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DokanOperationProxy.cs
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DokanOperationProxy.cs
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#if !(NET10 || NET11 || NET20 || NET30 || NET35 || NET40 )
#define NET45_OR_GREATER
#endif
#if NET45_OR_GREATER && !(NET45 )
#define NET451_OR_GREATER
#endif
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Diagnostics.Contracts;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
using System.Security.AccessControl;
using System.Text;
using DokanNet.Logging;
using DokanNet.Native;
using FILETIME = System.Runtime.InteropServices.ComTypes.FILETIME;
namespace DokanNet
{
/// <summary>
/// The dokan operation proxy.
/// </summary>
internal sealed class DokanOperationProxy
{
#region Delegates
public delegate NtStatus ZwCreateFileDelegate(
[MarshalAs(UnmanagedType.LPWStr)] string rawFileName,
IntPtr securityContext,
uint rawDesiredAccess,
uint rawFileAttributes,
uint rawShareAccess,
uint rawCreateDisposition,
uint rawCreateOptions,
[MarshalAs(UnmanagedType.LPStruct), In, Out] DokanFileInfo dokanFileInfo);
public delegate void CleanupDelegate(
[MarshalAs(UnmanagedType.LPWStr)] string rawFileName,
[MarshalAs(UnmanagedType.LPStruct), In, Out] DokanFileInfo rawFileInfo);
public delegate void CloseFileDelegate(
[MarshalAs(UnmanagedType.LPWStr)] string rawFileName,
[MarshalAs(UnmanagedType.LPStruct), In, Out] DokanFileInfo rawFileInfo);
public delegate NtStatus ReadFileDelegate(
[MarshalAs(UnmanagedType.LPWStr)] string rawFileName,
IntPtr rawBuffer,
uint rawBufferLength,
ref int rawReadLength,
long rawOffset,
[MarshalAs(UnmanagedType.LPStruct), In /*, Out*/] DokanFileInfo rawFileInfo);
public delegate NtStatus WriteFileDelegate(
[MarshalAs(UnmanagedType.LPWStr)] string rawFileName,
IntPtr rawBuffer,
uint rawNumberOfBytesToWrite,
ref int rawNumberOfBytesWritten,
long rawOffset,
[MarshalAs(UnmanagedType.LPStruct), In /*, Out*/] DokanFileInfo rawFileInfo);
public delegate NtStatus FlushFileBuffersDelegate(
[MarshalAs(UnmanagedType.LPWStr)] string rawFileName,
[MarshalAs(UnmanagedType.LPStruct), In /*, Out*/] DokanFileInfo rawFileInfo);
public delegate NtStatus GetFileInformationDelegate(
[MarshalAs(UnmanagedType.LPWStr)] string fileName,
ref BY_HANDLE_FILE_INFORMATION handleFileInfo,
[MarshalAs(UnmanagedType.LPStruct), In /*, Out*/] DokanFileInfo fileInfo);
public delegate NtStatus FindFilesDelegate(
[MarshalAs(UnmanagedType.LPWStr)] string rawFileName,
IntPtr rawFillFindData,
[MarshalAs(UnmanagedType.LPStruct), In /*, Out*/] DokanFileInfo rawFileInfo);
public delegate NtStatus FindFilesWithPatternDelegate(
[MarshalAs(UnmanagedType.LPWStr)] string rawFileName,
[MarshalAs(UnmanagedType.LPWStr)] string rawSearchPattern,
IntPtr rawFillFindData,
[MarshalAs(UnmanagedType.LPStruct), In, Out] DokanFileInfo rawFileInfo);
public delegate NtStatus SetFileAttributesDelegate(
[MarshalAs(UnmanagedType.LPWStr)] string rawFileName,
uint rawAttributes,
[MarshalAs(UnmanagedType.LPStruct), In /*, Out*/] DokanFileInfo rawFileInfo);
public delegate NtStatus SetFileTimeDelegate(
[MarshalAs(UnmanagedType.LPWStr)] string rawFileName,
ref FILETIME rawCreationTime,
ref FILETIME rawLastAccessTime,
ref FILETIME rawLastWriteTime,
[MarshalAs(UnmanagedType.LPStruct), In /*, Out*/] DokanFileInfo rawFileInfo);
public delegate NtStatus DeleteFileDelegate(
[MarshalAs(UnmanagedType.LPWStr)] string rawFileName,
[MarshalAs(UnmanagedType.LPStruct), In /*, Out*/] DokanFileInfo rawFileInfo);
public delegate NtStatus DeleteDirectoryDelegate(
[MarshalAs(UnmanagedType.LPWStr)] string rawFileName,
[MarshalAs(UnmanagedType.LPStruct), In /*, Out*/] DokanFileInfo rawFileInfo);
public delegate NtStatus MoveFileDelegate(
[MarshalAs(UnmanagedType.LPWStr)] string rawFileName,
[MarshalAs(UnmanagedType.LPWStr)] string rawNewFileName,
[MarshalAs(UnmanagedType.Bool)] bool rawReplaceIfExisting,
[MarshalAs(UnmanagedType.LPStruct), In, Out] DokanFileInfo rawFileInfo);
public delegate NtStatus SetEndOfFileDelegate(
[MarshalAs(UnmanagedType.LPWStr)] string rawFileName, long rawByteOffset,
[MarshalAs(UnmanagedType.LPStruct), In /*, Out*/] DokanFileInfo rawFileInfo);
public delegate NtStatus SetAllocationSizeDelegate(
[MarshalAs(UnmanagedType.LPWStr)] string rawFileName, long rawLength,
[MarshalAs(UnmanagedType.LPStruct), In /*, Out*/] DokanFileInfo rawFileInfo);
public delegate NtStatus LockFileDelegate(
[MarshalAs(UnmanagedType.LPWStr)] string rawFileName, long rawByteOffset, long rawLength,
[MarshalAs(UnmanagedType.LPStruct), In /*, Out*/] DokanFileInfo rawFileInfo);
public delegate NtStatus UnlockFileDelegate(
[MarshalAs(UnmanagedType.LPWStr)] string rawFileName, long rawByteOffset, long rawLength,
[MarshalAs(UnmanagedType.LPStruct), In /*, Out*/] DokanFileInfo rawFileInfo);
public delegate NtStatus GetDiskFreeSpaceDelegate(
ref long rawFreeBytesAvailable, ref long rawTotalNumberOfBytes, ref long rawTotalNumberOfFreeBytes,
[MarshalAs(UnmanagedType.LPStruct), In] DokanFileInfo rawFileInfo);
public delegate NtStatus GetVolumeInformationDelegate(
[MarshalAs(UnmanagedType.LPWStr)] StringBuilder rawVolumeNameBuffer,
uint rawVolumeNameSize,
ref uint rawVolumeSerialNumber,
ref uint rawMaximumComponentLength,
ref FileSystemFeatures rawFileSystemFlags,
[MarshalAs(UnmanagedType.LPWStr)] StringBuilder rawFileSystemNameBuffer,
uint rawFileSystemNameSize,
[MarshalAs(UnmanagedType.LPStruct), In] DokanFileInfo rawFileInfo);
public delegate NtStatus GetFileSecurityDelegate(
[MarshalAs(UnmanagedType.LPWStr)] string rawFileName,
[In] ref SECURITY_INFORMATION rawRequestedInformation,
IntPtr rawSecurityDescriptor,
uint rawSecurityDescriptorLength,
ref uint rawSecurityDescriptorLengthNeeded,
[MarshalAs(UnmanagedType.LPStruct), In /*, Out*/] DokanFileInfo rawFileInfo);
public delegate NtStatus SetFileSecurityDelegate(
[MarshalAs(UnmanagedType.LPWStr)] string rawFileName,
[In] ref SECURITY_INFORMATION rawSecurityInformation,
IntPtr rawSecurityDescriptor,
uint rawSecurityDescriptorLength,
[MarshalAs(UnmanagedType.LPStruct), In /*, Out*/] DokanFileInfo rawFileInfo);
public delegate NtStatus FindStreamsDelegate(
[MarshalAs(UnmanagedType.LPWStr)] string rawFileName,
IntPtr rawFillFindData,
IntPtr findStreamContext,
[MarshalAs(UnmanagedType.LPStruct), In /*, Out*/] DokanFileInfo rawFileInfo);
public delegate NtStatus MountedDelegate(
[MarshalAs(UnmanagedType.LPWStr)] string rawFileName,
[MarshalAs(UnmanagedType.LPStruct), In] DokanFileInfo rawFileInfo);
public delegate NtStatus UnmountedDelegate(
[MarshalAs(UnmanagedType.LPStruct), In] DokanFileInfo rawFileInfo);
#endregion Delegates
private readonly IDokanOperations operations;
private readonly ILogger logger;
private readonly uint serialNumber;
#region Enum masks
/// <summary>
/// To be used to mask out the <see cref="FileOptions"/> flags from what is returned
/// from <see cref="Native.NativeMethods.DokanMapKernelToUserCreateFileFlags"/>.
/// </summary>
private const int FileOptionsMask =
(int)
( FileOptions.Asynchronous | FileOptions.DeleteOnClose | FileOptions.Encrypted
| FileOptions.None | FileOptions.RandomAccess | FileOptions.SequentialScan
| FileOptions.WriteThrough);
/// <summary>
/// To be used to mask out the <see cref="FileAttributes"/> flags from what is returned
/// from <see cref="Native.NativeMethods.DokanMapKernelToUserCreateFileFlags"/>.
/// Note that some flags where introduces in .NET Framework 4.5, and is not supported
/// in .NET Framework 4.
/// </summary>
private const int FileAttributeMask =
(int)
( FileAttributes.ReadOnly | FileAttributes.Hidden | FileAttributes.System
| FileAttributes.Directory | FileAttributes.Archive | FileAttributes.Device
| FileAttributes.Normal | FileAttributes.Temporary | FileAttributes.SparseFile
| FileAttributes.ReparsePoint | FileAttributes.Compressed | FileAttributes.Offline
| FileAttributes.NotContentIndexed | FileAttributes.Encrypted
#if NET45_OR_GREATER
| FileAttributes.IntegrityStream | FileAttributes.NoScrubData
#endif
);
/// <summary>
/// To be used to mask out the <see cref="FileAccess"/> flags.
/// </summary>
private const long FileAccessMask =
(uint)
( FileAccess.ReadData | FileAccess.WriteData | FileAccess.AppendData
| FileAccess.ReadExtendedAttributes | FileAccess.WriteExtendedAttributes | FileAccess.Execute
| FileAccess.DeleteChild | FileAccess.ReadAttributes | FileAccess.WriteAttributes
| FileAccess.Delete | FileAccess.ReadPermissions | FileAccess.ChangePermissions
| FileAccess.SetOwnership | FileAccess.Synchronize | FileAccess.AccessSystemSecurity
| FileAccess.MaximumAllowed | FileAccess.GenericAll | FileAccess.GenericExecute
| FileAccess.GenericWrite | FileAccess.GenericRead);
/// <summary>
/// To be used to mask out the <see cref="FileShare"/> flags.
/// </summary>
private const int FileShareMask =
(int)
( FileShare.ReadWrite | FileShare.Delete | FileShare.Inheritable);
#endregion
/// <summary>
/// Initializes a new instance of the <see cref="DokanOperationProxy"/> class.
/// </summary>
/// <param name="operations">
/// A <see cref="IDokanOperations"/> that contains the custom implementation of the driver.
/// </param>
/// <param name="logger">
/// A <see cref="ILogger"/> that handle all logging.
/// </param>
public DokanOperationProxy(ILogger logger, IDokanOperations operations)
{
this.logger = logger;
this.operations = operations;
serialNumber = (uint)operations.GetHashCode();
}
/// <summary>
/// CreateFile is called each time a request is made on a file system object.
///
/// In case <see cref="FileMode.OpenOrCreate"/> and
/// <see cref="FileMode.Create"/> are opening successfully a already
/// existing file, you have to return <see cref="DokanResult.AlreadyExists"/> instead of <see cref="NtStatus.Success"/>.
///
/// If the file is a directory, CreateFile is also called.
/// In this case, CreateFile should return <see cref="NtStatus.Success"/> when that directory
/// can be opened and <see cref="DokanFileInfo.IsDirectory"/> has to be set to <c>true</c>.
///
/// <see cref="DokanFileInfo.Context"/> can be used to store data (like <see cref="FileStream"/>)
/// that can be retrieved in all other request related to the context.
/// </summary>
/// <param name="rawFileName">File path requested by the Kernel on the FileSystem.</param>
/// <param name="securityContext">SecurityContext, see <a href="https://msdn.microsoft.com/en-us/library/windows/hardware/ff550613(v=vs.85).aspx">IO_SECURITY_CONTEXT structure (MSDN)</a>.</param>
/// <param name="rawDesiredAccess">Specifies an <a href="https://msdn.microsoft.com/en-us/library/windows/hardware/ff540466(v=vs.85).aspx">ACCESS_MASK (MSDN)</a> value that determines the requested access to the object.</param>
/// <param name="rawFileAttributes">Specifies one or more FILE_ATTRIBUTE_XXX flags, which represent the file attributes to set if you create or overwrite a file.</param>
/// <param name="rawShareAccess">Type of share access, which is specified as zero or any combination of <see cref="FileShare"/>.</param>
/// <param name="rawCreateDisposition">Specifies the action to perform if the file does or does not exist.</param>
/// <param name="rawCreateOptions">Specifies the options to apply when the driver creates or opens the file.</param>
/// <param name="rawFileInfo">>An <see cref="DokanFileInfo"/> with information about the file or directory.</param>
/// <returns>The <see cref="NtStatus"/>.</returns>
/// \see <a href="https://msdn.microsoft.com/en-us/library/windows/hardware/ff566424(v=vs.85).aspx">ZwCreateFile routine (MSDN)</a>
/// <see cref="DokanNet.IDokanOperations.CreateFile"/>
public NtStatus ZwCreateFileProxy(
string rawFileName,
IntPtr securityContext,
uint rawDesiredAccess,
uint rawFileAttributes,
uint rawShareAccess,
uint rawCreateDisposition,
uint rawCreateOptions,
DokanFileInfo rawFileInfo)
{
try
{
var fileAttributesAndFlags = 0;
var creationDisposition = 0;
var outDesiredAccess = 0u;
NativeMethods.DokanMapKernelToUserCreateFileFlags(
rawDesiredAccess,
rawFileAttributes,
rawCreateOptions,
rawCreateDisposition,
ref outDesiredAccess,
ref fileAttributesAndFlags,
ref creationDisposition);
var fileAttributes = (FileAttributes)(fileAttributesAndFlags & FileAttributeMask);
var fileOptions = (FileOptions )(fileAttributesAndFlags & FileOptionsMask);
var desiredAccess = (FileAccess )(outDesiredAccess & FileAccessMask);
var shareAccess = (FileShare )(rawShareAccess & FileShareMask);
if (logger.DebugEnabled)
{
logger.Debug("CreateFileProxy : {0}", rawFileName);
logger.Debug("\tCreationDisposition\t{0}", (FileMode)creationDisposition);
logger.Debug("\tFileAccess\t{0}", (FileAccess)rawDesiredAccess);
logger.Debug("\tFileShare\t{0}", (FileShare)rawShareAccess);
logger.Debug("\tFileOptions\t{0}", fileOptions);
logger.Debug("\tFileAttributes\t{0}", fileAttributes);
logger.Debug("\tContext\t{0}", rawFileInfo);
}
var result = operations.CreateFile(
rawFileName,
desiredAccess,
shareAccess,
(FileMode)creationDisposition,
fileOptions,
fileAttributes,
rawFileInfo);
if (logger.DebugEnabled) logger.Debug("CreateFileProxy : {0} Return : {1}", rawFileName, result);
return result;
}
catch (Exception ex)
{
logger.Error("CreateFileProxy : {0} Throw : {1}", rawFileName, ex.Message);
return DokanResult.Unsuccessful;
}
}
////
public void CleanupProxy(string rawFileName, DokanFileInfo rawFileInfo)
{
try
{
if (logger.DebugEnabled)
{
logger.Debug("CleanupProxy : {0}", rawFileName);
logger.Debug("\tContext\t{0}", rawFileInfo);
}
operations.Cleanup(rawFileName, rawFileInfo);
if (logger.DebugEnabled) logger.Debug("CleanupProxy : {0}", rawFileName);
}
catch (Exception ex)
{
logger.Error("CleanupProxy : {0} Throw : {1}", rawFileName, ex.Message);
}
}
////
public void CloseFileProxy(string rawFileName, DokanFileInfo rawFileInfo)
{
try
{
if (logger.DebugEnabled)
{
logger.Debug("CloseFileProxy : {0}", rawFileName);
logger.Debug("\tContext\t{0}", rawFileInfo);
}
operations.CloseFile(rawFileName, rawFileInfo);
if (logger.DebugEnabled) logger.Debug("CloseFileProxy : {0}", rawFileName);
}
catch (Exception ex)
{
logger.Error("CloseFileProxy : {0} Throw : {1}", rawFileName, ex.Message);
}
finally
{
rawFileInfo.Context = null;
}
}
////
public NtStatus ReadFileProxy(
string rawFileName,
IntPtr rawBuffer,
uint rawBufferLength,
ref int rawReadLength,
long rawOffset,
DokanFileInfo rawFileInfo)
{
try
{
if (logger.DebugEnabled)
{
logger.Debug("ReadFileProxy : {0}", rawFileName);
logger.Debug("\tBufferLength\t{0}", rawBufferLength);
logger.Debug("\tOffset\t{0}", rawOffset);
logger.Debug("\tContext\t{0}", rawFileInfo);
}
// Check if the file system has implemented the unsafe Dokan interface.
// If so, pass the raw IntPtr through instead of marshalling.
NtStatus result;
if (operations is IDokanOperationsUnsafe unsafeOperations)
{
result = unsafeOperations.ReadFile(rawFileName, rawBuffer, rawBufferLength, out rawReadLength, rawOffset, rawFileInfo);
}
else
{
// Pool the read buffer and return it to the pool when we're done with it.
byte[] buffer = BufferPool.Default.RentBuffer(rawBufferLength, logger);
try
{
result = operations.ReadFile(rawFileName, buffer, out rawReadLength, rawOffset, rawFileInfo);
Marshal.Copy(buffer, 0, rawBuffer, rawReadLength);
}
finally
{
BufferPool.Default.ReturnBuffer(buffer, logger);
}
}
if (logger.DebugEnabled) logger.Debug("ReadFileProxy : {0} Return : {1} ReadLength : {2}", rawFileName, result, rawReadLength);
return result;
}
catch (Exception ex)
{
logger.Error("ReadFileProxy : {0} Throw : {1}", rawFileName, ex.Message);
return DokanResult.InvalidParameter;
}
}
////
public NtStatus WriteFileProxy(
string rawFileName,
IntPtr rawBuffer,
uint rawNumberOfBytesToWrite,
ref int rawNumberOfBytesWritten,
long rawOffset,
DokanFileInfo rawFileInfo)
{
try
{
if (logger.DebugEnabled)
{
logger.Debug("WriteFileProxy : {0}", rawFileName);
logger.Debug("\tNumberOfBytesToWrite\t{0}", rawNumberOfBytesToWrite);
logger.Debug("\tOffset\t{0}", rawOffset);
logger.Debug("\tContext\t{0}", rawFileInfo);
}
// Check if the file system has implemented the unsafe Dokan interface.
// If so, pass the raw IntPtr through instead of marshalling.
NtStatus result;
if (operations is IDokanOperationsUnsafe unsafeOperations)
{
result = unsafeOperations.WriteFile(rawFileName, rawBuffer, rawNumberOfBytesToWrite, out rawNumberOfBytesWritten, rawOffset, rawFileInfo);
}
else
{
// Pool the write buffer and return it to the pool when we're done with it.
byte[] buffer = BufferPool.Default.RentBuffer(rawNumberOfBytesToWrite, logger);
try
{
Marshal.Copy(rawBuffer, buffer, 0, (int)rawNumberOfBytesToWrite);
result = operations.WriteFile(
rawFileName,
buffer,
out rawNumberOfBytesWritten,
rawOffset,
rawFileInfo);
}
finally
{
BufferPool.Default.ReturnBuffer(buffer, logger);
}
}
if (logger.DebugEnabled)
{
logger.Debug(
"WriteFileProxy : {0} Return : {1} NumberOfBytesWritten : {2}",
rawFileName,
result,
rawNumberOfBytesWritten);
}
return result;
}
catch (Exception ex)
{
logger.Error("WriteFileProxy : {0} Throw : {1}", rawFileName, ex.Message);
return DokanResult.InvalidParameter;
}
}
////
public NtStatus FlushFileBuffersProxy(string rawFileName, DokanFileInfo rawFileInfo)
{
try
{
if (logger.DebugEnabled)
{
logger.Debug("FlushFileBuffersProxy : {0}", rawFileName);
logger.Debug("\tContext\t{0}", rawFileInfo);
}
var result = operations.FlushFileBuffers(rawFileName, rawFileInfo);
if (logger.DebugEnabled) logger.Debug("FlushFileBuffersProxy : {0} Return : {1}", rawFileName, result);
return result;
}
catch (Exception ex)
{
logger.Error("FlushFileBuffersProxy : {0} Throw : {1}", rawFileName, ex.Message);
return DokanResult.InvalidParameter;
}
}
////
public NtStatus GetFileInformationProxy(
string rawFileName,
ref BY_HANDLE_FILE_INFORMATION rawHandleFileInformation,
DokanFileInfo rawFileInfo)
{
try
{
if (logger.DebugEnabled)
{
logger.Debug("GetFileInformationProxy : {0}", rawFileName);
logger.Debug("\tContext\t{0}", rawFileInfo);
}
var result = operations.GetFileInformation(rawFileName, out var fi, rawFileInfo);
if (result == DokanResult.Success)
{
Debug.Assert(fi.FileName != null, "FileName must not be null");
if (logger.DebugEnabled)
{
logger.Debug("\tFileName\t{0}", fi.FileName);
logger.Debug("\tAttributes\t{0}", fi.Attributes);
logger.Debug("\tCreationTime\t{0}", fi.CreationTime);
logger.Debug("\tLastAccessTime\t{0}", fi.LastAccessTime);
logger.Debug("\tLastWriteTime\t{0}", fi.LastWriteTime);
logger.Debug("\tLength\t{0}", fi.Length);
}
rawHandleFileInformation.dwFileAttributes = (uint)fi.Attributes /* + FILE_ATTRIBUTE_VIRTUAL*/;
var ctime = ToFileTime(fi.CreationTime);
var atime = ToFileTime(fi.LastAccessTime);
var mtime = ToFileTime(fi.LastWriteTime);
rawHandleFileInformation.ftCreationTime.dwHighDateTime = (int)(ctime >> 32);
rawHandleFileInformation.ftCreationTime.dwLowDateTime = (int)(ctime & 0xffffffff);
rawHandleFileInformation.ftLastAccessTime.dwHighDateTime = (int)(atime >> 32);
rawHandleFileInformation.ftLastAccessTime.dwLowDateTime = (int)(atime & 0xffffffff);
rawHandleFileInformation.ftLastWriteTime.dwHighDateTime = (int)(mtime >> 32);
rawHandleFileInformation.ftLastWriteTime.dwLowDateTime = (int)(mtime & 0xffffffff);
rawHandleFileInformation.dwVolumeSerialNumber = serialNumber;
rawHandleFileInformation.nFileSizeLow = (uint)(fi.Length & 0xffffffff);
rawHandleFileInformation.nFileSizeHigh = (uint)(fi.Length >> 32);
rawHandleFileInformation.dwNumberOfLinks = 1;
rawHandleFileInformation.nFileIndexHigh = 0;
rawHandleFileInformation.nFileIndexLow = (uint)(fi.FileName?.GetHashCode() ?? 0);
}
if (logger.DebugEnabled) logger.Debug("GetFileInformationProxy : {0} Return : {1}", rawFileName, result);
return result;
}
catch (Exception ex)
{
logger.Error("GetFileInformationProxy : {0} Throw : {1}", rawFileName, ex.Message);
return DokanResult.InvalidParameter;
}
}
////
public NtStatus FindFilesProxy(string rawFileName, IntPtr rawFillFindData, DokanFileInfo rawFileInfo)
{
try
{
if (logger.DebugEnabled)
{
logger.Debug("FindFilesProxy : {0}", rawFileName);
logger.Debug("\tContext\t{0}", rawFileInfo);
}
var result = operations.FindFiles(rawFileName, out IList<FileInformation> files, rawFileInfo);
Debug.Assert(files != null, "Files must not be null");
if (result == DokanResult.Success && files.Count != 0)
{
if (logger.DebugEnabled)
{
foreach (var fi in files)
{
logger.Debug("\tFileName\t{0}", fi.FileName);
logger.Debug("\t\tAttributes\t{0}", fi.Attributes);
logger.Debug("\t\tCreationTime\t{0}", fi.CreationTime);
logger.Debug("\t\tLastAccessTime\t{0}", fi.LastAccessTime);
logger.Debug("\t\tLastWriteTime\t{0}", fi.LastWriteTime);
logger.Debug("\t\tLength\t{0}", fi.Length);
}
}
var fill = GetDataFromPointer<FILL_FIND_FILE_DATA>(rawFillFindData);
// used a single entry call to speed up the "enumeration" of the list
foreach (var t in files)
{
AddTo(fill, rawFileInfo, t);
}
}
if (logger.DebugEnabled) logger.Debug("FindFilesProxy : {0} Return : {1}", rawFileName, result);
return result;
}
catch (Exception ex)
{
logger.Error("FindFilesProxy : {0} Throw : {1}", rawFileName, ex.Message);
return DokanResult.InvalidParameter;
}
}
public NtStatus FindFilesWithPatternProxy(
string rawFileName,
string rawSearchPattern,
IntPtr rawFillFindData,
DokanFileInfo rawFileInfo)
{
try
{
if (logger.DebugEnabled)
{
logger.Debug("FindFilesWithPatternProxy : {0}", rawFileName);
logger.Debug("\trawSearchPattern\t{0}", rawSearchPattern);
logger.Debug("\tContext\t{0}", rawFileInfo);
}
var result = operations.FindFilesWithPattern(rawFileName, rawSearchPattern, out IList<FileInformation> files, rawFileInfo);
Debug.Assert(files != null, "Files must not be null");
if (result == DokanResult.Success && files.Any())
{
if (logger.DebugEnabled)
{
foreach (var fi in files)
{
logger.Debug("\tFileName\t{0}", fi.FileName);
logger.Debug("\t\tAttributes\t{0}", fi.Attributes);
logger.Debug("\t\tCreationTime\t{0}", fi.CreationTime);
logger.Debug("\t\tLastAccessTime\t{0}", fi.LastAccessTime);
logger.Debug("\t\tLastWriteTime\t{0}", fi.LastWriteTime);
logger.Debug("\t\tLength\t{0}", fi.Length);
}
}
var fill = GetDataFromPointer<FILL_FIND_FILE_DATA>(rawFillFindData);
// used a single entry call to speed up the "enumeration" of the list
foreach (var t in files)
{
AddTo(fill, rawFileInfo, t);
}
}
if (logger.DebugEnabled) logger.Debug("FindFilesWithPatternProxy : {0} Return : {1}", rawFileName, result);
return result;
}
catch (Exception ex)
{
logger.Error("FindFilesWithPatternProxy : {0} Throw : {1}", rawFileName, ex.Message);
return DokanResult.InvalidParameter;
}
}
/// <summary>
/// Call the delegate <paramref name="fill"/> using data in <paramref name="rawFileInfo"/> and <paramref name="fi"/>.
/// </summary>
/// <param name="fill">The delegate of type <see cref="FILL_FIND_FILE_DATA"/> to be called.</param>
/// <param name="rawFileInfo">A <see cref="DokanFileInfo"/> to be used when calling <paramref name="fill"/>.</param>
/// <param name="fi">A <see cref="FileInformation"/> with information to be used when calling <paramref name="fill"/>.</param>
private static void AddTo(FILL_FIND_FILE_DATA fill, DokanFileInfo rawFileInfo, FileInformation fi)
{
Debug.Assert(!string.IsNullOrEmpty(fi.FileName), "FileName must not be empty or null");
var ctime = ToFileTime(fi.CreationTime);
var atime = ToFileTime(fi.LastAccessTime);
var mtime = ToFileTime(fi.LastWriteTime);
var data = new WIN32_FIND_DATA
{
dwFileAttributes = fi.Attributes,
ftCreationTime =
{
dwHighDateTime = (int) (ctime >> 32),
dwLowDateTime = (int) (ctime & 0xffffffff)
},
ftLastAccessTime =
{
dwHighDateTime = (int) (atime >> 32),
dwLowDateTime = (int) (atime & 0xffffffff)
},
ftLastWriteTime =
{
dwHighDateTime = (int) (mtime >> 32),
dwLowDateTime = (int) (mtime & 0xffffffff)
},
nFileSizeLow = (uint)(fi.Length & 0xffffffff),
nFileSizeHigh = (uint)(fi.Length >> 32),
cFileName = fi.FileName
};
//ZeroMemory(&data, sizeof(WIN32_FIND_DATAW));
fill(ref data, rawFileInfo);
}
public NtStatus FindStreamsProxy(string rawFileName, IntPtr rawFillFindData, IntPtr findStreamContext, DokanFileInfo rawFileInfo)
{
try
{
if (logger.DebugEnabled)
{
logger.Debug("FindStreamsProxy: {0}", rawFileName);
logger.Debug("\tContext\t{0}", rawFileInfo);
}
var result = operations.FindStreams(rawFileName, out IList<FileInformation> files, rawFileInfo);
Debug.Assert(!(result == DokanResult.NotImplemented && files == null));
if (result == DokanResult.Success && files.Count != 0)
{
if (logger.DebugEnabled)
{
foreach (var fi in files)
{
logger.Debug("\tFileName\t{0}", fi.FileName);
logger.Debug("\t\tLength\t{0}", fi.Length);
}
}
var fill = GetDataFromPointer<FILL_FIND_STREAM_DATA>(rawFillFindData);
// used a single entry call to speed up the "enumeration" of the list
bool bufferFull = false;
foreach (var t in files)
{
if (bufferFull)
{
result = NtStatus.BufferOverflow;
break;
}
bufferFull = !AddTo(fill, findStreamContext, t);
}
}
if (logger.DebugEnabled) logger.Debug("FindStreamsProxy : {0} Return : {1}", rawFileName, result);
return result;
}
catch (Exception ex)
{
logger.Error("FindStreamsProxy : {0} Throw : {1}", rawFileName, ex.Message);
return DokanResult.InvalidParameter;
}
}
/// <summary>Converts an unmanaged function pointer to a delegate of a specified type. </summary>
/// <returns>A instance of the specified delegate type.</returns>
/// <param name="rawDelegate">The unmanaged function pointer to convert. </param>
/// <typeparam name="TDelegate">The type of the delegate to return. </typeparam>
/// <exception cref="T:System.ArgumentException">The <typeparamref name="TDelegate" /> generic parameter is not a delegate, or it is an open generic type.</exception>
/// <exception cref="T:System.ArgumentNullException">The <paramref name="rawDelegate" /> parameter is null.</exception>
private static TDelegate GetDataFromPointer<TDelegate>(IntPtr rawDelegate) where TDelegate : class
{
#if NET451_OR_GREATER
return Marshal.GetDelegateForFunctionPointer<TDelegate>(rawDelegate);
#else
return Marshal.GetDelegateForFunctionPointer(rawDelegate, typeof(TDelegate)) as TDelegate;
#endif
}
/// <summary>
/// Call the delegate <paramref name="fill"/> using data in <paramref name="fi"/> and <paramref name="findStreamContext"/>.
/// </summary>
/// <param name="fill">The delegate of type <see cref="FILL_FIND_STREAM_DATA"/> to be called.</param>
/// <param name="findStreamContext">A <see cref="IntPtr"/> to be used when calling <paramref name="fill"/>.</param>
/// <param name="fi">A <see cref="FileInformation"/> with information to be used when calling <paramref name="fill"/>.</param>
/// <returns>Whether the buffer is full or not.</returns>
private static bool AddTo(FILL_FIND_STREAM_DATA fill, IntPtr findStreamContext, FileInformation fi)
{
Debug.Assert(!string.IsNullOrEmpty(fi.FileName), "FileName must not be empty or null");
var data = new WIN32_FIND_STREAM_DATA
{
StreamSize = fi.Length,
cStreamName = fi.FileName
};
//ZeroMemory(&data, sizeof(WIN32_FIND_DATAW));
return fill(ref data, findStreamContext);
}
////
public NtStatus SetEndOfFileProxy(string rawFileName, long rawByteOffset, DokanFileInfo rawFileInfo)
{
try
{
if (logger.DebugEnabled)
{
logger.Debug("SetEndOfFileProxy : {0}", rawFileName);
logger.Debug("\tByteOffset\t{0}", rawByteOffset);
logger.Debug("\tContext\t{0}", rawFileInfo);
}
var result = operations.SetEndOfFile(rawFileName, rawByteOffset, rawFileInfo);
if (logger.DebugEnabled) logger.Debug("SetEndOfFileProxy : {0} Return : {1}", rawFileName, result);
return result;
}
catch (Exception ex)
{
logger.Error("SetEndOfFileProxy : {0} Throw : {1}", rawFileName, ex.Message);
return DokanResult.InvalidParameter;
}
}
public NtStatus SetAllocationSizeProxy(string rawFileName, long rawLength, DokanFileInfo rawFileInfo)
{
try
{
if (logger.DebugEnabled)
{
logger.Debug("SetAllocationSizeProxy : {0}", rawFileName);
logger.Debug("\tLength\t{0}", rawLength);
logger.Debug("\tContext\t{0}", rawFileInfo);
}
var result = operations.SetAllocationSize(rawFileName, rawLength, rawFileInfo);
if (logger.DebugEnabled) logger.Debug("SetAllocationSizeProxy : {0} Return : {1}", rawFileName, result);
return result;
}
catch (Exception ex)
{
logger.Error("SetAllocationSizeProxy : {0} Throw : {1}", rawFileName, ex.Message);
return DokanResult.InvalidParameter;
}
}
////
public NtStatus SetFileAttributesProxy(string rawFileName, uint rawAttributes, DokanFileInfo rawFileInfo)
{
try
{
if (logger.DebugEnabled)
{
logger.Debug("SetFileAttributesProxy : {0}", rawFileName);
logger.Debug("\tAttributes\t{0}", (FileAttributes)rawAttributes);
logger.Debug("\tContext\t{0}", rawFileInfo);
}
var result = operations.SetFileAttributes(rawFileName, (FileAttributes)rawAttributes, rawFileInfo);
if (logger.DebugEnabled) logger.Debug("SetFileAttributesProxy : {0} Return : {1}", rawFileName, result);
return result;
}
catch (Exception ex)
{
logger.Error("SetFileAttributesProxy : {0} Throw : {1}", rawFileName, ex.Message);
return DokanResult.InvalidParameter;
}
}
////
public NtStatus SetFileTimeProxy(
string rawFileName,
ref FILETIME rawCreationTime,
ref FILETIME rawLastAccessTime,
ref FILETIME rawLastWriteTime,
DokanFileInfo rawFileInfo)
{
try
{
var ctime = (rawCreationTime.dwLowDateTime != 0 || rawCreationTime.dwHighDateTime != 0) &&
(rawCreationTime.dwLowDateTime != -1 || rawCreationTime.dwHighDateTime != -1)
? DateTime.FromFileTime(((long) rawCreationTime.dwHighDateTime << 32) |
(uint) rawCreationTime.dwLowDateTime)
: (DateTime?) null;
var atime = (rawLastAccessTime.dwLowDateTime != 0 || rawLastAccessTime.dwHighDateTime != 0) &&
(rawLastAccessTime.dwLowDateTime != -1 || rawLastAccessTime.dwHighDateTime != -1)
? DateTime.FromFileTime(((long) rawLastAccessTime.dwHighDateTime << 32) |
(uint) rawLastAccessTime.dwLowDateTime)
: (DateTime?) null;
var mtime = (rawLastWriteTime.dwLowDateTime != 0 || rawLastWriteTime.dwHighDateTime != 0) &&
(rawLastWriteTime.dwLowDateTime != -1 || rawLastWriteTime.dwHighDateTime != -1)
? DateTime.FromFileTime(((long) rawLastWriteTime.dwHighDateTime << 32) |
(uint) rawLastWriteTime.dwLowDateTime)
: (DateTime?) null;
if (logger.DebugEnabled)
{
logger.Debug("SetFileTimeProxy : {0}", rawFileName);
logger.Debug("\tCreateTime\t{0}", ctime);
logger.Debug("\tAccessTime\t{0}", atime);
logger.Debug("\tWriteTime\t{0}", mtime);
logger.Debug("\tContext\t{0}", rawFileInfo);
}
var result = operations.SetFileTime(rawFileName, ctime, atime, mtime, rawFileInfo);
if (logger.DebugEnabled) logger.Debug("SetFileTimeProxy : {0} Return : {1}", rawFileName, result);
return result;
}
catch (Exception ex)
{
logger.Error("SetFileTimeProxy : {0} Throw : {1}", rawFileName, ex.Message);
return DokanResult.InvalidParameter;
}
}
////
public NtStatus DeleteFileProxy(string rawFileName, DokanFileInfo rawFileInfo)
{
try
{
if (logger.DebugEnabled)
{
logger.Debug("DeleteFileProxy : {0}", rawFileName);
logger.Debug("\tContext\t{0}", rawFileInfo);
}
var result = operations.DeleteFile(rawFileName, rawFileInfo);
if (logger.DebugEnabled) logger.Debug("DeleteFileProxy : {0} Return : {1}", rawFileName, result);
return result;
}
catch (Exception ex)
{
logger.Error("DeleteFileProxy : {0} Throw : {1}", rawFileName, ex.Message);
return DokanResult.InvalidParameter;
}
}
////
public NtStatus DeleteDirectoryProxy(string rawFileName, DokanFileInfo rawFileInfo)
{
try
{
if (logger.DebugEnabled)
{
logger.Debug("DeleteDirectoryProxy : {0}", rawFileName);
logger.Debug("\tContext\t{0}", rawFileInfo);
}
var result = operations.DeleteDirectory(rawFileName, rawFileInfo);
if (logger.DebugEnabled) logger.Debug("DeleteDirectoryProxy : {0} Return : {1}", rawFileName, result);
return result;
}
catch (Exception ex)
{
logger.Error("DeleteDirectoryProxy : {0} Throw : {1}", rawFileName, ex.Message);
return DokanResult.InvalidParameter;
}
}
////
public NtStatus MoveFileProxy(
string rawFileName,
string rawNewFileName,
bool rawReplaceIfExisting,
DokanFileInfo rawFileInfo)
{
try
{
if (logger.DebugEnabled)
{
logger.Debug("MoveFileProxy : {0}", rawFileName);
logger.Debug("\tNewFileName\t{0}", rawNewFileName);
logger.Debug("\tReplaceIfExisting\t{0}", rawReplaceIfExisting);
logger.Debug("\tContext\t{0}", rawFileInfo);
}
var result = operations.MoveFile(rawFileName, rawNewFileName, rawReplaceIfExisting, rawFileInfo);
if (logger.DebugEnabled) logger.Debug("MoveFileProxy : {0} Return : {1}", rawFileName, result);
return result;
}
catch (Exception ex)
{
logger.Error("MoveFileProxy : {0} Throw : {1}", rawFileName, ex.Message);
return DokanResult.InvalidParameter;