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This will install dbus.service and dbus.socket into /usr/lib/systemd/user. In a base LFS installation the systemd per-user daemon is not usable at all, so they may seem useless. But if we install them, we can start to use them once systemd is rebuilt with PAM in BLFS (without rebuilding dbus).
251 lines
8.9 KiB
XML
251 lines
8.9 KiB
XML
<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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<!ENTITY % general-entities SYSTEM "../general.ent">
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%general-entities;
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]>
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<sect1 id="ch-system-dbus" role="wrap" revision="systemd">
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<?dbhtml filename="dbus.html"?>
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<sect1info condition="script">
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<productname>dbus</productname>
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<productnumber>&dbus-version;</productnumber>
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<address>&dbus-url;</address>
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</sect1info>
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<title>D-Bus-&dbus-version;</title>
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<indexterm zone="ch-system-dbus">
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<primary sortas="a-dbus">D-Bus</primary>
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</indexterm>
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<sect2 role="package">
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<title/>
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<para>D-Bus is a message bus system, a simple way for applications to talk
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to one another. D-Bus supplies both a system daemon (for events such as
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"new hardware device added" or "printer queue changed") and a
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per-user-login-session daemon (for general IPC needs among user
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applications). Also, the message bus is built on top of a general one-to-one
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message passing framework, which can be used by any two applications to
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communicate directly (without going through the message bus daemon).</para>
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<segmentedlist>
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<segtitle>&buildtime;</segtitle>
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<segtitle>&diskspace;</segtitle>
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<seglistitem>
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<seg>&dbus-fin-sbu;</seg>
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<seg>&dbus-fin-du;</seg>
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</seglistitem>
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</segmentedlist>
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</sect2>
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<sect2 role="installation">
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<title>Installation of D-Bus</title>
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<para>Prepare D-Bus for compilation:</para>
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<screen><userinput remap="configure">./configure --prefix=/usr \
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--sysconfdir=/etc \
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--localstatedir=/var \
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--runstatedir=/run \
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--enable-user-session \
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--disable-static \
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--disable-doxygen-docs \
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--disable-xml-docs \
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--docdir=/usr/share/doc/dbus-&dbus-version; \
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--with-system-socket=/run/dbus/system_bus_socket</userinput></screen>
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<variablelist>
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<title>The meaning of the configure options:</title>
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<varlistentry>
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<term>
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<parameter>--runstatedir=/run</parameter> and
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<parameter>--with-system-socket=/run/dbus/system_bus_socket</parameter>
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</term>
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<listitem>
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<para>These cause the PID file and the system bus socket
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to be in <filename class="directory">/run</filename>, instead of
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the deprecated <filename class="directory">/var/run</filename>.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>
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<parameter>--enable-user-session</parameter>
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</term>
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<listitem>
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<para>These ensures the D-Bus per-user service and socket unit
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files are installed for Systemd. They are not useful (but
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harmless) in a base LFS installation, however they can be used
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once systemd is rebuilt with PAM support in BLFS.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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<para>Compile the package:</para>
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<screen><userinput remap="make">make</userinput></screen>
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<para>To test the results, issue:</para>
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<screen><userinput remap="test">make check</userinput></screen>
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<para>Many tests are disabled because they require additional
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packages that are not included in LFS. Instructions for running the
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comprehensive test suite can be found in
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<ulink url="&blfs-book;general/dbus.html">the BLFS book</ulink>.</para>
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<para>Install the package:</para>
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<screen><userinput remap="install">make install</userinput></screen>
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<para>Create a symlink so that D-Bus and systemd can use the same
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<filename>machine-id</filename> file:</para>
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<screen><userinput remap="install">ln -sfv /etc/machine-id /var/lib/dbus</userinput></screen>
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</sect2>
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<sect2 id="contents-dbus" role="content">
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<title>Contents of D-Bus</title>
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<segmentedlist>
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<segtitle>Installed programs</segtitle>
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<segtitle>Installed libraries</segtitle>
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<segtitle>Installed directories</segtitle>
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<seglistitem>
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<seg>dbus-cleanup-sockets, dbus-daemon, dbus-launch, dbus-monitor,
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dbus-run-session, dbus-send, dbus-test-tool,
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dbus-update-activation-environment, and dbus-uuidgen</seg>
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<seg>libdbus-1.so</seg>
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<seg>/etc/dbus-1, /usr/include/dbus-1.0, /usr/lib/dbus-1.0,
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/usr/share/dbus-1, /usr/share/doc/dbus-&dbus-version;,
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and /var/lib/dbus</seg>
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</seglistitem>
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</segmentedlist>
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<variablelist>
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<bridgehead renderas="sect3">Short Descriptions</bridgehead>
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<?dbfo list-presentation="list"?>
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<?dbhtml list-presentation="table"?>
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<varlistentry id="dbus-cleanup-sockets">
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<term><command>dbus-cleanup-sockets</command></term>
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<listitem>
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<para>is used to remove leftover sockets in a directory</para>
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<indexterm zone="ch-system-dbus dbus-cleanup-sockets">
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<primary sortas="b-dbus-cleanup-sockets">dbus-cleanup-sockets</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="dbus-daemon">
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<term><command>dbus-daemon</command></term>
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<listitem>
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<para>Is the D-Bus message bus daemon</para>
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<indexterm zone="ch-system-dbus dbus-daemon">
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<primary sortas="b-dbus-daemon">dbus-daemon</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="dbus-launch">
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<term><command>dbus-launch</command></term>
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<listitem>
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<para>Starts <command>dbus-daemon</command> from a shell
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script</para>
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<indexterm zone="ch-system-dbus dbus-launch">
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<primary sortas="b-dbus-launch">dbus-launch</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="dbus-monitor">
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<term><command>dbus-monitor</command></term>
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<listitem>
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<para>Monitors messages passing through a D-Bus message bus</para>
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<indexterm zone="ch-system-dbus dbus-monitor">
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<primary sortas="b-dbus-monitor">dbus-monitor</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="dbus-run-session">
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<term><command>dbus-run-session</command></term>
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<listitem>
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<para>Starts a session bus instance of <command>dbus-daemon</command>
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from a shell script and starts a specified program in that
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session</para>
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<indexterm zone="ch-system-dbus dbus-run-session">
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<primary sortas="b-dbus-run-session">dbus-run-session</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="dbus-send">
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<term><command>dbus-send</command></term>
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<listitem>
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<para>Sends a message to a D-Bus message bus</para>
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<indexterm zone="ch-system-dbus dbus-send">
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<primary sortas="b-dbus-send">dbus-send</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="dbus-test-tool">
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<term><command>dbus-test-tool</command></term>
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<listitem>
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<para>Is a tool to help packages test
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<application>D-Bus</application></para>
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<indexterm zone="ch-system-dbus dbus-test-tool">
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<primary sortas="b-dbus-test-tool">dbus-test-tool</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<!-- This is a very long command name. Excuse the long <primary> statement below. -->
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<varlistentry id="dbus-update-activation-environment">
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<term><command>dbus-update-activation-environment</command></term>
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<listitem>
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<para>Updates environment variables that will be set for
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<application>D-Bus</application> session services</para>
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<indexterm zone="ch-system-dbus dbus-update-activation-environment">
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<primary sortas="b-dbus-update-activation-environment">dbus-update-activation-environment</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="dbus-uuidgen">
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<term><command>dbus-uuidgen</command></term>
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<listitem>
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<para>Generates a universally unique ID</para>
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<indexterm zone="ch-system-dbus dbus-uuidgen">
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<primary sortas="b-dbus-uuidgen">dbus-uuidgen</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="libdbus-1">
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<term><filename class="libraryfile">libdbus-1</filename></term>
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<listitem>
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<para>Contains API functions used to communicate with the D-Bus
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message bus</para>
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<indexterm zone="ch-system-dbus libdbus-1">
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<primary sortas="c-libdbus-1">libdbus-1</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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</variablelist>
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</sect2>
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</sect1>
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