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33 lines
666 B
Bash
33 lines
666 B
Bash
#!/usr/bin/env bash
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# Copyright (c) Edgeless Systems GmbH
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#
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# SPDX-License-Identifier: AGPL-3.0-only
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# This script contains shared functions for pcr calculation.
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set -euo pipefail
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shopt -s inherit_errexit
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pcr_extend() {
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local CURRENT_PCR="$1"
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local EXTEND_WITH="$2"
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local HASH_FUNCTION="$3"
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( echo -n "${CURRENT_PCR}" | xxd -r -p ; echo -n "${EXTEND_WITH}" | xxd -r -p; ) | ${HASH_FUNCTION} | cut -d " " -f 1
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}
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extract () {
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local image="$1"
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local path="$2"
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local output="$3"
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sudo systemd-dissect --copy-from "${image}" "${path}" "${output}"
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}
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mktempdir () {
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mktemp -d
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}
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cleanup () {
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local dir="$1"
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rm -rf "${dir}"
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}
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