verity: add support for setting up verity-protected root disks in the initrd

This adds a generator and a small service that will look for "roothash="
on the kernel command line and use it for setting up a very partition
for the root device.

This provides similar functionality to nspawn's existing --roothash=
switch.

1 files changed, 75 insertions, 0 deletions

diff --git a/man/systemd-veritysetup@.service.xml b/man/systemd-veritysetup@.service.xml
new file mode 100644
index 0000000000..173e5358e0
--- /dev/null
+++ b/man/systemd-veritysetup@.service.xml
@@ -0,0 +1,75 @@
+<?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 2016 Lennart Poettering
+
+  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-veritysetup@.service" conditional='HAVE_LIBCRYPTSETUP'>
+
+  <refentryinfo>
+    <title>systemd-veritysetup@.service</title>
+    <productname>systemd</productname>
+
+    <authorgroup>
+      <author>
+        <contrib>Developer</contrib>
+        <firstname>Lennart</firstname>
+        <surname>Poettering</surname>
+        <email>lennart@poettering.net</email>
+      </author>
+    </authorgroup>
+  </refentryinfo>
+
+  <refmeta>
+    <refentrytitle>systemd-veritysetup@.service</refentrytitle>
+    <manvolnum>8</manvolnum>
+  </refmeta>
+
+  <refnamediv>
+    <refname>systemd-veritysetup@.service</refname>
+    <refname>systemd-veritysetup</refname>
+    <refpurpose>Disk integrity protection logic</refpurpose>
+  </refnamediv>
+
+  <refsynopsisdiv>
+    <para><filename>systemd-veritysetup@.service</filename></para>
+    <para><filename>/usr/lib/systemd/systemd-veritysetup</filename></para>
+  </refsynopsisdiv>
+
+  <refsect1>
+    <title>Description</title>
+
+    <para><filename>systemd-veritysetup@.service</filename> is a service responsible for setting up integrity
+    protection (verity) block devices. It should be instantiated for each device that requires integrity
+    protection.</para>
+
+    <para>At early boot and when the system manager configuration is reloaded kernel command line configuration for
+    integrity protected block devices is translated into <filename>systemd-veritysetup@.service</filename> units by
+    <citerefentry><refentrytitle>systemd-veritysetup-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para>
+  </refsect1>
+
+  <refsect1>
+    <title>See Also</title>
+    <para>
+      <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+      <citerefentry><refentrytitle>systemd-veritysetup-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
+      <citerefentry project='die-net'><refentrytitle>veritysetup</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+     </para>
+  </refsect1>
+
+</refentry>