samba-mirror/docs-xml/manpages/smbcacls.1.xml

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<!DOCTYPE refentry PUBLIC "-//Samba-Team//DTD DocBook V4.2-Based Variant V1.0//EN" "http://www.samba.org/samba/DTD/samba-doc">
<refentry id="smbcacls.1">

<refmeta>
	<refentrytitle>smbcacls</refentrytitle>
	<manvolnum>1</manvolnum>
	<refmiscinfo class="source">Samba</refmiscinfo>
	<refmiscinfo class="manual">User Commands</refmiscinfo>
	<refmiscinfo class="version">4.1</refmiscinfo>
</refmeta>


<refnamediv>
	<refname>smbcacls</refname>
	<refpurpose>Set or get ACLs on an NT file or directory names</refpurpose>
</refnamediv>

<refsynopsisdiv>
	<cmdsynopsis>
		<command>smbcacls</command>
		<arg choice="req">//server/share</arg>
		<arg choice="req">/filename</arg>
		<arg choice="opt">-D|--delete acl</arg>
		<arg choice="opt">-M|--modify acl</arg>
		<arg choice="opt">-a|--add acl</arg>
		<arg choice="opt">-S|--set acl</arg>
		<arg choice="opt">-C|--chown name</arg>
		<arg choice="opt">-G|--chgrp name</arg>
		<arg choice="opt">-I allow|remove|copy</arg>
		<arg choice="opt">--numeric</arg>
		<arg choice="opt">-t</arg>
		<arg choice="opt">-U username</arg>
		<arg choice="opt">-h</arg>
		<arg choice="opt">-d</arg>
		<arg choice="opt">-e</arg>
		<arg choice="opt">-m|--max-protocol LEVEL</arg>
	</cmdsynopsis>
</refsynopsisdiv>

<refsect1>
	<title>DESCRIPTION</title>

	<para>This tool is part of the <citerefentry><refentrytitle>samba</refentrytitle>
	<manvolnum>7</manvolnum></citerefentry> suite.</para>

	<para>The <command>smbcacls</command> program manipulates NT Access Control
	Lists (ACLs) on SMB file shares. An ACL is comprised zero or more Access
	Control Entries (ACEs), which define access restrictions for a specific
	user or group.</para>
</refsect1>


<refsect1>
	<title>OPTIONS</title>

	<para>The following options are available to the <command>smbcacls</command> program.  
	The format of ACLs is described in the section ACL FORMAT </para>


	<variablelist>
		<varlistentry>
		<term>-a|--add acl</term>
		<listitem><para>Add the entries specified to the ACL.  Existing
		access control entries are unchanged.</para></listitem>
		</varlistentry>
		
		
		
		<varlistentry>
		<term>-M|--modify acl</term>
		<listitem><para>Modify the mask value (permissions) for the ACEs
		specified on the command line.  An error will be printed for each 
		ACE specified that was not already present in the object's ACL.
		</para></listitem>
		</varlistentry>
		
		
		
		<varlistentry>
		<term>-D|--delete acl</term>
		<listitem><para>Delete any ACEs specified on the command line.
		An error will be printed for each ACE specified that was not
		already present in the object's ACL. </para></listitem>
		</varlistentry>
		
		
		
		<varlistentry>
		<term>-S|--set acl</term>
		<listitem><para>This command sets the ACL on the object with
		only what is specified on the command line.  Any existing ACL
		is erased. Note that the ACL specified must contain at least a revision,
		type, owner and group for the call to succeed. </para></listitem>
		</varlistentry>
		
		
		
		<varlistentry>
		<term>-C|--chown name</term>
		<listitem><para>The owner of a file or directory can be changed 
		to the name given using the <parameter>-C</parameter> option.  
		The name can be a sid in the form S-1-x-y-z or a name resolved 
		against the server specified in the first argument. </para>
		
		<para>This command is a shortcut for -M OWNER:name. 
		</para></listitem>
		</varlistentry>
		
		
		
		<varlistentry>
		<term>-G|--chgrp name</term>
		<listitem><para>The group owner of a file or directory can 
		be changed to the name given using the <parameter>-G</parameter> 
		option.  The name can be a sid in the form S-1-x-y-z or a name 
		resolved against the server specified n the first argument.
		</para>
		
		<para>This command is a shortcut for -M GROUP:name.</para></listitem>
		</varlistentry>
		
		
		
		<varlistentry>
		<term>-I|--inherit allow|remove|copy</term>
		<listitem><para>Set or unset the windows "Allow inheritable
		permissions" check box using the <parameter>-I</parameter>
		option.  To set the check box pass allow. To unset the check
		box pass either remove or copy. Remove will remove all
		inherited acls. Copy will copy all the inherited acls.
		</para></listitem>

		</varlistentry>


		<varlistentry>
		<term>--numeric</term>
		<listitem><para>This option displays all ACL information in numeric 
		format.  The default is to convert SIDs to names and ACE types 
		and masks to a readable string format.  </para></listitem>
		</varlistentry>
		
		<varlistentry>
		<term>-e</term>
		<listitem><para>This command line parameter requires the remote
		server support the UNIX extensions or that the SMB3 protocol has been selected.
		Requests that the connection be encrypted. Negotiates SMB encryption using either
		SMB3 or POSIX extensions via GSSAPI. Uses the given credentials for
		the encryption negotiation (either kerberos or NTLMv1/v2 if given
		domain/username/password triple. Fails the connection if encryption
		cannot be negotiated.
		</para></listitem>
		</varlistentry>

		<varlistentry>
		<term>-m|--max-protocol PROTOCOL_NAME</term>
		<listitem><para>This allows the user to select the
		highest SMB protocol level that smbcacls will use to
		connect to the server. By default this is set to
		NT1, which is the highest available SMB1 protocol.
		To connect using SMB2 or SMB3 protocol, use the
		strings SMB2 or SMB3 respectively. Note that to connect
		to a Windows 2012 server with encrypted transport selecting
		a max-protocol of SMB3 is required.
		</para></listitem>
		</varlistentry>

		<varlistentry>
		<term>-t|--test-args</term>
		<listitem><para>
		Don't actually do anything, only validate the correctness of 
		the arguments.
		</para></listitem>
		</varlistentry>
				
		&stdarg.help;
		&stdarg.server.debug;
		&popt.common.samba;
		&popt.common.credentials;
	</variablelist>
</refsect1>


<refsect1>
	<title>ACL FORMAT</title>

	<para>The format of an ACL is one or more entries separated by
	either commas or newlines.  An ACL entry is one of the following: </para>

<para><programlisting> 
REVISION:&lt;revision number&gt;
OWNER:&lt;sid or name&gt;
GROUP:&lt;sid or name&gt;
ACL:&lt;sid or name&gt;:&lt;type&gt;/&lt;flags&gt;/&lt;mask&gt;
</programlisting></para>
  

	<para>The revision of the ACL specifies the internal Windows 
	NT ACL revision for the security descriptor.  
	If not specified it defaults to 1.  Using values other than 1 may 
	cause strange behaviour. </para>

	<para>The owner and group specify the owner and group sids for the 
	object.  If a SID in the format S-1-x-y-z is specified this is used, 
	otherwise the name specified is resolved using the server on which 
	the file or directory resides. </para>

	<para>ACEs are specified with an "ACL:" prefix, and define permissions
	granted to an SID.  The SID again can be specified in S-1-x-y-z format
	or as a name in which case it is resolved against the server on which
	the file or directory resides.  The type, flags and mask values
	determine the type of access granted to the SID. </para>

	<para>The type can be either ALLOWED or	DENIED to allow/deny access 
	to the SID. The flags values are generally zero for file ACEs and
	either 9 or 2 for directory ACEs.  Some common flags are: </para>

	<itemizedlist> 
		<listitem><para><constant>#define SEC_ACE_FLAG_OBJECT_INHERIT     	0x1</constant></para></listitem>
		<listitem><para><constant>#define SEC_ACE_FLAG_CONTAINER_INHERIT  	0x2</constant></para></listitem>
		<listitem><para><constant>#define SEC_ACE_FLAG_NO_PROPAGATE_INHERIT     0x4</constant></para></listitem>
		<listitem><para><constant>#define SEC_ACE_FLAG_INHERIT_ONLY       	0x8</constant></para></listitem>
 	</itemizedlist>
  
	<para>At present, flags can only be specified as decimal or
	hexadecimal values.</para>
 
	<para>The mask is a value which expresses the access right 
	granted to the SID. It can be given as a decimal or hexadecimal value, 
	or by using one of the following text strings which map to the NT 
	file permissions of the same name. </para>

	<itemizedlist>
		<listitem><para><emphasis>R</emphasis> - Allow read access </para></listitem>
		<listitem><para><emphasis>W</emphasis> - Allow write access</para></listitem>
		<listitem><para><emphasis>X</emphasis> - Execute permission on the object</para></listitem>
		<listitem><para><emphasis>D</emphasis> - Delete the object</para></listitem>
		<listitem><para><emphasis>P</emphasis> - Change permissions</para></listitem>
		<listitem><para><emphasis>O</emphasis> - Take ownership</para></listitem>
	</itemizedlist>


	<para>The following combined permissions can be specified:</para>


	<itemizedlist>
		<listitem><para><emphasis>READ</emphasis> -  Equivalent to 'RX'
		permissions</para></listitem>
		<listitem><para><emphasis>CHANGE</emphasis> - Equivalent to 'RXWD' permissions
		</para></listitem>
		<listitem><para><emphasis>FULL</emphasis> - Equivalent to 'RWXDPO' 
		permissions</para></listitem>
	</itemizedlist>
	</refsect1>

<refsect1>
	<title>EXIT STATUS</title>

	<para>The <command>smbcacls</command> program sets the exit status 
	depending on the success or otherwise of the operations performed.  
	The exit status may be one of the following values. </para>

	<para>If the operation succeeded, smbcacls returns and exit 
	status of 0.  If <command>smbcacls</command> couldn't connect to the specified server, 
	or there was an error getting or setting the ACLs, an exit status 
	of 1 is returned.  If there was an error parsing any command line 
	arguments, an exit status of 2 is returned. </para>
</refsect1>

<refsect1>
	<title>VERSION</title>

	<para>This man page is correct for version 4 of the Samba suite.</para>
</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>
	
	<para><command>smbcacls</command> was written by Andrew Tridgell 
	and Tim Potter.</para>
	
	<para>The conversion to DocBook for Samba 2.2 was done 
	by Gerald Carter. The conversion to DocBook XML 4.2 for Samba 3.0 was done
	by Alexander Bokovoy.</para>
</refsect1>

</refentry>