#!/bin/bash

# if cryptsetup is not installed, then we cannot support encrypted devices.
which cryptsetup >/dev/null 2>&1 || exit 1

# hostonly checking should only return true if root is on a LUKS device
# in some way, but I am too lazy to figure out how to do that.
# Instead, fail if we do not have a LUKS device in use somewhere.

. $dracutfunctions

is_crypt() { [[ $(get_fs_type /dev/block/$1) = crypto_LUKS ]]; }

[[ $1 = '-h' ]] && {
rootdev=$(find_root_block_device)
if [[ $rootdev ]]; then
# root lives on a block device, so we can be more precise about
# hostonly checking
check_block_and_slaves is_crypt "$rootdev" || exit 1
else
# root is not on a block device, use the shotgun approach
blkid | grep -q crypto\?_LUKS || exit 1
fi
}

exit 0