#!/bin/bash
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# Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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# Script to increment kernel subkey for firmware updates.
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# Used when revving versions for a firmware update.
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# Load common constants and variables.
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. "$(dirname "$0")/common.sh"
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# Abort on errors.
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set -e
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if [ $# -ne 1 ]; then
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cat <<EOF
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Usage: $0 <keyset directory>
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Increments the kernel subkey in the specified keyset.
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EOF
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exit 1
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fi
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KEY_DIR=$1
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main() {
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load_current_versions "${KEY_DIR}"
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new_firm_ver=$(increment_version "${KEY_DIR}" "firmware_version")
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cd "${KEY_DIR}"
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backup_existing_kernel_subkeys ${CURR_FIRM_VER} ${CURR_KERNKEY_VER}
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cat <<EOF
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Generating new kernel subkey and new kernel keyblock.
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New Firmware version (due to kernel subkey change): ${new_firm_ver}.
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EOF
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make_pair kernel_subkey ${KERNEL_SUBKEY_ALGOID} ${new_firm_ver}
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make_keyblock kernel $KERNEL_KEYBLOCK_MODE kernel_data_key kernel_subkey
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write_updated_version_file ${CURR_FIRMKEY_VER} ${new_firm_ver} \
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${CURR_KERNKEY_VER} ${CURR_KERN_VER}
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}
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main "$@"
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