On Mon, Apr 28, 2025 at 4:15 PM Chuck Lever <chuck.lever@xxxxxxxxxx> wrote: > > Hi Sebastian - > > On 4/28/25 7:06 AM, Sebastian Feld wrote: > > I've been debating with Opentext support about their Windows NFS4.0 > > client about a problem that the Windows attributes HIDDEN and SYSTEM > > work with a Solaris NFSD, but not with a Linux NFSD. > > > > Their support said it's a known bug in LInux NFSD that "fattr4_hidden > > and fattr4_system, specified in RFC 3530, are broken in Linux NFSD". > > RFC 7530 updates and replaces RFC 3530. > > Section 5.7 lists "hidden" and "system" as RECOMMENDED attributes, > meaning that NFSv4 servers are not required to implement them. > > So that tells me that both the Solaris NFS server and the Linux NFS > server are spec compliant in this regard. This is NOTABUG, but rather it > is a server implementation choice that is permitted by RFC. > > It is more correct to say that the Linux NFS server does not currently > implement either of these attributes. The reason is that native Linux > file systems do not support these attributes, and I believe that neither > does the Linux VFS. So there is nowhere to store these, and no way to > access them in filesystems (such as the Linux port of NTFS) that do > implement them. > > We want to have a facility that can be used by native applications > (such as Wine), Samba, and NFSD. So implementing side-car storage > for such attributes that only NFSD can see and use is not really > desirable. I did a bit of digging, that debate started in 2002. 23 years later, nothing happened. No Solution. Very depressing. Sebi -- Sebastian Feld - IT security consultant
