mirror of
https://github.com/hackacad/bastille.git
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f8f508f6f6
In ed50e3fa04 _jailpath was updated to include the full path on the host.
The test and if required mkdir were then done with the jail’s root pirectory perpended to that full path.
119 lines
4.4 KiB
Bash
119 lines
4.4 KiB
Bash
#!/bin/sh
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#
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# Copyright (c) 2018-2021, 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} ${_checks}"
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## Create mount point if it does not exist. -- cwells
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if [ ! -d "${_jailpath}" ]; then
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if ! mkdir -p "${_jailpath}"; then
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error_exit "Failed to create mount point inside jail."
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fi
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fi
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## if entry doesn't exist, add; else show existing entry
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if ! egrep -q "[[:blank:]]${_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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warn "Mountpoint already present in ${bastille_jailsdir}/${_jail}/fstab"
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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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