mirror of
https://github.com/mirror/processhacker
synced 2026-06-08 16:03:24 +00:00
wj32
8cfd2f9e17
* performance improvements * stability improvements git-svn-id: svn://svn.code.sf.net/p/processhacker/code@1537 21ef857c-d57f-4fe0-8362-d861dc6d29cd
403 lines
17 KiB
C#
403 lines
17 KiB
C#
using System;
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using System.Runtime.InteropServices;
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using ProcessHacker.Native.Objects;
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using ProcessHacker.Native.Security;
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namespace ProcessHacker.Native.Api
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{
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public static class SystemHandleInformationExtensions
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{
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public static ObjectBasicInformation GetBasicInfo(this SystemHandleInformation thisHandle)
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{
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using (ProcessHandle process = new ProcessHandle(thisHandle.ProcessId, ProcessAccess.DupHandle))
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{
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return thisHandle.GetBasicInfo(process);
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}
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}
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public static ObjectBasicInformation GetBasicInfo(this SystemHandleInformation thisHandle, ProcessHandle process)
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{
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NtStatus status = NtStatus.Success;
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IntPtr handle = new IntPtr(thisHandle.Handle);
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IntPtr objectHandleI;
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GenericHandle objectHandle = null;
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int retLength;
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int baseAddress;
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if (KProcessHacker.Instance == null)
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{
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if ((status = Win32.NtDuplicateObject(
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process, handle, ProcessHandle.GetCurrent(), out objectHandleI, 0, 0, 0)) >= NtStatus.Error)
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Win32.ThrowLastError();
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objectHandle = new GenericHandle(objectHandleI);
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}
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try
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{
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using (var data = new MemoryAlloc(Marshal.SizeOf(typeof(ObjectBasicInformation))))
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{
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if (KProcessHacker.Instance != null)
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{
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KProcessHacker.Instance.ZwQueryObject(process, handle, ObjectInformationClass.ObjectBasicInformation,
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data, data.Size, out retLength, out baseAddress);
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}
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else
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{
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status = Win32.NtQueryObject(objectHandle, ObjectInformationClass.ObjectBasicInformation,
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data, data.Size, out retLength);
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}
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if (status >= NtStatus.Error)
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Win32.ThrowLastError(status);
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return data.ReadStruct<ObjectBasicInformation>();
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}
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}
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finally
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{
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if (objectHandle != null)
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objectHandle.Dispose();
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}
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}
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private static string GetObjectNameNt(ProcessHandle process, IntPtr handle, GenericHandle dupHandle)
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{
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int retLength;
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int baseAddress = 0;
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if (KProcessHacker.Instance != null)
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{
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KProcessHacker.Instance.ZwQueryObject(process, handle, ObjectInformationClass.ObjectNameInformation,
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IntPtr.Zero, 0, out retLength, out baseAddress);
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}
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else
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{
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Win32.NtQueryObject(dupHandle, ObjectInformationClass.ObjectNameInformation,
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IntPtr.Zero, 0, out retLength);
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}
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if (retLength > 0)
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{
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using (MemoryAlloc oniMem = new MemoryAlloc(retLength))
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{
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if (KProcessHacker.Instance != null)
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{
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if (KProcessHacker.Instance.ZwQueryObject(process, handle, ObjectInformationClass.ObjectNameInformation,
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oniMem, oniMem.Size, out retLength, out baseAddress) >= NtStatus.Error)
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throw new Exception("ZwQueryObject failed.");
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}
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else
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{
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if (Win32.NtQueryObject(dupHandle, ObjectInformationClass.ObjectNameInformation,
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oniMem, oniMem.Size, out retLength) >= NtStatus.Error)
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throw new Exception("NtQueryObject failed.");
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}
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var oni = oniMem.ReadStruct<ObjectNameInformation>();
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var str = oni.Name;
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if (KProcessHacker.Instance != null)
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str.Buffer = str.Buffer.Increment(-baseAddress + oniMem);
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return str.Read();
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}
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}
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throw new Exception("NtQueryObject failed.");
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}
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public static ObjectInformation GetHandleInfo(this SystemHandleInformation thisHandle)
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{
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using (ProcessHandle process = new ProcessHandle(thisHandle.ProcessId,
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KProcessHacker.Instance != null ? OSVersion.MinProcessQueryInfoAccess : ProcessAccess.DupHandle))
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{
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return thisHandle.GetHandleInfo(process);
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}
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}
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public static ObjectInformation GetHandleInfo(this SystemHandleInformation thisHandle, ProcessHandle process)
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{
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IntPtr handle = new IntPtr(thisHandle.Handle);
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IntPtr objectHandleI;
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int retLength = 0;
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GenericHandle objectHandle = null;
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if (thisHandle.Handle == 0 || thisHandle.Handle == -1 || thisHandle.Handle == -2)
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throw new WindowsException(6);
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// Duplicate the handle if we're not using KPH
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if (KProcessHacker.Instance == null)
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{
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NtStatus status;
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if ((status = Win32.NtDuplicateObject(
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process, handle, ProcessHandle.GetCurrent(), out objectHandleI, 0, 0, 0)) >= NtStatus.Error)
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Win32.ThrowLastError();
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objectHandle = new GenericHandle(objectHandleI);
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}
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ObjectInformation info = new ObjectInformation();
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// If the cache contains the object type's name, use it. Otherwise, query the type
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// for its name.
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lock (Windows.ObjectTypes)
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{
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if (Windows.ObjectTypes.ContainsKey(thisHandle.ObjectTypeNumber))
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{
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info.TypeName = Windows.ObjectTypes[thisHandle.ObjectTypeNumber];
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}
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else
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{
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int baseAddress = 0;
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if (KProcessHacker.Instance != null)
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{
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KProcessHacker.Instance.ZwQueryObject(process, handle, ObjectInformationClass.ObjectTypeInformation,
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IntPtr.Zero, 0, out retLength, out baseAddress);
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}
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else
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{
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Win32.NtQueryObject(objectHandle, ObjectInformationClass.ObjectTypeInformation,
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IntPtr.Zero, 0, out retLength);
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}
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if (retLength > 0)
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{
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using (MemoryAlloc otiMem = new MemoryAlloc(retLength))
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{
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if (KProcessHacker.Instance != null)
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{
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if (KProcessHacker.Instance.ZwQueryObject(process, handle, ObjectInformationClass.ObjectTypeInformation,
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otiMem, otiMem.Size, out retLength, out baseAddress) >= NtStatus.Error)
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throw new Exception("ZwQueryObject failed.");
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}
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else
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{
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if (Win32.NtQueryObject(objectHandle, ObjectInformationClass.ObjectTypeInformation,
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otiMem, otiMem.Size, out retLength) >= NtStatus.Error)
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throw new Exception("NtQueryObject failed.");
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}
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var oti = otiMem.ReadStruct<ObjectTypeInformation>();
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var str = oti.Name;
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if (KProcessHacker.Instance != null)
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str.Buffer = str.Buffer.Increment(-baseAddress + otiMem);
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info.TypeName = str.Read();
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Windows.ObjectTypes.Add(thisHandle.ObjectTypeNumber, info.TypeName);
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}
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}
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}
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}
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// Get the object's name. If the object is a file we must take special
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// precautions so that we don't hang.
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if (info.TypeName == "File")
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{
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if (KProcessHacker.Instance != null)
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{
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// Use KProcessHacker for files to avoid hangs.
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info.OrigName = KProcessHacker.Instance.GetFileObjectName(thisHandle);
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}
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else
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{
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bool useHack = false;
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// Can't use NPH because XP had a bug where a thread hanging
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// on NtQueryObject couldn't be terminated.
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if (OSVersion.IsBelowOrEqual(WindowsVersion.XP))
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useHack = true;
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if (!useHack)
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{
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try
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{
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// Use NProcessHacker.
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using (MemoryAlloc oniMem = new MemoryAlloc(0x4000))
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{
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if (NProcessHacker.PhQueryNameFileObject(
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objectHandle, oniMem, oniMem.Size, out retLength) >= NtStatus.Error)
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throw new Exception("PhQueryNameFileObject failed.");
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var oni = oniMem.ReadStruct<ObjectNameInformation>();
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info.OrigName = oni.Name.Read();
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}
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}
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catch (DllNotFoundException)
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{
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useHack = true;
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}
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}
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if (useHack)
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{
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// KProcessHacker and NProcessHacker not available. Fall back to using hack
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// (i.e. not querying the name at all if the access is 0x0012019f)
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if ((int)thisHandle.GrantedAccess != 0x0012019f)
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info.OrigName = GetObjectNameNt(process, handle, objectHandle);
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}
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}
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}
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else
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{
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// Not a file. Query the object normally.
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info.OrigName = GetObjectNameNt(process, handle, objectHandle);
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}
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// Get a better name for the handle.
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try
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{
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switch (info.TypeName)
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{
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case "File":
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// Resolves \Device\Harddisk1 into C:, for example.
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if (!string.IsNullOrEmpty(info.OrigName))
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info.BestName = FileUtils.DeviceFileNameToDos(info.OrigName);
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break;
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case "Key":
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const string hklmString = "\\registry\\machine";
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const string hkcrString = "\\registry\\machine\\software\\classes";
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string hkcuString = "\\registry\\user\\" +
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System.Security.Principal.WindowsIdentity.GetCurrent().User.ToString().ToLower();
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string hkcucrString = "\\registry\\user\\" +
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System.Security.Principal.WindowsIdentity.GetCurrent().User.ToString().ToLower() + "_classes";
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const string hkuString = "\\registry\\user";
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if (info.OrigName.ToLower().StartsWith(hkcrString))
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info.BestName = "HKCR" + info.OrigName.Substring(hkcrString.Length);
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else if (info.OrigName.ToLower().StartsWith(hklmString))
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info.BestName = "HKLM" + info.OrigName.Substring(hklmString.Length);
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else if (info.OrigName.ToLower().StartsWith(hkcucrString))
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info.BestName = "HKCU\\Software\\Classes" + info.OrigName.Substring(hkcucrString.Length);
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else if (info.OrigName.ToLower().StartsWith(hkcuString))
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info.BestName = "HKCU" + info.OrigName.Substring(hkcuString.Length);
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else if (info.OrigName.ToLower().StartsWith(hkuString))
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info.BestName = "HKU" + info.OrigName.Substring(hkuString.Length);
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else
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info.BestName = info.OrigName;
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break;
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case "Process":
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{
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int processId;
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if (KProcessHacker.Instance != null)
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{
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processId = KProcessHacker.Instance.KphGetProcessId(process, handle);
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if (processId == 0)
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throw new Exception("Invalid PID");
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}
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else
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{
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using (var processHandle =
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new NativeHandle<ProcessAccess>(process, handle, OSVersion.MinProcessQueryInfoAccess))
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{
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if ((processId = Win32.GetProcessId(processHandle)) == 0)
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Win32.ThrowLastError();
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}
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}
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string processName = Windows.GetProcessName(processId);
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if (processName != null)
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info.BestName = processName + " (" + processId.ToString() + ")";
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else
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info.BestName = "Non-existent process (" + processId.ToString() + ")";
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}
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break;
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case "Thread":
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{
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int processId;
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int threadId;
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if (KProcessHacker.Instance != null)
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{
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threadId = KProcessHacker.Instance.KphGetThreadId(process, handle, out processId);
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if (threadId == 0 || processId == 0)
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throw new Exception("Invalid TID or PID");
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}
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else
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{
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using (var threadHandle =
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new NativeHandle<ThreadAccess>(process, handle, OSVersion.MinThreadQueryInfoAccess))
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{
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var basicInfo = ThreadHandle.FromHandle(threadHandle).GetBasicInformation();
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threadId = basicInfo.ClientId.ThreadId;
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processId = basicInfo.ClientId.ProcessId;
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}
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}
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string processName = Windows.GetProcessName(processId);
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if (processName != null)
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info.BestName = processName + " (" + processId.ToString() + "): " +
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threadId.ToString();
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else
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info.BestName = "Non-existent process (" + processId.ToString() + "): " +
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threadId.ToString();
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}
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break;
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case "Token":
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{
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using (var tokenHandleDup =
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new NativeHandle<TokenAccess>(process, handle, TokenAccess.Query))
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{
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var tokenHandle = TokenHandle.FromHandle(tokenHandleDup);
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var sid = tokenHandle.GetUser();
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using (sid)
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info.BestName = sid.GetFullName(true) + ": 0x" +
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tokenHandle.GetStatistics().AuthenticationId.ToString();
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}
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}
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break;
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default:
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if (info.OrigName != null &&
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info.OrigName != "")
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{
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info.BestName = info.OrigName;
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}
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else
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{
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info.BestName = null;
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}
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break;
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}
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}
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catch
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{
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if (info.OrigName != null && info.OrigName != "")
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{
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info.BestName = info.OrigName;
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}
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else
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{
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info.BestName = null;
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}
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}
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if (objectHandle != null)
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objectHandle.Dispose();
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return info;
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}
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}
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}
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