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.
218 lines
9.2 KiB
Bash
218 lines
9.2 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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. /usr/local/share/bastille/common.sh
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. /usr/local/etc/bastille/bastille.conf
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usage() {
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error_exit "Usage: bastille clone TARGET NEW_NAME IPADDRESS"
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}
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# Handle special-case commands first
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case "$1" in
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help|-h|--help)
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usage
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;;
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esac
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if [ $# -ne 2 ]; then
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usage
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fi
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bastille_root_check
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NEWNAME="${1}"
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IP="${2}"
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validate_ip() {
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IPX_ADDR="ip4.addr"
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IP6_MODE="disable"
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ip6=$(echo "${IP}" | grep -E '^(([a-fA-F0-9:]+$)|([a-fA-F0-9:]+\/[0-9]{1,3}$))')
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if [ -n "${ip6}" ]; then
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info "Valid: (${ip6})."
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IPX_ADDR="ip6.addr"
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# shellcheck disable=SC2034
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IP6_MODE="new"
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else
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local IFS
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if echo "${IP}" | grep -Eq '^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])(\/([0-9]|[1-2][0-9]|3[0-2]))?$'; then
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TEST_IP=$(echo "${IP}" | cut -d / -f1)
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IFS=.
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set ${TEST_IP}
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for quad in 1 2 3 4; do
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if eval [ \$$quad -gt 255 ]; then
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error_exit "Invalid: (${TEST_IP})"
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fi
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done
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if ifconfig | grep -qwF "${TEST_IP}"; then
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warn "Warning: IP address already in use (${TEST_IP})."
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else
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info "Valid: (${IP})."
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fi
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else
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error_exit "Invalid: (${IP})."
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fi
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fi
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}
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update_jailconf() {
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# Update jail.conf
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JAIL_CONFIG="${bastille_jailsdir}/${NEWNAME}/jail.conf"
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if [ -f "${JAIL_CONFIG}" ]; then
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if ! grep -qw "path = ${bastille_jailsdir}/${NEWNAME}/root;" "${JAIL_CONFIG}"; then
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sed -i '' "s|host.hostname = ${TARGET};|host.hostname = ${NEWNAME};|" "${JAIL_CONFIG}"
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sed -i '' "s|exec.consolelog = .*;|exec.consolelog = ${bastille_logsdir}/${NEWNAME}_console.log;|" "${JAIL_CONFIG}"
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sed -i '' "s|path = .*;|path = ${bastille_jailsdir}/${NEWNAME}/root;|" "${JAIL_CONFIG}"
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sed -i '' "s|mount.fstab = .*;|mount.fstab = ${bastille_jailsdir}/${NEWNAME}/fstab;|" "${JAIL_CONFIG}"
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sed -i '' "s|${TARGET} {|${NEWNAME} {|" "${JAIL_CONFIG}"
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sed -i '' "s|${IPX_ADDR} = .*;|${IPX_ADDR} = ${IP};|" "${JAIL_CONFIG}"
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fi
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fi
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if grep -qw "vnet;" "${JAIL_CONFIG}"; then
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update_jailconf_vnet
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fi
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}
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update_jailconf_vnet() {
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bastille_jail_rc_conf="${bastille_jailsdir}/${NEWNAME}/root/etc/rc.conf"
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# Determine number of containers and define an uniq_epair
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local list_jails_num="$(bastille list jails | wc -l | awk '{print $1}')"
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local num_range="$(expr "${list_jails_num}" + 1)"
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jail_list=$(bastille list jail)
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for _num in $(seq 0 "${num_range}"); do
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if [ -n "${jail_list}" ]; then
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if ! grep -q "e0b_bastille${_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="${_num}"
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# since we don't have access to the external_interface variable, we cat the jail.conf file to retrieve the mac prefix
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# we also do not use the main generate_static_mac function here
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local macaddr_prefix="$(cat ${JAIL_CONFIG} | grep -m 1 ether | grep -oE '([0-9a-f]{2}(:[0-9a-f]{2}){5})' | awk -F: '{print $1":"$2":"$3}')"
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local macaddr_suffix="$(echo -n ${NEWNAME} | 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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local macaddr="${macaddr_prefix}:${macaddr_suffix}"
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# Update the exec.* with uniq_epair when cloning jails.
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# for VNET jails
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sed -i '' "s|bastille\([0-9]\{1,\}\)|${uniq_epair}|g" "${JAIL_CONFIG}"
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sed -i '' "s|e\([0-9]\{1,\}\)a_${NEWNAME}|e${uniq_epair_bridge}a_${NEWNAME}|g" "${JAIL_CONFIG}"
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sed -i '' "s|e\([0-9]\{1,\}\)b_${NEWNAME}|e${uniq_epair_bridge}b_${NEWNAME}|g" "${JAIL_CONFIG}"
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sed -i '' "s|epair\([0-9]\{1,\}\)|epair${uniq_epair_bridge}|g" "${JAIL_CONFIG}"
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sed -i '' "s|exec.prestart += \"ifconfig e0a_bastille\([0-9]\{1,\}\).*description.*|exec.prestart += \"ifconfig e0a_${uniq_epair} description \\\\\"vnet host interface for Bastille jail ${NEWNAME}\\\\\"\";|" "${JAIL_CONFIG}"
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sed -i '' "s|ether.*:.*:.*:.*:.*:.*a\";|ether ${macaddr}a\";|" "${JAIL_CONFIG}"
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sed -i '' "s|ether.*:.*:.*:.*:.*:.*b\";|ether ${macaddr}b\";|" "${JAIL_CONFIG}"
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break
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fi
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fi
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fi
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done
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# Rename interface to new uniq_epair
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sed -i '' "s|ifconfig_e0b_bastille.*_name|ifconfig_e0b_${uniq_epair}_name|" "${bastille_jail_rc_conf}"
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sed -i '' "s|ifconfig_e.*b_${TARGET}_name|ifconfig_e${uniq_epair_bridge}b_${NEWNAME}_name|" "${bastille_jail_rc_conf}"
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# If 0.0.0.0 set DHCP, else set static IP address
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if [ "${IP}" = "0.0.0.0" ]; then
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sysrc -f "${bastille_jail_rc_conf}" ifconfig_vnet0="SYNCDHCP"
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else
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sysrc -f "${bastille_jail_rc_conf}" ifconfig_vnet0="inet ${IP}"
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fi
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}
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update_fstab() {
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# Update fstab to use the new name
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FSTAB_CONFIG="${bastille_jailsdir}/${NEWNAME}/fstab"
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if [ -f "${FSTAB_CONFIG}" ]; then
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# Update additional fstab paths with new jail path
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sed -i '' "s|${bastille_jailsdir}/${TARGET}/root/|${bastille_jailsdir}/${NEWNAME}/root/|" "${FSTAB_CONFIG}"
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fi
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}
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clone_jail() {
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# Attempt container clone
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info "Attempting to clone '${TARGET}' to ${NEWNAME}..."
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if ! [ -d "${bastille_jailsdir}/${NEWNAME}" ]; then
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if checkyesno bastille_zfs_enable; then
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if [ -n "${bastille_zfs_zpool}" ]; then
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# Replicate the existing container
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DATE=$(date +%F-%H%M%S)
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zfs snapshot -r "${bastille_zfs_zpool}/${bastille_zfs_prefix}/jails/${TARGET}@bastille_clone_${DATE}"
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zfs send -R "${bastille_zfs_zpool}/${bastille_zfs_prefix}/jails/${TARGET}@bastille_clone_${DATE}" | zfs recv "${bastille_zfs_zpool}/${bastille_zfs_prefix}/jails/${NEWNAME}"
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# Cleanup source temporary snapshots
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zfs destroy "${bastille_zfs_zpool}/${bastille_zfs_prefix}/jails/${TARGET}/root@bastille_clone_${DATE}"
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zfs destroy "${bastille_zfs_zpool}/${bastille_zfs_prefix}/jails/${TARGET}@bastille_clone_${DATE}"
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# Cleanup target temporary snapshots
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zfs destroy "${bastille_zfs_zpool}/${bastille_zfs_prefix}/jails/${NEWNAME}/root@bastille_clone_${DATE}"
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zfs destroy "${bastille_zfs_zpool}/${bastille_zfs_prefix}/jails/${NEWNAME}@bastille_clone_${DATE}"
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fi
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else
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# Just clone the jail directory
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# Check if container is running
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if [ -n "$(/usr/sbin/jls name | awk "/^${TARGET}$/")" ]; then
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error_exit "${TARGET} is running. See 'bastille stop ${TARGET}'."
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fi
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# Perform container file copy(archive mode)
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cp -a "${bastille_jailsdir}/${TARGET}" "${bastille_jailsdir}/${NEWNAME}"
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fi
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else
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error_exit "${NEWNAME} already exists."
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fi
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# Generate jail configuration files
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update_jailconf
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update_fstab
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# Display the exist status
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if [ "$?" -ne 0 ]; then
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error_exit "An error has occurred while attempting to clone '${TARGET}'."
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else
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info "Cloned '${TARGET}' to '${NEWNAME}' successfully."
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fi
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}
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## don't allow for dots(.) in container names
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if echo "${NEWNAME}" | grep -q "[.]"; then
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error_exit "Container names may not contain a dot(.)!"
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fi
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## check if ip address is valid
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if [ -n "${IP}" ]; then
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validate_ip
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else
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usage
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fi
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clone_jail
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