private static Int32 ResolveReparsePoints(
IntPtr FileSystemPtr,
String FileName,
UInt32 ReparsePointIndex,
Boolean ResolveLastPathComponent,
out IoStatusBlock PIoStatus,
IntPtr Buffer,
IntPtr PSize)
{
FileSystemBase FileSystem = (FileSystemBase)Api.GetUserContext(FileSystemPtr);
try
{
return(FileSystem.ResolveReparsePoints(
FileName,
ReparsePointIndex,
ResolveLastPathComponent,
out PIoStatus,
Buffer,
PSize));
}
catch (Exception ex)
{
PIoStatus = default(IoStatusBlock);
return(ExceptionHandler(FileSystem, ex));
}
}
/// <summary>
/// Resolves reparse points.
/// </summary>
public virtual Int32 ResolveReparsePoints(
String FileName,
UInt32 ReparsePointIndex,
Boolean ResolveLastPathComponent,
out IoStatusBlock IoStatus,
IntPtr Buffer,
IntPtr PSize)
{
GCHandle Handle = GCHandle.Alloc(this, GCHandleType.Normal);
try
{
return(Api.FspFileSystemResolveReparsePoints(
IntPtr.Zero,
GetReparsePointByName,
(IntPtr)Handle,
FileName,
ReparsePointIndex,
ResolveLastPathComponent,
out IoStatus,
Buffer,
PSize));
}
finally
{
Handle.Free();
}
}
public static extern int NtOpenFile(
out IntPtr FileHandle,
FileAccessRights DesiredAccess,
ObjectAttributes ObjAttr,
[In][Out] IoStatusBlock IoStatusBlock,
ShareMode ShareAccess,
FileOpenOptions OpenOptions);
public static extern int NtDeviceIoControlFile(
SafeFileHandle FileHandle,
IntPtr Event,
IntPtr ApcRoutine,
IntPtr ApcContext,
[In][Out] IoStatusBlock IoStatusBlock,
uint IoControlCode,
SafeHGlobalBuffer InputBuffer,
int InputBufferLength,
SafeHGlobalBuffer OutputBuffer,
int OutputBufferLength
);
public bool Remove(out IoStatusBlock isb, out IntPtr keyContext, out IntPtr apcContext, long timeout, bool relative)
{
NtStatus status;
long realTimeout = relative ? -timeout : timeout;
if ((status = Win32.NtRemoveIoCompletion(
this, out keyContext, out apcContext, out isb, ref realTimeout)) >= NtStatus.Error)
{
Win32.Throw(status);
}
return(status != NtStatus.Timeout);
}
static T DeviceIoControl <T>(SafeFileHandle FileHandle, uint IoControlCode, object input_buffer)
{
using (SafeStructureOutBuffer <T> output = new SafeStructureOutBuffer <T>())
{
using (SafeStructureBuffer input = new SafeStructureBuffer(input_buffer))
{
IoStatusBlock status = new IoStatusBlock();
StatusToNtException(NtDeviceIoControlFile(FileHandle, IntPtr.Zero, IntPtr.Zero,
IntPtr.Zero, status, IoControlCode, input, input.Length,
output, output.Length));
return(output.Result);
}
}
}
public static SafeFileHandle OpenFile(string name, FileAccessRights DesiredAccess, ShareMode ShareAccess, FileOpenOptions OpenOptions, bool inherit)
{
AttributeFlags flags = AttributeFlags.CaseInsensitive;
if (inherit)
{
flags |= AttributeFlags.Inherit;
}
using (ObjectAttributes obja = new ObjectAttributes(name, flags))
{
IntPtr handle;
IoStatusBlock iostatus = new IoStatusBlock();
StatusToNtException(NtOpenFile(out handle, DesiredAccess, obja, iostatus, ShareAccess, OpenOptions));
return(new SafeFileHandle(handle, true));
}
}
public static extern NtStatus NtFsControlFile([In] IntPtr fileHandle, [In, Optional] IntPtr Event, [In, Optional] IntPtr apcRoutine, [In, Optional] IntPtr apcContext, [Out] out IoStatusBlock ioStatusBlock, [In] uint fsControlCode, [In, Optional] IntPtr inputBuffer, [In] uint inputBufferLength, [Out, Optional] IntPtr outputBuffer, [In] uint outputBufferLength);
public bool Remove(out IoStatusBlock isb, out IntPtr keyContext, out IntPtr apcContext, long timeout, bool relative)
{
long realTimeout = relative ? -timeout : timeout;
return(Win32.NtRemoveIoCompletion(this, out keyContext, out apcContext, out isb, ref realTimeout) != NtStatus.Timeout);
}
public bool Remove(out IoStatusBlock isb, out IntPtr keyContext, out IntPtr apcContext, long timeout)
{
return(this.Remove(out isb, out keyContext, out apcContext, timeout, true));
}
private static extern int NtQueryInformationFile(IntPtr fileHandle, ref IoStatusBlock ioStatusBlock, IntPtr fileInformation, int length, int fileInformationClass);
private static extern int NtCreateFile(ref IntPtr fileHandle, int desiredAccess, ref ObjectAttributes objectAttributes, ref IoStatusBlock ioStatusBlock, int allocationSize, int fileAttribs, int sharedAccess, int creationDisposition, int createOptions, int eaBuffer,
int eaLength);
