wpa_supplicant/doc/docbook/wpa_cli.sgml

   1 <!doctype refentry PUBLIC "-//OASIS//DTD DocBook V4.1//EN">
   2
   3 <refentry>
   4   <refmeta>
   5     <refentrytitle>wpa_cli</refentrytitle>
   6     <manvolnum>8</manvolnum>
   7   </refmeta>
   8   <refnamediv>
   9     <refname>wpa_cli</refname>
  10
  11     <refpurpose>WPA command line client</refpurpose>
  12   </refnamediv>
  13
  14   <refsynopsisdiv>
  15     <cmdsynopsis>
  16       <command>wpa_cli</command>
  17       <arg>-p <replaceable>path to ctrl sockets</replaceable></arg>
  18       <arg>-g <replaceable>path to global ctrl_interface socket</replaceable></arg>
  19       <arg>-i <replaceable>ifname</replaceable></arg>
  20       <arg>-hvB</arg>
  21       <arg>-a <replaceable>action file</replaceable></arg>
  22       <arg>-P <replaceable>pid file</replaceable></arg>
  23       <arg>-G <replaceable>ping interval</replaceable></arg>
  24       <arg><replaceable>command ...</replaceable></arg>
  25     </cmdsynopsis>
  26   </refsynopsisdiv>
  27
  28   <refsect1>
  29     <title>Overview</title>
  30
  31     <para>wpa_cli is a text-based frontend program for interacting
  32     with wpa_supplicant. It is used to query current status, change
  33     configuration, trigger events, and request interactive user
  34     input.</para>
  35
  36     <para>wpa_cli can show the current authentication status, selected
  37     security mode, dot11 and dot1x MIBs, etc. In addition, it can
  38     configure some variables like EAPOL state machine parameters and
  39     trigger events like reassociation and IEEE 802.1X
  40     logoff/logon. wpa_cli provides a user interface to request
  41     authentication information, like username and password, if these
  42     are not included in the configuration. This can be used to
  43     implement, e.g., one-time-passwords or generic token card
  44     authentication where the authentication is based on a
  45     challenge-response that uses an external device for generating the
  46     response.</para>
  47
  48     <para>The control interface of wpa_supplicant can be configured to
  49     allow non-root user access (ctrl_interface GROUP= parameter in the
  50     configuration file). This makes it possible to run wpa_cli with a
  51     normal user account.</para>
  52
  53     <para>wpa_cli supports two modes: interactive and command
  54     line. Both modes share the same command set and the main
  55     difference is in interactive mode providing access to unsolicited
  56     messages (event messages, username/password requests).</para>
  57
  58     <para>Interactive mode is started when wpa_cli is executed without
  59     including the command as a command line parameter. Commands are
  60     then entered on the wpa_cli prompt. In command line mode, the same
  61     commands are entered as command line arguments for wpa_cli.</para>
  62  </refsect1>
  63  <refsect1>
  64    <title>Interactive authentication parameters request</title>
  65
  66    <para>When wpa_supplicant need authentication parameters, like
  67    username and password, which are not present in the configuration
  68    file, it sends a request message to all attached frontend programs,
  69    e.g., wpa_cli in interactive mode. wpa_cli shows these requests
  70    with "CTRL-REQ-&lt;type&gt;-&lt;id&gt;:&lt;text&gt;"
  71    prefix. &lt;type&gt; is IDENTITY, PASSWORD, or OTP
  72    (one-time-password). &lt;id&gt; is a unique identifier for the
  73    current network. &lt;text&gt; is description of the request. In
  74    case of OTP request, it includes the challenge from the
  75    authentication server.</para>
  76
  77     <para>The reply to these requests can be given with
  78     <emphasis>identity</emphasis>, <emphasis>password</emphasis>, and
  79     <emphasis>otp</emphasis> commands. &lt;id&gt; needs to be copied from
  80     the matching request. <emphasis>password</emphasis> and
  81     <emphasis>otp</emphasis> commands can be used regardless of whether
  82     the request was for PASSWORD or OTP. The main difference between these
  83     two commands is that values given with <emphasis>password</emphasis> are
  84     remembered as long as wpa_supplicant is running whereas values given
  85     with <emphasis>otp</emphasis> are used only once and then forgotten,
  86     i.e., wpa_supplicant will ask frontend for a new value for every use.
  87     This can be used to implement one-time-password lists and generic token
  88     card -based authentication.</para>
  89
  90     <para>Example request for password and a matching reply:</para>
  91
  92 <blockquote><programlisting>
  93 CTRL-REQ-PASSWORD-1:Password needed for SSID foobar
  94 > password 1 mysecretpassword
  95 </programlisting></blockquote>
  96
  97     <para>Example request for generic token card challenge-response:</para>
  98
  99 <blockquote><programlisting>
 100 CTRL-REQ-OTP-2:Challenge 1235663 needed for SSID foobar
 101 > otp 2 9876
 102 </programlisting></blockquote>
 103
 104   </refsect1>
 105   <refsect1>
 106     <title>Command Arguments</title>
 107     <variablelist>
 108       <varlistentry>
 109         <term>-p path</term>
 110
 111         <listitem><para>Change the path where control sockets should
 112         be found.</para></listitem>
 113       </varlistentry>
 114
 115       <varlistentry>
 116         <term>-g control socket path</term>
 117
 118         <listitem><para>Connect to the global control socket at the
 119         indicated path rather than an interface-specific control
 120         socket.</para></listitem>
 121       </varlistentry>
 122
 123       <varlistentry>
 124         <term>-i ifname</term>
 125
 126         <listitem><para>Specify the interface that is being
 127         configured.  By default, choose the first interface found with
 128         a control socket in the socket path.</para></listitem>
 129       </varlistentry>
 130
 131       <varlistentry>
 132         <term>-h</term>
 133         <listitem><para>Help.  Show a usage message.</para></listitem>
 134       </varlistentry>
 135
 136
 137       <varlistentry>
 138         <term>-v</term>
 139         <listitem><para>Show version information.</para></listitem>
 140       </varlistentry>
 141
 142
 143       <varlistentry>
 144         <term>-B</term>
 145         <listitem><para>Run as a daemon in the background.</para></listitem>
 146       </varlistentry>
 147
 148       <varlistentry>
 149         <term>-a file</term>
 150
 151         <listitem><para>Run in daemon mode executing the action file
 152         based on events from wpa_supplicant.  The specified file will
 153         be executed with the first argument set to interface name and
 154         second to "CONNECTED" or "DISCONNECTED" depending on the event.
 155         This can be used to execute networking tools required to configure
 156         the interface.</para>
 157
 158         <para>Additionally, three environmental variables are available to
 159         the file: WPA_CTRL_DIR, WPA_ID, and WPA_ID_STR. WPA_CTRL_DIR
 160         contains the absolute path to the ctrl_interface socket. WPA_ID
 161         contains the unique network_id identifier assigned to the active
 162         network, and WPA_ID_STR contains the content of the id_str option.
 163         </para></listitem>
 164       </varlistentry>
 165
 166       <varlistentry>
 167         <term>-P file</term>
 168
 169         <listitem><para>Set the location of the PID
 170         file.</para></listitem>
 171       </varlistentry>
 172
 173       <varlistentry>
 174         <term>-G ping interval</term>
 175
 176         <listitem><para>Set the interval (in seconds) at which
 177         wpa_cli pings the supplicant.</para></listitem>
 178       </varlistentry>
 179
 180       <varlistentry>
 181         <term>command</term>
 182
 183         <listitem><para>Run a command.  The available commands are
 184         listed in the next section.</para></listitem>
 185
 186       </varlistentry>
 187     </variablelist>
 188   </refsect1>
 189   <refsect1>
 190     <title>Commands</title>
 191     <para>The following commands are available:</para>
 192
 193     <variablelist>
 194       <varlistentry>
 195         <term>status</term>
 196         <listitem>
 197           <para>get current WPA/EAPOL/EAP status</para>
 198         </listitem>
 199       </varlistentry>
 200
 201       <varlistentry>
 202         <term>mib</term>
 203         <listitem>
 204           <para>get MIB variables (dot1x, dot11)</para>
 205         </listitem>
 206       </varlistentry>
 207
 208       <varlistentry>
 209         <term>help</term>
 210         <listitem>
 211           <para>show this usage help</para>
 212         </listitem>
 213       </varlistentry>
 214
 215       <varlistentry>
 216         <term>interface [ifname]</term>
 217         <listitem>
 218           <para>show interfaces/select interface</para>
 219         </listitem>
 220       </varlistentry>
 221
 222       <varlistentry>
 223         <term>level &lt;debug level&gt;</term>
 224         <listitem>
 225           <para>change debug level</para>
 226         </listitem>
 227       </varlistentry>
 228
 229       <varlistentry>
 230         <term>license</term>
 231         <listitem>
 232           <para>show full wpa_cli license</para>
 233         </listitem>
 234       </varlistentry>
 235
 236       <varlistentry>
 237         <term>logoff</term>
 238         <listitem>
 239           <para>IEEE 802.1X EAPOL state machine logoff</para>
 240         </listitem>
 241       </varlistentry>
 242
 243       <varlistentry>
 244         <term>logon</term>
 245         <listitem>
 246           <para>IEEE 802.1X EAPOL state machine logon</para>
 247         </listitem>
 248       </varlistentry>
 249
 250       <varlistentry>
 251         <term>set</term>
 252         <listitem>
 253           <para>set variables (shows list of variables when run without arguments)</para>
 254         </listitem>
 255       </varlistentry>
 256       <varlistentry>
 257         <term>pmksa</term>
 258         <listitem>
 259           <para>show PMKSA cache</para>
 260         </listitem>
 261       </varlistentry>
 262       <varlistentry>
 263         <term>reassociate</term>
 264         <listitem>
 265           <para>force reassociation</para>
 266         </listitem>
 267       </varlistentry>
 268       <varlistentry>
 269         <term>reconfigure</term>
 270         <listitem>
 271           <para>force wpa_supplicant to re-read its configuration file</para>
 272         </listitem>
 273       </varlistentry>
 274
 275       <varlistentry>
 276         <term>preauthenticate &lt;BSSID&gt;</term>
 277         <listitem>
 278           <para>force preauthentication</para>
 279         </listitem>
 280       </varlistentry>
 281
 282       <varlistentry>
 283         <term>identity &lt;network id&gt; &lt;identity&gt;</term>
 284         <listitem>
 285           <para>configure identity for an SSID</para>
 286         </listitem>
 287       </varlistentry>
 288
 289       <varlistentry>
 290         <term>password &lt;network id&gt; &lt;password&gt;</term>
 291         <listitem>
 292           <para>configure password for an SSID</para>
 293         </listitem>
 294       </varlistentry>
 295
 296       <varlistentry>
 297         <term>pin &lt;network id&gt; &lt;pin&gt;</term>
 298         <listitem>
 299           <para>configure pin for an SSID</para>
 300         </listitem>
 301       </varlistentry>
 302
 303       <varlistentry>
 304         <term>otp &lt;network id&gt; &lt;password&gt;</term>
 305         <listitem>
 306           <para>configure one-time-password for an SSID</para>
 307         </listitem>
 308       </varlistentry>
 309
 310       <varlistentry>
 311         <term>bssid &lt;network id&gt; &lt;BSSID&gt;</term>
 312         <listitem>
 313           <para>set preferred BSSID for an SSID</para>
 314         </listitem>
 315       </varlistentry>
 316
 317       <varlistentry>
 318         <term>list_networks</term>
 319         <listitem>
 320           <para>list configured networks</para>
 321         </listitem>
 322       </varlistentry>
 323
 324       <varlistentry>
 325         <term>terminate</term>
 326         <listitem>
 327           <para>terminate <command>wpa_supplicant</command></para>
 328         </listitem>
 329       </varlistentry>
 330
 331       <varlistentry>
 332         <term>quit</term>
 333         <listitem><para>exit wpa_cli</para></listitem>
 334       </varlistentry>
 335     </variablelist>
 336   </refsect1>
 337   <refsect1>
 338     <title>See Also</title>
 339     <para>
 340       <citerefentry>
 341         <refentrytitle>wpa_supplicant</refentrytitle>
 342         <manvolnum>8</manvolnum>
 343       </citerefentry>
 344     </para>
 345   </refsect1>
 346   <refsect1>
 347     <title>Legal</title>
 348     <para>wpa_supplicant is copyright (c) 2003-2016,
 349     Jouni Malinen <email>j@w1.fi</email> and
 350     contributors.
 351     All Rights Reserved.</para>
 352
 353     <para>This program is licensed under the BSD license (the one with
 354     advertisement clause removed).</para>
 355   </refsect1>
 356 </refentry>