Mirrors/hackacad
2
0
Fork 0
mirror of https://github.com/hackacad/bastille.git synced 2025-12-12 17:59:58 +01:00
Code Issues Packages Projects Releases Wiki Activity
Files
cb2be2074e03b915c6baec84f84d40a37ea3abae
hackacad/usr/local/share/bastille/limits.sh
tschettervictor a190099450 deprecate parallel mode
2025-08-03 13:32:59 -06:00

303 lines
10 KiB
Bash
Raw Blame History

#!/bin/sh
#
# SPDX-License-Identifier: BSD-3-Clause
#
# Copyright (c) 2018-2025, Christer Edwards <christer.edwards@gmail.com>
# All rights reserved.
# Ressource limits added by Sven R github.com/hackacad
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice, this
# list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# * Neither the name of the copyright holder nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
. /usr/local/share/bastille/common.sh
usage() {
error_notify "Usage: bastille limits [option(s)] TARGET [add|remove|clear|reset|(list|show [active])|stats] OPTION [VALUE]"
cat << EOF
Example: bastille limits TARGET add memoryuse 1G
Example: bastille limits TARGET add cpu 0,1,2
Options:
-a | --auto Auto mode. Start/stop jail(s) if required.
-l | --log Enable logging for the specified rule (rctl only).
-x | --debug Enable debug mode.
EOF
exit 1
}
# Handle options.
AUTO=0
OPT_LOG=0
while [ "$#" -gt 0 ]; do
case "${1}" in
-h|--help|help)
usage
;;
-a|--auto)
AUTO=1
shift
;;
-l|--log)
OPT_LOG=1
shift
;;
-x|--debug)
enable_debug
shift
;;
-*)
for _opt in $(echo ${1} | sed 's/-//g' | fold -w1); do
case ${_opt} in
a) AUTO=1 ;;
l) OPT_LOG=1 ;;
x) enable_debug ;;
*) error_exit "[ERROR]: Unknown Option: \"${1}\"" ;;
esac
done
shift
;;
*)
break
;;
esac
done
if [ "$#" -lt 2 ] || [ "$#" -gt 4 ]; then
usage
fi
TARGET="${1}"
ACTION="${2}"
# Retain support for no action (will default to add)
if [ "${ACTION}" != "add" ] && [ "${ACTION}" != "remove" ] && [ "${ACTION}" != "clear" ] && [ "${ACTION}" != "list" ] && [ "${ACTION}" != "show" ] && [ "${ACTION}" != "reset" ] && [ "${ACTION}" != "stats" ]; then
ACTION="add"
shift 1
else
ACTION="${2}"
shift 2
fi
RACCT_ENABLE="$(sysctl -n kern.racct.enable)"
if [ "${RACCT_ENABLE}" != '1' ]; then
error_exit "[ERROR]: Racct not enabled. Append 'kern.racct.enable=1' to /boot/loader.conf and reboot"
fi
bastille_root_check
set_target "${TARGET}"
validate_cpus() {
local _cpus="${1}"
for _cpu in $(echo ${_cpus} | sed 's/,/ /g'); do
if ! cpuset -l ${_cpu} 2>/dev/null; then
error_notify "[ERROR]: CPU is not available: ${_cpu}"
return 1
fi
done
}
add_cpuset() {
local _jail="${1}"
local _cpus="${2}"
local _cpuset_rule="$(echo ${_cpus} | sed 's/ /,/g')"
# Persist cpuset value
echo "${_cpuset_rule}" >> "${bastille_jailsdir}/${_jail}/cpuset.conf"
echo -e "[CPU LIMITS]: ${OPTION} ${VALUE}"
# Restart jail to apply cpuset
bastille restart ${_jail}
}
for _jail in ${JAILS}; do
check_target_is_running "${_jail}" || if [ "${AUTO}" -eq 1 ]; then
bastille start "${_jail}"
else
info "\n[${_jail}]:"
error_notify "Jail is not running."
error_continue "Use [-a|--auto] to auto-start the jail."
fi
info "\n[${_jail}]:"
case "${ACTION}" in
add)
OPTION="${1}"
VALUE="${2}"
# Limit cpus for jail
if [ "${OPTION}" = "cpu" ] || [ "${OPTION}" = "cpus" ] || [ "${OPTION}" = "cpuset" ]; then
validate_cpus "${VALUE}" || continue
add_cpuset "${_jail}" "${VALUE}"
else
# Add rctl rule to rctl.conf
_rctl_rule="jail:${_jail}:${OPTION}:deny=${VALUE}/jail"
_rctl_rule_log="jail:${_jail}:${OPTION}:log=${VALUE}/jail"
# Check whether the entry already exists and, if so, update it. -- cwells
if grep -qs "jail:${_jail}:${OPTION}:deny" "${bastille_jailsdir}/${_jail}/rctl.conf"; then
_escaped_option=$(echo "${OPTION}" | sed 's/\//\\\//g')
_escaped_rctl_rule=$(echo "${_rctl_rule}" | sed 's/\//\\\//g')
_escaped_rctl_rule_log=$(echo "${_rctl_rule_log}" | sed 's/\//\\\//g')
sed -i '' -E "s/jail:${_jail}:${_escaped_option}:deny.+/${_escaped_rctl_rule}/" "${bastille_jailsdir}/${_jail}/rctl.conf"
if [ "${OPT_LOG}" -eq 1 ]; then
sed -i '' -E "s/jail:${_jail}:${_escaped_option}:log.+/${_escaped_rctl_rule_log}/" "${bastille_jailsdir}/${_jail}/rctl.conf"
fi
else # Just append the entry. -- cwells
echo "${_rctl_rule}" >> "${bastille_jailsdir}/${_jail}/rctl.conf"
if [ "${OPT_LOG}" -eq 1 ]; then
echo "${_rctl_rule_log}" >> "${bastille_jailsdir}/${_jail}/rctl.conf"
fi
fi
if [ "${OPT_LOG}" -eq 1 ]; then
echo -e "[LOGGING]: ${OPTION} ${VALUE}"
rctl -a "${_rctl_rule}" "${_rctl_rule_log}"
else
echo -e "${OPTION} ${VALUE}"
rctl -a "${_rctl_rule}"
fi
fi
;;
remove)
OPTION="${1}"
if [ "${OPTION}" = "cpu" ] || [ "${OPTION}" = "cpus" ] || [ "${OPTION}" = "cpuset" ]; then
# Remove cpuset.conf
if [ -s "${bastille_jailsdir}/${_jail}/cpuset.conf" ]; then
rm -f "${bastille_jailsdir}/${_jail}/cpuset.conf"
echo "cpuset.conf removed."
else
error_continue "[ERROR]: cpuset.conf not found."
fi
# Restart jail to clear cpuset
bastille restart ${_jail}
else
if [ -s "${bastille_jailsdir}/${_jail}/rctl.conf" ]; then
# Remove rule from rctl.conf
if grep -qs "jail:${_jail}:${OPTION}:deny" "${bastille_jailsdir}/${_jail}/rctl.conf"; then
_rctl_rule="$(grep "jail:${_jail}:${OPTION}:deny" "${bastille_jailsdir}/${_jail}/rctl.conf")"
_rctl_rule_log="$(grep "jail:${_jail}:${OPTION}:log" "${bastille_jailsdir}/${_jail}/rctl.conf")"
rctl -r "${_rctl_rule}" "${_rctl_rule_log}" 2>/dev/null
sed -i '' "/.*${_jail}:${OPTION}.*/d" "${bastille_jailsdir}/${_jail}/rctl.conf"
fi
fi
fi
;;
clear)
# Remove rctl limits (rctl only)
if [ -s "${bastille_jailsdir}/${_jail}/rctl.conf" ]; then
while read _limits; do
rctl -r "${_limits}" 2>/dev/null
done < "${bastille_jailsdir}/${_jail}/rctl.conf"
echo "RCTL limits cleared."
fi
;;
list|show)
# Show rctl limits
if [ -s "${bastille_jailsdir}/${_jail}/rctl.conf" ]; then
echo "-------------"
echo "[RCTL Limits]"
if [ "${1}" = "active" ]; then
rctl jail:${_jail} 2>/dev/null
else
cat "${bastille_jailsdir}/${_jail}/rctl.conf"
fi
fi
# Show cpuset limits
if [ -s "${bastille_jailsdir}/${_jail}/cpuset.conf" ]; then
echo "-------------"
echo "[CPU Limits]"
if [ "${1}" = "active" ]; then
cpuset -g -j ${_jail} | head -1 2>/dev/null
else
cat "${bastille_jailsdir}/${_jail}/cpuset.conf"
fi
fi
;;
stats)
# Show statistics (rctl only)
if [ -s "${bastille_jailsdir}/${_jail}/rctl.conf" ]; then
rctl -hu jail:${_jail} 2>/dev/null
fi
;;
reset)
# Remove active limits
if [ -s "${bastille_jailsdir}/${_jail}/rctl.conf" ]; then
while read _limits; do
rctl -r "${_limits}" 2>/dev/null
done < "${bastille_jailsdir}/${_jail}/rctl.conf"
echo "RCTL limits cleared."
fi
# Remove rctl.conf
if [ -s "${bastille_jailsdir}/${_jail}/rctl.conf" ]; then
rm -f "${bastille_jailsdir}/${_jail}/rctl.conf"
echo "rctl.conf removed."
else
error_continue "[ERROR]: rctl.conf not found."
fi
# Remove cpuset.conf
if [ -s "${bastille_jailsdir}/${_jail}/cpuset.conf" ]; then
rm -f "${bastille_jailsdir}/${_jail}/cpuset.conf"
echo "cpuset.conf removed."
else
error_continue "[ERROR]: cpuset.conf not found."
fi
# Restart jail to clear cpuset
bastille restart ${_jail}
;;
esac
done
Reference in New Issue View Git Blame Copy Permalink