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dotnet: GetDirInfoByName

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This commit is contained in:
Bill Zissimopoulos 2017-09-28 14:11:58 -07:00
parent 6430b386da
commit 487d2449fe
3 changed files with 74 additions and 1 deletions
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31
src/dotnet/FileSystemBase.cs
View File

@ -935,6 +935,37 @@ namespace Fsp
StreamAllocationSize = default(UInt64);
return false;
}
/// <summary>
/// Gets directory information for a single file or directory within a parent directory.
/// </summary>
/// <param name="FileNode">
/// The file node of the parent directory.
/// </param>
/// <param name="FileDesc">
/// The file descriptor of the parent directory.
/// </param>
/// <param name="FileName">
/// The name of the file or directory to get information for. This name is relative
/// to the parent directory and is a single path component.
/// </param>
/// <param name="NormalizedName">
/// Receives the normalized name from the directory entry.
/// </param>
/// <param name="FileInfo">
/// Receives the file information.
/// </param>
/// <returns>STATUS_SUCCESS or error code.</returns>
public virtual Int32 GetDirInfoByName(
Object FileNode,
Object FileDesc,
String FileName,
out String NormalizedName,
out FileInfo FileInfo)
{
NormalizedName = default(String);
FileInfo = default(FileInfo);
return STATUS_INVALID_DEVICE_REQUEST;
}
/* helpers */
/// <summary>

34
src/dotnet/FileSystemHost.cs
View File

@ -189,6 +189,11 @@ namespace Fsp
get { return 0 != (_VolumeParams.Flags & VolumeParams.PassQueryDirectoryPattern); }
set { _VolumeParams.Flags |= (value ? VolumeParams.PassQueryDirectoryPattern : 0); }
}
public Boolean PassQueryDirectoryFileName
{
get { return 0 != (_VolumeParams.Flags & VolumeParams.PassQueryDirectoryFileName); }
set { _VolumeParams.Flags |= (value ? VolumeParams.PassQueryDirectoryFileName : 0); }
}
/// <summary>
/// Gets or sets the prefix for a network file system.
/// </summary>
@ -987,6 +992,34 @@ namespace Fsp
return ExceptionHandler(FileSystem, ex);
}
}
private static Int32 GetDirInfoByName(
IntPtr FileSystemPtr,
ref FullContext FullContext,
String FileName,
out DirInfo DirInfo)
{
FileSystemBase FileSystem = (FileSystemBase)Api.GetUserContext(FileSystemPtr);
try
{
Object FileNode, FileDesc;
String NormalizedName;
Api.GetFullContext(ref FullContext, out FileNode, out FileDesc);
DirInfo = default(DirInfo);
Int32 Result = FileSystem.GetDirInfoByName(
FileNode,
FileDesc,
FileName,
out NormalizedName,
out DirInfo.FileInfo);
DirInfo.SetFileNameBuf(NormalizedName);
return Result;
}
catch (Exception ex)
{
DirInfo = default(DirInfo);
return ExceptionHandler(FileSystem, ex);
}
}
static FileSystemHost()
{
@ -1014,6 +1047,7 @@ namespace Fsp
_FileSystemInterface.SetReparsePoint = SetReparsePoint;
_FileSystemInterface.DeleteReparsePoint = DeleteReparsePoint;
_FileSystemInterface.GetStreamInfo = GetStreamInfo;
_FileSystemInterface.GetDirInfoByName = GetDirInfoByName;
_FileSystemInterfacePtr = Marshal.AllocHGlobal(FileSystemInterface.Size);
Marshal.StructureToPtr(_FileSystemInterface, _FileSystemInterfacePtr, false);

10
src/dotnet/Interop.cs
View File

@ -42,6 +42,7 @@ namespace Fsp.Interop
internal const UInt32 PostCleanupWhenModifiedOnly = 0x00000400;
internal const UInt32 PassQueryDirectoryPattern = 0x00000800;
internal const UInt32 AlwaysUseDoubleBuffering = 0x00001000;
internal const UInt32 PassQueryDirectoryFileName = 0x00002000;
internal const UInt32 UmFileContextIsUserContext2 = 0x00010000;
internal const UInt32 UmFileContextIsFullContext = 0x00020000;
internal const int PrefixSize = 192;
@ -450,6 +451,12 @@ namespace Fsp.Interop
IntPtr Buffer,
UInt32 Length,
out UInt32 PBytesTransferred);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
internal delegate Int32 GetDirInfoByName(
IntPtr FileSystem,
ref FullContext FullContext,
[MarshalAs(UnmanagedType.LPWStr)] String FileName,
out DirInfo DirInfo);
}
internal static int Size = IntPtr.Size * 64;
@ -478,7 +485,8 @@ namespace Fsp.Interop
internal Proto.SetReparsePoint SetReparsePoint;
internal Proto.DeleteReparsePoint DeleteReparsePoint;
internal Proto.GetStreamInfo GetStreamInfo;
/* NTSTATUS (*Reserved[40])(); */
internal Proto.GetDirInfoByName GetDirInfoByName;
/* NTSTATUS (*Reserved[39])(); */
}
[SuppressUnmanagedCodeSecurity]