public static Process LaunchGame(string workingDir, string exePath, string arguments, IDictionary <string, string> envVars)
{
Process process;
var userName = Environment.UserName;
var pExplicitAccess = new PInvoke.EXPLICIT_ACCESS();
PInvoke.BuildExplicitAccessWithName(
ref pExplicitAccess,
userName,
PInvoke.STANDARD_RIGHTS_ALL | PInvoke.SPECIFIC_RIGHTS_ALL & ~PInvoke.PROCESS_VM_WRITE,
PInvoke.GRANT_ACCESS,
0);
if (PInvoke.SetEntriesInAcl(1, ref pExplicitAccess, IntPtr.Zero, out var newAcl) != 0)
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
var secDesc = new PInvoke.SECURITY_DESCRIPTOR();
if (!PInvoke.InitializeSecurityDescriptor(out secDesc, PInvoke.SECURITY_DESCRIPTOR_REVISION))
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
if (!PInvoke.SetSecurityDescriptorDacl(ref secDesc, true, newAcl, false))
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
var psecDesc = Marshal.AllocHGlobal(Marshal.SizeOf <PInvoke.SECURITY_DESCRIPTOR>());
Marshal.StructureToPtr <PInvoke.SECURITY_DESCRIPTOR>(secDesc, psecDesc, true);
var lpProcessInformation = new PInvoke.PROCESS_INFORMATION();
var lpEnvironment = IntPtr.Zero;
try
{
if (envVars.Count > 0)
{
string envstr = string.Join("\0", envVars.Select(entry => entry.Key + "=" + entry.Value));
lpEnvironment = Marshal.StringToHGlobalAnsi(envstr);
}
var lpProcessAttributes = new PInvoke.SECURITY_ATTRIBUTES
{
nLength = Marshal.SizeOf <PInvoke.SECURITY_ATTRIBUTES>(),
lpSecurityDescriptor = psecDesc,
bInheritHandle = false
};
var lpStartupInfo = new PInvoke.STARTUPINFO
{
cb = Marshal.SizeOf <PInvoke.STARTUPINFO>()
};
if (!PInvoke.CreateProcess(
null,
exePath + " " + arguments,
ref lpProcessAttributes,
IntPtr.Zero,
false,
PInvoke.CREATE_SUSPENDED,
IntPtr.Zero,
workingDir,
ref lpStartupInfo,
out lpProcessInformation))
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
DisableSeDebug(lpProcessInformation.hProcess);
process = new ExistingProcess(lpProcessInformation.hProcess);
PInvoke.ResumeThread(lpProcessInformation.hThread);
process.WaitForInputIdle();
if (PInvoke.GetSecurityInfo(
PInvoke.GetCurrentProcess(),
PInvoke.SE_OBJECT_TYPE.SE_KERNEL_OBJECT,
PInvoke.SECURITY_INFORMATION.DACL_SECURITY_INFORMATION,
IntPtr.Zero, IntPtr.Zero,
out var pACL,
IntPtr.Zero, IntPtr.Zero) != 0)
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
if (PInvoke.SetSecurityInfo(
lpProcessInformation.hProcess,
PInvoke.SE_OBJECT_TYPE.SE_KERNEL_OBJECT,
PInvoke.SECURITY_INFORMATION.DACL_SECURITY_INFORMATION | PInvoke.SECURITY_INFORMATION.UNPROTECTED_DACL_SECURITY_INFORMATION,
IntPtr.Zero, IntPtr.Zero, pACL, IntPtr.Zero) != 0)
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
}
finally
{
Marshal.FreeHGlobal(psecDesc);
if (!IntPtr.Equals(lpEnvironment, IntPtr.Zero))
{
Marshal.FreeHGlobal(lpEnvironment);
}
PInvoke.CloseHandle(lpProcessInformation.hThread);
}
return(process);
}
public static Process LaunchGame(string workingDir, string exePath, string arguments, IDictionary <string, string> envVars, DpiAwareness dpiAwareness, Action <Process> beforeResume)
{
Process process = null;
var userName = Environment.UserName;
var pExplicitAccess = new PInvoke.EXPLICIT_ACCESS();
PInvoke.BuildExplicitAccessWithName(
ref pExplicitAccess,
userName,
PInvoke.STANDARD_RIGHTS_ALL | PInvoke.SPECIFIC_RIGHTS_ALL & ~PInvoke.PROCESS_VM_WRITE,
PInvoke.GRANT_ACCESS,
0);
if (PInvoke.SetEntriesInAcl(1, ref pExplicitAccess, IntPtr.Zero, out var newAcl) != 0)
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
var secDesc = new PInvoke.SECURITY_DESCRIPTOR();
if (!PInvoke.InitializeSecurityDescriptor(out secDesc, PInvoke.SECURITY_DESCRIPTOR_REVISION))
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
if (!PInvoke.SetSecurityDescriptorDacl(ref secDesc, true, newAcl, false))
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
var psecDesc = Marshal.AllocHGlobal(Marshal.SizeOf <PInvoke.SECURITY_DESCRIPTOR>());
Marshal.StructureToPtr <PInvoke.SECURITY_DESCRIPTOR>(secDesc, psecDesc, true);
var lpProcessInformation = new PInvoke.PROCESS_INFORMATION();
var lpEnvironment = IntPtr.Zero;
try
{
if (envVars.Count > 0)
{
string envstr = string.Join("\0", envVars.Select(entry => entry.Key + "=" + entry.Value));
lpEnvironment = Marshal.StringToHGlobalAnsi(envstr);
}
var lpProcessAttributes = new PInvoke.SECURITY_ATTRIBUTES
{
nLength = Marshal.SizeOf <PInvoke.SECURITY_ATTRIBUTES>(),
lpSecurityDescriptor = psecDesc,
bInheritHandle = false
};
var lpStartupInfo = new PInvoke.STARTUPINFO
{
cb = Marshal.SizeOf <PInvoke.STARTUPINFO>()
};
var compatLayerPrev = Environment.GetEnvironmentVariable("__COMPAT_LAYER");
var compat = "RunAsInvoker ";
compat += dpiAwareness switch
{
DpiAwareness.Aware => "HighDPIAware",
DpiAwareness.Unaware => "DPIUnaware",
_ => throw new ArgumentOutOfRangeException()
};
Environment.SetEnvironmentVariable("__COMPAT_LAYER", compat);
if (!PInvoke.CreateProcess(
null,
$"\"{exePath}\" {arguments}",
ref lpProcessAttributes,
IntPtr.Zero,
false,
PInvoke.CREATE_SUSPENDED,
IntPtr.Zero,
workingDir,
ref lpStartupInfo,
out lpProcessInformation))
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
Environment.SetEnvironmentVariable("__COMPAT_LAYER", compatLayerPrev);
DisableSeDebug(lpProcessInformation.hProcess);
process = new ExistingProcess(lpProcessInformation.hProcess);
beforeResume?.Invoke(process);
PInvoke.ResumeThread(lpProcessInformation.hThread);
// Ensure that the game main window is prepared
try
{
do
{
process.WaitForInputIdle();
Thread.Sleep(100);
} while (IntPtr.Zero == TryFindGameWindow(process));
}
catch (InvalidOperationException)
{
throw new GameExitedException();
}
if (PInvoke.GetSecurityInfo(
PInvoke.GetCurrentProcess(),
PInvoke.SE_OBJECT_TYPE.SE_KERNEL_OBJECT,
PInvoke.SECURITY_INFORMATION.DACL_SECURITY_INFORMATION,
IntPtr.Zero, IntPtr.Zero,
out var pACL,
IntPtr.Zero, IntPtr.Zero) != 0)
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
if (PInvoke.SetSecurityInfo(
lpProcessInformation.hProcess,
PInvoke.SE_OBJECT_TYPE.SE_KERNEL_OBJECT,
PInvoke.SECURITY_INFORMATION.DACL_SECURITY_INFORMATION |
PInvoke.SECURITY_INFORMATION.UNPROTECTED_DACL_SECURITY_INFORMATION,
IntPtr.Zero, IntPtr.Zero, pACL, IntPtr.Zero) != 0)
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
}
catch (Exception ex)
{
Log.Error(ex, "[NativeAclFix] Uncaught error during initialization, trying to kill process");
try
{
process?.Kill();
}
catch (Exception killEx)
{
Log.Error(killEx, "[NativeAclFix] Could not kill process");
}
throw;
}
finally
{
Marshal.FreeHGlobal(psecDesc);
if (!IntPtr.Equals(lpEnvironment, IntPtr.Zero))
{
Marshal.FreeHGlobal(lpEnvironment);
}
PInvoke.CloseHandle(lpProcessInformation.hThread);
}
return(process);
}