<?xml version="1.0" encoding="iso-8859-1"?> <!DOCTYPE refentry PUBLIC "-//Samba-Team//DTD DocBook V4.2-Based Variant V1.0//EN" "http://www.samba.org/samba/DTD/samba-doc"> <ns:Root xmlns:xi="http://www.w3.org/2003/XInclude" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ns="urn:TestNamespace"> <refentry id="vfs_nfs4acl_xattr.8"> <refmeta> <refentrytitle>vfs_nfs4acl_xattr</refentrytitle> <manvolnum>8</manvolnum> <refmiscinfo class="source">Samba</refmiscinfo> <refmiscinfo class="manual">System Administration tools</refmiscinfo> <refmiscinfo class="version">&doc.version;</refmiscinfo> </refmeta> <refnamediv> <refname>vfs_nfs4acl_xattr</refname> <refpurpose>Save NTFS-ACLs as NFS4 encoded blobs in extended attributes</refpurpose> </refnamediv> <refsynopsisdiv> <cmdsynopsis> <command>vfs objects = nfs4acl_xattr</command> </cmdsynopsis> </refsynopsisdiv> <refsect1> <title>DESCRIPTION</title> <para>This VFS module is part of the <citerefentry><refentrytitle>samba</refentrytitle> <manvolnum>7</manvolnum></citerefentry> suite.</para> <para>The <command>vfs_acl_xattr</command> VFS module stores NTFS Access Control Lists (ACLs) in Extended Attributes (EAs/xattrs). This enables the full mapping of Windows ACLs on Samba servers. </para> <para>This module is stackable.</para> </refsect1> <refsect1> <title>OPTIONS</title> <xi:include href="nfs4.xml.include" xpointer="xpointer(*/*)" /> <variablelist> <varlistentry> <term>nfs4acl_xattr:encoding = [nfs|ndr|xdr]</term> <listitem> <para>This parameter configures the marshaling format used in the ACL blob and the default extended attribute name used to store the blob. </para> <para>When set to <emphasis>nfs</emphasis> - fetch and store the NT ACL in NFS 4.0 or 4.1 compatible XDR encoding. By default this uses the extended attribute "system.nfs4_acl". This setting also disables <emphasis>validate_mode</emphasis>.</para> <para>When set to <emphasis>ndr (default)</emphasis> - store the NT ACL with POSIX draft NFSv4 compatible NDR encoding. By default this uses the extended attribute "security.nfs4acl_ndr".</para> <para>When set to <emphasis>xdr</emphasis> - store the NT ACL in a format similar to NFS 4.1 RFC 5661 in XDR encoding. The main differences to RFC 5661 are the use of ids instead of strings as users and group identifiers and an additional attribute per nfsace4. By default this encoding stores the blob in the extended attribute "security.nfs4acl_xdr".</para> </listitem> </varlistentry> <varlistentry> <term>nfs4acl_xattr:version = [40|41]</term> <listitem> <para>This parameter configures the NFS4 ACL level. Only <emphasis>41</emphasis> fully supports mapping NT ACLs and should be used. The default is <emphasis>41</emphasis>.</para> </listitem> </varlistentry> <varlistentry> <term>nfs4acl_xattr:default acl style = [posix|windows|everyone]</term> <listitem> <para>This parameter determines the type of ACL that is synthesized in case a file or directory lacks an ACL extended attribute.</para> <para>When set to <emphasis>posix</emphasis>, an ACL will be synthesized based on the POSIX mode permissions for user, group and others, with an additional ACE for <emphasis>NT Authority\SYSTEM</emphasis> will full rights.</para> <para>When set to <emphasis>windows</emphasis>, an ACL is synthesized the same way Windows does it, only including permissions for the owner and <emphasis>NT Authority\SYSTEM</emphasis>.</para> <para>When set to <emphasis>everyone</emphasis>, an ACL is synthesized giving full permissions to everyone (S-1-1-0).</para> <para>The default for this option is <emphasis>everyone</emphasis>.</para> </listitem> </varlistentry> <varlistentry> <term>nfs4acl_xattr:xattr_name = STRING</term> <listitem> <para>This parameter configures the extended attribute name used to store the marshaled ACL.</para> <para>The default depends on the setting for <emphasis>nfs4acl_xattr:encoding</emphasis>.</para> </listitem> </varlistentry> <varlistentry> <term>nfs4acl_xattr:nfs4_id_numeric = yes|no (default: no)</term> <listitem> <para>This parameter tells the module how the NFS4 server encodes user and group identifiers on the network. With the default setting the module expects identifiers encoded as per the NFS4 RFC as user@domain.</para> <para>When set to <emphasis>yes</emphasis>, the module expects the identifiers as numeric string.</para> <para>The default for this options<emphasis>no</emphasis>.</para> </listitem> </varlistentry> <varlistentry> <term>nfs4acl_xattr:validate_mode = yes|no</term> <listitem> <para>This parameter configures whether the module enforces the POSIX mode is set to 0777 for directories and 0666 for files. If this constrained is not met, the xattr with the ACL blob is discarded.</para> <para>The default depends on the setting for <emphasis>nfs4acl_xattr:encoding</emphasis>: when set to <emphasis>nfs</emphasis> this setting is disabled by default, otherwise it is enabled.</para> </listitem> </varlistentry> </variablelist> </refsect1> <refsect1> <title>EXAMPLES</title> <para>A directory can be exported via Samba using this module as follows:</para> <programlisting> <smbconfsection name="[samba_gpfs_share]"/> <smbconfoption name="vfs objects">nfs4acl_xattr</smbconfoption> <smbconfoption name="path">/foo/bar</smbconfoption> </programlisting> </refsect1> <refsect1> <title>AUTHOR</title> <para>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.</para> </refsect1> </refentry> </ns:Root>