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dotnet: reparse point changes

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This commit is contained in:
Bill Zissimopoulos 2017-05-05 18:23:52 -07:00
parent b5bfeee027
commit b38a89e485
3 changed files with 78 additions and 30 deletions
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43
src/dotnet/FileSystemBase.cs
View File

@ -267,7 +267,7 @@ namespace Fsp
Boolean ResolveLastPathComponent,
out IoStatusBlock IoStatus,
IntPtr Buffer,
ref UIntPtr Size)
IntPtr PSize)
{
GCHandle Handle = GCHandle.Alloc(this, GCHandleType.Normal);
try
@ -281,7 +281,7 @@ namespace Fsp
ResolveLastPathComponent,
out IoStatus,
Buffer,
ref Size);
PSize);
}
finally
{
@ -291,8 +291,7 @@ namespace Fsp
public virtual Int32 GetReparsePointByName(
String FileName,
Boolean IsDirectory,
IntPtr Buffer,
ref UIntPtr Size)
ref Byte[] ReparsePoint)
{
return STATUS_INVALID_DEVICE_REQUEST;
}
@ -300,18 +299,15 @@ namespace Fsp
Object FileNode,
Object FileDesc,
String FileName,
IntPtr Buffer,
out UIntPtr Size)
ref Byte[] ReparsePoint)
{
Size = default(UIntPtr);
return STATUS_INVALID_DEVICE_REQUEST;
}
public virtual Int32 SetReparsePoint(
Object FileNode,
Object FileDesc,
String FileName,
IntPtr Buffer,
UIntPtr Size)
Byte[] ReparsePoint)
{
return STATUS_INVALID_DEVICE_REQUEST;
}
@ -319,8 +315,7 @@ namespace Fsp
Object FileNode,
Object FileDesc,
String FileName,
IntPtr Buffer,
UIntPtr Size)
Byte[] ReparsePoint)
{
return STATUS_INVALID_DEVICE_REQUEST;
}
@ -427,22 +422,40 @@ namespace Fsp
Handle.Free();
}
}
public static UInt32 GetReparseTag(
Byte[] ReparseData)
{
return 0;
}
public static Int32 CanReplaceReparsePoint(
Byte[] CurrentReparseData,
Byte[] ReplaceReparseData)
{
// !!!: NOT IMPLEMENTED
return STATUS_SUCCESS;
}
private static Int32 GetReparsePointByName(
IntPtr FileSystem,
IntPtr Context,
String FileName,
Boolean IsDirectory,
IntPtr Buffer,
ref UIntPtr Size)
IntPtr PSize)
{
FileSystemBase self = (FileSystemBase)GCHandle.FromIntPtr(Context).Target;
try
{
return self.GetReparsePointByName(
Byte[] ReparsePointBytes;
Int32 Result;
ReparsePointBytes = null;
Result = self.GetReparsePointByName(
FileName,
IsDirectory,
Buffer,
ref Size);
ref ReparsePointBytes);
if (0 <= Result)
Result = Api.CopyReparsePoint(ReparsePointBytes, Buffer, PSize);
return Result;
}
catch (Exception ex)
{

24
src/dotnet/FileSystemHost.cs
View File

@ -763,7 +763,7 @@ namespace Fsp
Boolean ResolveLastPathComponent,
out IoStatusBlock PIoStatus,
IntPtr Buffer,
ref UIntPtr PSize)
IntPtr PSize)
{
FileSystemBase FileSystem = (FileSystemBase)Api.GetUserContext(FileSystemPtr);
try
@ -774,7 +774,7 @@ namespace Fsp
ResolveLastPathComponent,
out PIoStatus,
Buffer,
ref PSize);
PSize);
}
catch (Exception ex)
{
@ -787,23 +787,27 @@ namespace Fsp
ref FullContext FullContext,
String FileName,
IntPtr Buffer,
out UIntPtr PSize)
IntPtr PSize)
{
FileSystemBase FileSystem = (FileSystemBase)Api.GetUserContext(FileSystemPtr);
try
{
Byte[] ReparsePointBytes;
Object FileNode, FileDesc;
Int32 Result;
Api.GetFullContext(ref FullContext, out FileNode, out FileDesc);
return FileSystem.GetReparsePoint(
ReparsePointBytes = null;
Result = FileSystem.GetReparsePoint(
FileNode,
FileDesc,
FileName,
Buffer,
out PSize);
ref ReparsePointBytes);
if (0 <= Result)
Result = Api.CopyReparsePoint(ReparsePointBytes, Buffer, PSize);
return Result;
}
catch (Exception ex)
{
PSize = default(UIntPtr);
return ExceptionHandler(FileSystem, ex);
}
}
@ -823,8 +827,7 @@ namespace Fsp
FileNode,
FileDesc,
FileName,
Buffer,
Size);
Api.MakeReparsePoint(Buffer, Size));
}
catch (Exception ex)
{
@ -847,8 +850,7 @@ namespace Fsp
FileNode,
FileDesc,
FileName,
Buffer,
Size);
Api.MakeReparsePoint(Buffer, Size));
}
catch (Exception ex)
{

41
src/dotnet/Interop.cs
View File

@ -354,14 +354,14 @@ namespace Fsp.Interop
[MarshalAs(UnmanagedType.U1)] Boolean ResolveLastPathComponent,
out IoStatusBlock PIoStatus,
IntPtr Buffer,
ref UIntPtr PSize);
IntPtr PSize);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
internal delegate Int32 GetReparsePoint(
IntPtr FileSystem,
ref FullContext FullContext,
[MarshalAs(UnmanagedType.LPWStr)] String FileName,
IntPtr Buffer,
out UIntPtr PSize);
IntPtr PSize);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
internal delegate Int32 SetReparsePoint(
IntPtr FileSystem,
@ -488,7 +488,7 @@ namespace Fsp.Interop
[MarshalAs(UnmanagedType.U1)] Boolean ResolveLastPathComponent,
out IoStatusBlock PIoStatus,
IntPtr Buffer,
ref UIntPtr PSize);
IntPtr PSize);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
internal delegate Int32 FspFileSystemCanReplaceReparsePoint(
IntPtr CurrentReparseData,
@ -587,7 +587,7 @@ namespace Fsp.Interop
[MarshalAs(UnmanagedType.LPWStr)] String FileName,
[MarshalAs(UnmanagedType.U1)] Boolean IsDirectory,
IntPtr Buffer,
ref UIntPtr PSize);
IntPtr PSize);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
internal delegate Int32 ServiceStart(
IntPtr Service,
@ -770,6 +770,39 @@ namespace Fsp.Interop
return null;
}
internal unsafe static Int32 CopyReparsePoint(
Byte[] ReparsePointBytes,
IntPtr Buffer,
IntPtr PSize)
{
if (IntPtr.Zero != Buffer)
{
if (null != ReparsePointBytes)
{
if (ReparsePointBytes.Length > (int)*(UIntPtr *)PSize)
return unchecked((Int32)0xc0000023)/*STATUS_BUFFER_TOO_SMALL*/;
*(UIntPtr *)PSize = (UIntPtr)ReparsePointBytes.Length;
Marshal.Copy(ReparsePointBytes, 0, Buffer, ReparsePointBytes.Length);
}
else
*(UIntPtr *)PSize = UIntPtr.Zero;
}
return 0/*STATUS_SUCCESS*/;
}
internal static Byte[] MakeReparsePoint(
IntPtr Buffer,
UIntPtr Size)
{
if (IntPtr.Zero != Buffer)
{
Byte[] ReparsePointBytes = new Byte[(int)Size];
Marshal.Copy(Buffer, ReparsePointBytes, 0, ReparsePointBytes.Length);
return ReparsePointBytes;
}
else
return null;
}
internal static Int32 SetDebugLogFile(String FileName)
{
IntPtr Handle;