#!/bin/sh -eu
tool=$(readlink -e "${0%/*}/..")
. "$tool"/host/lib.sh

part="$1"
eval "dev=\"\$vm_dev_disk_$part\""
test -e /dev/mapper/${vm_lvm_lv}_${part}_deciphered ||
sudo /bin/sh -c "/lib/cryptsetup/scripts/decrypt_derived ${vm_lvm_lv}_root_deciphered |
cryptsetup luksOpen --key-file=- $dev ${vm_lvm_lv}_${part}_deciphered"