mirror of
https://github.com/hackacad/bastille.git
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8b0411c111
Added SPDX-License-Identifier to all scripts for better license clarity and compliance. Updated the copyright years from 2024 to 2025 in various files to reflect the current maintenance period.
236 lines
7.6 KiB
Bash
236 lines
7.6 KiB
Bash
#!/bin/sh
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#
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# SPDX-License-Identifier: BSD-3-Clause
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#
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# Copyright (c) 2018-2025, Christer Edwards <christer.edwards@gmail.com>
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright notice, this
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# list of conditions and the following disclaimer.
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#
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# * Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# * Neither the name of the copyright holder nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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# Source config file
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. /usr/local/etc/bastille/bastille.conf
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COLOR_RED=
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COLOR_GREEN=
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COLOR_YELLOW=
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COLOR_RESET=
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bastille_root_check() {
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if [ "$(id -u)" -ne 0 ]; then
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## permission denied
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error_notify "Bastille: Permission Denied"
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error_exit "root / sudo / doas required"
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fi
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}
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enable_color() {
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. /usr/local/share/bastille/colors.pre.sh
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}
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# If "NO_COLOR" environment variable is present, or we aren't speaking to a
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# tty, disable output colors.
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if [ -z "${NO_COLOR}" ] && [ -t 1 ]; then
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enable_color
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fi
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# Error/Info functions
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error_notify() {
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echo -e "${COLOR_RED}$*${COLOR_RESET}" 1>&2
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}
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error_continue() {
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error_notify "$@"
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# Disabling this shellcheck as we only ever call it inside of a loop
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# shellcheck disable=SC2104
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continue
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}
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# Notify message on error and exit
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error_exit() {
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error_notify "$@"
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exit 1
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}
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info() {
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echo -e "${COLOR_GREEN}$*${COLOR_RESET}"
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}
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warn() {
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echo -e "${COLOR_YELLOW}$*${COLOR_RESET}"
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}
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check_target_exists() {
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local _TARGET="${1}"
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if [ ! -d "${bastille_jailsdir}"/"${_TARGET}" ]; then
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return 1
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else
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return 0
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fi
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}
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check_target_is_running() {
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local _TARGET="${1}"
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if [ ! "$(/usr/sbin/jls name | awk "/^${_TARGET}$/")" ]; then
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return 1
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else
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return 0
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fi
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}
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check_target_is_stopped() {
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local _TARGET="${1}"
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if [ "$(/usr/sbin/jls name | awk "/^${_TARGET}$/")" ]; then
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return 1
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else
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return 0
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fi
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}
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generate_static_mac() {
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local jail_name="${1}"
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local external_interface="${2}"
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local external_interface_mac="$(ifconfig ${external_interface} | grep ether | awk '{print $2}' | sed 's#:##g')"
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local macaddr_prefix="$(echo -n "${external_interface_mac}" | sha256 | cut -b -6 | sed 's/\([0-9a-fA-F][0-9a-fA-F]\)\([0-9a-fA-F][0-9a-fA-F]\)\([0-9a-fA-F]\)/\1:\2:\3/')"
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local macaddr_suffix="$(echo -n "${jail_name}" | sha256 | cut -b -5 | sed 's/\([0-9a-fA-F][0-9a-fA-F]\)\([0-9a-fA-F][0-9a-fA-F]\)\([0-9a-fA-F]\)/\1:\2:\3/')"
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if [ -z "${macaddr_prefix}" ] || [ -z "${macaddr_suffix}" ]; then
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error_notify "Failed to generate MAC address."
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fi
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macaddr="${macaddr_prefix}:${macaddr_suffix}"
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export macaddr
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}
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generate_vnet_jail_netblock() {
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local jail_name="$1"
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local use_unique_bridge="$2"
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local external_interface="$3"
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generate_static_mac "${jail_name}" "${external_interface}"
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## determine number of containers + 1
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## iterate num and grep all jail configs
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## define uniq_epair
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local jail_list="$(bastille list jails)"
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if [ -n "${jail_list}" ]; then
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local list_jails_num="$(echo "${jail_list}" | wc -l | awk '{print $1}')"
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local num_range=$((list_jails_num + 1))
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for _num in $(seq 0 "${num_range}"); do
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if ! grep -q "e[0-9]b_bastille${_num}" "${bastille_jailsdir}"/*/jail.conf; then
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if ! grep -q "epair${_num}" "${bastille_jailsdir}"/*/jail.conf; then
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local uniq_epair="bastille${_num}"
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local uniq_epair_bridge="${_num}"
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break
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fi
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fi
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done
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else
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local uniq_epair="bastille0"
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local uniq_epair_bridge="0"
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fi
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if [ -n "${use_unique_bridge}" ]; then
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## generate bridge config
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cat <<-EOF
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vnet;
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vnet.interface = e${uniq_epair_bridge}b_${jail_name};
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exec.prestart += "ifconfig epair${uniq_epair_bridge} create";
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exec.prestart += "ifconfig ${external_interface} addm epair${uniq_epair_bridge}a";
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exec.prestart += "ifconfig epair${uniq_epair_bridge}a up name e${uniq_epair_bridge}a_${jail_name}";
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exec.prestart += "ifconfig epair${uniq_epair_bridge}b up name e${uniq_epair_bridge}b_${jail_name}";
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exec.prestart += "ifconfig e${uniq_epair_bridge}a_${jail_name} ether ${macaddr}a";
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exec.prestart += "ifconfig e${uniq_epair_bridge}b_${jail_name} ether ${macaddr}b";
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exec.poststop += "ifconfig ${external_interface} deletem e${uniq_epair_bridge}a_${jail_name}";
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exec.poststop += "ifconfig e${uniq_epair_bridge}a_${jail_name} destroy";
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EOF
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else
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## generate config
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cat <<-EOF
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vnet;
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vnet.interface = e0b_${uniq_epair};
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exec.prestart += "jib addm ${uniq_epair} ${external_interface}";
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exec.prestart += "ifconfig e0a_${uniq_epair} ether ${macaddr}a";
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exec.prestart += "ifconfig e0b_${uniq_epair} ether ${macaddr}b";
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exec.prestart += "ifconfig e0a_${uniq_epair} description \"vnet host interface for Bastille jail ${jail_name}\"";
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exec.poststop += "jib destroy ${uniq_epair}";
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EOF
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fi
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}
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set_target() {
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local _TARGET="${1}"
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if [ "${_TARGET}" = ALL ] || [ "${_TARGET}" = all ]; then
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target_all_jails
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else
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check_target_exists "${_TARGET}" || error_exit "Jail not found \"${_TARGET}\""
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JAILS="${_TARGET}"
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TARGET="${_TARGET}"
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export JAILS
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export TARGET
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fi
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}
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set_target_single() {
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local _TARGET="${1}"
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if [ "${_TARGET}" = ALL ] || [ "${_TARGET}" = all ]; then
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error_exit "[all|ALL] not supported with this command."
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else
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check_target_exists "${_TARGET}" || error_exit "Jail not found \"${_TARGET}\""
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JAILS="${_TARGET}"
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TARGET="${_TARGET}"
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export JAILS
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export TARGET
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fi
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}
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target_all_jails() {
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local _JAILS="$(bastille list jails)"
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JAILS=""
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for _jail in ${_JAILS}; do
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if [ -d "${bastille_jailsdir}/${_jail}" ]; then
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JAILS="${JAILS} ${_jail}"
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fi
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done
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export JAILS
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}
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checkyesno() {
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## copied from /etc/rc.subr -- cedwards (20231125)
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## issue #368 (lowercase values should be parsed)
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## now used for all bastille_zfs_enable=YES|NO tests
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## example: if checkyesno bastille_zfs_enable; then ...
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## returns 0 for enabled; returns 1 for disabled
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eval _value=\$${1}
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case $_value in
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[Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1)
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return 0
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;;
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[Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|[Oo][Ff][Ff]|0)
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return 1
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;;
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*)
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warn "\$${1} is not set properly - see rc.conf(5)."
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return 1
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;;
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esac
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}
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