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dll: fuse: allow opening of reparse points

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This commit is contained in:
Bill Zissimopoulos 2016-09-13 14:36:40 -07:00
parent 2d3d92fb2d
commit 7401481d42
2 changed files with 31 additions and 1 deletions
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30
src/dll/fuse/fuse_intf.c
View File

@ -847,6 +847,7 @@ static NTSTATUS fsp_fuse_intf_Create(FSP_FILE_SYSTEM *FileSystem,
filedesc->PosixPath = contexthdr->PosixPath;
filedesc->IsDirectory = !!(FileInfoBuf.FileAttributes & FILE_ATTRIBUTE_DIRECTORY);
filedesc->IsReparsePoint = FALSE;
filedesc->OpenFlags = fi.flags;
filedesc->FileHandle = fi.fh;
filedesc->DirBuffer = 0;
@ -934,6 +935,11 @@ static NTSTATUS fsp_fuse_intf_Open(FSP_FILE_SYSTEM *FileSystem,
Result = STATUS_SUCCESS;
}
}
else if (FileInfoBuf.FileAttributes & FILE_ATTRIBUTE_REPARSE_POINT)
{
fi.fh = -1;
Result = STATUS_SUCCESS;
}
else
{
if (0 != f->ops.open)
@ -961,6 +967,7 @@ static NTSTATUS fsp_fuse_intf_Open(FSP_FILE_SYSTEM *FileSystem,
filedesc->PosixPath = contexthdr->PosixPath;
filedesc->IsDirectory = !!(FileInfoBuf.FileAttributes & FILE_ATTRIBUTE_DIRECTORY);
filedesc->IsReparsePoint = !!(FileInfoBuf.FileAttributes & FILE_ATTRIBUTE_REPARSE_POINT);
filedesc->OpenFlags = fi.flags;
filedesc->FileHandle = fi.fh;
filedesc->DirBuffer = 0;
@ -990,6 +997,9 @@ static NTSTATUS fsp_fuse_intf_Overwrite(FSP_FILE_SYSTEM *FileSystem,
int err;
NTSTATUS Result;
if (filedesc->IsDirectory || filedesc->IsReparsePoint)
return STATUS_ACCESS_DENIED;
if (0 != f->ops.ftruncate)
{
memset(&fi, 0, sizeof fi);
@ -1069,6 +1079,10 @@ static VOID fsp_fuse_intf_Close(FSP_FILE_SYSTEM *FileSystem,
if (0 != f->ops.releasedir)
f->ops.releasedir(filedesc->PosixPath, &fi);
}
else if (filedesc->IsReparsePoint)
{
/* reparse points are not opened, nothing to do! */
}
else
{
if (0 != f->ops.flush)
@ -1094,6 +1108,9 @@ static NTSTATUS fsp_fuse_intf_Read(FSP_FILE_SYSTEM *FileSystem,
int bytes;
NTSTATUS Result;
if (filedesc->IsDirectory || filedesc->IsReparsePoint)
return STATUS_ACCESS_DENIED;
if (0 == f->ops.read)
return STATUS_INVALID_DEVICE_REQUEST;
@ -1131,6 +1148,9 @@ static NTSTATUS fsp_fuse_intf_Write(FSP_FILE_SYSTEM *FileSystem,
int bytes;
NTSTATUS Result;
if (filedesc->IsDirectory || filedesc->IsReparsePoint)
return STATUS_ACCESS_DENIED;
if (0 == f->ops.write)
return STATUS_INVALID_DEVICE_REQUEST;
@ -1203,6 +1223,8 @@ static NTSTATUS fsp_fuse_intf_Flush(FSP_FILE_SYSTEM *FileSystem,
Result = fsp_fuse_ntstatus_from_errno(f->env, err);
}
}
else if (filedesc->IsReparsePoint)
Result = STATUS_ACCESS_DENIED;
else
{
if (0 != f->ops.fsync)
@ -1329,6 +1351,9 @@ static NTSTATUS fsp_fuse_intf_SetFileSize(FSP_FILE_SYSTEM *FileSystem,
int err;
NTSTATUS Result;
if (filedesc->IsDirectory || filedesc->IsReparsePoint)
return STATUS_ACCESS_DENIED;
if (0 == f->ops.ftruncate && 0 == f->ops.truncate)
return STATUS_INVALID_DEVICE_REQUEST;
@ -1644,6 +1669,9 @@ static NTSTATUS fsp_fuse_intf_ReadDirectory(FSP_FILE_SYSTEM *FileSystem,
int err;
NTSTATUS Result;
if (!filedesc->IsDirectory)
return STATUS_ACCESS_DENIED;
memset(&dh, 0, sizeof dh);
if (0 == filedesc->DirBuffer)
@ -2029,6 +2057,8 @@ static NTSTATUS fsp_fuse_intf_SetReparsePoint(FSP_FILE_SYSTEM *FileSystem,
goto exit;
}
filedesc->IsReparsePoint = TRUE;
Result = STATUS_SUCCESS;
exit:

2
src/dll/fuse/library.h
View File

@ -60,7 +60,7 @@ struct fsp_fuse_context_header
struct fsp_fuse_file_desc
{
char *PosixPath;
BOOLEAN IsDirectory;
BOOLEAN IsDirectory, IsReparsePoint;
int OpenFlags;
UINT64 FileHandle;
PVOID DirBuffer;