1 <samba:parameter name="store dos attributes"
4 xmlns:samba="http://www.samba.org/samba/DTD/samba-doc">
7 If this parameter is set Samba attempts to first read DOS attributes (SYSTEM, HIDDEN, ARCHIVE or
8 READ-ONLY) from a filesystem extended attribute, before mapping DOS attributes to UNIX permission bits (such
9 as occurs with <smbconfoption name="map hidden"/> and <smbconfoption name="map readonly"/>). When set, DOS
10 attributes will be stored onto an extended attribute in the UNIX filesystem, associated with the file or
11 directory. When this parameter is set it will override the parameters <smbconfoption name="map hidden"/>,
12 <smbconfoption name="map system"/>, <smbconfoption name="map archive"/> and <smbconfoption name="map
13 readonly"/> and they will behave as if they were set to off. This parameter writes the DOS attributes as a string into the extended
14 attribute named "user.DOSATTRIB". This extended attribute is explicitly hidden from smbd clients requesting an
15 EA list. On Linux the filesystem must have been mounted with the mount option user_xattr in order for
16 extended attributes to work, also extended attributes must be compiled into the Linux kernel.
18 In Samba 3.5.0 and above the "user.DOSATTRIB" extended attribute has been extended to store
19 the create time for a file as well as the DOS attributes. This is done in a backwards compatible
20 way so files created by Samba 3.5.0 and above can still have the DOS attribute read from this
21 extended attribute by earlier versions of Samba, but they will not be able to read the create
22 time stored there. Storing the create time separately from the normal filesystem meta-data
23 allows Samba to faithfully reproduce NTFS semantics on top of a POSIX filesystem.
25 The default has changed to yes in Samba release 4.9.0 and above to allow better Windows
26 fileserver compatibility in a default install.
29 <value type="default">yes</value>