1#!/bin/bash 2# Copyright (c) 2011 The Chromium OS Authors. All rights reserved. 3# Use of this source code is governed by a BSD-style license that can be 4# found in the LICENSE file. 5 6# Script to increment kernel subkey and datakey for firmware updates. 7# Used when revving versions for a firmware update. 8 9# Load common constants and variables. 10. "${0%/*}"/common.sh 11 12# Abort on errors. 13set -e 14 15if [ $# -ne 1 ]; then 16 cat <<EOF 17Usage: $0 <keyset directory> 18 19Increments the kernel subkey, data key and firmware version in the 20specified keyset. 21EOF 22 exit 1 23fi 24 25KEY_DIR=$1 26 27main() { 28 load_current_versions "${KEY_DIR}" 29 new_kernkey_ver=$(increment_version "${KEY_DIR}" "kernel_key_version") 30 new_firm_ver=$(increment_version "${KEY_DIR}" "firmware_version") 31 32 cd "${KEY_DIR}" 33 backup_existing_kernel_subkeys ${CURR_FIRM_VER} ${CURR_KERNKEY_VER} 34 backup_existing_kernel_data_keys ${CURR_FIRM_VER} ${CURR_KERNKEY_VER} 35 36 cat <<EOF 37Generating new kernel subkey, data keys and new kernel keyblock. 38 39New Firmware version (due to kernel subkey change): ${new_firm_ver}. 40New Kernel key version (due to kernel datakey change): ${new_kernkey_ver}. 41EOF 42 make_pair kernel_subkey ${KERNEL_SUBKEY_ALGOID} ${new_firm_ver} 43 make_pair kernel_data_key ${KERNEL_DATAKEY_ALGOID} ${new_kernkey_ver} 44 make_keyblock kernel ${KERNEL_KEYBLOCK_MODE} kernel_data_key kernel_subkey 45 46 write_updated_version_file ${CURR_FIRMKEY_VER} ${new_firm_ver} \ 47 ${new_kernkey_ver} ${CURR_KERN_VER} 48} 49 50main "$@" 51