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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, Boolean ResolveLastPathComponent,
out IoStatusBlock IoStatus, out IoStatusBlock IoStatus,
IntPtr Buffer, IntPtr Buffer,
ref UIntPtr Size) IntPtr PSize)
{ {
GCHandle Handle = GCHandle.Alloc(this, GCHandleType.Normal); GCHandle Handle = GCHandle.Alloc(this, GCHandleType.Normal);
try try
@ -281,7 +281,7 @@ namespace Fsp
ResolveLastPathComponent, ResolveLastPathComponent,
out IoStatus, out IoStatus,
Buffer, Buffer,
ref Size); PSize);
} }
finally finally
{ {
@ -291,8 +291,7 @@ namespace Fsp
public virtual Int32 GetReparsePointByName( public virtual Int32 GetReparsePointByName(
String FileName, String FileName,
Boolean IsDirectory, Boolean IsDirectory,
IntPtr Buffer, ref Byte[] ReparsePoint)
ref UIntPtr Size)
{ {
return STATUS_INVALID_DEVICE_REQUEST; return STATUS_INVALID_DEVICE_REQUEST;
} }
@ -300,18 +299,15 @@ namespace Fsp
Object FileNode, Object FileNode,
Object FileDesc, Object FileDesc,
String FileName, String FileName,
IntPtr Buffer, ref Byte[] ReparsePoint)
out UIntPtr Size)
{ {
Size = default(UIntPtr);
return STATUS_INVALID_DEVICE_REQUEST; return STATUS_INVALID_DEVICE_REQUEST;
} }
public virtual Int32 SetReparsePoint( public virtual Int32 SetReparsePoint(
Object FileNode, Object FileNode,
Object FileDesc, Object FileDesc,
String FileName, String FileName,
IntPtr Buffer, Byte[] ReparsePoint)
UIntPtr Size)
{ {
return STATUS_INVALID_DEVICE_REQUEST; return STATUS_INVALID_DEVICE_REQUEST;
} }
@ -319,8 +315,7 @@ namespace Fsp
Object FileNode, Object FileNode,
Object FileDesc, Object FileDesc,
String FileName, String FileName,
IntPtr Buffer, Byte[] ReparsePoint)
UIntPtr Size)
{ {
return STATUS_INVALID_DEVICE_REQUEST; return STATUS_INVALID_DEVICE_REQUEST;
} }
@ -427,22 +422,40 @@ namespace Fsp
Handle.Free(); 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( private static Int32 GetReparsePointByName(
IntPtr FileSystem, IntPtr FileSystem,
IntPtr Context, IntPtr Context,
String FileName, String FileName,
Boolean IsDirectory, Boolean IsDirectory,
IntPtr Buffer, IntPtr Buffer,
ref UIntPtr Size) IntPtr PSize)
{ {
FileSystemBase self = (FileSystemBase)GCHandle.FromIntPtr(Context).Target; FileSystemBase self = (FileSystemBase)GCHandle.FromIntPtr(Context).Target;
try try
{ {
return self.GetReparsePointByName( Byte[] ReparsePointBytes;
Int32 Result;
ReparsePointBytes = null;
Result = self.GetReparsePointByName(
FileName, FileName,
IsDirectory, IsDirectory,
Buffer, ref ReparsePointBytes);
ref Size); if (0 <= Result)
Result = Api.CopyReparsePoint(ReparsePointBytes, Buffer, PSize);
return Result;
} }
catch (Exception ex) catch (Exception ex)
{ {

24
src/dotnet/FileSystemHost.cs
View File

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

41
src/dotnet/Interop.cs
View File

@ -354,14 +354,14 @@ namespace Fsp.Interop
[MarshalAs(UnmanagedType.U1)] Boolean ResolveLastPathComponent, [MarshalAs(UnmanagedType.U1)] Boolean ResolveLastPathComponent,
out IoStatusBlock PIoStatus, out IoStatusBlock PIoStatus,
IntPtr Buffer, IntPtr Buffer,
ref UIntPtr PSize); IntPtr PSize);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)] [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
internal delegate Int32 GetReparsePoint( internal delegate Int32 GetReparsePoint(
IntPtr FileSystem, IntPtr FileSystem,
ref FullContext FullContext, ref FullContext FullContext,
[MarshalAs(UnmanagedType.LPWStr)] String FileName, [MarshalAs(UnmanagedType.LPWStr)] String FileName,
IntPtr Buffer, IntPtr Buffer,
out UIntPtr PSize); IntPtr PSize);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)] [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
internal delegate Int32 SetReparsePoint( internal delegate Int32 SetReparsePoint(
IntPtr FileSystem, IntPtr FileSystem,
@ -488,7 +488,7 @@ namespace Fsp.Interop
[MarshalAs(UnmanagedType.U1)] Boolean ResolveLastPathComponent, [MarshalAs(UnmanagedType.U1)] Boolean ResolveLastPathComponent,
out IoStatusBlock PIoStatus, out IoStatusBlock PIoStatus,
IntPtr Buffer, IntPtr Buffer,
ref UIntPtr PSize); IntPtr PSize);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)] [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
internal delegate Int32 FspFileSystemCanReplaceReparsePoint( internal delegate Int32 FspFileSystemCanReplaceReparsePoint(
IntPtr CurrentReparseData, IntPtr CurrentReparseData,
@ -587,7 +587,7 @@ namespace Fsp.Interop
[MarshalAs(UnmanagedType.LPWStr)] String FileName, [MarshalAs(UnmanagedType.LPWStr)] String FileName,
[MarshalAs(UnmanagedType.U1)] Boolean IsDirectory, [MarshalAs(UnmanagedType.U1)] Boolean IsDirectory,
IntPtr Buffer, IntPtr Buffer,
ref UIntPtr PSize); IntPtr PSize);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)] [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
internal delegate Int32 ServiceStart( internal delegate Int32 ServiceStart(
IntPtr Service, IntPtr Service,
@ -770,6 +770,39 @@ namespace Fsp.Interop
return null; 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) internal static Int32 SetDebugLogFile(String FileName)
{ {
IntPtr Handle; IntPtr Handle;