source: general/sysutils/elogind.xml@ df68f083

10.0 10.1 11.0 11.1 11.2 9.1 lazarus plabs/python-mods qt5new trunk upgradedb xry111/intltool xry111/soup3 xry111/test-20220226
Last change on this file since df68f083 was df68f083, checked in by Pierre Labastie <pieere@…>, 3 years ago

elogind-243.4

git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@22548 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 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 "f7cbea34cae55d66bed5355048eaa14a">
10 <!ENTITY elogind-size "1.3 MB">
11 <!ENTITY elogind-buildsize "58 MB (add 1 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>
140-*- Cryptographic API ---&gt; [CONFIG_CRYPTO]
141 &lt;M/*&gt; Userspace cryptographic algorithm configuration [CONFIG_CRYPTO_USER]
142 &lt;M/*&gt; User-space interface for hash algorithms [CONFIG_CRYPTO_USER_API_HASH]</literal></screen>
143
144 <indexterm zone="elogind elogind-kernel">
145 <primary sortas="d-elogind">elogind</primary>
146 </indexterm>
147 </sect2>
148
149 <sect2 role="installation">
150 <title>Installation of elogind</title>
151
152 <para>
153 Fix one of the tests:
154 </para>
155
156<screen><userinput>sed 's/os-release/lsb-release/' -i src/test/test-copy.c</userinput></screen>
157
158 <para>
159 Install <application>elogind</application> by running the following
160 commands:
161 </para>
162
163<screen><userinput>mkdir build &amp;&amp;
164cd build &amp;&amp;
165
166meson --prefix=/usr \
167 --sysconfdir=/etc \
168 --localstatedir=/var \
169 -Dcgroup-controller=elogind \
170 -Ddbuspolicydir=/etc/dbus-1/system.d \
171 -Dman=auto \
172 .. &amp;&amp;
173ninja</userinput></screen>
174
175 <para>
176 To test the results, issue: <command>ninja test</command>. A few tests
177 are skipped if not run with <systemitem class="username">root</systemitem>
178 privileges.
179 </para>
180
181 <para>
182 Now, as the <systemitem class="username">root</systemitem> user:
183 </para>
184
185<screen role="root"><userinput>ninja install &amp;&amp;
186ln -sfv libelogind.pc /usr/lib/pkgconfig/libsystemd.pc &amp;&amp;
187ln -sfvn elogind /usr/include/systemd</userinput></screen>
188
189 </sect2>
190
191 <sect2 role="commands">
192 <title>Command Explanations</title>
193
194 <para>
195 <parameter>-Dcgroup-controller=elogind</parameter>: This switch ensures
196 that <application>elogind</application> is selected as the cgroup
197 controller, even if booted with another running cgroup controller.
198 </para>
199
200 <para>
201 <parameter>-Ddbuspolicydir=/etc/dbus-1/system.d</parameter>: This switch
202 sets the location of the <application>D-Bus</application> policy
203 directory.
204 </para>
205
206 <para>
207 <parameter>-Dman=auto</parameter>: The default value of this switch is
208 <emphasis>false</emphasis>. Setting it to <emphasis>auto</emphasis>
209 allows building and installing the man pages if the recommended
210 dependencies are installed.
211 </para>
212
213 <para>
214 <command>ln -s ...</command>: These commands install symlinks so that
215 software packages find systemd compatible library and headers.
216 </para>
217
218 </sect2>
219
220 <sect2 role="configuration">
221 <title>Configuring elogind</title>
222
223 <para>
224 Each user will need to register a user session using
225 <application>Linux-PAM</application> at login. The
226 <filename>/etc/pam.d/system-session</filename> file needs to
227 be modified and a new file needs to be created in order for
228 <command>elogind</command> to work correctly. Run the following
229 commands as the <systemitem class="username">root</systemitem> user:
230 </para>
231
232<screen role="root"><userinput>cat &gt;&gt; /etc/pam.d/system-session &lt;&lt; "EOF" &amp;&amp;
233<literal># Begin elogind addition
234
235session required pam_loginuid.so
236session optional pam_elogind.so
237
238# End elogind addition</literal>
239EOF
240cat &gt; /etc/pam.d/elogind-user &lt;&lt; "EOF"
241<literal># Begin /etc/pam.d/elogind-user
242
243account required pam_access.so
244account include system-account
245
246session required pam_env.so
247session required pam_limits.so
248session required pam_unix.so
249session required pam_loginuid.so
250session optional pam_keyinit.so force revoke
251session optional pam_elogind.so
252
253auth required pam_deny.so
254password required pam_deny.so
255
256# End /etc/pam.d/elogind-user</literal>
257EOF</userinput></screen>
258
259 </sect2>
260
261 <sect2 role="content" revision="sysv">
262 <title>Contents</title>
263
264 <segmentedlist>
265 <segtitle>Installed Programs</segtitle>
266 <segtitle>Installed Library</segtitle>
267 <segtitle>Installed Directories</segtitle>
268
269 <seglistitem>
270 <seg>
271 busctl,
272 elogind-inhibit, and
273 loginctl
274 </seg>
275 <seg>
276 libelogind.so
277 </seg>
278 <seg>
279 /lib/elogind,
280 /etc/elogind,
281 /usr/include/elogind, and
282 /usr/share/doc/elogind-&elogind-version;
283 </seg>
284 </seglistitem>
285 </segmentedlist>
286
287 <variablelist>
288 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
289 <?dbfo list-presentation="list"?>
290 <?dbhtml list-presentation="table"?>
291
292 <varlistentry id="busctl">
293 <term><command>busctl</command></term>
294 <listitem>
295 <para>
296 is used to introspect and monitor the D-Bus bus.
297 </para>
298 <indexterm zone="elogind busctl">
299 <primary sortas="b-busctl">busctl</primary>
300 </indexterm>
301 </listitem>
302 </varlistentry>
303
304 <varlistentry id="elogind-inhibit">
305 <term><command>elogind-inhibit</command></term>
306 <listitem>
307 <para>
308 is used to execute a program with a shutdown, sleep or idle
309 inhibitor lock taken.
310 </para>
311 <indexterm zone="elogind elogind-inhibit">
312 <primary sortas="b-elogind-inhibit">elogind-inhibit</primary>
313 </indexterm>
314 </listitem>
315 </varlistentry>
316
317 <varlistentry id="loginctl">
318 <term><command>loginctl</command></term>
319 <listitem>
320 <para>
321 is used to introspect and control the state of the elogind Login
322 Manager.
323 </para>
324 <indexterm zone="elogind loginctl">
325 <primary sortas="b-loginctl">loginctl</primary>
326 </indexterm>
327 </listitem>
328 </varlistentry>
329
330 <varlistentry id="libelogind">
331 <term><filename class="libraryfile">libelogind.so</filename></term>
332 <listitem>
333 <para>
334 is the main elogind utility library.
335 </para>
336 <indexterm zone="elogind libelogind">
337 <primary sortas="c-libelogind">libelogind.so</primary>
338 </indexterm>
339 </listitem>
340 </varlistentry>
341
342 </variablelist>
343
344 </sect2>
345
346</sect1>
347
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