resolved: add daemon to manage resolv.conf

Also remove the equivalent functionality from networkd.

3 files changed, 176 insertions, 5 deletions

diff --git a/man/resolved.conf.xml b/man/resolved.conf.xml
new file mode 100644
index 0000000000..04e510fbe3
--- /dev/null
+++ b/man/resolved.conf.xml
@@ -0,0 +1,91 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml-stylesheet type="text/xsl" href="http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl"?>
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+        "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+  This file is part of systemd.
+
+  Copyright 2014 Tom Gundersen
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="resolved.conf" conditional='ENABLE_RESOLVED'>
+        <refentryinfo>
+                <title>resolved.conf</title>
+                <productname>systemd</productname>
+
+                <authorgroup>
+                        <author>
+                                <contrib>Developer</contrib>
+                                <firstname>Tom</firstname>
+                                <surname>Gundersen</surname>
+                                <email>teg@jklm.no</email>
+                        </author>
+                </authorgroup>
+        </refentryinfo>
+
+        <refmeta>
+                <refentrytitle>resolved.conf</refentrytitle>
+                <manvolnum>5</manvolnum>
+        </refmeta>
+
+        <refnamediv>
+                <refname>resolved.conf</refname>
+                <refpurpose>Network Name Resolution configuration file</refpurpose>
+        </refnamediv>
+
+        <refsynopsisdiv>
+                <para><filename>/etc/systemd/resolved.conf</filename></para>
+        </refsynopsisdiv>
+
+        <refsect1>
+                <title>Description</title>
+
+                <para>When starting, systemd-resolved will read the
+                configuration file <filename>resolved.conf</filename>.
+                This configuration file determines the fallback DNS
+                servers.</para>
+
+        </refsect1>
+
+        <refsect1>
+                <title>Options</title>
+
+                <variablelist class='network-directives'>
+
+                        <varlistentry>
+                                <term><varname>DNS=</varname></term>
+                                <listitem><para>A space separated list of IPv4 and IPv6
+                                addresses to be used as the fallback DNS servers. Note that
+                                the servers obtained from
+                                <citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+                                take precedence. If this option is not given, a compiled-in
+                                list of DNS servers is used instead.</para></listitem>
+                        </varlistentry>
+
+                </variablelist>
+        </refsect1>
+
+        <refsect1>
+                  <title>See Also</title>
+                  <para>
+                        <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+                        <citerefentry><refentrytitle>systemd-resolved.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
+                        <citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+                  </para>
+        </refsect1>
+
+</refentry>
diff --git a/man/systemd-networkd.service.xml b/man/systemd-networkd.service.xml
index 75ea1a4b4e..0570798878 100644
--- a/man/systemd-networkd.service.xml
+++ b/man/systemd-networkd.service.xml
@@ -72,11 +72,6 @@
                 restarting networkd does not cut the network connection, and, in particular,
                 that it is safe to transition between the initrd and the real root,
                 and back.</para>
-
-                <para>Nameservers configured in networkd, or received over DHCP
-                are exposed in <filename>/run/systemd/network/resolv.conf</filename>.
-                This file should not be used directly, but only through a symlink
-                from <filename>/etc/resolv.conf</filename>.</para>
         </refsect1>
 
         <refsect1><title>Configuration Files</title>
diff --git a/man/systemd-resolved.service.xml b/man/systemd-resolved.service.xml
new file mode 100644
index 0000000000..cd73cb73c7
--- /dev/null
+++ b/man/systemd-resolved.service.xml
@@ -0,0 +1,85 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+        "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+  This file is part of systemd.
+
+  Copyright 2014 Tom Gundersen
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="systemd-resolved.service" conditional='ENABLE_RESOLVED'>
+
+        <refentryinfo>
+                <title>systemd-resolved.service</title>
+                <productname>systemd</productname>
+
+                <authorgroup>
+                        <author>
+                                <contrib>Developer</contrib>
+                                <firstname>Tom</firstname>
+                                <surname>Gundersen</surname>
+                                <email>teg@jklm.no</email>
+                        </author>
+                </authorgroup>
+        </refentryinfo>
+
+        <refmeta>
+                <refentrytitle>systemd-resolved.service</refentrytitle>
+                <manvolnum>8</manvolnum>
+        </refmeta>
+
+        <refnamediv>
+                <refname>systemd-resolved.service</refname>
+                <refname>systemd-resolved</refname>
+                <refpurpose>Network Name Resolution manager</refpurpose>
+        </refnamediv>
+
+        <refsynopsisdiv>
+                <para><filename>systemd-resolved.service</filename></para>
+                <para><filename>/usr/lib/systemd/systemd-resolved</filename></para>
+        </refsynopsisdiv>
+
+        <refsect1>
+                <title>Description</title>
+
+                <para><command>systemd-networkd</command> is a system
+                service that manages network name resolution. It does so by
+		generating <filename>/run/systemd/network/resolv.conf</filename>,
+		which may be symlinked from <filename>/etc/resolv.conf</filename>.
+		The contents is generated from the global settings in
+                <citerefentry><refentrytitle>resolved.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+		the per-link static settings in <filename>.network</filename> files,
+		and the per-link dynamic settings received over DHCP. See
+                <citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+		for more details.</para>
+
+                <para>Note that <filename>/run/systemd/network/resolv.conf</filename>
+                should not be used directly, but only through a symlink from
+		<filename>/etc/resolv.conf</filename>.</para>
+        </refsect1>
+
+        <refsect1>
+                <title>See Also</title>
+                <para>
+			<citerefentry><refentrytitle>resolved.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+                        <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+                        <citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+                        <citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+                </para>
+        </refsect1>
+
+</refentry>