From 7871c8e9327e4e5b18de9d8081b0f32fa38c2c1f Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Mon, 24 Dec 2012 19:03:59 +0100
Subject: hostnamed: make chassis type configurable via /etc/machine-info

For many usecases it is useful to store the chassis type somewhere, and
/etc/machine-info sounds like a good place. Ideally we could always
detect the chassis type from firmware, but frequently that's not
available and in many embedded devices probably entirely unrealistic.

This patch adds a configurable setting CHASSIS= to /etc/machine-info and
exposes this via hostnamectl/hostnamed. hostnamed will guess the chassis
type from DMI if nothing is set explicitly. I also added support for
detecting it from ACPI, which should be more useful as ACPI 5.0 actually
knows a "tablet" chassis type, which neither DMI nor previous ACPI
versions knew.

This also enables DMI-based and ACPI-based detection for non-x86 systems
as ACPI is apparently coming to ARM platforms soon.

I tried to minimize the vocabulary of chassis types understood and
added: desktop, laptop, server, tablet, handset. This is much less than
either APCI or DMI know. If we need more types later on we can easily
add them.
---
 man/hostnamectl.xml | 32 +++++++++++++++++++++++++++++---
 1 file changed, 29 insertions(+), 3 deletions(-)

(limited to 'man/hostnamectl.xml')

diff --git a/man/hostnamectl.xml b/man/hostnamectl.xml
index c36f522c8..a29d2f5b7 100644
--- a/man/hostnamectl.xml
+++ b/man/hostnamectl.xml
@@ -80,8 +80,8 @@
                 <para>The static host name is stored in
                 <filename>/etc/hostname</filename>, see
                 <citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>5</manvolnum></citerefentry>
-                for more information. The pretty host name and icon
-                name are stored in
+                for more information. The pretty host name, chassis
+                type and icon name are stored in
                 <filename>/etc/machine-info</filename>, see
                 <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
         </refsect1>
@@ -198,8 +198,34 @@
                                 Naming Specification</ulink>. Pass an
                                 empty string to this operation to
                                 reset the icon name to the default
+                                value which is determined from chassis
+                                type (see below) and possibly other
+                                parameters.</para></listitem>
+                        </varlistentry>
+
+                        <varlistentry>
+                                <term><command>set-chassis [TYPE]</command></term>
+
+                                <listitem><para>Set the chassis
+                                type. The chassis type is used by some
+                                graphical applications to visualize
+                                the host or alter user
+                                interaction. Currently, the following
+                                chassis types are defined:
+                                <literal>desktop</literal>,
+                                <literal>laptop</literal>,
+                                <literal>server</literal>,
+                                <literal>tablet</literal>,
+                                <literal>handset</literal>, as well as
+                                the special chassis types
+                                <literal>vm</literal> and
+                                <literal>container</literal> for
+                                virtualized systems that lack an
+                                immediate physical chassis. Pass an
+                                empty string to this operation to
+                                reset the chassis type to the default
                                 value which is determined from the
-                                system form factor and possibly other
+                                firmware and possibly other
                                 parameters.</para></listitem>
                         </varlistentry>
 
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