xref: /freebsd/contrib/wpa/wpa_supplicant/doc/docbook/wpa_supplicant.sgml (revision 5b56413d04e608379c9a306373554a8e4d321bc0)
1<!doctype refentry PUBLIC "-//OASIS//DTD DocBook V4.1//EN">
2
3<refentry>
4  <refentryinfo>
5    <date>1 February 2023</date>
6  </refentryinfo>
7
8  <refmeta>
9    <refentrytitle>wpa_supplicant</refentrytitle>
10    <manvolnum>8</manvolnum>
11  </refmeta>
12  <refnamediv>
13    <refname>wpa_supplicant</refname>
14    <refpurpose>Wi-Fi Protected Access client and IEEE 802.1X supplicant</refpurpose>
15  </refnamediv>
16  <refsynopsisdiv>
17    <cmdsynopsis>
18      <command>wpa_supplicant</command>
19      <arg>-BddfhKLqqsTtuvW</arg>
20      <arg>-i<replaceable>ifname</replaceable></arg>
21      <arg>-c<replaceable>config file</replaceable></arg>
22      <arg>-D<replaceable>driver</replaceable></arg>
23      <arg>-P<replaceable>PID_file</replaceable></arg>
24      <arg>-f<replaceable>output file</replaceable></arg>
25      <arg>-I<replaceable>additional config file</replaceable></arg>
26    </cmdsynopsis>
27  </refsynopsisdiv>
28  <refsect1>
29    <title>Overview</title>
30
31    <para>
32    Wireless networks do not require physical access to the network equipment
33    in the same way that wired networks do. This makes it easier for unauthorized
34    users to passively monitor a network and capture all transmitted frames.
35    In addition, unauthorized use of the network is much easier. In many cases,
36    this can happen even without user's explicit knowledge since the wireless
37    LAN adapter may have been configured to automatically join any available
38    network.
39    </para>
40
41    <para>
42    Link-layer encryption can be used to provide a layer of security for
43    wireless networks. The original wireless LAN standard, IEEE 802.11,
44    included a simple encryption mechanism, WEP. However, that proved to
45    be flawed in many areas and networks protected with WEP cannot be considered
46    secure. IEEE 802.1X authentication and frequently changed dynamic WEP keys
47    can be used to improve the network security, but even that has inherited
48    security issues due to the use of WEP for encryption. Wi-Fi Protected
49    Access and the IEEE 802.11i amendment to the wireless LAN standard introduce
50    a much improved mechanism for securing wireless networks. IEEE 802.11i
51    enabled networks that are using CCMP (an encryption mechanism based on the strong
52    cryptographic algorithm AES) can finally be called secure and used for
53    applications which require efficient protection against unauthorized
54    access.
55    </para>
56
57    <para><command>wpa_supplicant</command> is an implementation of
58    the WPA Supplicant component, i.e., the part that runs in the
59    client stations. It implements WPA key negotiation with a WPA
60    Authenticator and EAP authentication with Authentication
61    Server. In addition, it controls the roaming and IEEE 802.11
62    authentication/association of the wireless LAN driver.</para>
63
64    <para><command>wpa_supplicant</command> is designed to be a
65    "daemon" program that runs in the background and acts as the
66    backend component controlling the wireless
67    connection. <command>wpa_supplicant</command> supports separate
68    frontend programs and an example text-based frontend,
69    <command>wpa_cli</command>, is included with
70    wpa_supplicant.</para>
71
72    <para>Before wpa_supplicant can do its work, the network interface
73    must be available. That means that the physical device must be
74    present and enabled, and the driver for the device must be
75    loaded. The daemon will exit immediately if the device is not already
76    available.</para>
77
78    <para>After <command>wpa_supplicant</command> has configured the
79    network device, higher level configuration of the device, such as DHCP, may
80    proceed.  There are a variety of ways to integrate wpa_supplicant
81    into a machine's networking scripts, a few of which are described
82    in sections below.</para>
83
84    <para>The following steps are used when associating with an AP
85    using WPA:</para>
86
87    <itemizedlist>
88      <listitem>
89	<para><command>wpa_supplicant</command> requests the kernel
90	driver to scan neighboring BSSes (Basic Service Set)</para>
91      </listitem>
92
93      <listitem>
94	<para><command>wpa_supplicant</command> selects a BSS based on
95	its configuration</para>
96      </listitem>
97
98      <listitem>
99	<para><command>wpa_supplicant</command> requests the kernel
100        driver to associate with the chosen BSS</para>
101      </listitem>
102
103      <listitem>
104	<para>If WPA-EAP: integrated IEEE 802.1X Supplicant
105        completes EAP authentication with the
106        authentication server (proxied by the Authenticator in the
107        AP)</para>
108      </listitem>
109
110      <listitem>
111	<para>If WPA-EAP: master key is received from the IEEE 802.1X
112	Supplicant</para>
113      </listitem>
114
115      <listitem>
116	<para>If WPA-PSK: <command>wpa_supplicant</command> uses PSK
117	as the master session key</para>
118      </listitem>
119
120      <listitem>
121	<para><command>wpa_supplicant</command> completes WPA 4-Way
122        Handshake and Group Key Handshake with the Authenticator
123        (AP)</para>
124      </listitem>
125
126      <listitem>
127	<para><command>wpa_supplicant</command> configures encryption
128	keys for unicast and broadcast</para>
129      </listitem>
130
131      <listitem>
132	<para>normal data packets can be transmitted and received</para>
133      </listitem>
134    </itemizedlist>
135  </refsect1>
136
137  <refsect1>
138    <title>Supported Features</title>
139    <para>Supported WPA/IEEE 802.11i features:</para>
140    <itemizedlist>
141      <listitem>
142	<para>WPA-PSK ("WPA-Personal")</para>
143      </listitem>
144
145      <listitem>
146	<para>WPA with EAP (e.g., with RADIUS authentication server)
147       ("WPA-Enterprise") Following authentication methods are
148       supported with an integrate IEEE 802.1X Supplicant:</para>
149
150	<itemizedlist>
151	  <listitem>
152	    <para>EAP-TLS</para>
153	  </listitem>
154	</itemizedlist>
155
156	<itemizedlist>
157	  <listitem>
158	    <para>EAP-PEAP/MSCHAPv2 (both PEAPv0 and PEAPv1)</para>
159	  </listitem>
160
161
162	  <listitem>
163	    <para>EAP-PEAP/TLS (both PEAPv0 and PEAPv1)</para>
164	  </listitem>
165
166	  <listitem>
167	    <para>EAP-PEAP/GTC (both PEAPv0 and PEAPv1)</para>
168	  </listitem>
169
170	  <listitem>
171	    <para>EAP-PEAP/OTP (both PEAPv0 and PEAPv1)</para>
172	  </listitem>
173
174	  <listitem>
175	    <para>EAP-PEAP/MD5-Challenge (both PEAPv0 and PEAPv1)</para>
176	  </listitem>
177
178	  <listitem>
179	    <para>EAP-TTLS/EAP-MD5-Challenge</para>
180	  </listitem>
181
182	  <listitem>
183	    <para>EAP-TTLS/EAP-GTC</para>
184	  </listitem>
185
186          <listitem><para>EAP-TTLS/EAP-OTP</para></listitem>
187
188          <listitem><para>EAP-TTLS/EAP-MSCHAPv2</para></listitem>
189
190          <listitem><para>EAP-TTLS/EAP-TLS</para></listitem>
191
192          <listitem><para>EAP-TTLS/MSCHAPv2</para></listitem>
193
194          <listitem><para>EAP-TTLS/MSCHAP</para></listitem>
195
196          <listitem><para>EAP-TTLS/PAP</para></listitem>
197
198          <listitem><para>EAP-TTLS/CHAP</para></listitem>
199
200          <listitem><para>EAP-SIM</para></listitem>
201
202          <listitem><para>EAP-AKA</para></listitem>
203
204          <listitem><para>EAP-PSK</para></listitem>
205
206          <listitem><para>EAP-PAX</para></listitem>
207
208          <listitem><para>LEAP (note: requires special support from
209          the driver for IEEE 802.11 authentication)</para></listitem>
210
211          <listitem><para>(following methods are supported, but since
212          they do not generate keying material, they cannot be used
213          with WPA or IEEE 802.1X WEP keying)</para></listitem>
214
215          <listitem><para>EAP-MD5-Challenge </para></listitem>
216
217          <listitem><para>EAP-MSCHAPv2</para></listitem>
218
219          <listitem><para>EAP-GTC</para></listitem>
220
221          <listitem><para>EAP-OTP</para></listitem>
222	</itemizedlist>
223      </listitem>
224
225      <listitem>
226	<para>key management for CCMP, TKIP, WEP104, WEP40</para>
227      </listitem>
228
229      <listitem>
230	<para>RSN/WPA2 (IEEE 802.11i)</para>
231	<itemizedlist>
232	  <listitem>
233	    <para>pre-authentication</para>
234	  </listitem>
235
236	  <listitem>
237	    <para>PMKSA caching</para>
238	  </listitem>
239	</itemizedlist>
240      </listitem>
241    </itemizedlist>
242  </refsect1>
243
244  <refsect1>
245    <title>Available Drivers</title>
246    <para>A summary of available driver backends is below. Support for each
247    of the driver backends is chosen at wpa_supplicant compile time. For a
248    list of supported driver backends that may be used with the -D option on
249    your system, refer to the help output of wpa_supplicant
250    (<emphasis>wpa_supplicant -h</emphasis>).</para>
251
252    <variablelist>
253      <varlistentry>
254	<term>nl80211</term>
255	<listitem>
256	  <para>Uses the modern Linux nl80211/cfg80211 netlink-based
257	  interface (most new drivers).</para>
258	</listitem>
259      </varlistentry>
260
261      <varlistentry>
262	<term>wext</term>
263	<listitem>
264	  <para>Uses the legacy Linux wireless extensions ioctl-based
265	  interface (older hardware/drivers).</para>
266	</listitem>
267      </varlistentry>
268
269      <varlistentry>
270	<term>wired</term>
271	<listitem>
272	  <para>wpa_supplicant wired Ethernet driver</para>
273	</listitem>
274      </varlistentry>
275
276      <varlistentry>
277	<term>macsec_linux</term>
278	<listitem>
279	  <para>MACsec Ethernet driver for Linux</para>
280	</listitem>
281      </varlistentry>
282
283      <varlistentry>
284	<term>roboswitch</term>
285	<listitem>
286	  <para>wpa_supplicant Broadcom switch driver</para>
287	</listitem>
288      </varlistentry>
289
290      <varlistentry>
291	<term>none</term>
292	<listitem>
293	  <para>no driver (RADIUS server/WPS ER only)</para>
294	</listitem>
295      </varlistentry>
296
297      <varlistentry>
298	<term>bsd</term>
299	<listitem>
300	  <para>BSD 802.11 support (Atheros, etc.).</para>
301	</listitem>
302      </varlistentry>
303
304      <varlistentry>
305	<term>ndis</term>
306	<listitem>
307	  <para>Windows NDIS driver.</para>
308	</listitem>
309      </varlistentry>
310    </variablelist>
311  </refsect1>
312
313  <refsect1>
314    <title>Command Line Options</title>
315    <para>Most command line options have global scope. Some are given per
316    interface, and are only valid if at least one <option>-i</option> option
317    is specified, otherwise they're ignored. Option groups for different
318    interfaces must be separated by <option>-N</option> option.</para>
319    <variablelist>
320      <varlistentry>
321	<term>-b br_ifname</term>
322	<listitem>
323	  <para>Optional bridge interface name. (Per interface)</para>
324	</listitem>
325      </varlistentry>
326
327      <varlistentry>
328	<term>-B</term>
329	<listitem>
330	  <para>Run daemon in the background.</para>
331	</listitem>
332      </varlistentry>
333
334      <varlistentry>
335	<term>-c filename</term>
336	<listitem>
337	  <para>Path to configuration file. (Per interface)</para>
338	</listitem>
339      </varlistentry>
340
341      <varlistentry>
342	<term>-C ctrl_interface</term>
343	<listitem>
344	  <para>Path to ctrl_interface socket (Per interface. Only used if
345		  <option>-c</option> is not).</para>
346	</listitem>
347      </varlistentry>
348
349      <varlistentry>
350	<term>-i ifname</term>
351	<listitem>
352	  <para>Interface to listen on. Multiple instances of this option can
353	  be present, one per interface, separated by <option>-N</option>
354	  option (see below).</para>
355	</listitem>
356      </varlistentry>
357
358      <varlistentry>
359	<term>-I filename</term>
360	<listitem>
361          <para>Path to additional configuration file.</para>
362	</listitem>
363      </varlistentry>
364
365      <varlistentry>
366	<term>-d</term>
367	<listitem>
368	  <para>Increase debugging verbosity (<option>-dd</option> even
369		  more).</para>
370	</listitem>
371      </varlistentry>
372
373      <varlistentry>
374	<term>-D driver</term>
375	<listitem>
376	  <para>Driver to use (can be multiple drivers: nl80211,wext).
377		  (Per interface, see the available options below.)</para>
378	</listitem>
379      </varlistentry>
380
381      <varlistentry>
382	<term>-e entropy file</term>
383	<listitem>
384	  <para>File for <command>wpa_supplicant</command> to use to
385	  maintain its internal entropy store in over restarts.</para>
386	</listitem>
387      </varlistentry>
388
389      <varlistentry>
390	<term>-f output file</term>
391	<listitem>
392	  <para>Log output to specified file instead of stdout. (This
393	  is only available if <command>wpa_supplicant</command> was
394	  built with the <literal>CONFIG_DEBUG_FILE</literal>
395	  option.)</para>
396	</listitem>
397      </varlistentry>
398
399      <varlistentry>
400	<term>-g global ctrl_interface</term>
401	<listitem>
402	  <para>Path to global ctrl_interface socket. If specified, interface
403	  definitions may be omitted.</para>
404	</listitem>
405      </varlistentry>
406
407      <varlistentry>
408	<term>-K</term>
409	<listitem>
410	  <para>Include keys (passwords, etc.) in debug output.</para>
411	</listitem>
412      </varlistentry>
413
414      <varlistentry>
415	<term>-h</term>
416	<listitem>
417	  <para>Help.  Show a usage message.</para>
418	</listitem>
419      </varlistentry>
420
421      <varlistentry>
422	<term>-L</term>
423	<listitem>
424	  <para>Show license (BSD).</para>
425	</listitem>
426      </varlistentry>
427
428      <varlistentry>
429	<term>-o override driver</term>
430	<listitem>
431	  <para>Override the driver parameter for new
432	  interfaces.</para>
433	</listitem>
434      </varlistentry>
435
436      <varlistentry>
437	<term>-O override ctrl_interface</term>
438	<listitem>
439	  <para>Override the ctrl_interface parameter for new
440	  interfaces.</para>
441	</listitem>
442      </varlistentry>
443
444      <varlistentry>
445	<term>-p</term>
446	<listitem>
447	  <para>Driver parameters. (Per interface)</para>
448	</listitem>
449      </varlistentry>
450
451      <varlistentry>
452	<term>-P PID_file</term>
453	<listitem>
454	  <para>Path to PID file.</para>
455	</listitem>
456      </varlistentry>
457
458      <varlistentry>
459	<term>-q</term>
460	<listitem>
461	  <para>Decrease debugging verbosity (<option>-qq</option> even
462		  less).</para>
463	</listitem>
464      </varlistentry>
465
466      <varlistentry>
467	<term>-s</term>
468	<listitem>
469	  <para>Log output to syslog instead of stdout. (This is only
470	  available if <command>wpa_supplicant</command> was built
471	  with the <literal>CONFIG_DEBUG_SYSLOG</literal>
472	  option.)</para>
473	</listitem>
474      </varlistentry>
475
476      <varlistentry>
477	<term>-T</term>
478	<listitem>
479	  <para>Log output to Linux tracing in addition to any other
480	  destinations. (This is only available
481	  if <command>wpa_supplicant</command> was built with
482	  the <literal>CONFIG_DEBUG_LINUX_TRACING</literal>
483	  option.)</para>
484	</listitem>
485      </varlistentry>
486
487      <varlistentry>
488	<term>-t</term>
489	<listitem>
490	  <para>Include timestamp in debug messages.</para>
491	</listitem>
492      </varlistentry>
493
494      <varlistentry>
495	<term>-u</term>
496	<listitem>
497	  <para>Enable DBus control interface. If enabled, interface
498	  definitions may be omitted. (This is only available
499	  if <command>wpa_supplicant</command> was built with
500	  the <literal>CONFIG_CTRL_IFACE_DBUS_NEW</literal> option.)</para>
501	</listitem>
502      </varlistentry>
503
504      <varlistentry>
505	<term>-v</term>
506	<listitem>
507	  <para>Show version.</para>
508	</listitem>
509      </varlistentry>
510
511      <varlistentry>
512	<term>-W</term>
513	<listitem>
514	  <para>Wait for a control interface monitor before starting.</para>
515	</listitem>
516      </varlistentry>
517
518      <varlistentry>
519	<term>-N</term>
520	<listitem>
521	  <para>Start describing new interface.</para>
522	</listitem>
523      </varlistentry>
524    </variablelist>
525  </refsect1>
526
527  <refsect1>
528    <title>Examples</title>
529
530    <para>In most common cases, <command>wpa_supplicant</command> is
531    started with:</para>
532
533<blockquote><programlisting>
534wpa_supplicant -B -c/etc/wpa_supplicant.conf -iwlan0
535</programlisting></blockquote>
536
537    <para>This makes the process fork into the background.</para>
538
539    <para>The easiest way to debug problems, and to get a debug log for
540    bug reports, is to start <command>wpa_supplicant</command> in the
541    foreground with debugging enabled:</para>
542
543<blockquote><programlisting>
544wpa_supplicant -c/etc/wpa_supplicant.conf -iwlan0 -d
545</programlisting></blockquote>
546
547    <para>If the specific driver wrapper is not known beforehand, it is
548    possible to specify multiple comma separated driver wrappers on the command
549    line. <command>wpa_supplicant</command> will use the first driver
550    wrapper that is able to initialize the interface.</para>
551
552<blockquote><programlisting>
553wpa_supplicant -Dnl80211,wext -c/etc/wpa_supplicant.conf -iwlan0
554</programlisting></blockquote>
555
556    <para><command>wpa_supplicant</command> can control multiple
557    interfaces (radios) either by running one process for each
558    interface separately or by running just one process and list of
559    options at command line. Each interface is separated with -N
560    argument. As an example, following command would start
561    wpa_supplicant for two interfaces:</para>
562
563<blockquote><programlisting>
564wpa_supplicant \
565	-c wpa1.conf -i wlan0 -D nl80211 -N \
566	-c wpa2.conf -i ath0 -D wext
567</programlisting></blockquote>
568  </refsect1>
569
570  <refsect1>
571    <title>OS Requirements</title>
572    <para>Current hardware/software requirements:</para>
573
574    <itemizedlist>
575      <listitem>
576	<para>Linux kernel 2.6.30 or higher with
577	nl80211/cfg80211 support</para>
578      </listitem>
579
580      <listitem>
581	<para>Linux kernel 2.4.x or higher with Linux Wireless
582	Extensions v15 or newer</para>
583      </listitem>
584
585      <listitem>
586	<para>FreeBSD 6-CURRENT</para>
587      </listitem>
588
589      <listitem>
590	<para>Microsoft Windows with WinPcap (at least WinXP, may work
591	with other versions)</para>
592      </listitem>
593    </itemizedlist>
594  </refsect1>
595
596  <refsect1>
597    <title>Supported Drivers</title>
598    <variablelist>
599      <varlistentry>
600	<term>Linux nl80211/cfg80211</term>
601	<listitem>
602	  <para>This is the preferred driver for Linux.</para>
603	</listitem>
604      </varlistentry>
605
606      <varlistentry>
607	<term>Linux wireless extensions</term>
608	<listitem>
609	  <para>In theory, any driver that supports Linux wireless
610	extensions can be used with IEEE 802.1X (i.e., not WPA) when
611	using ap_scan=0 option in configuration file.</para>
612	</listitem>
613      </varlistentry>
614
615      <varlistentry>
616	<term>Wired Ethernet drivers</term>
617	<listitem>
618	  <para>Use ap_scan=0.</para>
619	</listitem>
620      </varlistentry>
621
622      <varlistentry>
623	<term>BSD net80211 layer (e.g., Atheros driver)</term>
624	<listitem>
625	  <para>At the moment, this is for FreeBSD 6-CURRENT branch.</para>
626	</listitem>
627      </varlistentry>
628
629      <varlistentry>
630	<term>Windows NDIS</term>
631	<listitem>
632	  <para>The current Windows port requires WinPcap
633	(http://winpcap.polito.it/).  See README-Windows.txt for more
634	information.</para>
635	</listitem>
636      </varlistentry>
637    </variablelist>
638
639
640    <para>wpa_supplicant was designed to be portable for different
641    drivers and operating systems. Hopefully, support for more wlan
642    cards and OSes will be added in the future. See developer.txt for
643    more information about the design of wpa_supplicant and porting to
644    other drivers. One main goal is to add full WPA/WPA2 support to
645    Linux wireless extensions to allow new drivers to be supported
646    without having to implement new driver-specific interface code in
647    wpa_supplicant.</para>
648  </refsect1>
649
650  <refsect1>
651    <title>Architecture</title> <para>The
652    <command>wpa_supplicant</command> system consists of the following
653    components:</para>
654
655    <variablelist>
656      <varlistentry>
657	<term><filename>wpa_supplicant.conf</filename> </term>
658	<listitem>
659        <para>the configuration file describing all networks that the
660        user wants the computer to connect to.  </para>
661	</listitem>
662      </varlistentry>
663      <varlistentry>
664	<term><command>wpa_supplicant</command></term>
665        <listitem><para>the program that directly interacts with the
666        network interface.  </para></listitem>
667      </varlistentry>
668      <varlistentry>
669	<term><command>wpa_cli</command></term> <listitem><para> the
670	client program that provides a high-level interface to the
671	functionality of the daemon.  </para></listitem>
672      </varlistentry>
673      <varlistentry>
674	<term><command>wpa_passphrase</command></term>
675        <listitem><para>a utility needed to construct
676        <filename>wpa_supplicant.conf</filename> files that include
677        encrypted passwords.</para></listitem>
678      </varlistentry>
679    </variablelist>
680  </refsect1>
681
682  <refsect1>
683    <title>Quick Start</title>
684
685    <para>First, make a configuration file, e.g.
686    <filename>/etc/wpa_supplicant.conf</filename>, that describes the networks
687    you are interested in.  See <citerefentry>
688	<refentrytitle>wpa_supplicant.conf</refentrytitle>
689	<manvolnum>5</manvolnum>
690      </citerefentry>
691    for details.</para>
692
693    <para>Once the configuration is ready, you can test whether the
694    configuration works by running <command>wpa_supplicant</command>
695    with following command to start it on foreground with debugging
696    enabled:</para>
697
698    <blockquote><programlisting>
699wpa_supplicant -iwlan0 -c/etc/wpa_supplicant.conf -d
700    </programlisting></blockquote>
701
702    <para>Assuming everything goes fine, you can start using following
703    command to start <command>wpa_supplicant</command> on background
704    without debugging:</para>
705
706    <blockquote><programlisting>
707wpa_supplicant -iwlan0 -c/etc/wpa_supplicant.conf -B
708    </programlisting></blockquote>
709
710    <para>Please note that if you included more than one driver
711    interface in the build time configuration (.config), you may need
712    to specify which interface to use by including -D&lt;driver
713    name&gt; option on the command line.</para>
714
715    <!-- XXX at this point, the page could include a little script
716         based on wpa_cli to wait for a connection and then run
717         dhclient -->
718
719  </refsect1>
720
721  <refsect1>
722    <title>Interface to pcmcia-cs/cardmrg</title>
723
724    <para>For example, the following small changes to pcmcia-cs scripts
725    can be used to enable WPA support:</para>
726
727    <para>Add MODE="Managed" and WPA="y" to the network scheme in
728    <filename>/etc/pcmcia/wireless.opts</filename>.</para>
729
730    <para>Add the following block to the end of <emphasis>start</emphasis>
731    action handler in <filename>/etc/pcmcia/wireless</filename>:</para>
732
733    <blockquote><programlisting>
734if [ "$WPA" = "y" -a -x /usr/local/bin/wpa_supplicant ]; then
735    /usr/local/bin/wpa_supplicant -B -c/etc/wpa_supplicant.conf -i$DEVICE
736fi
737    </programlisting></blockquote>
738
739
740    <para>Add the following block to the end of <emphasis>stop</emphasis>
741    action handler (may need to be separated from other actions) in
742    <filename>/etc/pcmcia/wireless</filename>:</para>
743
744    <blockquote><programlisting>
745if [ "$WPA" = "y" -a -x /usr/local/bin/wpa_supplicant ]; then
746    killall wpa_supplicant
747fi
748    </programlisting></blockquote>
749
750    <para>This will make <command>cardmgr</command> start
751    <command>wpa_supplicant</command> when the card is plugged
752    in.</para>
753  </refsect1>
754
755  <refsect1>
756    <title>See Also</title>
757    <para>
758      <citerefentry>
759	<refentrytitle>wpa_background</refentrytitle>
760	<manvolnum>8</manvolnum>
761      </citerefentry>
762      <citerefentry>
763	<refentrytitle>wpa_supplicant.conf</refentrytitle>
764	<manvolnum>5</manvolnum>
765      </citerefentry>
766      <citerefentry>
767	<refentrytitle>wpa_cli</refentrytitle>
768	<manvolnum>8</manvolnum>
769      </citerefentry>
770      <citerefentry>
771	<refentrytitle>wpa_passphrase</refentrytitle>
772	<manvolnum>8</manvolnum>
773      </citerefentry>
774    </para>
775  </refsect1>
776  <refsect1>
777    <title>Legal</title>
778    <para>wpa_supplicant is copyright (c) 2003-2022,
779    Jouni Malinen <email>j@w1.fi</email> and
780    contributors.
781    All Rights Reserved.</para>
782
783    <para>This program is licensed under the BSD license (the one with
784    advertisement clause removed).</para>
785  </refsect1>
786</refentry>
787