On Sun, May 21, 2023 at 9:08 PM Steve French <smfrench@xxxxxxxxx> wrote: > > Looking through code today (in fs/cifs/xattr.c) I noticed an old > reference to returning alternate data streams as pseudo-xattrs. > Although it is possible to list streams via "smbinfo filestreaminfo" > presumably it is not common (opening streams on remote files from > Linux is probably not done as commonly as it should be as well). > > Any thoughts about returning alternate data streams via pseudo-xattrs? > Macs apparently allow this (see e.g. > https://www.jankyrobotsecurity.com/2018/07/24/accessing-alternate-data-streams-from-a-mac/) > > > > > > -- > Thanks, > > Steve Another issue with exposing ADS as xattr on Linux is that VFS caps max xattr size at 64 KiB. I've seen MacOS resource forks in the wild with sizes of up to 3 MiB. FCNTL sounds interesting. Andrew
