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6 <refentry id="smbcacls.1">
9 <refentrytitle>smbcacls</refentrytitle>
10 <manvolnum>1</manvolnum>
15 <refname>smbcacls</refname>
16 <refpurpose>Set or get ACLs on an NT file or directory names</refpurpose>
21 <command>smbcacls</command>
22 <arg choice="req">//server/share</arg>
23 <arg choice="req">filename</arg>
24 <arg choice="opt">-D acls</arg>
25 <arg choice="opt">-M acls</arg>
26 <arg choice="opt">-a acls</arg>
27 <arg choice="opt">-S acls</arg>
28 <arg choice="opt">-C name</arg>
29 <arg choice="opt">-G name</arg>
30 <arg choice="opt">--numeric</arg>
31 <arg choice="opt">-t</arg>
32 <arg choice="opt">-U username</arg>
33 <arg choice="opt">-h</arg>
34 <arg choice="opt">-d</arg>
39 <title>DESCRIPTION</title>
41 <para>This tool is part of the <citerefentry><refentrytitle>samba</refentrytitle>
42 <manvolnum>7</manvolnum></citerefentry> suite.</para>
44 <para>The <command>smbcacls</command> program manipulates NT Access Control
45 Lists (ACLs) on SMB file shares. </para>
50 <title>OPTIONS</title>
52 <para>The following options are available to the <command>smbcacls</command> program.
53 The format of ACLs is described in the section ACL FORMAT </para>
59 <listitem><para>Add the ACLs specified to the ACL list. Existing
60 access control entries are unchanged. </para></listitem>
67 <listitem><para>Modify the mask value (permissions) for the ACLs
68 specified on the command line. An error will be printed for each
69 ACL specified that was not already present in the ACL list
77 <listitem><para>Delete any ACLs specified on the command line.
78 An error will be printed for each ACL specified that was not
79 already present in the ACL list. </para></listitem>
86 <listitem><para>This command sets the ACLs on the file with
87 only the ones specified on the command line. All other ACLs are
88 erased. Note that the ACL specified must contain at least a revision,
89 type, owner and group for the call to succeed. </para></listitem>
95 <term>-U username</term>
96 <listitem><para>Specifies a username used to connect to the
97 specified service. The username may be of the form "username" in
98 which case the user is prompted to enter in a password and the
99 workgroup specified in the <citerefentry><refentrytitle>smb.conf</refentrytitle>
100 <manvolnum>5</manvolnum></citerefentry> file is
101 used, or "username%password" or "DOMAIN\username%password" and the
102 password and workgroup names are used as provided. </para></listitem>
109 <listitem><para>The owner of a file or directory can be changed
110 to the name given using the <parameter>-C</parameter> option.
111 The name can be a sid in the form S-1-x-y-z or a name resolved
112 against the server specified in the first argument. </para>
114 <para>This command is a shortcut for -M OWNER:name.
122 <listitem><para>The group owner of a file or directory can
123 be changed to the name given using the <parameter>-G</parameter>
124 option. The name can be a sid in the form S-1-x-y-z or a name
125 resolved against the server specified n the first argument.
128 <para>This command is a shortcut for -M GROUP:name.</para></listitem>
134 <term>--numeric</term>
135 <listitem><para>This option displays all ACL information in numeric
136 format. The default is to convert SIDs to names and ACE types
137 and masks to a readable string format. </para></listitem>
143 Don't actually do anything, only validate the correctness of
155 <title>ACL FORMAT</title>
157 <para>The format of an ACL is one or more ACL entries separated by
158 either commas or newlines. An ACL entry is one of the following: </para>
160 <para><programlisting>
161 REVISION:<revision number>
162 OWNER:<sid or name>
163 GROUP:<sid or name>
164 ACL:<sid or name>:<type>/<flags>/<mask>
165 </programlisting></para>
168 <para>The revision of the ACL specifies the internal Windows
169 NT ACL revision for the security descriptor.
170 If not specified it defaults to 1. Using values other than 1 may
171 cause strange behaviour. </para>
173 <para>The owner and group specify the owner and group sids for the
174 object. If a SID in the format CWS-1-x-y-z is specified this is used,
175 otherwise the name specified is resolved using the server on which
176 the file or directory resides. </para>
178 <para>ACLs specify permissions granted to the SID. This SID again
179 can be specified in CWS-1-x-y-z format or as a name in which case
180 it is resolved against the server on which the file or directory
181 resides. The type, flags and mask values determine the type of
182 access granted to the SID. </para>
184 <para>The type can be either 0 or 1 corresponding to ALLOWED or
185 DENIED access to the SID. The flags values are generally
186 zero for file ACLs and either 9 or 2 for directory ACLs. Some
187 common flags are: </para>
190 <listitem><para><constant>#define SEC_ACE_FLAG_OBJECT_INHERIT 0x1</constant></para></listitem>
191 <listitem><para><constant>#define SEC_ACE_FLAG_CONTAINER_INHERIT 0x2</constant></para></listitem>
192 <listitem><para><constant>#define SEC_ACE_FLAG_NO_PROPAGATE_INHERIT 0x4</constant></para></listitem>
193 <listitem><para><constant>#define SEC_ACE_FLAG_INHERIT_ONLY 0x8</constant></para></listitem>
196 <para>At present flags can only be specified as decimal or
197 hexadecimal values.</para>
199 <para>The mask is a value which expresses the access right
200 granted to the SID. It can be given as a decimal or hexadecimal value,
201 or by using one of the following text strings which map to the NT
202 file permissions of the same name. </para>
205 <listitem><para><emphasis>R</emphasis> - Allow read access </para></listitem>
206 <listitem><para><emphasis>W</emphasis> - Allow write access</para></listitem>
207 <listitem><para><emphasis>X</emphasis> - Execute permission on the object</para></listitem>
208 <listitem><para><emphasis>D</emphasis> - Delete the object</para></listitem>
209 <listitem><para><emphasis>P</emphasis> - Change permissions</para></listitem>
210 <listitem><para><emphasis>O</emphasis> - Take ownership</para></listitem>
214 <para>The following combined permissions can be specified:</para>
218 <listitem><para><emphasis>READ</emphasis> - Equivalent to 'RX'
219 permissions</para></listitem>
220 <listitem><para><emphasis>CHANGE</emphasis> - Equivalent to 'RXWD' permissions
222 <listitem><para><emphasis>FULL</emphasis> - Equivalent to 'RWXDPO'
223 permissions</para></listitem>
228 <title>EXIT STATUS</title>
230 <para>The <command>smbcacls</command> program sets the exit status
231 depending on the success or otherwise of the operations performed.
232 The exit status may be one of the following values. </para>
234 <para>If the operation succeeded, smbcacls returns and exit
235 status of 0. If <command>smbcacls</command> couldn't connect to the specified server,
236 or there was an error getting or setting the ACLs, an exit status
237 of 1 is returned. If there was an error parsing any command line
238 arguments, an exit status of 2 is returned. </para>
242 <title>VERSION</title>
244 <para>This man page is correct for version 3.0 of the Samba suite.</para>
248 <title>AUTHOR</title>
250 <para>The original Samba software and related utilities
251 were created by Andrew Tridgell. Samba is now developed
252 by the Samba Team as an Open Source project similar
253 to the way the Linux kernel is developed.</para>
255 <para><command>smbcacls</command> was written by Andrew Tridgell
256 and Tim Potter.</para>
258 <para>The conversion to DocBook for Samba 2.2 was done
259 by Gerald Carter. The conversion to DocBook XML 4.2 for Samba 3.0 was done
260 by Alexander Bokovoy.</para>