1 #!/bin/bash 2 # Copyright (c) 2012 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 data key for firmware updates. 7 # Used when revving versions for a firmware update. 8 9 # Load common constants and variables. 10 . "$(dirname "$0")/common.sh" 11 12 # Abort on errors. 13 set -e 14 15 if [ $# -ne 1 ]; then 16 cat <<EOF 17 Usage: $0 <keyset directory> 18 19 Increments the kernel data key in the specified keyset. 20 EOF 21 exit 1 22 fi 23 24 KEY_DIR=$1 25 26 main() { 27 load_current_versions "${KEY_DIR}" 28 new_kernkey_ver=$(increment_version "${KEY_DIR}" "kernel_key_version") 29 30 cd "${KEY_DIR}" 31 backup_existing_kernel_data_keys ${CURR_FIRM_VER} ${CURR_KERNKEY_VER} 32 33 cat <<EOF 34 Generating new kernel data version, and new kernel keyblock. 35 36 New Kernel data key version: ${new_kernkey_ver}. 37 EOF 38 make_pair kernel_data_key ${KERNEL_DATAKEY_ALGOID} ${new_kernkey_ver} 39 make_keyblock kernel ${KERNEL_KEYBLOCK_MODE} kernel_data_key kernel_subkey 40 41 write_updated_version_file ${CURR_FIRMKEY_VER} ${CURR_FIRM_VER} \ 42 ${new_kernkey_ver} ${CURR_KERN_VER} 43 } 44 45 main "$@" 46
