FreeBSD manual
download PDF document: vfs_acl_xattr.8.pdf
VFS_ACL_XATTR(8) System Administration tools VFS_ACL_XATTR(8)
NAME
vfs_acl_xattr - Save NTFS-ACLs in Extended Attributes (EAs)
SYNOPSIS
vfs objects = acl_xattr
DESCRIPTION
This VFS module is part of the samba(7) suite.
The vfs_acl_xattr VFS module stores NTFS Access Control Lists (ACLs) in
Extended Attributes (EAs). This enables the full mapping of Windows
ACLs on Samba servers.
The ACLs are stored in the Extended Attribute security.NTACL of a file
or directory. This Attribute is not listed by getfattr -d filename. To
show the current value, the name of the EA must be specified (e.g.
getfattr -n security.NTACL filename).
This module forces the following parameters:
o inherit acls = true
o dos filemode = true
o force unknown acl user = true
This module is stackable.
OPTIONS
acl_xattr:ignore system acls = [yes|no]
When set to yes, a best effort mapping from/to the POSIX ACL layer
will not be done by this module. The default is no, which means
that Samba keeps setting and evaluating both the system ACLs and
the NT ACLs. This is better if you need your system ACLs be set for
local or NFS file access, too. If you only access the data via
Samba you might set this to yes to achieve better NT ACL
compatibility.
If acl_xattr:ignore system acls is set to yes, the following
additional settings will be enforced:
o create mask = 0666
o directory mask = 0777
o map archive = no
o map hidden = no
o map readonly = no
o map system = no
o store dos attributes = yes
When set to windows, an ACL is synthesized the same way Windows
does it, only including permissions for the owner and NT
Authority\SYSTEM.
When set to everyone, an ACL is synthesized giving full permissions
to everyone (S-1-1-0).
The default for this option is posix.
AUTHOR
The original Samba software and related utilities were created by
Andrew Tridgell. Samba is now developed by the Samba Team as an Open
Source project similar to the way the Linux kernel is developed.
Samba 4.13.17 01/31/2022 VFS_ACL_XATTR(8)