ntfs.streams.list xattr and listing alternate data streams

[Steve French]

Have there been any suggestions on how to list alternate data streams
on a file other than using a pseudo-xattr as ntfs-3g does (querying
xattr ntfs.streams.list - see http://linux.die.net/man/8/ntfs-3g)?

I have a patch that can do this for SMB3.  If an xattr is preferred
(over an ioctl for example) - for CIFS/SMB3 should we use the same
xattr ("ntfs.streams.list") or a CIFS specific one "user.streams.list"
or "cifs.streams.list" or "smb3.streams.list" for example)?

Opinions?
-- 
Thanks,

Steve