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118 lines
4.4 KiB
Bash
118 lines
4.4 KiB
Bash
#!/bin/sh
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#
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# Copyright (c) 2018-2020, 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 mount TARGET host_path container_path [filesystem_type options dump pass_number]"
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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 [ $# -lt 2 ]; then
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usage
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elif [ $# -eq 2 ]; then
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_fstab="$@ nullfs ro 0 0"
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else
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_fstab="$@"
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fi
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## assign needed variables
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_hostpath=$(echo "${_fstab}" | awk '{print $1}')
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_jailpath=$(echo "${_fstab}" | awk '{print $2}')
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_type=$(echo "${_fstab}" | awk '{print $3}')
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_perms=$(echo "${_fstab}" | awk '{print $4}')
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_checks=$(echo "${_fstab}" | awk '{print $5" "$6}')
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## if any variables are empty, bail out
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if [ -z "${_hostpath}" ] || [ -z "${_jailpath}" ] || [ -z "${_type}" ] || [ -z "${_perms}" ] || [ -z "${_checks}" ]; then
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error_notify "FSTAB format not recognized."
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warn "Format: /host/path jail/path nullfs ro 0 0"
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warn "Read: ${_fstab}"
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exit 1
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fi
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## if host path doesn't exist or type is not "nullfs"
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if [ ! -d "${_hostpath}" ] || [ "${_type}" != "nullfs" ]; then
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error_notify "Detected invalid host path or incorrect mount type in FSTAB."
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warn "Format: /host/path jail/path nullfs ro 0 0"
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warn "Read: ${_fstab}"
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exit 1
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fi
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## if mount permissions are not "ro" or "rw"
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if [ "${_perms}" != "ro" ] && [ "${_perms}" != "rw" ]; then
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error_notify "Detected invalid mount permissions in FSTAB."
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warn "Format: /host/path jail/path nullfs ro 0 0"
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warn "Read: ${_fstab}"
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exit 1
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fi
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## if check & pass are not "0 0 - 1 1"; bail out
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if [ "${_checks}" != "0 0" ] && [ "${_checks}" != "1 0" ] && [ "${_checks}" != "0 1" ] && [ "${_checks}" != "1 1" ]; then
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error_notify "Detected invalid fstab options in FSTAB."
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warn "Format: /host/path jail/path nullfs ro 0 0"
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warn "Read: ${_fstab}"
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exit 1
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fi
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for _jail in ${JAILS}; do
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info "[${_jail}]:"
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## aggregate variables into FSTAB entry
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_jailpath="${bastille_jailsdir}/${_jail}/root/${_jailpath}"
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_fstab_entry="${_hostpath} ${_jailpath} ${_type} ${_perms} ${_checks}"
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## Create mount point if it does not exist. -- cwells
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if [ ! -d "${bastille_jailsdir}/${_jail}/root/${_jailpath}" ]; then
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if ! mkdir -p "${bastille_jailsdir}/${_jail}/root/${_jailpath}"; then
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error_exit "Failed to create mount point inside jail."
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fi
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fi
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## if entry doesn't exist, add; else show existing entry
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if ! egrep -q "[[:blank:]]${_jailpath}[[:blank:]]" "${bastille_jailsdir}/${_jail}/fstab" 2> /dev/null; then
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if ! echo "${_fstab_entry}" >> "${bastille_jailsdir}/${_jail}/fstab"; then
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error_exit "Failed to create fstab entry: ${_fstab_entry}"
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fi
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echo "Added: ${_fstab_entry}"
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else
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egrep "[[:blank:]]${_jailpath}[[:blank:]]" "${bastille_jailsdir}/${_jail}/fstab"
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fi
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mount -F "${bastille_jailsdir}/${_jail}/fstab" -a
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echo
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done
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