Marc S. Weidner
ad4c56fdb5
All checks were successful
🛡️ Shell Script Linting / 🛡️ Shell Script Linting (push) Successful in 1m31s
Signed-off-by: Marc S. Weidner <msw@coresecret.dev>
106 lines
3.8 KiB
Bash
106 lines
3.8 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
|
|
|
|
#######################################
|
|
# Installs the desired security extension framework.
|
|
# Globals:
|
|
# TARGET
|
|
# VAR_SEC_FW
|
|
# VAR_SSH_PORT
|
|
# Arguments:
|
|
# None
|
|
# Returns:
|
|
# 0: on success
|
|
#######################################
|
|
installation_security() {
|
|
### Declare Arrays, HashMaps, and Variables.
|
|
declare -r var_logfile="/root/.ciss/cdi/log/4610_installation_security.log"
|
|
declare -ar ary_apparmor=( "apparmor" "apparmor-profiles" "apparmor-profiles-extra" "apparmor-utils" )
|
|
declare -ar ary_selinux=( "selinux-basics" "selinux-policy-default" "selinux-utils" "setools" "semodule-utils" "sepol-utils" \
|
|
"policycoreutils" "policycoreutils-python-utils" "checkpolicy" "python3-setools" )
|
|
declare -a ary_fw=("${ary_selinux[@]}")
|
|
|
|
chroot_logger "${TARGET}${var_logfile}"
|
|
|
|
[[ "${VAR_SEC_FW}" == "apparmor" ]] && ary_fw=("${ary_apparmor[@]}")
|
|
[[ "${VAR_SEC_FW}" == "selinux" ]] && ary_fw=("${ary_selinux[@]}")
|
|
|
|
chroot_script "${TARGET}" "
|
|
export INITRD=No
|
|
apt-get install -y --no-install-recommends --no-install-suggests ${ary_fw[*]} 2>&1 | tee -a ${var_logfile}
|
|
|
|
if [[ ${VAR_SEC_FW} == apparmor ]]; then
|
|
systemctl enable apparmor 2>&1 | tee -a ${var_logfile} || true
|
|
fi
|
|
"
|
|
|
|
if [[ "${VAR_SEC_FW}" == "selinux" ]]; then
|
|
|
|
mkdir -p "${TARGET}/etc/selinux" "${TARGET}/root/.ciss/cdi/backup/etc/selinux"
|
|
|
|
[[ -f "${TARGET}/etc/selinux/config" ]] && mv "${TARGET}/etc/selinux/config" "${TARGET}/root/.ciss/cdi/backup/etc/selinux"
|
|
|
|
insert_header "${TARGET}/etc/selinux/config"
|
|
insert_comments "${TARGET}/etc/selinux/config"
|
|
cat << 'EOF' >> "${TARGET}/etc/selinux/config"
|
|
# This file controls the state of SELinux on the system.
|
|
|
|
# SELINUX= can take one of these three values:
|
|
# enforcing : SELinux security policy is enforced.
|
|
# permissive: SELinux prints warnings instead of enforcing.
|
|
# disabled : SELinux policy is not loaded.
|
|
SELINUX=permissive
|
|
|
|
# SELINUXTYPE= can take one of these two values:
|
|
# default: equivalent to the old strict and targeted policies.
|
|
# mls : Multi-Level Security (for military and educational use).
|
|
# src : Custom policy built from source.
|
|
SELINUXTYPE=default
|
|
|
|
# SETLOCALDEFS= Check local definition changes
|
|
SETLOCALDEFS=0
|
|
|
|
# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf
|
|
EOF
|
|
|
|
### Trigger a full relabeling on the first boot of the target.
|
|
touch "${TARGET}/.autorelabel"
|
|
|
|
chroot_script "${TARGET}" "
|
|
semanage port -a -t ssh_port_t -p tcp ${VAR_SSH_PORT}
|
|
"
|
|
|
|
### Enable PAM SELinux modules in common-session configs.
|
|
sed -i '/^session.*required.*pam_selinux\.so/d' "${TARGET}/etc/pam.d/common-session"
|
|
sed -i '/^session.*required.*pam_selinux\.so/d' "${TARGET}/etc/pam.d/common-session-noninteractive"
|
|
|
|
cat << 'EOF' >> "${TARGET}/etc/pam.d/common-session"
|
|
session required pam_selinux.so close
|
|
session required pam_selinux.so open
|
|
EOF
|
|
|
|
cat << 'EOF' >> "${TARGET}/etc/pam.d/common-session-noninteractive"
|
|
session required pam_selinux.so close
|
|
session required pam_selinux.so open
|
|
EOF
|
|
|
|
fi
|
|
|
|
guard_dir && return 0
|
|
}
|
|
### Prevents accidental 'unset -f'.
|
|
# shellcheck disable=SC2034
|
|
readonly -f installation_security
|
|
# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh
|