| 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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| 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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| 6 |
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| 7 | <!ENTITY dbus-download-http "http://dbus.freedesktop.org/releases/dbus/dbus-&lfs-dbus-version;.tar.gz">
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| 8 | ]>
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| 9 |
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| 10 | <sect1 id="dbus" xreflabel="D-Bus-&lfs-dbus-version;">
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| 11 | <?dbhtml filename="dbus.html"?>
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| 12 |
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| 13 | <sect1info>
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| 14 | <othername>$LastChangedBy$</othername>
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| 15 | <date>$Date$</date>
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| 16 | </sect1info>
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| 17 |
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| 18 | <title>D-Bus-&lfs-dbus-version;</title>
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| 19 |
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| 20 | <indexterm zone="dbus">
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| 21 | <primary sortas="a-D-Bus">D-Bus</primary>
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| 22 | </indexterm>
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| 23 |
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| 24 | <sect2 role="package">
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| 25 | <title>Introduction to D-Bus</title>
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| 26 |
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| 27 | <para>
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| 28 | Even though <application>D-Bus</application> was built in
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| 29 | LFS, there are some features provided by the package that
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| 30 | some BLFS packages need, but their dependencies didn't fit
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| 31 | into LFS.
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| 32 | </para>
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| 33 | <!--
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| 34 | <para>
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| 35 | Unlike other packages in BLFS, there is no set version of
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| 36 | <application>D-Bus</application> in this page's title and
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| 37 | no set version specified for download. Version updates to
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| 38 | <application>D-Bus</application> make it possible that the
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| 39 | user's system may have a <application>D-Bus</application>
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| 40 | version different from the one in the current LFS book.
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| 41 | Therefore, users should use the version of
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| 42 | <application>D-Bus</application> that is currently
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| 43 | installed on their system.
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| 44 | </para>
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| 45 | -->
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| 46 | &lfs79_checked;&gcc6_checked;
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| 47 |
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| 48 | <bridgehead renderas="sect3">Package Information</bridgehead>
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| 49 | <itemizedlist spacing="compact">
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| 50 | <listitem>
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| 51 | <para>
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| 52 | Download (HTTP): <ulink url="&dbus-download-http;"/>
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| 53 | </para>
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| 54 | </listitem>
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| 55 | </itemizedlist>
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| 56 | <!--
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| 57 | <note>
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| 58 | <para>
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| 59 | If you are unsure which version needs to be downloaded, issue
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| 60 | <command>dbus-daemon - -version</command> in order to find out.
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| 61 | Some of the commands below might need the version information.
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| 62 | Issue the following command to store the
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| 63 | <application>D-Bus</application> version number into an
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| 64 | environment variable:
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| 65 | </para>
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| 66 |
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| 67 | <screen><userinput>export DBUS_VERSION=$(dbus-daemon - -version | head -n1 | awk '{print $5}')</userinput></screen>
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| 68 | </note>
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| 69 | -->
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| 70 | <bridgehead renderas="sect3">D-Bus Dependencies</bridgehead>
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| 71 |
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| 72 | <bridgehead renderas="sect4">Required</bridgehead>
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| 73 | <para role="required">
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| 74 | <xref linkend="xorg7-lib"/> (for X11 autolaunch support)
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| 75 | </para>
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| 76 |
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| 77 | <bridgehead renderas="sect4">Optional</bridgehead>
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| 78 | <para role="optional">
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| 79 | For the tests:
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| 80 | <xref linkend="dbus-glib"/>,
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| 81 | <xref linkend="dbus-python"/>,
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| 82 | <xref linkend="pygobject2"/> and
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| 83 | <xref linkend="valgrind"/>;
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| 84 |
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| 85 | for documentation:
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| 86 | <xref linkend="doxygen"/>,
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| 87 | <xref linkend="xmlto"/>,
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| 88 | <ulink url="https://pypi.python.org/pypi/mallard-ducktype">Ducktype</ulink>,
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| 89 | and
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| 90 | <ulink url="http://ftp.gnome.org/pub/gnome/sources/yelp-tools/">Yelp Tools</ulink>
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| 91 | </para>
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| 92 |
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| 93 | <para condition="html" role="usernotes">User Notes:
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| 94 | <ulink url="&blfs-wiki;/dbus"/>
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| 95 | </para>
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| 96 | </sect2>
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| 97 |
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| 98 | <sect2 role="installation">
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| 99 | <title>Installation of D-Bus</title>
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| 100 |
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| 101 | <para>
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| 102 | Rebuild <application>D-Bus</application> by running the
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| 103 | following commands:
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| 104 | </para>
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| 105 |
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| 106 | <screen><userinput>./configure --prefix=/usr \
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| 107 | --sysconfdir=/etc \
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| 108 | --localstatedir=/var \
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| 109 | --with-console-auth-dir=/run/console \
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| 110 | --docdir=/usr/share/doc/dbus-&lfs-dbus-version; &&
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| 111 | make</userinput></screen>
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| 112 |
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| 113 | <para>
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| 114 | See below for test instructions.
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| 115 | </para>
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| 116 |
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| 117 | <warning>
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| 118 | <para>
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| 119 | Installing the package will override all files installed by
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| 120 | <application>D-Bus</application> in LFS. It is critical that
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| 121 | nothing uses <application>D-Bus</application> libraries or
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| 122 | programs during the installation. The best way to ensure that these
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| 123 | libraries are not being used is to run the installation in rescue mode.
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| 124 | To switch to rescue mode, run the following command as the
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| 125 | <systemitem class="username">root</systemitem> user (from a TTY):
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| 126 | </para>
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| 127 |
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| 128 | <screen role="root"><userinput>systemctl start rescue.target</userinput></screen>
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| 129 | </warning>
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| 130 |
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| 131 | <para>
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| 132 | Now, as the <systemitem class="username">root</systemitem> user:
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| 133 | </para>
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| 134 |
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| 135 | <screen role="root"><userinput>make install</userinput></screen>
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| 136 |
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| 137 | <para>
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| 138 | The shared library needs to be moved to
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| 139 | <filename class="directory">/lib</filename>, and as a result the
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| 140 | <filename class="extension">.so</filename> file in
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| 141 | <filename class="directory">/usr/lib</filename> will need to be
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| 142 | recreated. Run the following command as the
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| 143 | <systemitem class="username">root</systemitem> user:
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| 144 | </para>
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| 145 |
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| 146 | <screen><userinput remap="install">mv -v /usr/lib/libdbus-1.so.* /lib
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| 147 | ln -sfv ../../lib/$(readlink /usr/lib/libdbus-1.so) /usr/lib/libdbus-1.so</userinput></screen>
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| 148 |
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| 149 | <para>
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| 150 | If you are using a DESTDIR install,
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| 151 | <command>dbus-daemon-launch-helper</command> needs to be fixed
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| 152 | afterwards. Issue, as <systemitem class="username">root</systemitem>
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| 153 | user:
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| 154 | </para>
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| 155 |
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| 156 | <screen role="root"><userinput>chown -v root:messagebus /usr/libexec/dbus-daemon-launch-helper &&
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| 157 | chmod -v 4750 /usr/libexec/dbus-daemon-launch-helper</userinput></screen>
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| 158 |
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| 159 |
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| 160 | <para>
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| 161 | At this point, you should reload the systemd daemon, and reenter
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| 162 | multi-user mode with the following commands (as the
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| 163 | <systemitem class="username">root</systemitem> user):
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| 164 | </para>
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| 165 |
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| 166 | <screen role="root"><userinput>systemctl daemon-reload
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| 167 | systemctl start multi-user.target</userinput></screen>
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| 168 |
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| 169 | <para>
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| 170 | The <application>D-Bus</application> tests cannot be run until after
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| 171 | <xref linkend="dbus-glib"/> has been installed. They must be run as
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| 172 | an unprivileged user from a local session. If you want to run only
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| 173 | the unit tests, replace <parameter>--enable-tests</parameter> in the
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| 174 | command below with <parameter>--enable-embedded-tests</parameter>,
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| 175 | otherwise <xref linkend="dbus-python"/> has to be installed before
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| 176 | the tests are run. The tests require passing additional parameters to
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| 177 | <command>configure</command> and exposing additional functionality in
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| 178 | the binaries. These interfaces are not intended to be used in a
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| 179 | production build of <application>D-Bus</application>. If you would
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| 180 | like to run the tests, issue the following commands:
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| 181 | </para>
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| 182 |
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| 183 | <screen><userinput>make distclean &&
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| 184 | ./configure --enable-tests \
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| 185 | --enable-asserts \
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| 186 | --disable-doxygen-docs \
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| 187 | --disable-xml-docs \
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| 188 | --disable-static \
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| 189 | --with-console-auth-dir=/run/console/ \
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| 190 | --docdir=/usr/share/doc/dbus-&lfs-dbus-version; &&
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| 191 | make &&
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| 192 | make check</userinput></screen>
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| 193 |
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| 194 | <para>
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| 195 | There has been a report that the tests may fail if running inside a
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| 196 | Midnight Commander shell. You may get out-of-memory error messages when
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| 197 | running the tests. These are normal and can be safely ignored.
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| 198 | </para>
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| 199 |
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| 200 | </sect2>
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| 201 |
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| 202 | <sect2 role="commands">
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| 203 | <title>Command Explanations</title>
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| 204 |
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| 205 | <para>
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| 206 | <parameter>--disable-doxygen-docs</parameter>: This switch disables
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| 207 | doxygen documentation build and install, if you have
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| 208 | <application>doxygen</application> installed. Delete, if
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| 209 | <application>doxygen</application> is installed and you wish to build and
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| 210 | install them.
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| 211 | </para>
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| 212 |
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| 213 | <para>
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| 214 | <parameter>--disable-xml-docs</parameter>: This switch disables html
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| 215 | documentation build and install, if you have
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| 216 | <application>xmlto</application> installed. Delete, if
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| 217 | <application>xmlto</application> is installed and you wish to build and
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| 218 | install them.
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| 219 | </para>
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| 220 |
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| 221 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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| 222 | href="../../xincludes/static-libraries.xml"/>
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| 223 |
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| 224 | <para>
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| 225 | <parameter>--with-console-auth-dir=/run/console/</parameter>: This
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| 226 | parameter specifies location of the
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| 227 | <application>ConsoleKit</application> auth dir.
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| 228 | </para>
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| 229 |
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| 230 | <para>
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| 231 | <parameter>--enable-tests</parameter>: Build extra parts of the code to
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| 232 | support all tests. Configure will end with a NOTE warning about increased
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| 233 | size of libraries and decreased security.
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| 234 | </para>
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| 235 |
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| 236 | <para>
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| 237 | <parameter>--enable-embedded-tests</parameter>: Build extra parts of the
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| 238 | code to support only unit tests. Configure will end with a NOTE warning
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| 239 | about increased size of libraries and decreased security.
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| 240 | </para>
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| 241 |
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| 242 | <para>
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| 243 | <parameter>--enable-asserts</parameter>: Enable debugging code to run
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| 244 | assertions for statements normally assumed to be true. This prevents a
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| 245 | warning that '<parameter>--enable-tests</parameter>' on its own is only
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| 246 | useful for profiling and might not give true results for all tests, but
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| 247 | adds its own NOTE that this should not be used in a production build.
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| 248 | </para>
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| 249 |
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| 250 | </sect2>
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| 251 |
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| 252 | <sect2 role="configuration">
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| 253 | <title>Configuring D-Bus</title>
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| 254 |
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| 255 | <sect3 id="dbus-config">
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| 256 | <title>Config Files</title>
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| 257 |
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| 258 | <para>
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| 259 | <filename>/etc/dbus-1/session.conf</filename>,
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| 260 | <filename>/etc/dbus-1/system.conf</filename> and
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| 261 | <filename>/etc/dbus-1/system.d/*</filename>
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| 262 | </para>
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| 263 |
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| 264 | <indexterm zone="dbus dbus-config">
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| 265 | <primary sortas="e-etc-dbus-1-session.conf">/etc/dbus-1/session.conf</primary>
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| 266 | </indexterm>
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| 267 |
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| 268 | <indexterm zone="dbus dbus-config">
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| 269 | <primary sortas="e-etc-dbus-1/system.conf">/etc/dbus-1/system.conf</primary>
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| 270 | </indexterm>
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| 271 |
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| 272 | <indexterm zone="dbus dbus-config">
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| 273 | <primary sortas="e-etc-dbus-1-system.d-star">/etc/dbus-1/system.d/*</primary>
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| 274 | </indexterm>
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| 275 |
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| 276 | </sect3>
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| 277 |
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| 278 | <sect3 id="dbus-session-config" xreflabel="D-Bus custom services directory">
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| 279 | <title>Configuration Information</title>
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| 280 |
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| 281 | <para>
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| 282 | The configuration files listed above should probably not be
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| 283 | modified. If changes are required, you should create
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| 284 | <filename>/etc/dbus-1/session-local.conf</filename> and/or
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| 285 | <filename>/etc/dbus-1/system-local.conf</filename> and make any
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| 286 | desired changes to these files.
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| 287 | </para>
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| 288 |
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| 289 | <para>
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| 290 | If any packages install a
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| 291 | <application>D-Bus</application> <filename>.service</filename>
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| 292 | file outside of the standard <filename
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| 293 | class="directory">/usr/share/dbus-1/services</filename> directory,
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| 294 | that directory should be added to the local session configuration.
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| 295 | For instance, <filename
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| 296 | class="directory">/usr/local/share/dbus-1/services</filename> can
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| 297 | be added by performing the following commands as the
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| 298 | <systemitem class="username">root</systemitem> user:
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| 299 | </para>
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| 300 |
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| 301 | <screen role="root"><userinput>cat > /etc/dbus-1/session-local.conf << "EOF"
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| 302 | <literal><!DOCTYPE busconfig PUBLIC
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| 303 | "-//freedesktop//DTD D-BUS Bus Configuration 1.0//EN"
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| 304 | "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">
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| 305 | <busconfig>
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| 306 |
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| 307 | <!-- Search for .service files in /usr/local -->
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| 308 | <servicedir>/usr/local/share/dbus-1/services</servicedir>
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| 309 |
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| 310 | </busconfig></literal>
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| 311 | EOF</userinput></screen>
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| 312 |
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| 313 | </sect3>
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| 314 |
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| 315 | <sect3 id="dbus-session">
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| 316 | <title>D-Bus Session Daemon</title>
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| 317 |
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| 318 | <para>
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| 319 | There are many methods you can use to start a session daemon
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| 320 | using the <command>dbus-launch</command> command. Review the
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| 321 | <command>dbus-launch</command> man page for details about the
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| 322 | available parameters and options. Here are some suggestions and
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| 323 | examples:
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| 324 | </para>
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| 325 |
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| 326 | <itemizedlist spacing="compact">
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| 327 | <listitem>
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| 328 | <para>
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| 329 | Add <command>dbus-launch</command> to the line in the
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| 330 | <filename>~/.xinitrc</filename> file that starts your graphical
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| 331 | desktop environment.
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| 332 | </para>
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| 333 | </listitem>
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| 334 | <listitem>
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| 335 | <para>
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| 336 | If you use <command>xdm</command> or some other display manager
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| 337 | that calls the <filename>~/.xsession</filename> file, you can add
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| 338 | <command>dbus-launch</command> to the line in your
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| 339 | <filename>~/.xsession</filename> file that starts your graphical
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| 340 | desktop environment. The syntax would be similar to the example in
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| 341 | the <filename>~/.xinitrc</filename> file.
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| 342 | </para>
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| 343 | </listitem>
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| 344 | <listitem>
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| 345 | <para>
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| 346 | The examples shown previously use
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| 347 | <command>dbus-launch</command> to specify a program to be run. This
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| 348 | has the benefit (when also using the
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| 349 | <parameter>--exit-with-session</parameter> parameter) of stopping the
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| 350 | session daemon when the specified program is stopped. You can also
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| 351 | start the session daemon in your system or personal startup scripts
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| 352 | by adding the following lines:
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| 353 | </para>
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| 354 |
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| 355 | <screen><userinput><literal># Start the D-Bus session daemon
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| 356 | eval `dbus-launch`
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| 357 | export DBUS_SESSION_BUS_ADDRESS</literal></userinput></screen>
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| 358 |
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| 359 | <para>
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| 360 | This method will not stop the session daemon when you exit
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| 361 | your shell, therefore you should add the following line to your
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| 362 | <filename>~/.bash_logout</filename> file:
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| 363 | </para>
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| 364 |
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| 365 | <screen><userinput><literal># Kill the D-Bus session daemon
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| 366 | kill $DBUS_SESSION_BUS_PID</literal></userinput></screen>
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| 367 | </listitem>
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| 368 |
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| 369 | <listitem>
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| 370 | <para>
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| 371 | A hint has been written that provides ways to start scripts
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| 372 | using the KDM session manager of KDE. The concepts in this hint could
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| 373 | possibly be used with other session managers as well. The hint is
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| 374 | located at <ulink
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| 375 | url="&hints-root;/downloads/files/execute-session-scripts-using-kdm.txt"/>.
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| 376 | </para>
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| 377 | </listitem>
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| 378 |
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| 379 | </itemizedlist>
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| 380 |
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| 381 | </sect3>
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| 382 |
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| 383 | </sect2>
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| 384 |
|
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| 385 | <sect2 role="content">
|
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| 386 | <title>Contents</title>
|
|---|
| 387 |
|
|---|
| 388 | <para>
|
|---|
| 389 | A list of the installed files, along with their short
|
|---|
| 390 | descriptions can be found at
|
|---|
| 391 | <ulink url="&lfs-root;/chapter06/dbus.html#contents-dbus"/>.
|
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| 392 | </para>
|
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| 393 |
|
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| 394 | </sect2>
|
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| 395 |
|
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| 396 | </sect1>
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| 397 |
|
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