45 lines
1.8 KiB
C#
45 lines
1.8 KiB
C#
//-----------------------------------------------------------------------------
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//-----------------------------------------------------------------------------
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namespace System.ServiceModel.Activation.Interop
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{
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using System;
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using System.Security;
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using System.Runtime.InteropServices;
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using System.Security.Principal;
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using System.Runtime.Versioning;
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using System.Runtime;
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[SuppressUnmanagedCodeSecurity]
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static class SafeNativeMethods
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{
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public const int ERROR_NO_TOKEN = 1008;
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const string ADVAPI32 = "advapi32.dll";
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const string KERNEL32 = "kernel32.dll";
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[DllImport(ADVAPI32, SetLastError = true, EntryPoint = "OpenThreadToken")]
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[ResourceExposure(ResourceScope.None)]
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static extern bool OpenThreadTokenCritical(
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[In] IntPtr ThreadHandle,
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[In] TokenAccessLevels DesiredAccess,
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[In] bool OpenAsSelf,
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[Out] out SafeCloseHandleCritical TokenHandle);
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[DllImport(KERNEL32, SetLastError = true)]
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[ResourceExposure(ResourceScope.None)]
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static extern IntPtr GetCurrentThread();
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[Fx.Tag.SecurityNote(Critical = "Calls two safe native methods: GetCurrentThread and OpenThreadToken." +
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"Marshal.GetLastWin32Error captures current thread token in a SecurityCritical field.")]
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[SecurityCritical]
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internal static bool OpenCurrentThreadTokenCritical(TokenAccessLevels desiredAccess, bool openAsSelf, out SafeCloseHandleCritical tokenHandle, out int error)
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{
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bool result = OpenThreadTokenCritical(GetCurrentThread(), desiredAccess, openAsSelf, out tokenHandle);
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error = Marshal.GetLastWin32Error();
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return result;
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}
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}
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}
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