|
//------------------------------------------------------------------------------
// <copyright file="SafeNativeMethods.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
namespace Microsoft.Win32 {
using System.Runtime.InteropServices;
using System.Runtime.Versioning;
using System;
using System.Security;
#if !SILVERLIGHT || FEATURE_NETCORE
using System.Diagnostics.CodeAnalysis;
using System.Security.Permissions;
using System.Collections;
using System.IO;
using System.Text;
using System.Threading;
using Microsoft.Win32.SafeHandles;
using System.Runtime.ConstrainedExecution;
using System.Diagnostics;
#endif // !SILVERLIGHT || FEATURE_NETCORE
#if !SILVERLIGHT
[HostProtection(MayLeakOnAbort = true)]
[SuppressUnmanagedCodeSecurity]
#endif // !SILVERLIGHT
internal static class SafeNativeMethods {
#if FEATURE_PAL && !FEATURE_NETCORE
[DllImport("/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation", CallingConvention = CallingConvention.Cdecl)]
public static extern IntPtr CFStringCreateWithCharacters(
IntPtr alloc, // CFAllocatorRef
[MarshalAs(UnmanagedType.LPWStr)]
string chars,
int numChars);
[DllImport("/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation", CallingConvention = CallingConvention.Cdecl)]
public static extern void CFRelease(IntPtr cf);
[DllImport("/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation", CallingConvention = CallingConvention.Cdecl)]
public static extern int CFUserNotificationDisplayAlert(double timeout, uint flags, IntPtr iconUrl, IntPtr soundUrl, IntPtr localizationUrl, IntPtr alertHeader, IntPtr alertMessage, IntPtr defaultButtonTitle, IntPtr alternateButtonTitle, IntPtr otherButtonTitle, ref uint responseFlags);
#endif // SILVERLIGHT && !FEATURE_NETCORE
public const int
MB_RIGHT = 0x00080000,
MB_RTLREADING = 0x00100000;
#if !FEATURE_PAL && !FEATURE_CORESYSTEM
[DllImport(ExternDll.Gdi32, CharSet = System.Runtime.InteropServices.CharSet.Auto)]
[ResourceExposure(ResourceScope.None)]
public static extern bool GetTextMetrics(IntPtr hDC, [In, Out] NativeMethods.TEXTMETRIC tm);
[DllImport(ExternDll.Gdi32, CharSet = System.Runtime.InteropServices.CharSet.Auto)]
[ResourceExposure(ResourceScope.Process)]
public static extern IntPtr GetStockObject(int nIndex);
#endif
[DllImport(ExternDll.Kernel32, CharSet = System.Runtime.InteropServices.CharSet.Auto, BestFitMapping = true)]
[ResourceExposure(ResourceScope.None)]
public static extern void OutputDebugString(String message);
[DllImport(ExternDll.User32, CharSet = System.Runtime.InteropServices.CharSet.Unicode, EntryPoint="MessageBoxW", ExactSpelling=true)]
private static extern int MessageBoxSystem(IntPtr hWnd, string text, string caption, int type);
[SecurityCritical]
public static int MessageBox(IntPtr hWnd, string text, string caption, int type) {
try {
return MessageBoxSystem(hWnd, text, caption, type);
} catch (DllNotFoundException) {
return 0;
} catch (EntryPointNotFoundException) {
return 0;
}
}
#if !SILVERLIGHT || FEATURE_NETCORE
public const int
FORMAT_MESSAGE_ALLOCATE_BUFFER = 0x00000100,
FORMAT_MESSAGE_IGNORE_INSERTS = 0x00000200,
FORMAT_MESSAGE_FROM_STRING = 0x00000400,
FORMAT_MESSAGE_FROM_SYSTEM = 0x00001000,
FORMAT_MESSAGE_ARGUMENT_ARRAY = 0x00002000;
public const int ERROR_INSUFFICIENT_BUFFER = 0x7A;
#if FEATURE_NETCORE
[SecurityCritical]
[System.Security.SuppressUnmanagedCodeSecurity]
#endif
[DllImport(ExternDll.Kernel32, CharSet=System.Runtime.InteropServices.CharSet.Auto, SetLastError=true, BestFitMapping=true)]
[SuppressMessage("Microsoft.Security", "CA2101:SpecifyMarshalingForPInvokeStringArguments")]
[ResourceExposure(ResourceScope.None)]
public static unsafe extern int FormatMessage(int dwFlags, IntPtr lpSource_mustBeNull, uint dwMessageId,
int dwLanguageId, StringBuilder lpBuffer, int nSize, IntPtr[] arguments);
#if FEATURE_NETCORE
[SecurityCritical]
[System.Security.SuppressUnmanagedCodeSecurity]
#endif
[DllImport(ExternDll.Kernel32, CharSet = System.Runtime.InteropServices.CharSet.Auto, SetLastError = true, BestFitMapping = true)]
[SuppressMessage("Microsoft.Security", "CA2101:SpecifyMarshalingForPInvokeStringArguments")]
[ResourceExposure(ResourceScope.None)]
public static unsafe extern int FormatMessage(int dwFlags, SafeLibraryHandle lpSource, uint dwMessageId,
int dwLanguageId, StringBuilder lpBuffer, int nSize, IntPtr[] arguments);
#if FEATURE_NETCORE
[SecurityCritical]
[System.Security.SuppressUnmanagedCodeSecurity]
#else
[ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success)]
[ResourceExposure(ResourceScope.None)]
#endif
[DllImport(ExternDll.Kernel32, ExactSpelling=true, CharSet=System.Runtime.InteropServices.CharSet.Auto, SetLastError=true)]
public static extern bool CloseHandle(IntPtr handle);
#endif // !SILVERLIGHT || FEATURE_NETCORE
#if !SILVERLIGHT || FEATURE_NETCORE
#if FEATURE_NETCORE
[SecurityCritical]
[System.Security.SuppressUnmanagedCodeSecurity]
#endif
[DllImport(ExternDll.Kernel32)]
[ResourceExposure(ResourceScope.None)]
public static extern bool QueryPerformanceCounter(out long value);
#if FEATURE_NETCORE
[SecurityCritical]
[System.Security.SuppressUnmanagedCodeSecurity]
#endif
[DllImport(ExternDll.Kernel32)]
[ResourceExposure(ResourceScope.None)]
public static extern bool QueryPerformanceFrequency(out long value);
#endif // !SILVERLIGHT || FEATURE_NETCORE
#if !SILVERLIGHT
#if !FEATURE_PAL
public const int
FORMAT_MESSAGE_MAX_WIDTH_MASK = 0x000000FF,
FORMAT_MESSAGE_FROM_HMODULE = 0x00000800;
[DllImport(ExternDll.User32, CharSet=System.Runtime.InteropServices.CharSet.Auto, BestFitMapping=false)]
[ResourceExposure(ResourceScope.Machine)]
public static extern int RegisterWindowMessage(string msg);
#if DEBUG
// Used only from debug code to assert we're on the right thread
// for calling certain Windows methods.
[DllImport(ExternDll.Kernel32, CharSet=System.Runtime.InteropServices.CharSet.Auto)]
[ResourceExposure(ResourceScope.Process)]
public static extern int GetCurrentThreadId();
[DllImport(ExternDll.User32, ExactSpelling=true, CharSet=System.Runtime.InteropServices.CharSet.Auto)]
[ResourceExposure(ResourceScope.Process)]
public static extern int GetWindowThreadProcessId(HandleRef hWnd, out int lpdwProcessId);
#endif
// file src\Services\Monitoring\system\Diagnosticts\SafeNativeMethods.cs
[DllImport(ExternDll.Kernel32, CharSet=System.Runtime.InteropServices.CharSet.Unicode, SetLastError=true)]
[ResourceExposure(ResourceScope.Process)]
public static extern IntPtr LoadLibrary(string libFilename);
[DllImport(ExternDll.Kernel32, CharSet=System.Runtime.InteropServices.CharSet.Unicode, SetLastError=true)]
[ResourceExposure(ResourceScope.Process)]
public static extern bool FreeLibrary(HandleRef hModule);
[DllImport(ExternDll.Kernel32, CharSet=CharSet.Auto, BestFitMapping=false)]
[ResourceExposure(ResourceScope.None)]
public static extern bool GetComputerName(StringBuilder lpBuffer, int[] nSize);
public static unsafe int InterlockedCompareExchange(IntPtr pDestination, int exchange, int compare)
{
return Interlocked.CompareExchange(ref *(int *)pDestination.ToPointer(), exchange, compare);
}
[DllImport(ExternDll.PerfCounter, CharSet=System.Runtime.InteropServices.CharSet.Auto)]
[ResourceExposure(ResourceScope.None)]
public static unsafe extern int FormatFromRawValue(
uint dwCounterType,
uint dwFormat,
ref long pTimeBase,
NativeMethods.PDH_RAW_COUNTER pRawValue1,
NativeMethods.PDH_RAW_COUNTER pRawValue2,
NativeMethods.PDH_FMT_COUNTERVALUE pFmtValue
);
#endif // !FEATURE_PAL
[DllImport(ExternDll.Kernel32, SetLastError = true)]
[ResourceExposure(ResourceScope.None)]
public static extern bool IsWow64Process(SafeProcessHandle hProcess, ref bool Wow64Process);
[StructLayout(LayoutKind.Sequential)]
internal class PROCESS_INFORMATION {
// The handles in PROCESS_INFORMATION are initialized in unmanaged functions.
// We can't use SafeHandle here because Interop doesn't support [out] SafeHandles in structures/classes yet.
public IntPtr hProcess = IntPtr.Zero;
public IntPtr hThread = IntPtr.Zero;
public int dwProcessId = 0;
public int dwThreadId = 0;
// Note this class makes no attempt to free the handles
// Use InitialSetHandle to copy to handles into SafeHandles
}
/* The following code has been removed to prevent FXCOP violations.
The code is left here incase it needs to be resurrected.
// From file src\services\timers\system\timers\safenativemethods.cs
public delegate void TimerAPCProc(IntPtr argToCompletionRoutine, int timerLowValue, int timerHighValue);
*/
#endif // !SILVERLIGHT
#if !SILVERLIGHT || FEATURE_NETCORE
#if FEATURE_NETCORE
[SecurityCritical]
#endif
[DllImport(ExternDll.Kernel32, SetLastError=true, CharSet=CharSet.Auto, BestFitMapping=false)]
[ResourceExposure(ResourceScope.Machine)]
internal static extern SafeWaitHandle CreateSemaphore(NativeMethods.SECURITY_ATTRIBUTES lpSecurityAttributes, int initialCount, int maximumCount, String name);
#if FEATURE_NETCORE
[SecurityCritical]
#endif
[DllImport(ExternDll.Kernel32, SetLastError=true, CharSet=CharSet.Auto, BestFitMapping=false)]
[ResourceExposure(ResourceScope.Machine)]
internal static extern SafeWaitHandle OpenSemaphore(/* DWORD */ int desiredAccess, bool inheritHandle, String name);
#if FEATURE_NETCORE
[SecurityCritical]
#else
[ResourceExposure(ResourceScope.Machine)]
[ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success)]
#endif
[DllImport(ExternDll.Kernel32, SetLastError=true)]
internal static extern bool ReleaseSemaphore(SafeWaitHandle handle, int releaseCount, out int previousCount);
#endif //!SILVERLIGHT || FEATURE_NETCORE
}
}
|