, char *functionName, PROC newFunction, PROC *function);
void hook_create(struct hook_list* hooks);
void hook_revert(struct hook_list* hooks);
#endif

227
src/hook.c
View File

@ -39,6 +39,62 @@ LOADLIBRARYWPROC real_LoadLibraryW = LoadLibraryW;
LOADLIBRARYEXAPROC real_LoadLibraryExA = LoadLibraryExA;
LOADLIBRARYEXWPROC real_LoadLibraryExW = LoadLibraryExW;
static hook_list g_hooks[] =
{
{
"user32.dll",
TRUE,
{
{ "GetCursorPos", (PROC)fake_GetCursorPos, (PROC*)&real_GetCursorPos },
{ "ClipCursor", (PROC)fake_ClipCursor, (PROC*)&real_ClipCursor },
{ "ShowCursor", (PROC)fake_ShowCursor, (PROC*)&real_ShowCursor },
{ "SetCursor", (PROC)fake_SetCursor, (PROC*)&real_SetCursor },
{ "GetWindowRect", (PROC)fake_GetWindowRect, (PROC*)&real_GetWindowRect },
{ "GetClientRect", (PROC)fake_GetClientRect, (PROC*)&real_GetClientRect },
{ "ClientToScreen", (PROC)fake_ClientToScreen, (PROC*)&real_ClientToScreen },
{ "ScreenToClient", (PROC)fake_ScreenToClient, (PROC*)&real_ScreenToClient },
{ "SetCursorPos", (PROC)fake_SetCursorPos, (PROC*)&real_SetCursorPos },
{ "GetClipCursor", (PROC)fake_GetClipCursor, (PROC*)&real_GetClipCursor },
{ "WindowFromPoint", (PROC)fake_WindowFromPoint, (PROC*)&real_WindowFromPoint },
{ "GetCursorInfo", (PROC)fake_GetCursorInfo, (PROC*)&real_GetCursorInfo },
{ "GetSystemMetrics", (PROC)fake_GetSystemMetrics, (PROC*)&real_GetSystemMetrics },
{ "SetWindowPos", (PROC)fake_SetWindowPos, (PROC*)&real_SetWindowPos },
{ "MoveWindow", (PROC)fake_MoveWindow, (PROC*)&real_MoveWindow },
{ "SendMessageA", (PROC)fake_SendMessageA, (PROC*)&real_SendMessageA },
{ "SetWindowLongA", (PROC)fake_SetWindowLongA, (PROC*)&real_SetWindowLongA },
{ "EnableWindow", (PROC)fake_EnableWindow, (PROC*)&real_EnableWindow },
{ "CreateWindowExA", (PROC)fake_CreateWindowExA, (PROC*)&real_CreateWindowExA },
{ "DestroyWindow", (PROC)fake_DestroyWindow, (PROC*)&real_DestroyWindow },
{ "", NULL }
}
},
{
"gdi32.dll",
TRUE,
{
{ "GetDeviceCaps", (PROC)fake_GetDeviceCaps, (PROC*)&real_GetDeviceCaps },
{ "", NULL }
}
},
{
"kernel32.dll",
FALSE,
{
{ "LoadLibraryA", (PROC)fake_LoadLibraryA, (PROC*)&real_LoadLibraryA },
{ "LoadLibraryW", (PROC)fake_LoadLibraryW, (PROC*)&real_LoadLibraryW },
{ "LoadLibraryExA", (PROC)fake_LoadLibraryExA, (PROC*)&real_LoadLibraryExA },
{ "LoadLibraryExW", (PROC)fake_LoadLibraryExW, (PROC*)&real_LoadLibraryExW },
{ "", NULL }
}
},
{
"",
FALSE,
{
{ "", NULL }
}
}
};
void hook_patch_iat(HMODULE hmod, char *module_name, char *function_name, PROC new_function)
{
@ -109,15 +165,24 @@ void hook_patch_iat(HMODULE hmod, char *module_name, char *function_name, PROC n
#endif
}
void hook_create(char *module_name, char *function_name, PROC new_function, PROC *function)
void hook_create(hook_list* hooks)
{
#ifdef _MSC_VER
if (g_hook_method == 2)
{
DetourTransactionBegin();
DetourUpdateThread(GetCurrentThread());
DetourAttach((PVOID *)function, (PVOID)new_function);
DetourTransactionCommit();
for (int i = 0; hooks[i].module_name[0]; i++)
{
if (!hooks[i].enabled)
continue;
for (int x = 0; hooks[i].data[x].function_name[0]; x++)
{
DetourTransactionBegin();
DetourUpdateThread(GetCurrentThread());
DetourAttach((PVOID*)hooks[i].data[x].function, (PVOID)hooks[i].data[x].new_function);
DetourTransactionCommit();
}
}
}
if (g_hook_method == 3 || g_hook_method == 4)
@ -144,7 +209,20 @@ void hook_create(char *module_name, char *function_name, PROC new_function, PROC
if (_wcsnicmp(game_dir, mod_dir, wcslen(game_dir)) == 0)
{
hook_patch_iat(hmod, module_name, function_name, new_function);
for (int i = 0; hooks[i].module_name[0]; i++)
{
if (!hooks[i].enabled)
continue;
for (int x = 0; hooks[i].data[x].function_name[0]; x++)
{
hook_patch_iat(
hmod,
hooks[i].module_name,
hooks[i].data[x].function_name,
hooks[i].data[x].new_function);
}
}
}
}
}
@ -154,19 +232,41 @@ void hook_create(char *module_name, char *function_name, PROC new_function, PROC
if (g_hook_method == 1)
{
hook_patch_iat(GetModuleHandle(NULL), module_name, function_name, new_function);
for (int i = 0; hooks[i].module_name[0]; i++)
{
if (!hooks[i].enabled)
continue;
for (int x = 0; hooks[i].data[x].function_name[0]; x++)
{
hook_patch_iat(
GetModuleHandle(NULL),
hooks[i].module_name,
hooks[i].data[x].function_name,
hooks[i].data[x].new_function);
}
}
}
}
void hook_revert(char *module_name, char *function_name, PROC new_function, PROC *function)
void hook_revert(hook_list* hooks)
{
#ifdef _MSC_VER
if (g_hook_method == 2)
{
DetourTransactionBegin();
DetourUpdateThread(GetCurrentThread());
DetourDetach((PVOID *)function, (PVOID)new_function);
DetourTransactionCommit();
for (int i = 0; hooks[i].module_name[0]; i++)
{
if (!hooks[i].enabled)
continue;
for (int x = 0; hooks[i].data[x].function_name[0]; x++)
{
DetourTransactionBegin();
DetourUpdateThread(GetCurrentThread());
DetourDetach((PVOID*)hooks[i].data[x].function, (PVOID)hooks[i].data[x].new_function);
DetourTransactionCommit();
}
}
}
if (g_hook_method == 3 || g_hook_method == 4)
@ -193,11 +293,20 @@ void hook_revert(char *module_name, char *function_name, PROC new_function, PROC
if (_wcsnicmp(game_dir, mod_dir, wcslen(game_dir)) == 0)
{
hook_patch_iat(
hmod,
module_name,
function_name,
GetProcAddress(GetModuleHandle(module_name), function_name));
for (int i = 0; hooks[i].module_name[0]; i++)
{
if (!hooks[i].enabled)
continue;
for (int x = 0; hooks[i].data[x].function_name[0]; x++)
{
hook_patch_iat(
hmod,
hooks[i].module_name,
hooks[i].data[x].function_name,
GetProcAddress(GetModuleHandle(hooks[i].module_name), hooks[i].data[x].function_name));
}
}
}
}
}
@ -207,11 +316,20 @@ void hook_revert(char *module_name, char *function_name, PROC new_function, PROC
if (g_hook_method == 1)
{
hook_patch_iat(
GetModuleHandle(NULL),
module_name,
function_name,
GetProcAddress(GetModuleHandle(module_name), function_name));
for (int i = 0; hooks[i].module_name[0]; i++)
{
if (!hooks[i].enabled)
continue;
for (int x = 0; hooks[i].data[x].function_name[0]; x++)
{
hook_patch_iat(
GetModuleHandle(NULL),
hooks[i].module_name,
hooks[i].data[x].function_name,
GetProcAddress(GetModuleHandle(hooks[i].module_name), hooks[i].data[x].function_name));
}
}
}
}
@ -236,35 +354,18 @@ void hook_init()
g_hook_active = TRUE;
hook_create("user32.dll", "GetCursorPos", (PROC)fake_GetCursorPos, (PROC *)&real_GetCursorPos);
hook_create("user32.dll", "ClipCursor", (PROC)fake_ClipCursor, (PROC *)&real_ClipCursor);
hook_create("user32.dll", "ShowCursor", (PROC)fake_ShowCursor, (PROC *)&real_ShowCursor);
hook_create("user32.dll", "SetCursor", (PROC)fake_SetCursor, (PROC *)&real_SetCursor);
hook_create("user32.dll", "GetWindowRect", (PROC)fake_GetWindowRect, (PROC *)&real_GetWindowRect);
hook_create("user32.dll", "GetClientRect", (PROC)fake_GetClientRect, (PROC *)&real_GetClientRect);
hook_create("user32.dll", "ClientToScreen", (PROC)fake_ClientToScreen, (PROC *)&real_ClientToScreen);
hook_create("user32.dll", "ScreenToClient", (PROC)fake_ScreenToClient, (PROC *)&real_ScreenToClient);
hook_create("user32.dll", "SetCursorPos", (PROC)fake_SetCursorPos, (PROC *)&real_SetCursorPos);
hook_create("user32.dll", "GetClipCursor", (PROC)fake_GetClipCursor, (PROC *)&real_GetClipCursor);
hook_create("user32.dll", "WindowFromPoint", (PROC)fake_WindowFromPoint, (PROC *)&real_WindowFromPoint);
hook_create("user32.dll", "GetCursorInfo", (PROC)fake_GetCursorInfo, (PROC *)&real_GetCursorInfo);
hook_create("user32.dll", "GetSystemMetrics", (PROC)fake_GetSystemMetrics, (PROC *)&real_GetSystemMetrics);
hook_create("user32.dll", "SetWindowPos", (PROC)fake_SetWindowPos, (PROC *)&real_SetWindowPos);
hook_create("user32.dll", "MoveWindow", (PROC)fake_MoveWindow, (PROC *)&real_MoveWindow);
hook_create("user32.dll", "SendMessageA", (PROC)fake_SendMessageA, (PROC *)&real_SendMessageA);
hook_create("user32.dll", "SetWindowLongA", (PROC)fake_SetWindowLongA, (PROC *)&real_SetWindowLongA);
hook_create("user32.dll", "EnableWindow", (PROC)fake_EnableWindow, (PROC *)&real_EnableWindow);
hook_create("user32.dll", "CreateWindowExA", (PROC)fake_CreateWindowExA, (PROC *)&real_CreateWindowExA);
hook_create("user32.dll", "DestroyWindow", (PROC)fake_DestroyWindow, (PROC *)&real_DestroyWindow);
hook_create("gdi32.dll", "GetDeviceCaps", (PROC)fake_GetDeviceCaps, (PROC*)&real_GetDeviceCaps);
if (g_hook_method == 4)
{
hook_create("kernel32.dll", "LoadLibraryA", (PROC)fake_LoadLibraryA, (PROC*)&real_LoadLibraryA);
hook_create("kernel32.dll", "LoadLibraryW", (PROC)fake_LoadLibraryW, (PROC*)&real_LoadLibraryW);
hook_create("kernel32.dll", "LoadLibraryExA", (PROC)fake_LoadLibraryExA, (PROC*)&real_LoadLibraryExA);
hook_create("kernel32.dll", "LoadLibraryExW", (PROC)fake_LoadLibraryExW, (PROC*)&real_LoadLibraryExW);
for (int i = 0; g_hooks[i].module_name[0]; i++)
{
if (_stricmp(g_hooks[i].module_name, "kernel32.dll") == 0)
{
g_hooks[i].enabled = TRUE;
}
}
}
hook_create((hook_list*)&g_hooks);
}
}
@ -284,34 +385,6 @@ void hook_exit()
}
#endif
hook_revert("user32.dll", "GetCursorPos", (PROC)fake_GetCursorPos, (PROC *)&real_GetCursorPos);
hook_revert("user32.dll", "ClipCursor", (PROC)fake_ClipCursor, (PROC *)&real_ClipCursor);
hook_revert("user32.dll", "ShowCursor", (PROC)fake_ShowCursor, (PROC *)&real_ShowCursor);
hook_revert("user32.dll", "SetCursor", (PROC)fake_SetCursor, (PROC *)&real_SetCursor);
hook_revert("user32.dll", "GetWindowRect", (PROC)fake_GetWindowRect, (PROC *)&real_GetWindowRect);
hook_revert("user32.dll", "GetClientRect", (PROC)fake_GetClientRect, (PROC *)&real_GetClientRect);
hook_revert("user32.dll", "ClientToScreen", (PROC)fake_ClientToScreen, (PROC *)&real_ClientToScreen);
hook_revert("user32.dll", "ScreenToClient", (PROC)fake_ScreenToClient, (PROC *)&real_ScreenToClient);
hook_revert("user32.dll", "SetCursorPos", (PROC)fake_SetCursorPos, (PROC *)&real_SetCursorPos);
hook_revert("user32.dll", "GetClipCursor", (PROC)fake_GetClipCursor, (PROC *)&real_GetClipCursor);
hook_revert("user32.dll", "WindowFromPoint", (PROC)fake_WindowFromPoint, (PROC *)&real_WindowFromPoint);
hook_revert("user32.dll", "GetCursorInfo", (PROC)fake_GetCursorInfo, (PROC *)&real_GetCursorInfo);
hook_revert("user32.dll", "GetSystemMetrics", (PROC)fake_GetSystemMetrics, (PROC *)&real_GetSystemMetrics);
hook_revert("user32.dll", "SetWindowPos", (PROC)fake_SetWindowPos, (PROC *)&real_SetWindowPos);
hook_revert("user32.dll", "MoveWindow", (PROC)fake_MoveWindow, (PROC *)&real_MoveWindow);
hook_revert("user32.dll", "SendMessageA", (PROC)fake_SendMessageA, (PROC *)&real_SendMessageA);
hook_revert("user32.dll", "SetWindowLongA", (PROC)fake_SetWindowLongA, (PROC *)&real_SetWindowLongA);
hook_revert("user32.dll", "EnableWindow", (PROC)fake_EnableWindow, (PROC *)&real_EnableWindow);
hook_revert("user32.dll", "CreateWindowExA", (PROC)fake_CreateWindowExA, (PROC *)&real_CreateWindowExA);
hook_revert("user32.dll", "DestroyWindow", (PROC)fake_DestroyWindow, (PROC *)&real_DestroyWindow);
hook_revert("gdi32.dll", "GetDeviceCaps", (PROC)fake_GetDeviceCaps, (PROC*)&real_GetDeviceCaps);
if (g_hook_method == 4)
{
hook_revert("kernel32.dll", "LoadLibraryA", (PROC)fake_LoadLibraryA, (PROC*)&real_LoadLibraryA);
hook_revert("kernel32.dll", "LoadLibraryW", (PROC)fake_LoadLibraryW, (PROC*)&real_LoadLibraryW);
hook_revert("kernel32.dll", "LoadLibraryExA", (PROC)fake_LoadLibraryExA, (PROC*)&real_LoadLibraryExA);
hook_revert("kernel32.dll", "LoadLibraryExW", (PROC)fake_LoadLibraryExW, (PROC*)&real_LoadLibraryExW);
}
hook_revert((hook_list*)&g_hooks);
}
}