source: networking/netprogs/wpa_supplicant-systemd.xml@ 9a9c7c2

7.6-blfs 7.6-systemd kde5-14269 kde5-14686 systemd-13485
Last change on this file since 9a9c7c2 was 9a9c7c2, checked in by Krejzi <krejzi@…>, 10 years ago

More checks and fixes.

git-svn-id: svn://svn.linuxfromscratch.org/BLFS/branches/systemd@14017 af4574ff-66df-0310-9fd7-8a98e5e911e0
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1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
3 "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
4 <!ENTITY % general-entities SYSTEM "../../general.ent">
5 %general-entities;
6
7 <!ENTITY wpa_supplicant-download-http
8 "http://hostap.epitest.fi/releases/wpa_supplicant-&wpa_supplicant-version;.tar.gz">
9 <!ENTITY wpa_supplicant-download-ftp " ">
10 <!ENTITY wpa_supplicant-md5sum "238e8e888bbd558e1a57e3eb28d1dd07">
11 <!ENTITY wpa_supplicant-size "2.3 MB">
12 <!ENTITY wpa_supplicant-buildsize "26 MB">
13 <!ENTITY wpa_supplicant-time "0.2 SBU">
14]>
15
16<sect1 id="wpa_supplicant" xreflabel="wpa_supplicant-&wpa_supplicant-version;">
17 <?dbhtml filename="wpa_supplicant.html"?>
18
19 <sect1info>
20 <othername>$LastChangedBy$</othername>
21 <date>$Date$</date>
22 </sect1info>
23
24 <title>wpa_supplicant-&wpa_supplicant-version;</title>
25
26 <indexterm zone="wpa_supplicant">
27 <primary sortas="a-wpa_supplicant">wpa_supplicant</primary>
28 </indexterm>
29
30 <sect2 role="package">
31 <title>Introduction to WPA Supplicant</title>
32
33 <para>
34 <application>WPA Supplicant</application> is a Wi-Fi Protected Access
35 (WPA) client and IEEE 802.1X supplicant. It implements WPA key negotiation
36 with a WPA Authenticator and Extensible Authentication Protocol (EAP)
37 authentication with an Authentication Server. In addition, it controls the
38 roaming and IEEE 802.11 authentication/association of the wireless LAN
39 driver. This is useful for connecting to a password protected wireless
40 access point.
41 </para>
42
43 &lfs76_checked;
44
45 <bridgehead renderas="sect3">Package Information</bridgehead>
46 <itemizedlist spacing="compact">
47 <listitem>
48 <para>
49 Download (HTTP): <ulink url="&wpa_supplicant-download-http;"/>
50 </para>
51 </listitem>
52 <listitem>
53 <para>
54 Download (FTP): <ulink url="&wpa_supplicant-download-ftp;"/>
55 </para>
56 </listitem>
57 <listitem>
58 <para>
59 Download MD5 sum: &wpa_supplicant-md5sum;
60 </para>
61 </listitem>
62 <listitem>
63 <para>
64 Download size: &wpa_supplicant-size;
65 </para>
66 </listitem>
67 <listitem>
68 <para>
69 Estimated disk space required: &wpa_supplicant-buildsize;
70 </para>
71 </listitem>
72 <listitem>
73 <para>
74 Estimated build time: &wpa_supplicant-time;
75 </para>
76 </listitem>
77 </itemizedlist>
78
79 <bridgehead renderas="sect3">WPA Supplicant Dependencies</bridgehead>
80
81 <bridgehead renderas="sect4">Recommended</bridgehead>
82 <para role="recommended">
83 <xref linkend="libnl"/> and
84 <xref linkend="openssl"/>
85 </para>
86
87 <bridgehead renderas="sect4">Optional</bridgehead>
88 <para role="optional">
89 <xref linkend="qt4"/>
90 </para>
91
92 <para condition="html" role="usernotes">User Notes:
93 <ulink url="&blfs-wiki;/wpa_supplicant"/>
94 </para>
95
96 </sect2>
97
98 <sect2 role="kernel" id="wpa_supplicant-kernel">
99 <title>Kernel Configuration</title>
100
101 <para>
102 Enable the following options in the kernel configuration as well as
103 specific device drivers for your hardware and recompile the kernel if
104 necessary:
105 </para>
106
107<screen><literal>Networking support --->
108 Wireless --->
109 cfg80211 - wireless configuration API: Y or M
110 cfg80211 wireless extensions compatibility: Y
111 Generic IEEE 802.11 Networking Stack (mac80211): Y or M
112Device Drivers --->
113 Network device support --->
114 Wireless LAN ---></literal></screen>
115
116 <para>
117 Select the options that support your hardware:
118 <command>lspci</command> from <xref linkend="pciutils"/> can be used to
119 view your hardware configuration.
120 </para>
121
122 <indexterm zone="wpa_supplicant wpa_supplicant-kernel">
123 <primary sortas="d-wpa_supplicant">wpa_supplicant</primary>
124 </indexterm>
125 </sect2>
126
127 <sect2 role="installation">
128 <title>Installation of WPA Supplicant</title>
129
130 <para>
131 First you will need to create an initial configuration file for the
132 build process. You can read <filename>wpa_supplicant/README</filename>
133 and <filename>wpa_supplicant/defconfig</filename> for the explanation
134 of the following options as well as other options that can be used.
135 Create a build configuration file that should work for standard WiFi
136 setups by running the following command:
137 </para>
138
139<screen><userinput>cat &gt; wpa_supplicant/.config &lt;&lt; "EOF"
140<literal>CONFIG_BACKEND=file
141CONFIG_CTRL_IFACE=y
142CONFIG_DEBUG_FILE=y
143CONFIG_DEBUG_SYSLOG=y
144CONFIG_DEBUG_SYSLOG_FACILITY=LOG_DAEMON
145CONFIG_DRIVER_NL80211=y
146CONFIG_DRIVER_WEXT=y
147CONFIG_DRIVER_WIRED=y
148CONFIG_EAP_GTC=y
149CONFIG_EAP_LEAP=y
150CONFIG_EAP_MD5=y
151CONFIG_EAP_MSCHAPV2=y
152CONFIG_EAP_OTP=y
153CONFIG_EAP_PEAP=y
154CONFIG_EAP_TLS=y
155CONFIG_EAP_TTLS=y
156CONFIG_IEEE8021X_EAPOL=y
157CONFIG_IPV6=y
158CONFIG_LIBNL32=y
159CONFIG_PEERKEY=y
160CONFIG_PKCS12=y
161CONFIG_READLINE=y
162CONFIG_SMARTCARD=y
163CONFIG_WPS=y
164CFLAGS += -I/usr/include/libnl3</literal>
165EOF</userinput></screen>
166
167 <para>
168 If you wish to use <application>WPA Supplicant</application> with
169 <xref linkend="NetworkManager"/>, add the required options to
170 the <application>WPA Supplicant</application> build configuration
171 file by running the following command:
172 </para>
173
174<screen><userinput>cat &gt;&gt; wpa_supplicant/.config &lt;&lt; "EOF"
175<literal>CONFIG_CTRL_IFACE_DBUS=y
176CONFIG_CTRL_IFACE_DBUS_NEW=y
177CONFIG_CTRL_IFACE_DBUS_INTRO=y</literal>
178EOF</userinput></screen>
179
180 <para>
181 First, fix expand the list of parameters that are passed to the
182 <command>wpa_supplicant</command> when started as a
183 <application>D-Bus</application> service:
184 </para>
185
186<screen><userinput>sed -e "s@wpa_supplicant -u@&amp; -s -O /var/run/wpa_supplicant@g" -i wpa_supplicant/dbus/*.service.in &amp;&amp;
187sed -e "s@wpa_supplicant -u@&amp; -s -O /var/run/wpa_supplicant@g" -i wpa_supplicant/systemd/wpa_supplicant.service.in</userinput></screen>
188
189 <para>
190 Install <application>WPA Supplicant</application> by running the
191 following commands:
192 </para>
193
194<screen><userinput>cd wpa_supplicant &amp;&amp;
195make BINDIR=/sbin LIBDIR=/lib</userinput></screen>
196
197 <para>
198 If you have installed <xref linkend="qt4"/> and wish to build
199 the <application>WPA Supplicant</application> GUI program, run
200 the following commands:
201 </para>
202
203<screen><userinput>pushd wpa_gui-qt4 &amp;&amp;
204qmake-qt4 wpa_gui.pro &amp;&amp;
205make &amp;&amp;
206popd</userinput></screen>
207
208 <para>
209 This package does not come with a test suite.
210 </para>
211
212 <para>
213 Now, as the <systemitem class="username">root</systemitem> user:
214 </para>
215
216<screen role="root"><userinput>install -v -m755 wpa_{cli,passphrase,supplicant} /sbin/ &amp;&amp;
217install -v -m644 doc/docbook/wpa_supplicant.conf.5 /usr/share/man/man5/ &amp;&amp;
218install -v -m644 doc/docbook/wpa_{cli,passphrase,supplicant}.8 /usr/share/man/man8/</userinput></screen>
219
220 <para>
221 Install the <application>systemd</application> support files by
222 running the following command as the <systemitem
223 class="username">root</systemitem> user:
224 </para>
225
226<screen role="root"><userinput>install -v -m644 systemd/*.service /lib/systemd/system/</userinput></screen>
227
228 <para>
229 If you have built <application>WPA Supplicant</application> with
230 <application>D-Bus</application> support, you will need to install
231 <application>D-Bus</application> configuration files. Install them
232 by running the following commands as the
233 <systemitem class="username">root</systemitem> user:
234 </para>
235
236<screen role="root"><userinput>install -v -m644 dbus/fi.{epitest.hostap.WPASupplicant,w1.wpa_supplicant1}.service \
237 /usr/share/dbus-1/system-services/ &amp;&amp;
238install -v -m644 dbus/dbus-wpa_supplicant.conf \
239 /etc/dbus-1/system.d/wpa_supplicant.conf</userinput></screen>
240
241 <para>
242 Additionally, enable the <filename>wpa_supplicant.service</filename> so that
243 <application>systemd</application> can properly activate the
244 <application>D-Bus</application> service. Run the following command as the
245 <systemitem class="username">root</systemitem> user:
246 </para>
247
248<screen role="root"><userinput>systemctl enable wpa_supplicant</userinput></screen>
249
250 <para>
251 If you have built the <application>WPA Supplicant</application> GUI
252 program, install it by running the following commands as the
253 <systemitem class="username">root</systemitem> user:
254 </para>
255
256<screen role="root"><userinput>install -v -m755 wpa_gui-qt4/wpa_gui /usr/bin/ &amp;&amp;
257install -v -m644 doc/docbook/wpa_gui.8 /usr/share/man/man8/ &amp;&amp;
258install -v -m644 wpa_gui-qt4/wpa_gui.desktop /usr/share/applications/ &amp;&amp;
259install -v -m644 wpa_gui-qt4/icons/wpa_gui.svg /usr/share/pixmaps/</userinput></screen>
260
261 <note>
262 <para>
263 You will need to restart the system <application>D-Bus</application> daemon
264 before you can use the <application>WPA Supplicant</application>
265 <application>D-Bus</application> interface.
266 </para>
267 </note>
268
269 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
270 href="../../xincludes/update-desktop-database.xml"/>
271
272 </sect2>
273
274 <sect2 role="configuration">
275 <title>Configuring wpa_supplicant</title>
276
277 <sect3 id="wpa_supplicant-config">
278 <title>Config File</title>
279
280 <para>
281 <filename>/etc/wpa_supplicant/wpa_supplicant-*.conf</filename>
282 </para>
283
284 <indexterm zone="wpa_supplicant wpa_supplicant-config">
285 <primary
286 sortas="e-etc-wpa_supplicant-wpa_supplicant-star.conf">/etc/wpa_supplicant/wpa_supplicant-*.conf</primary>
287 </indexterm>
288
289 </sect3>
290
291 <sect3>
292 <title>Configuration Information</title>
293
294 <warning>
295 <para>
296 You need to replace <replaceable>wlan0</replaceable> with
297 the correct wireless interface name in the commands below.
298 </para>
299 </warning>
300
301 <para>
302 To connect to an access point that uses a password, you need to put
303 the pre-shared key in <filename>
304 /etc/wpa_supplicant/wpa_supplicant-<replaceable>wlan0</replaceable>.conf</filename>.
305 SSID is the string that the access point/router transmits to
306 identify itself. Run the following command as the
307 <systemitem class="username">root</systemitem> user:
308 </para>
309
310<screen role="root"><userinput>install -v -dm755 /etc/wpa_supplicant &amp;&amp;
311wpa_passphrase <replaceable>SSID</replaceable> <replaceable>SECRET_PASSWORD</replaceable> &gt; /etc/wpa_supplicant/wpa_supplicant-<replaceable>wlan0</replaceable>.conf</userinput></screen>
312
313 <para>
314 <filename>/etc/wpa_supplicant/wpa_supplicant-<replaceable>wlan0</replaceable>.conf
315 </filename> can hold the details of several access points. When
316 <command>wpa_supplicant</command> is started, it will scan for the
317 SSIDs it can see and choose the appropriate password to connect.
318 </para>
319
320 <para>
321 If you want to connect to an access point that isn't password
322 protected, put an entry like this in <filename>
323 /etc/wpa_supplicant/wpa_supplicant-<replaceable>wlan0</replaceable>.conf</filename>.
324 Replace "Some-SSID" with the SSID of the access point/router.
325 </para>
326
327<screen>network={
328 ssid="<replaceable>Some-SSID</replaceable>"
329 key_mgmt=NONE
330}</screen>
331
332 <para>
333 There are many options that you could use to tweak how you connect
334 to each access point. They are described in some detail in the
335 <filename>wpa_supplicant/wpa_supplicant.conf</filename> file in the
336 source tree.
337 </para>
338
339 </sect3>
340
341 <sect3>
342 <title>Connecting to an Access Point</title>
343
344 <para>
345 There are 3 types of <application>systemd</application> units
346 that were installed:
347 </para>
348
349 <itemizedlist spacing="compact">
350 <listitem>
351 <para>
352 wpa_supplicant@.service
353 </para>
354 </listitem>
355 <listitem>
356 <para>
357 wpa_supplicant-nl80211@.service
358 </para>
359 </listitem>
360 <listitem>
361 <para>
362 wpa_supplicant-wired@.service
363 </para>
364 </listitem>
365 </itemizedlist>
366
367 <para>
368 The only difference between 3 of them is what driver
369 is used for connecting (-D option). The first one uses
370 the default driver, the second one uses the nl80211
371 driver and the third one uses the wired driver.
372 </para>
373
374 <para>
375 You can connect to the wireless access point by
376 running the following command as the
377 <systemitem class="username">root</systemitem> user:
378 </para>
379
380<screen role="root"><userinput>systemctl start wpa_supplicant@<replaceable>wlan0</replaceable></userinput></screen>
381
382 <para>
383 To connect to the wireless access point at
384 boot, simply enable the appropriate
385 <command>wpa_supplicant</command> service
386 by running the following command as the
387 <systemitem class="username">root</systemitem> user:
388 </para>
389
390<screen role="root"><userinput>systemctl enable wpa_supplicant@<replaceable>wlan0</replaceable></userinput></screen>
391
392 <para>
393 Depending on your setup, you can replace the
394 <filename>wpa_supplicant@.service</filename>
395 with any other listed above.
396 </para>
397
398 <para>
399 To assign a network address to your wireless interface,
400 consult the <ulink
401 url="&lfs-root;/chapter07/network.html">General Network Configuration</ulink>
402 page in LFS.
403 </para>
404
405 </sect3>
406
407 </sect2>
408
409 <sect2 role="content">
410 <title>Contents</title>
411
412 <segmentedlist>
413 <segtitle>Installed Programs</segtitle>
414 <segtitle>Installed Libraries</segtitle>
415 <segtitle>Installed Directories</segtitle>
416
417 <seglistitem>
418 <seg>
419 wpa_gui, wpa_supplicant, wpa_passphrase and wpa_cli
420 </seg>
421 <seg>
422 None
423 </seg>
424 <seg>
425 None
426 </seg>
427 </seglistitem>
428 </segmentedlist>
429
430 <variablelist>
431 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
432 <?dbfo list-presentation="list"?>
433 <?dbhtml list-presentation="table"?>
434
435 <varlistentry id="wpa_gui">
436 <term><command>wpa_gui</command></term>
437 <listitem>
438 <para>
439 is a graphical frontend program for interacting with
440 <application>wpa_supplicant</application>.
441 </para>
442 <indexterm zone="wpa_supplicant wpa_gui">
443 <primary sortas="b-wpa_gui">wpa_gui</primary>
444 </indexterm>
445 </listitem>
446 </varlistentry>
447
448 <varlistentry id="wpa_supplicant-prog">
449 <term><command>wpa_supplicant</command></term>
450 <listitem>
451 <para>
452 is a daemon that can connect to a password protected wireless
453 access point.
454 </para>
455 <indexterm zone="wpa_supplicant wpa_supplicant-prog">
456 <primary sortas="b-wpa_supplicant">wpa_supplicant</primary>
457 </indexterm>
458 </listitem>
459 </varlistentry>
460
461 <varlistentry id="wpa_passphrase">
462 <term><command>wpa_passphrase</command></term>
463 <listitem>
464 <para>
465 takes an SSID and a password and generates a simple
466 configuration that <command>wpa_supplicant</command> can
467 understand.
468 </para>
469 <indexterm zone="wpa_supplicant wpa_passphrase">
470 <primary sortas="b-wpa_passphrase">wpa_passphrase</primary>
471 </indexterm>
472 </listitem>
473 </varlistentry>
474
475 <varlistentry id="wpa_cli">
476 <term><command>wpa_cli</command></term>
477 <listitem>
478 <para>
479 is a command line interface used to control a running
480 <command>wpa_supplicant</command> daemon.
481 </para>
482 <indexterm zone="wpa_supplicant wpa_cli">
483 <primary sortas="b-wpa_cli">wpa_cli</primary>
484 </indexterm>
485 </listitem>
486 </varlistentry>
487
488 </variablelist>
489
490 </sect2>
491
492</sect1>
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