#ifndef _NTIOAPI_H
typedef struct _FILE_LINK_ENTRY_INFORMATION
{
    ULONG NextEntryOffset;
    LONGLONG ParentFileId; // LARGE_INTEGER
    ULONG FileNameLength;
    _Field_size_bytes_(FileNameLength) WCHAR FileName[1];
} FILE_LINK_ENTRY_INFORMATION, *PFILE_LINK_ENTRY_INFORMATION;
View code on GitHubThis structure is documented in Windows Driver Kit.