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https://github.com/hackacad/bastille.git
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clone: update "update_jail_conf_vnet" function for optional static MAC
This commit is contained in:
tschettervictor
GitHub
@@ -105,51 +105,80 @@ update_jailconf() {
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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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# Determine number of interfaces and define a uniq_epair
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local _if_list="$(grep -Eo 'epair[0-9]+|bastille[0-9]+' ${JAIL_CONFIG} | sort -u)"
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for _if in ${_if_list}; do
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local _epair_if_count="$(grep -Eo 'epair[0-9]+' ${bastille_jailsdir}/*/jail.conf | sort -u | wc -l | awk '{print $1}')"
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local _bastille_if_count="$(grep -Eo 'bastille[0-9]+' ${bastille_jailsdir}/*/jail.conf | sort -u | wc -l | awk '{print $1}')"
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local epair_num_range=$((_epair_if_count + 1))
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local bastille_num_range=$((_bastille_if_count + 1))
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if echo ${_if} | grep -Eoq 'epair[0-9]+'; then
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# Update bridged VNET config
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for _num in $(seq 0 "${epair_num_range}"); do
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if ! grep -oq "epair${_num}" ${bastille_jailsdir}/*/jail.conf; then
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# Update jail.conf epair name
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local uniq_epair_bridge="${_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 _if_epaira="${_if}a"
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local _if_epairb="${_if}b"
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local _if_vnet="$(grep ${_if_epairb} "${bastille_jail_rc_conf}" | grep -Eo -m 1 "vnet[0-9]+")"
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sed -i '' "s|${_if}|epair${uniq_epair_bridge}|g" "${JAIL_CONFIG}"
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# If jail had a static MAC, generate one for clone
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if grep -oq ether ${JAIL_CONFIG}; then
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local macaddr_prefix="$(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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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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local external_interface="$(grep "epair${uniq_epair_bridge}" ${JAIL_CONFIG} | grep -o '[^ ]* addm' | awk '{print $1}')"
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generate_static_mac "${NEWNAME}" "${external_interface}"
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sed -i '' "s|epair${uniq_epair_bridge}a ether.*:.*:.*:.*:.*:.*a\";|epair${uniq_epair}a ether ${macaddr}a\";|" "${JAIL_CONFIG}"
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sed -i '' "s|epair${uniq_epair_bridge}b ether.*:.*:.*:.*:.*:.*b\";|epair${uniq_epair}b ether ${macaddr}b\";|" "${JAIL_CONFIG}"
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fi
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sed -i '' "s|vnet host interface for Bastille jail ${TARGET}|vnet host interface for Bastille jail ${NEWNAME}|g" "${JAIL_CONFIG}"
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# Update /etc/rc.conf
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sed -i '' "s|${_if_epairb}_name|epair${uniq_epair_bridge}b_name|" "${bastille_jail_rc_conf}"
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if grep "vnet0" "${bastille_jail_rc_conf}" | grep -q "epair${uniq_epair_bridge}b_name"; then
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if [ "${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 ${IP}"
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fi
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else
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sysrc -f "${bastille_jail_rc_conf}" ifconfig_${_if_vnet}="SYNCDHCP"
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fi
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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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break
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fi
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fi
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done
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elif echo ${_if} | grep -Eoq 'bastille[0-9]+'; then
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# Update VNET config
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for _num in $(seq 0 "${bastille_num_range}"); do
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if ! grep -oq "bastille${_num}" ${bastille_jailsdir}/*/jail.conf; then
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# Update jail.conf epair name
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local uniq_epair="bastille${_num}"
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local _if_vnet="$(grep ${_if} "${bastille_jail_rc_conf}" | grep -Eo -m 1 "vnet[0-9]+")"
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sed -i '' "s|${_if}|${uniq_epair}|g" "${JAIL_CONFIG}"
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# If jail had a static MAC, generate one for clone
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if grep -oq ether ${JAIL_CONFIG}; then
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local external_interface="$(grep ${uniq_epair} ${JAIL_CONFIG} | grep -o 'addm.*' | awk '{print $3}' | sed 's/["|;]//g')"
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generate_static_mac "${NEWNAME}" "${external_interface}"
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sed -i '' "s|${uniq_epair} ether.*:.*:.*:.*:.*:.*a\";|${uniq_epair} ether ${macaddr}a\";|" "${JAIL_CONFIG}"
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sed -i '' "s|${uniq_epair} ether.*:.*:.*:.*:.*:.*b\";|${uniq_epair} ether ${macaddr}b\";|" "${JAIL_CONFIG}"
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fi
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sed -i '' "s|vnet host interface for Bastille jail ${TARGET}|vnet host interface for Bastille jail ${NEWNAME}|g" "${JAIL_CONFIG}"
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# Update /etc/rc.conf
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sed -i '' "s|ifconfig_e0b_${_if}_name|ifconfig_e0b_${uniq_epair}_name|" "${bastille_jail_rc_conf}"
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if grep "vnet0" "${bastille_jail_rc_conf}" | grep -q ${uniq_epair}; then
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if [ "${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 ${IP} "
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fi
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else
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sysrc -f "${bastille_jail_rc_conf}" ifconfig_${_if_vnet}="SYNCDHCP"
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fi
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break
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fi
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done
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fi
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done
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# Rename interface to new uniq_epair
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sed -i '' "s|ifconfig_e0b_bastille.*_name|ifconfig_e0b_${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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