46 lines
1.4 KiB
Bash
46 lines
1.4 KiB
Bash
#!/bin/bash
|
|
# SPDX-Version: 3.0
|
|
# SPDX-CreationInfo: 2025-06-17; WEIDNER, Marc S.; <msw@coresecret.dev>
|
|
# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.installer.git
|
|
# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
|
|
# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
|
|
# SPDX-FileType: SOURCE
|
|
# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
|
|
# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
|
|
# SPDX-PackageName: CISS.debian.installer
|
|
# SPDX-Security-Contact: security@coresecret.eu
|
|
|
|
guard_sourcing
|
|
|
|
#######################################
|
|
# Hardening hardening_jitterentropy.
|
|
# Globals:
|
|
# RECOVERY
|
|
# TARGET
|
|
# VAR_RUN_RECOVERY
|
|
# Arguments:
|
|
# None
|
|
# Returns:
|
|
# 0: on success
|
|
#######################################
|
|
hardening_jitterentropy() {
|
|
declare var_target="${TARGET}"
|
|
|
|
### Check for TARGET / RECOVERY.
|
|
[[ "${VAR_RUN_RECOVERY}" == "true" ]] && var_target="${RECOVERY}"
|
|
|
|
mkdir -p "${var_target}/etc/systemd/system/jitterentropy-rngd.service.d"
|
|
|
|
cat << EOF >> "${var_target}/etc/systemd/system/jitterentropy-rngd.service.d/override.conf"
|
|
[Service]
|
|
ExecStart=
|
|
ExecStart=/usr/sbin/jitterentropy-rngd --osr=2
|
|
EOF
|
|
|
|
guard_dir && return 0
|
|
}
|
|
### Prevents accidental 'unset -f'.
|
|
# shellcheck disable=SC2034
|
|
readonly -f hardening_jitterentropy
|
|
# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh
|