#!/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

#######################################
# Setup chrony NTPSec client.
# Globals:
#   ARY_NTPSRVR
#   DIR_BAK
#   NL
#   TARGET
#   VAR_SETUP_PATH
# Arguments:
#   None
# Returns:
#   0: on success
#######################################
setup_chrony() {
  # shellcheck disable=SC2155
  declare var_of="$(mktemp --tmpdir --mode=0600 /tmp/var_of.XXXXXXXX)"
  declare var_ntp_server

  for var_ntp_server in "${ARY_NTPSRVR[@]}"; do
    printf "server %s iburst nts minpoll 5 maxpoll 9 %s" "${var_ntp_server}" "${NL}" >> "${var_of}"
  done
  printf "# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh %s" "${NL}" >> "${var_of}"

  mkdir -p "${TARGET}/var/log/chrony"
  do_in_target "${TARGET}" apt-get install chrony -y

  if [[ ! -e "${TARGET}/etc/systemd/system/multi-user.target.wants/chrony.service" ]]; then
    ln -s "${TARGET}/lib/systemd/system/chrony.service" "${TARGET}/etc/systemd/system/multi-user.target.wants/chrony.service"
  fi

  mkdir -p "${DIR_BAK}/etc/chrony"
  mv "${TARGET}/etc/chrony/chrony.conf" "${DIR_BAK}/etc/chrony/chrony.conf.bak"

  install -D -m 0644 -o root -g root "${VAR_SETUP_PATH}/includes/etc/chrony/chrony.cnf" "${TARGET}/etc/chrony/chrony.conf"
  cat "${var_of}" >> "${TARGET}/etc/chrony/chrony.conf"

  do_log "info" "false" "Chrony NTPsec client installed."

  rm -f "${var_of}"
  unset var_of

  return 0
}
# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh