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Code Issues 1 Projects Releases Wiki Activity

* properly cleanup changed reg keys + fix regquery usage bug (sizeof vs countof)

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* change steam paths in HKCU
This commit is contained in:
a 2024-08-01 03:55:06 +03:00
parent 8d145bfa04
commit 3d328662f9
2 changed files with 148 additions and 39 deletions
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4
helpers/common_helpers.cpp
View File

@ -290,7 +290,7 @@ std::wstring common_helpers::to_lower(std::wstring_view wstr)
{
if (wstr.empty()) return {};
std::wstring _wstr(wstr.size(), '\0');
std::wstring _wstr(wstr.size(), L'\0');
std::transform(wstr.begin(), wstr.end(), _wstr.begin(), [](wchar_t c) { return std::tolower(c); });
return _wstr;
}
@ -308,7 +308,7 @@ std::wstring common_helpers::to_upper(std::wstring_view wstr)
{
if (wstr.empty()) return {};
std::wstring _wstr(wstr.size(), '\0');
std::wstring _wstr(wstr.size(), L'\0');
std::transform(wstr.begin(), wstr.end(), _wstr.begin(), [](wchar_t c) { return std::toupper(c); });
return _wstr;
}

183
tools/steamclient_loader/win/ColdClientLoader.cpp
View File

@ -34,16 +34,16 @@ static dbg_log logger{pe_helpers::get_current_exe_path() + pe_helpers::get_curre
constexpr static const wchar_t STEAM_UNIVERSE[] = L"Public";
constexpr static const wchar_t STEAM_URL_PROTOCOL[] = L"URL:steam protocol";
const bool loader_is_32 = pe_helpers::is_module_32(GetModuleHandleW(NULL));
const static bool loader_is_32 = pe_helpers::is_module_32(GetModuleHandleW(NULL));
const std::wstring hklm_path(loader_is_32
const static std::wstring hklm_path(loader_is_32
? L"SOFTWARE\\Valve\\Steam"
: L"SOFTWARE\\WOW6432Node\\Valve\\Steam"
);
// Declare some variables to be used for Steam registry.
const DWORD UserId = 0x03100004771F810D & 0xffffffff;
const DWORD ProcessID = GetCurrentProcessId();
const static DWORD UserId = 0x03100004771F810D & 0xffffffff;
const static DWORD ProcessID = GetCurrentProcessId();
static std::string IniFile{};
static std::string ClientPath{};
@ -154,20 +154,26 @@ static std::vector<std::string> collect_dlls_to_inject(const bool is_exe_32, std
}
}
bool orig_steam_hkcu = false;
WCHAR OrgSteamCDir_hkcu[8192] = { 0 };
DWORD Size1_hkcu = _countof(OrgSteamCDir_hkcu);
WCHAR OrgSteamCDir64_hkcu[8192] = { 0 };
DWORD Size2_hkcu = _countof(OrgSteamCDir64_hkcu);
bool patch_registry_hkcu()
static bool orig_steam_hkcu = false;
static WCHAR OrgSteamCDir_hkcu[8192] = { 0 };
static DWORD Size1_hkcu = sizeof(OrgSteamCDir_hkcu);
static WCHAR OrgSteamCDir64_hkcu[8192] = { 0 };
static DWORD Size2_hkcu = sizeof(OrgSteamCDir64_hkcu);
static DWORD OrgSteamActiveUser_hkcu = 0;
static WCHAR OrgSteamUniverse_hkcu[8192] = { 0 };
static DWORD Size4_hkcu = sizeof(OrgSteamUniverse_hkcu);
static bool patch_registry_hkcu()
{
HKEY Registrykey = { 0 };
if (RegOpenKeyExW(HKEY_CURRENT_USER, L"Software\\Valve\\Steam\\ActiveProcess", 0, KEY_ALL_ACCESS, &Registrykey) == ERROR_SUCCESS) {
orig_steam_hkcu = true;
// Get original values to restore later.
DWORD keyType = REG_SZ;
RegQueryValueExW(Registrykey, L"SteamClientDll", 0, &keyType, (LPBYTE)&OrgSteamCDir_hkcu, &Size1_hkcu);
RegQueryValueExW(Registrykey, L"SteamClientDll64", 0, &keyType, (LPBYTE)&OrgSteamCDir64_hkcu, &Size2_hkcu);
RegQueryValueExW(Registrykey, L"SteamClientDll", 0, &keyType, (LPBYTE)OrgSteamCDir_hkcu, &Size1_hkcu);
RegQueryValueExW(Registrykey, L"SteamClientDll64", 0, &keyType, (LPBYTE)OrgSteamCDir64_hkcu, &Size2_hkcu);
DWORD SizeActiveUser_hkcu = sizeof(DWORD);
RegQueryValueExW(Registrykey, L"ActiveUser", 0, &keyType, (LPBYTE)&OrgSteamActiveUser_hkcu, &SizeActiveUser_hkcu);
RegQueryValueExW(Registrykey, L"Universe", 0, &keyType, (LPBYTE)OrgSteamUniverse_hkcu, &Size4_hkcu);
logger.write("Found previous registry entry (HKCU) for Steam");
} else if (RegCreateKeyExW(HKEY_CURRENT_USER, L"Software\\Valve\\Steam\\ActiveProcess", 0, 0, REG_OPTION_NON_VOLATILE,
KEY_ALL_ACCESS, NULL, &Registrykey, NULL) == ERROR_SUCCESS) {
@ -177,18 +183,18 @@ bool patch_registry_hkcu()
return false;
}
RegSetValueExW(Registrykey, L"ActiveUser", NULL, REG_DWORD, (const BYTE *)&UserId, sizeof(DWORD));
RegSetValueExW(Registrykey, L"pid", NULL, REG_DWORD, (const BYTE *)&ProcessID, sizeof(DWORD));
auto client_path = common_helpers::to_wstr(ClientPath);
auto client64_path = common_helpers::to_wstr(Client64Path);
RegSetValueExW(Registrykey, L"pid", NULL, REG_DWORD, (const BYTE *)&ProcessID, sizeof(DWORD));
RegSetValueExW(Registrykey, L"SteamClientDll", NULL, REG_SZ, (const BYTE*)(client_path).c_str(), static_cast<DWORD>((client_path.size() + 1) * sizeof(client_path[0])));
RegSetValueExW(Registrykey, L"SteamClientDll64", NULL, REG_SZ, (const BYTE*)client64_path.c_str(), static_cast<DWORD>((client64_path.size() + 1) * sizeof(client64_path[0])));
RegSetValueExW(Registrykey, L"ActiveUser", NULL, REG_DWORD, (const BYTE *)&UserId, sizeof(DWORD));
RegSetValueExW(Registrykey, L"Universe", NULL, REG_SZ, (const BYTE *)STEAM_UNIVERSE, (DWORD)sizeof(STEAM_UNIVERSE));
RegCloseKey(Registrykey);
return true;
}
void cleanup_registry_hkcu()
static void cleanup_registry_hkcu()
{
if (!orig_steam_hkcu) return;
@ -196,8 +202,10 @@ void cleanup_registry_hkcu()
HKEY Registrykey = { 0 };
if (RegOpenKeyExW(HKEY_CURRENT_USER, L"Software\\Valve\\Steam\\ActiveProcess", 0, KEY_ALL_ACCESS, &Registrykey) == ERROR_SUCCESS) {
// Restore the values.
RegSetValueExW(Registrykey, L"SteamClientDll", NULL, REG_SZ, (LPBYTE)OrgSteamCDir_hkcu, Size1_hkcu);
RegSetValueExW(Registrykey, L"SteamClientDll64", NULL, REG_SZ, (LPBYTE)OrgSteamCDir64_hkcu, Size2_hkcu);
RegSetValueExW(Registrykey, L"SteamClientDll", NULL, REG_SZ, (const BYTE *)OrgSteamCDir_hkcu, Size1_hkcu);
RegSetValueExW(Registrykey, L"SteamClientDll64", NULL, REG_SZ, (const BYTE *)OrgSteamCDir64_hkcu, Size2_hkcu);
RegSetValueExW(Registrykey, L"ActiveUser", NULL, REG_DWORD, (const BYTE *)&OrgSteamActiveUser_hkcu, sizeof(DWORD));
RegSetValueExW(Registrykey, L"Universe", NULL, REG_SZ, (const BYTE *)OrgSteamUniverse_hkcu, Size4_hkcu);
// Close the HKEY Handle.
RegCloseKey(Registrykey);
@ -207,17 +215,78 @@ void cleanup_registry_hkcu()
}
bool orig_steam_hklm = false;
WCHAR OrgInstallPath_hklm[8192] = { 0 };
DWORD Size1_hklm = _countof(OrgInstallPath_hklm);
bool patch_registry_hklm()
static bool orig_steam_hkcu_2 = false;
static WCHAR OrgSteamModDir_hkcu_2[8192] = { 0 };
static DWORD Size1_hkcu_2 = sizeof(OrgSteamModDir_hkcu_2);
static WCHAR OrgSteamPath_hkcu_2[8192] = { 0 };
static DWORD Size2_hkcu_2 = sizeof(OrgSteamPath_hkcu_2);
static WCHAR OrgSteamExe_2[8192] = { 0 };
static DWORD Size3_hkcu_2 = sizeof(OrgSteamExe_2);
static bool patch_registry_hkcu_2()
{
HKEY Registrykey = { 0 };
if (RegOpenKeyExW(HKEY_CURRENT_USER, L"Software\\Valve\\Steam", 0, KEY_ALL_ACCESS, &Registrykey) == ERROR_SUCCESS) {
orig_steam_hkcu_2 = true;
// Get original values to restore later.
DWORD keyType = REG_SZ;
RegQueryValueExW(Registrykey, L"SourceModInstallPath", 0, &keyType, (LPBYTE)OrgSteamModDir_hkcu_2, &Size1_hkcu_2);
RegQueryValueExW(Registrykey, L"SteamPath", 0, &keyType, (LPBYTE)OrgSteamPath_hkcu_2, &Size2_hkcu_2);
RegQueryValueExW(Registrykey, L"SteamExe", 0, &keyType, (LPBYTE)OrgSteamExe_2, &Size3_hkcu_2);
logger.write("Found previous registry entry (HKCU #2) for Steam");
} else if (RegCreateKeyExW(HKEY_CURRENT_USER, L"Software\\Valve\\Steam", 0, 0, REG_OPTION_NON_VOLATILE,
KEY_ALL_ACCESS, NULL, &Registrykey, NULL) == ERROR_SUCCESS) {
logger.write("Created new registry entry (HKCU #2) for Steam");
} else {
logger.write("Unable to patch Registry (HKCU #2), error = " + std::to_string(GetLastError()));
return false;
}
auto my_path = common_helpers::to_wstr(pe_helpers::get_current_exe_path());
my_path.pop_back(); // remove last '\\'
const auto my_exe = common_helpers::to_wstr(pe_helpers::get_current_exe_path() + pe_helpers::get_current_exe_name());
const auto appid_dword = std::stoul(AppId);
RegSetValueExW(Registrykey, L"RunningAppID", NULL, REG_DWORD, (const BYTE *)&appid_dword, sizeof(DWORD));
RegSetValueExW(Registrykey, L"SourceModInstallPath", NULL, REG_SZ, (const BYTE*)my_path.c_str(), static_cast<DWORD>((my_path.size() + 1) * sizeof(my_path[0])));
RegSetValueExW(Registrykey, L"SteamPath", NULL, REG_SZ, (const BYTE*)my_path.c_str(), static_cast<DWORD>((my_path.size() + 1) * sizeof(my_path[0])));
RegSetValueExW(Registrykey, L"SteamExe", NULL, REG_SZ, (const BYTE*)my_exe.c_str(), static_cast<DWORD>((my_exe.size() + 1) * sizeof(my_exe[0])));
RegCloseKey(Registrykey);
return true;
}
static void cleanup_registry_hkcu_2()
{
if (!orig_steam_hkcu_2) return;
logger.write("restoring registry entries (HKCU #2)");
HKEY Registrykey = { 0 };
if (RegOpenKeyExW(HKEY_CURRENT_USER, L"Software\\Valve\\Steam", 0, KEY_ALL_ACCESS, &Registrykey) == ERROR_SUCCESS) {
// Restore the values.
RegSetValueExW(Registrykey, L"SourceModInstallPath", NULL, REG_SZ, (LPBYTE)OrgSteamModDir_hkcu_2, Size1_hkcu_2);
RegSetValueExW(Registrykey, L"SteamPath", NULL, REG_SZ, (LPBYTE)OrgSteamPath_hkcu_2, Size2_hkcu_2);
RegSetValueExW(Registrykey, L"SteamExe", NULL, REG_SZ, (LPBYTE)OrgSteamExe_2, Size3_hkcu_2);
// Close the HKEY Handle.
RegCloseKey(Registrykey);
} else {
logger.write("Unable to restore the original registry entry (HKCU #2), error = " + std::to_string(GetLastError()));
}
}
static bool orig_steam_hklm = false;
static WCHAR OrgInstallPath_hklm[8192] = { 0 };
static DWORD Size1_hklm = sizeof(OrgInstallPath_hklm);
static WCHAR OrgUniverse_hklm[8192] = { 0 };
static DWORD Size2_hklm = sizeof(OrgUniverse_hklm);
static bool patch_registry_hklm()
{
HKEY Registrykey = { 0 };
if (RegOpenKeyExW(HKEY_LOCAL_MACHINE, hklm_path.c_str(), 0, KEY_ALL_ACCESS, &Registrykey) == ERROR_SUCCESS) {
orig_steam_hklm = true;
// Get original values to restore later.
DWORD keyType = REG_SZ;
RegQueryValueExW(Registrykey, L"InstallPath", 0, &keyType, (LPBYTE)&OrgInstallPath_hklm, &Size1_hklm);
RegQueryValueExW(Registrykey, L"InstallPath", 0, &keyType, (LPBYTE)OrgInstallPath_hklm, &Size1_hklm);
RegQueryValueExW(Registrykey, L"Universe", 0, &keyType, (LPBYTE)OrgUniverse_hklm, &Size2_hklm);
logger.write("Found previous registry entry (HKLM) for Steam");
} else if (RegCreateKeyExW(HKEY_LOCAL_MACHINE, hklm_path.c_str(), 0, 0, REG_OPTION_NON_VOLATILE,
KEY_ALL_ACCESS, NULL, &Registrykey, NULL) == ERROR_SUCCESS) {
@ -227,17 +296,16 @@ bool patch_registry_hklm()
return false;
}
auto path_no_backslash = pe_helpers::get_current_exe_path();
path_no_backslash = path_no_backslash.substr(0, path_no_backslash.size() - 1);
const auto my_path = common_helpers::to_wstr(path_no_backslash);
RegSetValueExW(Registrykey, L"InstallPath", NULL, REG_SZ, (const BYTE*)my_path.c_str(), static_cast<DWORD>((my_path.size() + 1) * sizeof(my_path[0])));
auto my_path = common_helpers::to_wstr(pe_helpers::get_current_exe_path());
my_path.pop_back(); // remove last '\\'
RegSetValueExW(Registrykey, L"SteamPID", NULL, REG_DWORD, (const BYTE *)&ProcessID, sizeof(DWORD));
RegSetValueExW(Registrykey, L"InstallPath", NULL, REG_SZ, (const BYTE*)my_path.c_str(), static_cast<DWORD>((my_path.size() + 1) * sizeof(my_path[0])));
RegSetValueExW(Registrykey, L"Universe", NULL, REG_SZ, (const BYTE *)STEAM_UNIVERSE, (DWORD)sizeof(STEAM_UNIVERSE));
RegCloseKey(Registrykey);
return true;
}
void cleanup_registry_hklm()
static void cleanup_registry_hklm()
{
if (!orig_steam_hklm) return;
@ -245,6 +313,7 @@ void cleanup_registry_hklm()
HKEY Registrykey = { 0 };
if (RegOpenKeyExW(HKEY_LOCAL_MACHINE, hklm_path.c_str(), 0, KEY_ALL_ACCESS, &Registrykey) == ERROR_SUCCESS) {
RegSetValueExW(Registrykey, L"InstallPath", NULL, REG_SZ, (const BYTE *)OrgInstallPath_hklm, Size1_hklm);
RegSetValueExW(Registrykey, L"Universe", NULL, REG_SZ, (const BYTE *)OrgUniverse_hklm, Size2_hklm);
RegCloseKey(Registrykey);
} else {
logger.write("Unable to restore the original registry entry (HKLM), error = " + std::to_string(GetLastError()));
@ -252,15 +321,20 @@ void cleanup_registry_hklm()
}
bool orig_steam_hkcs_1 = false;
bool orig_steam_hkcs_2 = false;
WCHAR OrgCommand_hkcs[8192] = { 0 };
DWORD Size1_hkcs = _countof(OrgCommand_hkcs);
bool patch_registry_hkcs()
static bool orig_steam_hkcs_1 = false;
static bool orig_steam_hkcs_2 = false;
static WCHAR OrgCommand_hkcs[8192] = { 0 };
static DWORD Size1_hkcs = sizeof(OrgCommand_hkcs);
static WCHAR OrgUrlProtocol_hkcs[8192] = { 0 };
static DWORD Size2_hkcs = sizeof(OrgUrlProtocol_hkcs);
static bool patch_registry_hkcs()
{
HKEY Registrykey = { 0 };
if (RegOpenKeyExW(HKEY_CLASSES_ROOT, L"steam", 0, KEY_ALL_ACCESS, &Registrykey) == ERROR_SUCCESS) {
orig_steam_hkcs_1 = true;
// Get original values to restore later.
DWORD keyType = REG_SZ;
RegQueryValueExW(Registrykey, L"URL Protocol", 0, &keyType, (LPBYTE)&OrgUrlProtocol_hkcs, &Size2_hkcs);
logger.write("Found previous registry entry (HKCS) #1 for Steam");
} else if (RegCreateKeyExW(HKEY_CLASSES_ROOT, L"steam", 0, 0, REG_OPTION_NON_VOLATILE,
KEY_ALL_ACCESS, NULL, &Registrykey, NULL) == ERROR_SUCCESS) {
@ -296,10 +370,10 @@ bool patch_registry_hkcs()
return true;
}
void cleanup_registry_hkcs()
static void cleanup_registry_hkcs()
{
if (orig_steam_hkcs_2) {
logger.write("restoring registry entries (HKCS) #1");
logger.write("restoring registry entries (HKCS) #2");
HKEY Registrykey = { 0 };
if (RegOpenKeyExW(HKEY_CLASSES_ROOT, L"steam\\Shell\\Open\\Command", 0, KEY_ALL_ACCESS, &Registrykey) == ERROR_SUCCESS) {
RegSetValueExW(Registrykey, L"", NULL, REG_SZ, (const BYTE *)OrgCommand_hkcs, Size1_hkcs);
@ -309,7 +383,16 @@ void cleanup_registry_hkcs()
}
}
if (!orig_steam_hkcs_1) {
if (orig_steam_hkcs_1) {
logger.write("restoring registry entries (HKCS) #1");
HKEY Registrykey = { 0 };
if (RegOpenKeyExW(HKEY_CLASSES_ROOT, L"steam", 0, KEY_ALL_ACCESS, &Registrykey) == ERROR_SUCCESS) {
RegSetValueExW(Registrykey, L"URL Protocol", NULL, REG_SZ, (const BYTE *)OrgUrlProtocol_hkcs, Size2_hkcs);
RegCloseKey(Registrykey);
} else {
logger.write("Unable to restore the original registry entry (HKCS) #1, error = " + std::to_string(GetLastError()));
}
} else {
logger.write("removing registry entries (HKCS) #2 (added by loader)");
HKEY Registrykey = { 0 };
RegDeleteKeyW(HKEY_CLASSES_ROOT, L"steam");
@ -318,7 +401,7 @@ void cleanup_registry_hkcs()
void set_steam_env_vars(const std::string &AppId)
static void set_steam_env_vars(const std::string &AppId)
{
SetEnvironmentVariableA("SteamAppId", AppId.c_str());
SetEnvironmentVariableA("SteamGameId", AppId.c_str());
@ -580,16 +663,37 @@ int APIENTRY wWinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance
}
if (!patch_registry_hkcu()) {
cleanup_registry_hkcu();
cleanup_registry_hkcu_2();
cleanup_registry_hklm();
cleanup_registry_hkcs();
logger.write("Unable to patch Registry (HKCU).");
MessageBoxA(NULL, "Unable to patch Registry (HKCU).", "ColdClientLoader", MB_ICONERROR);
return 1;
}
if (!patch_registry_hkcu_2()) {
cleanup_registry_hkcu();
cleanup_registry_hkcu_2();
cleanup_registry_hklm();
cleanup_registry_hkcs();
logger.write("Unable to patch Registry (HKCU #2).");
MessageBoxA(NULL, "Unable to patch Registry (HKCU #2).", "ColdClientLoader", MB_ICONERROR);
return 1;
}
// this fails due to admin rights when Steam isn't installed, not a big deal
// ----------------------------------------------
patch_registry_hklm();
// if (!patch_registry_hklm()) {
// cleanup_registry_hkcu();
// cleanup_registry_hkcu_2();
// cleanup_registry_hklm();
// cleanup_registry_hkcs();
//
// logger.write("Unable to patch Registry (HKLM).");
// MessageBoxA(NULL, "Unable to patch Registry (HKLM).", "ColdClientLoader", MB_ICONERROR);
// return 1;
// }
@ -599,7 +703,9 @@ int APIENTRY wWinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance
patch_registry_hkcs();
// if (!patch_registry_hkcs()) {
// cleanup_registry_hkcu();
// cleanup_registry_hkcu_2();
// cleanup_registry_hklm();
// cleanup_registry_hkcs();
// logger.write("Unable to patch Registry (HKCS).");
// MessageBoxA(NULL, "Unable to patch Registry (HKCS).", "ColdClientLoader", MB_ICONERROR);
@ -623,6 +729,7 @@ int APIENTRY wWinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance
if (!CreateProcessW(exe_file.c_str(), (LPWSTR)CommandLine.c_str(), NULL, NULL, TRUE, CREATE_SUSPENDED, NULL, common_helpers::to_wstr(ExeRunDir).c_str(), &info, &processInfo)) {
logger.write("Unable to load the requested EXE file, error = " + std::to_string(GetLastError()));
cleanup_registry_hkcu();
cleanup_registry_hkcu_2();
cleanup_registry_hklm();
cleanup_registry_hkcs();
MessageBoxA(NULL, "Unable to load the requested EXE file.", "ColdClientLoader", MB_ICONERROR);
@ -647,6 +754,7 @@ int APIENTRY wWinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance
CloseHandle(processInfo.hThread);
cleanup_registry_hkcu();
cleanup_registry_hkcu_2();
cleanup_registry_hklm();
cleanup_registry_hkcs();
@ -686,8 +794,9 @@ int APIENTRY wWinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance
MessageBoxA(NULL, "Start the game, then press OK when you have finished playing to close the loader", "Cold Client Loader (waiting)", MB_OK);
}
if (PersistentMode != 2 || AppId.empty()) { // persistent mode 0 or 1, or mode 2 without app id
if (PersistentMode != 2 || AppId.empty()) { // persistent mode 0 or 1, or mode 2 without app id
cleanup_registry_hkcu();
cleanup_registry_hkcu_2();
cleanup_registry_hklm();
cleanup_registry_hkcs();
}