Allow running the game without steam open
This commit is contained in:
momo5502
parent
4b2a7c8e0b
commit
50ffdc3a3a
@ -5,105 +5,47 @@
|
||||
#include "steam/steam.hpp"
|
||||
#include <utils/hook.hpp>
|
||||
|
||||
#define ProcessDebugPort 7
|
||||
#define ProcessDebugObjectHandle 30 // WinXP source says 31?
|
||||
#define ProcessDebugFlags 31 // WinXP source says 32?
|
||||
|
||||
namespace arxan
|
||||
{
|
||||
namespace
|
||||
{
|
||||
DWORD get_steam_pid()
|
||||
{
|
||||
HKEY reg_key;
|
||||
DWORD pid{};
|
||||
|
||||
if (RegOpenKeyExA(HKEY_CURRENT_USER, "Software\\Valve\\Steam\\ActiveProcess", 0, KEY_QUERY_VALUE,
|
||||
®_key) != ERROR_SUCCESS)
|
||||
return pid;
|
||||
|
||||
DWORD length = sizeof(pid);
|
||||
RegQueryValueExA(reg_key, "pid", nullptr, nullptr, reinterpret_cast<BYTE*>(&pid), &length);
|
||||
RegCloseKey(reg_key);
|
||||
|
||||
return pid;
|
||||
}
|
||||
|
||||
bool is_valid_pid(const DWORD pid)
|
||||
{
|
||||
const auto handle = OpenProcess(SYNCHRONIZE, FALSE, pid);
|
||||
if (!handle)
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
CloseHandle(handle);
|
||||
return true;
|
||||
}
|
||||
|
||||
void start_steam()
|
||||
{
|
||||
STARTUPINFOA startup_info;
|
||||
PROCESS_INFORMATION process_info;
|
||||
|
||||
ZeroMemory(&startup_info, sizeof(startup_info));
|
||||
ZeroMemory(&process_info, sizeof(process_info));
|
||||
startup_info.cb = sizeof(startup_info);
|
||||
|
||||
const auto steam_folder = steam::SteamAPI_GetSteamInstallPath();
|
||||
const auto steam_path = steam_folder + "\\steam.exe"s;
|
||||
char cmd_line[] = "steam.exe -silent";
|
||||
|
||||
if (CreateProcessA(steam_path.data(), &cmd_line[0], nullptr, nullptr, false, NULL, nullptr, steam_folder,
|
||||
&startup_info, &process_info))
|
||||
{
|
||||
CloseHandle(process_info.hThread);
|
||||
CloseHandle(
|
||||
process_info.hProcess);
|
||||
}
|
||||
}
|
||||
|
||||
void start_steam_if_wanted()
|
||||
{
|
||||
if (MessageBoxA(nullptr, "Steam must be running. Do you want to start it now?", "Information",
|
||||
MB_ICONINFORMATION | MB_YESNO) != IDYES)
|
||||
{
|
||||
TerminateProcess(GetCurrentProcess(), 1);
|
||||
}
|
||||
|
||||
start_steam();
|
||||
}
|
||||
|
||||
DWORD setup_and_get_steam_pid()
|
||||
{
|
||||
static DWORD steam_pid = []
|
||||
{
|
||||
auto pid = get_steam_pid();
|
||||
if (is_valid_pid(pid))
|
||||
{
|
||||
return pid;
|
||||
}
|
||||
|
||||
start_steam_if_wanted();
|
||||
|
||||
std::this_thread::sleep_for(3s);
|
||||
|
||||
for (int i = 0; i < 10; ++i)
|
||||
{
|
||||
std::this_thread::sleep_for(1s);
|
||||
pid = get_steam_pid();
|
||||
if (is_valid_pid(pid))
|
||||
{
|
||||
return pid;
|
||||
}
|
||||
}
|
||||
|
||||
return get_steam_pid();
|
||||
}();
|
||||
|
||||
return steam_pid;
|
||||
}
|
||||
const auto pseudo_steam_id = 0x1337;
|
||||
const auto pseudo_steam_handle = HANDLE(uint64_t(INVALID_HANDLE_VALUE) - pseudo_steam_id);
|
||||
|
||||
utils::hook::detour nt_close_hook;
|
||||
utils::hook::detour nt_query_system_information_hook;
|
||||
utils::hook::detour nt_query_information_process_hook;
|
||||
utils::hook::detour create_mutex_ex_a_hook;
|
||||
utils::hook::detour open_process_hook;
|
||||
|
||||
HANDLE process_id_to_handle(const DWORD pid)
|
||||
{
|
||||
return HANDLE(DWORD64(pid));
|
||||
}
|
||||
|
||||
void check_steam_install()
|
||||
{
|
||||
if (!*steam::SteamAPI_GetSteamInstallPath())
|
||||
{
|
||||
MessageBoxA(nullptr, "Steam must be installed for the game to run. Please install steam!", "Error",
|
||||
MB_ICONERROR);
|
||||
TerminateProcess(GetCurrentProcess(), 1);
|
||||
}
|
||||
}
|
||||
|
||||
HANDLE WINAPI open_process_stub(const DWORD access, const BOOL inherit, const DWORD pid)
|
||||
{
|
||||
if (pid == pseudo_steam_id)
|
||||
{
|
||||
return pseudo_steam_handle;
|
||||
}
|
||||
|
||||
return open_process_hook.invoke<HANDLE>(access, inherit, pid);
|
||||
}
|
||||
|
||||
HANDLE create_mutex_ex_a_stub(const LPSECURITY_ATTRIBUTES attributes, const LPCSTR name, const DWORD flags,
|
||||
const DWORD access)
|
||||
@ -214,12 +156,27 @@ namespace arxan
|
||||
{
|
||||
if (system_information_class == SystemProcessInformation)
|
||||
{
|
||||
bool injected_steam = false;
|
||||
auto addr = static_cast<uint8_t*>(system_information);
|
||||
while (true)
|
||||
{
|
||||
const auto info = reinterpret_cast<SYSTEM_PROCESS_INFORMATION*>(addr);
|
||||
remove_evil_keywords_from_string(info->ImageName);
|
||||
|
||||
static auto our_pid = process_id_to_handle(GetCurrentProcessId());
|
||||
|
||||
if (!injected_steam && info->UniqueProcessId != our_pid)
|
||||
{
|
||||
static wchar_t steam_path[] = L"steam.exe";
|
||||
|
||||
info->UniqueProcessId = process_id_to_handle(pseudo_steam_id);
|
||||
info->ImageName.Buffer = steam_path;
|
||||
info->ImageName.Length = static_cast<uint16_t>(wcslen(steam_path) * 2u);
|
||||
info->ImageName.MaximumLength = info->ImageName.Length;
|
||||
|
||||
injected_steam = true;
|
||||
}
|
||||
|
||||
if (!info->NextEntryOffset)
|
||||
{
|
||||
break;
|
||||
@ -233,31 +190,70 @@ namespace arxan
|
||||
return status;
|
||||
}
|
||||
|
||||
#define ProcessDebugPort 7
|
||||
#define ProcessDebugObjectHandle 30 // WinXP source says 31?
|
||||
#define ProcessDebugFlags 31 // WinXP source says 32?
|
||||
bool handle_steam_process(HANDLE handle, const PROCESSINFOCLASS info_class,
|
||||
const PVOID info,
|
||||
const ULONG info_length, const PULONG ret_length, NTSTATUS* status)
|
||||
{
|
||||
if (handle != pseudo_steam_handle || info_class != 43)
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
const auto steam_folder = steam::SteamAPI_GetSteamInstallPath();
|
||||
const auto steam_path = steam_folder + "\\steam.exe"s;
|
||||
const std::wstring wide_path(steam_path.begin(), steam_path.end());
|
||||
|
||||
const auto required_size = static_cast<ULONG>((wide_path.size() + 1u) * 2u + sizeof(UNICODE_STRING));
|
||||
|
||||
if (ret_length)
|
||||
{
|
||||
*ret_length = required_size;
|
||||
}
|
||||
|
||||
if (info_length < required_size)
|
||||
{
|
||||
*status = static_cast<LONG>(0xC0000004);
|
||||
return true;
|
||||
}
|
||||
|
||||
memset(info, 0, info_length);
|
||||
|
||||
auto& str = *static_cast<UNICODE_STRING*>(info);
|
||||
str.Buffer = reinterpret_cast<wchar_t*>(&str + 1);
|
||||
str.Length = static_cast<uint16_t>(wide_path.size() * 2u);
|
||||
str.MaximumLength = str.Length;
|
||||
|
||||
memcpy(str.Buffer, wide_path.data(), str.Length);
|
||||
|
||||
*status = 0;
|
||||
return true;
|
||||
}
|
||||
|
||||
NTSTATUS WINAPI nt_query_information_process_stub(HANDLE handle, const PROCESSINFOCLASS info_class,
|
||||
const PVOID info,
|
||||
const ULONG info_length, const PULONG ret_length)
|
||||
{
|
||||
NTSTATUS status{0};
|
||||
if (handle_steam_process(handle, info_class, info, info_length, ret_length, &status))
|
||||
{
|
||||
return status;
|
||||
}
|
||||
|
||||
auto* orig = static_cast<decltype(NtQueryInformationProcess)*>(nt_query_information_process_hook.
|
||||
get_original());
|
||||
|
||||
const auto status = orig(handle, info_class, info, info_length, ret_length);
|
||||
status = orig(handle, info_class, info, info_length, ret_length);
|
||||
|
||||
if (NT_SUCCESS(status))
|
||||
{
|
||||
if (info_class == ProcessBasicInformation)
|
||||
{
|
||||
static_cast<PPROCESS_BASIC_INFORMATION>(info)->Reserved3 =
|
||||
PVOID(DWORD64(setup_and_get_steam_pid()));
|
||||
static_cast<PPROCESS_BASIC_INFORMATION>(info)->Reserved3 = process_id_to_handle(pseudo_steam_id);
|
||||
}
|
||||
else if (info_class == ProcessDebugObjectHandle)
|
||||
{
|
||||
*static_cast<HANDLE*>(info) = nullptr;
|
||||
|
||||
return 0xC0000353;
|
||||
return static_cast<LONG>(0xC0000353);
|
||||
}
|
||||
else if (info_class == ProcessImageFileName || info_class == 43 /* ? */)
|
||||
{
|
||||
@ -278,6 +274,11 @@ namespace arxan
|
||||
|
||||
NTSTATUS NTAPI nt_close_stub(const HANDLE handle)
|
||||
{
|
||||
if (handle == pseudo_steam_handle)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
char info[16];
|
||||
if (NtQueryObject(handle, OBJECT_INFORMATION_CLASS(4), &info, 2, nullptr) >= 0 && size_t(handle) != 0x12345)
|
||||
{
|
||||
@ -357,7 +358,7 @@ namespace arxan
|
||||
public:
|
||||
void post_load() override
|
||||
{
|
||||
setup_and_get_steam_pid();
|
||||
check_steam_install();
|
||||
|
||||
hide_being_debugged();
|
||||
scheduler::loop(hide_being_debugged, scheduler::pipeline::async);
|
||||
@ -378,6 +379,8 @@ namespace arxan
|
||||
nt_query_system_information_hook.create(nt_query_system_information, nt_query_system_information_stub);
|
||||
nt_query_system_information_hook.move();
|
||||
|
||||
open_process_hook.create(OpenProcess, open_process_stub);
|
||||
|
||||
utils::hook::copy(this->window_text_buffer_, GetWindowTextA, sizeof(this->window_text_buffer_));
|
||||
utils::hook::jump(GetWindowTextA, get_window_text_a_stub, true, true);
|
||||
utils::hook::move_hook(GetWindowTextA);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user