source: general/sysutils/elogind.xml@ adb90981

10.0 10.1 11.0 11.1 9.1 lazarus qt5new trunk upgradedb xry111/intltool xry111/test-20220226
Last change on this file since adb90981 was adb90981, checked in by Pierre Labastie <pieere@…>, 2 years ago

elogind-243.4

git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@22618 af4574ff-66df-0310-9fd7-8a98e5e911e0

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File size: 10.8 KB
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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 elogind-download-http "https://github.com/elogind/elogind/archive/v&elogind-version;/elogind-&elogind-version;.tar.gz">
8 <!ENTITY elogind-download-ftp " ">
9 <!ENTITY elogind-md5sum "9803503c9bcfe487f400380d742788e5">
10 <!ENTITY elogind-size "1.3 MB">
11 <!ENTITY elogind-buildsize "49 MB (add 2 MB for tests)">
12 <!ENTITY elogind-time "0.4 SBU (NINJAJOBS=1)">
13]>
14
15<sect1 id="elogind" revision="sysv" xreflabel="elogind-&elogind-version;">
16 <?dbhtml filename="elogind.html"?>
17
18 <sect1info>
19 <othername>$LastChangedBy$</othername>
20 <date>$Date$</date>
21 </sect1info>
22
23 <title>elogind-&elogind-version;</title>
24
25 <indexterm zone="elogind">
26 <primary sortas="a-elogind">elogind</primary>
27 </indexterm>
28
29 <sect2 role="package">
30 <title>Introduction to elogind</title>
31
32 <para>
33 <application>elogind</application> is the
34 <application>systemd</application> project's "logind", extracted out to
35 be a standalone daemon. It integrates with <xref linkend="linux-pam"/>
36 to know the set of users that are logged in to a system and whether they
37 are logged in graphically, on the console, or remotely.
38 <application>Elogind</application> exposes this information via the
39 standard org.freedesktop.login1 <application>D-Bus</application>
40 interface, as well as through the file system using systemd's standard
41 <filename class="directory">/run/systemd</filename> layout.
42 </para>
43
44 &lfs90_checked;
45
46 <bridgehead renderas="sect3">Package Information</bridgehead>
47 <itemizedlist spacing="compact">
48 <listitem>
49 <para>
50 Download (HTTP): <ulink url="&elogind-download-http;"/>
51 </para>
52 </listitem>
53 <listitem>
54 <para>
55 Download (FTP): <ulink url="&elogind-download-ftp;"/>
56 </para>
57 </listitem>
58 <listitem>
59 <para>
60 Download MD5 sum: &elogind-md5sum;
61 </para>
62 </listitem>
63 <listitem>
64 <para>
65 Download size: &elogind-size;
66 </para>
67 </listitem>
68 <listitem>
69 <para>
70 Estimated disk space required: &elogind-buildsize;
71 </para>
72 </listitem>
73 <listitem>
74 <para>
75 Estimated build time: &elogind-time;
76 </para>
77 </listitem>
78 </itemizedlist>
79
80 <bridgehead renderas="sect3">elogind Dependencies</bridgehead>
81
82 <bridgehead renderas="sect4">Required</bridgehead>
83 <para role="required">
84 <xref role="first" linkend="dbus"/>
85 </para>
86
87 <bridgehead renderas="sect4">Recommended</bridgehead>
88 <para role="recommended">
89 <xref linkend="DocBook"/>,
90 <xref linkend="docbook-xsl"/>, and
91 <xref linkend="libxslt"/> (to build the man pages),
92 <xref linkend="linux-pam"/>, and
93 <xref linkend="polkit" role="runtime"/> (runtime)
94 </para>
95
96 <bridgehead renderas="sect4">Optional</bridgehead>
97 <para role="optional">
98 For the tests:
99 <xref linkend="lxml"/>,
100 <xref linkend="gobject-introspection"/>,
101 <xref linkend="zsh"/>,
102 <xref linkend="valgrind"/>,
103 <ulink url="https://github.com/linux-audit/audit-userspace">
104 audit-userspace</ulink>,
105 <ulink url="https://github.com/scop/bash-completion">
106 bash-completion</ulink>,
107 <ulink url="https://mirrors.edge.kernel.org/pub/linux/utils/kernel/kexec/">
108 kexec</ulink>, and
109 <ulink url="http://www.selinuxproject.org/page/Main_Page">
110 SELinux</ulink>
111 </para>
112
113 <para condition="html" role="usernotes">User Notes:
114 <ulink url="&blfs-wiki;/elogind"/>
115 </para>
116 </sect2>
117
118 <sect2 role="kernel" id="elogind-kernel">
119 <title>Kernel Configuration</title>
120
121 <para>
122 Enable the following options in the kernel configuration and recompile the
123 kernel if necessary:
124 </para>
125
126<!-- Spaces are significant in <screen> sections -->
127<screen><literal>General setup ---&gt;
128 [*] Control Group support [CONFIG_CGROUPS]
129File systems ---&gt;
130 [*] Inotify support for userspace [CONFIG_INOTIFY_USER]
131 Pseudo filesystems ---&gt;
132 [*] Tmpfs POSIX Access Control Lists [CONFIG_TMPFS_POSIX_ACL]</literal></screen>
133
134 <para>
135 In addition, some tests need the userspace cryptographic kernel API, which
136 is enabled with:
137 </para>
138
139<screen><literal>-*- Cryptographic API ---&gt; [CONFIG_CRYPTO]
140 &lt;M/*&gt; Userspace cryptographic algorithm configuration [CONFIG_CRYPTO_USER]
141 &lt;M/*&gt; User-space interface for hash algorithms [CONFIG_CRYPTO_USER_API_HASH]</literal></screen>
142
143 <indexterm zone="elogind elogind-kernel">
144 <primary sortas="d-elogind">elogind</primary>
145 </indexterm>
146 </sect2>
147
148 <sect2 role="installation">
149 <title>Installation of elogind</title>
150
151 <para>
152 Fix one of the tests:
153 </para>
154<!-- Shouldn't be needed on LFS SVN, but is needed on 9.0 -->
155<screen><userinput>sed 's/os-release/lsb-release/' -i src/test/test-copy.c</userinput></screen>
156
157 <para>
158 Install <application>elogind</application> by running the following
159 commands:
160 </para>
161
162<screen><userinput>mkdir build &amp;&amp;
163cd build &amp;&amp;
164
165meson --prefix=/usr \
166 --sysconfdir=/etc \
167 --localstatedir=/var \
168 -Dcgroup-controller=elogind \
169 -Ddbuspolicydir=/etc/dbus-1/system.d \
170 -Dman=auto \
171 .. &amp;&amp;
172ninja</userinput></screen>
173
174 <para>
175 To test the results, issue: <command>ninja test</command>. A few tests
176 are skipped if not run with <systemitem class="username">root</systemitem>
177 privileges.
178 </para>
179
180 <para>
181 Now, as the <systemitem class="username">root</systemitem> user:
182 </para>
183
184<screen role="root"><userinput>ninja install &amp;&amp;
185ln -sfv libelogind.pc /usr/lib/pkgconfig/libsystemd.pc &amp;&amp;
186ln -sfvn elogind /usr/include/systemd</userinput></screen>
187
188 </sect2>
189
190 <sect2 role="commands">
191 <title>Command Explanations</title>
192
193 <para>
194 <parameter>-Dcgroup-controller=elogind</parameter>: This switch ensures
195 that <application>elogind</application> is selected as the cgroup
196 controller, even if booted with another running cgroup controller.
197 </para>
198
199 <para>
200 <parameter>-Ddbuspolicydir=/etc/dbus-1/system.d</parameter>: This switch
201 sets the location of the <application>D-Bus</application> policy
202 directory.
203 </para>
204
205 <para>
206 <parameter>-Dman=auto</parameter>: The default value of this switch is
207 <emphasis>false</emphasis>. Setting it to <emphasis>auto</emphasis>
208 allows building and installing the man pages if the recommended
209 dependencies are installed.
210 </para>
211
212 <para>
213 <command>ln -s ...</command>: These commands install symlinks so that
214 software packages find systemd compatible library and headers.
215 </para>
216
217 </sect2>
218
219 <sect2 role="configuration">
220 <title>Configuring elogind</title>
221
222 <para>
223 Each user will need to register a user session using
224 <application>Linux-PAM</application> at login. The
225 <filename>/etc/pam.d/system-session</filename> file needs to
226 be modified and a new file needs to be created in order for
227 <command>elogind</command> to work correctly. Run the following
228 commands as the <systemitem class="username">root</systemitem> user:
229 </para>
230
231<screen role="root"><userinput>cat &gt;&gt; /etc/pam.d/system-session &lt;&lt; "EOF" &amp;&amp;
232<literal># Begin elogind addition
233
234session required pam_loginuid.so
235session optional pam_elogind.so
236
237# End elogind addition</literal>
238EOF
239cat &gt; /etc/pam.d/elogind-user &lt;&lt; "EOF"
240<literal># Begin /etc/pam.d/elogind-user
241
242account required pam_access.so
243account include system-account
244
245session required pam_env.so
246session required pam_limits.so
247session required pam_unix.so
248session required pam_loginuid.so
249session optional pam_keyinit.so force revoke
250session optional pam_elogind.so
251
252auth required pam_deny.so
253password required pam_deny.so
254
255# End /etc/pam.d/elogind-user</literal>
256EOF</userinput></screen>
257
258 </sect2>
259
260 <sect2 role="content" revision="sysv">
261 <title>Contents</title>
262
263 <segmentedlist>
264 <segtitle>Installed Programs</segtitle>
265 <segtitle>Installed Library</segtitle>
266 <segtitle>Installed Directories</segtitle>
267
268 <seglistitem>
269 <seg>
270 busctl,
271 elogind-inhibit, and
272 loginctl
273 </seg>
274 <seg>
275 libelogind.so
276 </seg>
277 <seg>
278 /lib/elogind,
279 /etc/elogind,
280 /usr/include/elogind, and
281 /usr/share/doc/elogind-&elogind-version;
282 </seg>
283 </seglistitem>
284 </segmentedlist>
285
286 <variablelist>
287 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
288 <?dbfo list-presentation="list"?>
289 <?dbhtml list-presentation="table"?>
290
291 <varlistentry id="busctl">
292 <term><command>busctl</command></term>
293 <listitem>
294 <para>
295 is used to introspect and monitor the D-Bus bus.
296 </para>
297 <indexterm zone="elogind busctl">
298 <primary sortas="b-busctl">busctl</primary>
299 </indexterm>
300 </listitem>
301 </varlistentry>
302
303 <varlistentry id="elogind-inhibit">
304 <term><command>elogind-inhibit</command></term>
305 <listitem>
306 <para>
307 is used to execute a program with a shutdown, sleep or idle
308 inhibitor lock taken.
309 </para>
310 <indexterm zone="elogind elogind-inhibit">
311 <primary sortas="b-elogind-inhibit">elogind-inhibit</primary>
312 </indexterm>
313 </listitem>
314 </varlistentry>
315
316 <varlistentry id="loginctl">
317 <term><command>loginctl</command></term>
318 <listitem>
319 <para>
320 is used to introspect and control the state of the elogind Login
321 Manager.
322 </para>
323 <indexterm zone="elogind loginctl">
324 <primary sortas="b-loginctl">loginctl</primary>
325 </indexterm>
326 </listitem>
327 </varlistentry>
328
329 <varlistentry id="libelogind">
330 <term><filename class="libraryfile">libelogind.so</filename></term>
331 <listitem>
332 <para>
333 is the main elogind utility library.
334 </para>
335 <indexterm zone="elogind libelogind">
336 <primary sortas="c-libelogind">libelogind.so</primary>
337 </indexterm>
338 </listitem>
339 </varlistentry>
340
341 </variablelist>
342
343 </sect2>
344
345</sect1>
346
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