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// ==++==
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// ==--==
/*============================================================
**
** Class: UnsafeNativeMethods
**
============================================================*/
namespace Microsoft.Win32 {
using Microsoft.Win32;
using Microsoft.Win32.SafeHandles;
using System;
using System.Runtime.CompilerServices;
using System.Runtime.ConstrainedExecution;
using System.Runtime.InteropServices;
using System.Runtime.Serialization;
using System.Runtime.Versioning;
using System.Security;
using System.Security.Permissions;
using System.Text;
using System.Diagnostics.Tracing;
[System.Security.SecurityCritical] // auto-generated
[SuppressUnmanagedCodeSecurityAttribute()]
internal static class UnsafeNativeMethods {
[DllImport(Win32Native.KERNEL32, EntryPoint="GetTimeZoneInformation", SetLastError = true, ExactSpelling = true)]
[ResourceExposure(ResourceScope.None)]
internal static extern int GetTimeZoneInformation(out Win32Native.TimeZoneInformation lpTimeZoneInformation);
[DllImport(Win32Native.KERNEL32, EntryPoint="GetDynamicTimeZoneInformation", SetLastError = true, ExactSpelling = true)]
[ResourceExposure(ResourceScope.None)]
internal static extern int GetDynamicTimeZoneInformation(out Win32Native.DynamicTimeZoneInformation lpDynamicTimeZoneInformation);
//
// BOOL GetFileMUIPath(
// DWORD dwFlags,
// PCWSTR pcwszFilePath,
// PWSTR pwszLanguage,
// PULONG pcchLanguage,
// PWSTR pwszFileMUIPath,
// PULONG pcchFileMUIPath,
// PULONGLONG pululEnumerator
// );
//
[DllImport(Win32Native.KERNEL32, EntryPoint="GetFileMUIPath", SetLastError = true, ExactSpelling = true)]
[ResourceExposure(ResourceScope.Machine)]
[return: MarshalAs(UnmanagedType.Bool)]
internal static extern bool GetFileMUIPath(
int flags,
[MarshalAs(UnmanagedType.LPWStr)]
String filePath,
[MarshalAs(UnmanagedType.LPWStr)]
StringBuilder language,
ref int languageLength,
[MarshalAs(UnmanagedType.LPWStr)]
StringBuilder fileMuiPath,
ref int fileMuiPathLength,
ref Int64 enumerator);
[DllImport(Win32Native.USER32, EntryPoint="LoadStringW", SetLastError=true, CharSet=CharSet.Unicode, ExactSpelling=true, CallingConvention=CallingConvention.StdCall)]
[ResourceExposure(ResourceScope.Process)]
internal static extern int LoadString(SafeLibraryHandle handle, int id, StringBuilder buffer, int bufferLength);
[DllImport(Win32Native.KERNEL32, CharSet=System.Runtime.InteropServices.CharSet.Unicode, SetLastError=true)]
[ResourceExposure(ResourceScope.Machine)]
internal static extern SafeLibraryHandle LoadLibraryEx(string libFilename, IntPtr reserved, int flags);
[DllImport(Win32Native.KERNEL32, CharSet=System.Runtime.InteropServices.CharSet.Unicode)]
[return: MarshalAs(UnmanagedType.Bool)]
[ResourceExposure(ResourceScope.None)]
[ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success)]
internal static extern bool FreeLibrary(IntPtr hModule);
[SecurityCritical]
[SuppressUnmanagedCodeSecurityAttribute()]
internal static unsafe class ManifestEtw
{
//
// Constants error coded returned by ETW APIs
//
// The event size is larger than the allowed maximum (64k - header).
internal const int ERROR_ARITHMETIC_OVERFLOW = 534;
// Occurs when filled buffers are trying to flush to disk,
// but disk IOs are not happening fast enough.
// This happens when the disk is slow and event traffic is heavy.
// Eventually, there are no more free (empty) buffers and the event is dropped.
internal const int ERROR_NOT_ENOUGH_MEMORY = 8;
internal const int ERROR_MORE_DATA = 0xEA;
internal const int ERROR_NOT_SUPPORTED = 50;
internal const int ERROR_INVALID_PARAMETER = 0x57;
//
// ETW Methods
//
internal const int EVENT_CONTROL_CODE_DISABLE_PROVIDER = 0;
internal const int EVENT_CONTROL_CODE_ENABLE_PROVIDER = 1;
internal const int EVENT_CONTROL_CODE_CAPTURE_STATE = 2;
//
// Callback
//
[SecurityCritical]
internal unsafe delegate void EtwEnableCallback(
[In] ref Guid sourceId,
[In] int isEnabled,
[In] byte level,
[In] long matchAnyKeywords,
[In] long matchAllKeywords,
[In] EVENT_FILTER_DESCRIPTOR* filterData,
[In] void* callbackContext
);
//
// Registration APIs
//
[SecurityCritical]
[DllImport(Win32Native.ADVAPI32, ExactSpelling = true, EntryPoint = "EventRegister", CharSet = System.Runtime.InteropServices.CharSet.Unicode)]
internal static extern unsafe uint EventRegister(
[In] ref Guid providerId,
[In]EtwEnableCallback enableCallback,
[In]void* callbackContext,
[In][Out]ref long registrationHandle
);
//
[SecurityCritical]
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Security", "CA2118:ReviewSuppressUnmanagedCodeSecurityUsage")]
[DllImport(Win32Native.ADVAPI32, ExactSpelling = true, EntryPoint = "EventUnregister", CharSet = System.Runtime.InteropServices.CharSet.Unicode)]
internal static extern uint EventUnregister([In] long registrationHandle);
//
// Writing (Publishing/Logging) APIs
//
//
[SecurityCritical]
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Security", "CA2118:ReviewSuppressUnmanagedCodeSecurityUsage")]
[DllImport(Win32Native.ADVAPI32, ExactSpelling = true, EntryPoint = "EventWrite", CharSet = System.Runtime.InteropServices.CharSet.Unicode)]
internal static extern unsafe int EventWrite(
[In] long registrationHandle,
[In] ref EventDescriptor eventDescriptor,
[In] int userDataCount,
[In] EventProvider.EventData* userData
);
[SecurityCritical]
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Security", "CA2118:ReviewSuppressUnmanagedCodeSecurityUsage")]
[DllImport(Win32Native.ADVAPI32, ExactSpelling = true, EntryPoint = "EventWriteString", CharSet = System.Runtime.InteropServices.CharSet.Unicode)]
internal static extern unsafe int EventWriteString(
[In] long registrationHandle,
[In] byte level,
[In] long keyword,
[In] string msg
);
[StructLayout(LayoutKind.Sequential)]
unsafe internal struct EVENT_FILTER_DESCRIPTOR
{
public long Ptr;
public int Size;
public int Type;
};
/// <summary>
/// Call the ETW native API EventWriteTransfer and checks for invalid argument error.
/// The implementation of EventWriteTransfer on some older OSes (Windows 2008) does not accept null relatedActivityId.
/// So, for these cases we will retry the call with an empty Guid.
/// </summary>
internal static int EventWriteTransferWrapper(long registrationHandle,
ref EventDescriptor eventDescriptor,
Guid* activityId,
Guid* relatedActivityId,
int userDataCount,
EventProvider.EventData* userData)
{
int HResult = EventWriteTransfer(registrationHandle, ref eventDescriptor, activityId, relatedActivityId, userDataCount, userData);
if (HResult == ERROR_INVALID_PARAMETER && relatedActivityId == null)
{
Guid emptyGuid = Guid.Empty;
HResult = EventWriteTransfer(registrationHandle, ref eventDescriptor, activityId, &emptyGuid, userDataCount, userData);
}
return HResult;
}
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Security", "CA2118:ReviewSuppressUnmanagedCodeSecurityUsage")]
[DllImport(Win32Native.ADVAPI32, ExactSpelling = true, EntryPoint = "EventWriteTransfer", CharSet = System.Runtime.InteropServices.CharSet.Unicode)]
[SuppressUnmanagedCodeSecurityAttribute] // Don't do security checks
private static extern int EventWriteTransfer(
[In] long registrationHandle,
[In] ref EventDescriptor eventDescriptor,
[In] Guid* activityId,
[In] Guid* relatedActivityId,
[In] int userDataCount,
[In] EventProvider.EventData* userData
);
internal enum ActivityControl : uint
{
EVENT_ACTIVITY_CTRL_GET_ID = 1,
EVENT_ACTIVITY_CTRL_SET_ID = 2,
EVENT_ACTIVITY_CTRL_CREATE_ID = 3,
EVENT_ACTIVITY_CTRL_GET_SET_ID = 4,
EVENT_ACTIVITY_CTRL_CREATE_SET_ID = 5
};
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Security", "CA2118:ReviewSuppressUnmanagedCodeSecurityUsage")]
[DllImport(Win32Native.ADVAPI32, ExactSpelling = true, EntryPoint = "EventActivityIdControl", CharSet = System.Runtime.InteropServices.CharSet.Unicode)]
[SuppressUnmanagedCodeSecurityAttribute] // Don't do security checks
internal static extern int EventActivityIdControl([In] ActivityControl ControlCode, [In][Out] ref Guid ActivityId);
internal enum EVENT_INFO_CLASS
{
BinaryTrackInfo,
SetEnableAllKeywords,
SetTraits,
}
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Security", "CA2118:ReviewSuppressUnmanagedCodeSecurityUsage")]
[DllImport(Win32Native.ADVAPI32, ExactSpelling = true, EntryPoint = "EventSetInformation", CharSet = System.Runtime.InteropServices.CharSet.Unicode)]
[SuppressUnmanagedCodeSecurityAttribute] // Don't do security checks
internal static extern int EventSetInformation(
[In] long registrationHandle,
[In] EVENT_INFO_CLASS informationClass,
[In] void* eventInformation,
[In] int informationLength);
// Support for EnumerateTraceGuidsEx
internal enum TRACE_QUERY_INFO_CLASS
{
TraceGuidQueryList,
TraceGuidQueryInfo,
TraceGuidQueryProcess,
TraceStackTracingInfo,
MaxTraceSetInfoClass
};
internal struct TRACE_GUID_INFO
{
public int InstanceCount;
public int Reserved;
};
internal struct TRACE_PROVIDER_INSTANCE_INFO
{
public int NextOffset;
public int EnableCount;
public int Pid;
public int Flags;
};
internal struct TRACE_ENABLE_INFO
{
public int IsEnabled;
public byte Level;
public byte Reserved1;
public ushort LoggerId;
public int EnableProperty;
public int Reserved2;
public long MatchAnyKeyword;
public long MatchAllKeyword;
};
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Security", "CA2118:ReviewSuppressUnmanagedCodeSecurityUsage")]
[DllImport(Win32Native.ADVAPI32, ExactSpelling = true, EntryPoint = "EnumerateTraceGuidsEx", CharSet = System.Runtime.InteropServices.CharSet.Unicode)]
[SuppressUnmanagedCodeSecurityAttribute] // Don't do security checks
internal static extern int EnumerateTraceGuidsEx(
TRACE_QUERY_INFO_CLASS TraceQueryInfoClass,
void* InBuffer,
int InBufferSize,
void* OutBuffer,
int OutBufferSize,
ref int ReturnLength);
}
#if FEATURE_COMINTEROP
[SecurityCritical]
[DllImport("combase.dll", PreserveSig = true)]
internal static extern int RoGetActivationFactory(
[MarshalAs(UnmanagedType.HString)] string activatableClassId,
[In] ref Guid iid,
[Out,MarshalAs(UnmanagedType.IInspectable)] out Object factory);
#endif
}
}
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