jadeite/game_payload/src/main.c

#include <windows.h>

#include <ntdll.h>
#include <ace.h>
#include <game.h>
#include <core.h>
#include <utils.h>

#include <main.h>

HMODULE this_module;
size_t unload_ctr = 0;

void unload_ctr_inc() {
    unload_ctr++;
}

void unload_ctr_dec() {
    unload_ctr--;
    if (unload_ctr == 0) {
        void *pFreeLibrary = GetProcAddress(GetModuleHandleA("kernel32.dll"), "FreeLibrary");
        CreateThread(NULL, 0, pFreeLibrary, this_module, 0, NULL);
    }
}

BOOL WINAPI DllMain(HINSTANCE instance, DWORD reason, LPVOID reserved) {
    // Only listen to attach
    if (reason != DLL_PROCESS_ATTACH) {
        return TRUE;
    }

    this_module = instance;

    // Dynamically link functions from ntdll
    ntdll_link();

    // Detect which game the user is trying to run
    struct game_data game;
    game_detect(&game);

    // Create fake ACE driver files
    ace_fake_driver_files();

    // Load both ACE modules
    HMODULE baseModule = ace_load_base_module(game.name);
    ace_load_driver_module();

    // ...magic
    core_setup_patcher(&game, baseModule);

    // Load the UnityPlayer module and invoke the callback
    HMODULE unityModule = LoadLibraryA("UnityPlayer.dll");
    INVOKE_CALLBACK(game.unityplayer_callback, unityModule);

    return TRUE;
}