127 lines
4.1 KiB
C++
127 lines
4.1 KiB
C++
#include <iostream>
|
|
#include <windows.h>
|
|
#include <vector>
|
|
#include "DLL.h"
|
|
|
|
#define MOD_MAJOR_VERSION 3
|
|
#define MOD_MINOR_VERSION 1
|
|
|
|
|
|
#define no_optimize __attribute__((optimize("O0")))
|
|
|
|
#define MUST_IMPORT(dllname, name)\
|
|
dllname->name = GetProcAddress(dllname->handle, #name);\
|
|
if (!dllname->name) {\
|
|
char ERROR_MESSAGE_POPUP[512] = {0};\
|
|
sprintf(ERROR_MESSAGE_POPUP, "%s does not export " #name ".\n", dllname->fileName.c_str());\
|
|
Popup("Error", ERROR_MESSAGE_POPUP);\
|
|
exit(1);\
|
|
}
|
|
|
|
#define IMPORT(dllname, name)\
|
|
dllname->name = GetProcAddress(dllname->handle, #name);
|
|
|
|
#define PUSH_ALL "push rax\npush rbx\npush rcx\npush rdx\npush rsi\npush rdi\npush rbp\npush r8\npush r9\npush r10\npush r11\npush r12\npush r13\npush r14\npush r15\n"
|
|
#define POP_ALL "pop r15\npop r14\npop r13\npop r12\npop r11\npop r10\npop r9\npop r8\npop rbp\npop rdi\npop rsi\npop rdx\npop rcx\npop rbx\npop rax\n"
|
|
|
|
#define PREPARE_STACK "mov rax, rsp \n and rsp, 0xFFFFFFFFFFFFFFF0 \n push rax \n sub rsp, 0x28 \n"
|
|
#define RESTORE_STACK "add rsp, 0x28 \n pop rsp \n"
|
|
|
|
|
|
using namespace std;
|
|
|
|
void* base;
|
|
vector <DLL*> modDLLs;
|
|
|
|
void WriteFarJMP(void* source, void* destination) {
|
|
DWORD dwOldProtection;
|
|
VirtualProtect(source, 14, PAGE_EXECUTE_READWRITE, &dwOldProtection);
|
|
char* location = (char*)source;
|
|
|
|
// Far jump
|
|
*((UINT16*)&location[0]) = 0x25FF;
|
|
|
|
// mode
|
|
*((UINT32*)&location[2]) = 0x00000000;
|
|
|
|
*((UINT64*)&location[6]) = (UINT64)destination;
|
|
|
|
VirtualProtect(location, 14, dwOldProtection, &dwOldProtection);
|
|
}
|
|
|
|
#include "callbacks/ChatHandler.h"
|
|
|
|
void SetupHandlers() {
|
|
SetupChatHandler();
|
|
}
|
|
|
|
void Popup(char* title, char* msg ){
|
|
MessageBoxA(0, msg, title, MB_OK | MB_ICONINFORMATION);
|
|
}
|
|
|
|
extern "C" __declspec(dllexport) BOOL APIENTRY DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved) {
|
|
switch (fdwReason) {
|
|
case DLL_PROCESS_ATTACH:
|
|
base = GetModuleHandle(NULL);
|
|
|
|
SetupHandlers();
|
|
|
|
//Find mods
|
|
HANDLE hFind;
|
|
WIN32_FIND_DATA data;
|
|
|
|
CreateDirectory("Mods", NULL);
|
|
hFind = FindFirstFile("Mods\\*.dll", &data);
|
|
if (hFind != INVALID_HANDLE_VALUE) {
|
|
do {
|
|
// We should be loaded into the application's address space, so we can just LoadLibraryA
|
|
DLL* dll = new DLL(string("Mods\\") + data.cFileName);
|
|
dll->Load();
|
|
printf("Loaded %s\n", dll->fileName.c_str());
|
|
modDLLs.push_back(dll);
|
|
} while (FindNextFile(hFind, &data));
|
|
FindClose(hFind);
|
|
}
|
|
|
|
// Find all the functions the mods may export
|
|
for (DLL* dll: modDLLs) {
|
|
MUST_IMPORT(dll, ModMajorVersion);
|
|
MUST_IMPORT(dll, ModMinorVersion);
|
|
MUST_IMPORT(dll, ModPreInitialize);
|
|
IMPORT(dll, ModInitialize);
|
|
IMPORT(dll, HandleChat);
|
|
}
|
|
|
|
// Ensure version compatibility
|
|
char msg[512] = {0};
|
|
for (DLL* dll: modDLLs) {
|
|
int majorVersion = ((int(*)())dll->ModMajorVersion)();
|
|
int minorVersion = ((int(*)())dll->ModMinorVersion)();
|
|
if (majorVersion != MOD_MAJOR_VERSION) {
|
|
sprintf(msg, "%s has major version %d but requires %d.\n", dll->fileName.c_str(), majorVersion, MOD_MAJOR_VERSION);
|
|
Popup("Error", msg);
|
|
exit(1);
|
|
}
|
|
|
|
if (minorVersion > MOD_MINOR_VERSION) {
|
|
sprintf(msg, "%s has minor version %d but requires %d or lower.\n", dll->fileName.c_str(), minorVersion, MOD_MINOR_VERSION);
|
|
Popup("Error", msg);
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
// Run Initialization routines on all mods
|
|
for (DLL* dll: modDLLs) {
|
|
((void(*)())dll->ModPreInitialize)();
|
|
}
|
|
|
|
for (DLL* dll: modDLLs) {
|
|
if (dll->ModInitialize) {
|
|
((void(*)())dll->ModInitialize)();
|
|
}
|
|
}
|
|
|
|
}
|
|
return true;
|
|
}
|