From 14de7ef914167ed08af6c0fb283e91f25e68b60f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ga=C3=ABl=20PORTAY?= <gael.portay@collabora.com>
Date: Fri, 25 Dec 2020 03:08:05 -0500
Subject: veritysetup: add support for hash-offset option

The verity parameter hash_area_offset allows to locate the superblock in
the hash device. It can be used to have a single device which contains
both data and hashes.

This adds the option hash-offset=BYTES (sixth argument) which is the
equivalent of the option --hash-offset in the veritysetup world.

See `veritysetup(8)` for more details.
---
 man/systemd-veritysetup-generator.xml | 3 ++-
 man/veritytab.xml                     | 7 +++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

(limited to 'man')

diff --git a/man/systemd-veritysetup-generator.xml b/man/systemd-veritysetup-generator.xml
index 37ded91a93..6098895f55 100644
--- a/man/systemd-veritysetup-generator.xml
+++ b/man/systemd-veritysetup-generator.xml
@@ -85,7 +85,8 @@
         <term><varname>systemd.verity_root_options=</varname></term>
 
         <listitem><para>Takes a comma-separated list of dm-verity options. Expects the following options
-        <option>ignore-corruption</option>, <option>restart-on-corruption</option>, <option>ignore-zero-blocks</option>,
+        <option>hash-offset=<replaceable>BYTES</replaceable></option>, <option>ignore-corruption</option>,
+        <option>restart-on-corruption</option>, <option>ignore-zero-blocks</option>,
         <option>check-at-most-once</option>, <option>panic-on-corruption</option> and
         <option>root-hash-signature=<replaceable>PATH</replaceable>|base64:<replaceable>HEX</replaceable></option>. See
         <citerefentry project='die-net'><refentrytitle>veritysetup</refentrytitle><manvolnum>8</manvolnum></citerefentry> for more
diff --git a/man/veritytab.xml b/man/veritytab.xml
index dc2f11c31e..ec5d0f45a1 100644
--- a/man/veritytab.xml
+++ b/man/veritytab.xml
@@ -60,6 +60,13 @@ This is based on crypttab(5).
 
     <variablelist class='fstab-options'>
 
+      <varlistentry>
+        <term><option>hash-offset=<replaceable>BYTES</replaceable></option></term>
+
+        <listitem><para>Offset of hash area/superblock on <literal>hash-device</literal>. (Multiples of 512 bytes.)
+        </para></listitem>
+      </varlistentry>
+
       <varlistentry>
         <term><option>ignore-corruption</option></term>
         <term><option>restart-on-corruption</option></term>
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