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<?xml version="1.0"?>
<!--*-nxml-*-->
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
<!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
<refentry id="systemd-veritysetup@.service" conditional='HAVE_LIBCRYPTSETUP'>
<refentryinfo>
<title>systemd-veritysetup@.service</title>
<productname>systemd</productname>
</refentryinfo>
<refmeta>
<refentrytitle>systemd-veritysetup@.service</refentrytitle>
<manvolnum>8</manvolnum>
</refmeta>
<refnamediv>
<refname>systemd-veritysetup@.service</refname>
<refname>systemd-veritysetup</refname>
<refpurpose>Disk verity 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 verity
protection block devices. It should be instantiated for each device that requires verity
protection.</para>
<para>At early boot and when the system manager configuration is reloaded kernel command line configuration for
verity protected block devices is translated into <filename>systemd-veritysetup@.service</filename> units by
<citerefentry><refentrytitle>systemd-veritysetup-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para>
<para><filename>systemd-veritysetup@.service</filename> calls <command>systemd-veritysetup</command>.</para>
</refsect1>
<refsect1>
<title>Commands</title>
<para>The following commands are understood by <command>systemd-veritysetup</command>:</para>
<variablelist>
<varlistentry>
<term>
<option>attach</option>
<replaceable>volume</replaceable>
<replaceable>datadevice</replaceable>
<replaceable>hashdevice</replaceable>
<replaceable>roothash</replaceable>
[<replaceable>option</replaceable>...]
</term>
<listitem><para>Create a block device <replaceable>volume</replaceable> using
<replaceable>datadevice</replaceable> and <replaceable>hashdevice</replaceable> as the backing
devices. <replaceable>roothash</replaceable> forms the root of the tree of hashes stored on
<replaceable>hashdevice</replaceable>. See
<ulink url="https://docs.kernel.org/admin-guide/device-mapper/verity.html">
Kernel dm-verity</ulink> documentation for details.
</para></listitem>
</varlistentry>
<varlistentry>
<term>
<option>detach</option>
<replaceable>volume</replaceable>
</term>
<listitem><para>Detach (destroy) the block device
<replaceable>volume</replaceable>.</para></listitem>
</varlistentry>
<varlistentry>
<term>
<option>help</option>
</term>
<listitem><para>Print short information about command syntax.</para></listitem>
</varlistentry>
</variablelist>
</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>
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