| #!/bin/bash |
| # Copyright (C) 2000-2009, Parallels, Inc. All rights reserved. |
| # |
| # This program is free software; you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as published by |
| # the Free Software Foundation; either version 2 of the License, or |
| # (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program; if not, write to the Free Software |
| # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| # |
| # |
| # Adds IP address(es) in a container running Red Hat-like distro. |
| |
| VENET_DEV=venet0 |
| VENET_DEV_CFG=ifcfg-$VENET_DEV |
| IFCFG_DIR=/etc/sysconfig/network-scripts |
| IFCFG=${IFCFG_DIR}/ifcfg-${VENET_DEV} |
| NETFILE=/etc/sysconfig/network |
| HOSTFILE=/etc/hosts |
| NETWORKRESTART= |
| |
| function fix_ifup() |
| { |
| file="/sbin/ifup" |
| |
| [ -f "${file}" ] || return 0 |
| [ "x${VE_STATE}" != "xstarting" ] && return 0 |
| |
| if grep -q 'if \[ "\${DEVICE}" = "lo" \]; then' ${file} 2>/dev/null |
| then |
| ${CP} ${file} ${file}.$$ || return 1 |
| /bin/sed -e 's/if \[ "\${DEVICE}" = "lo" \]; then/if \[ "${IPADDR}" = "127.0.0.1" \]; then/g' < ${file} > ${file}.$$ && |
| mv -f ${file}.$$ ${file} |
| rm -f ${file}.$$ 2>/dev/null |
| fi |
| } |
| |
| function setup_network() |
| { |
| # Set up venet0 main interface as 127.0.0.1 |
| mkdir -p ${IFCFG_DIR} |
| echo "DEVICE=${VENET_DEV} |
| BOOTPROTO=static |
| ONBOOT=yes |
| IPADDR=127.0.0.1 |
| NETMASK=255.255.255.255 |
| BROADCAST=0.0.0.0" > $IFCFG || error "Can't write to file $IFCFG" $VZ_FS_NO_DISK_SPACE |
| |
| # Set /etc/sysconfig/network |
| put_param $NETFILE NETWORKING yes |
| # Set default route to venet0 |
| put_param $NETFILE GATEWAYDEV ${VENET_DEV} |
| # Remove old (obsoleted) fake route |
| del_param $NETFILE GATEWAY |
| # setup ipv6 |
| setup6_network |
| |
| # Set up /etc/hosts |
| if [ ! -f ${HOSTFILE} ]; then |
| echo "127.0.0.1 localhost.localdomain localhost" > $HOSTFILE |
| fi |
| fix_ifup |
| } |
| |
| function setup6_network() |
| { |
| [ "${IPV6}" != "yes" ] && return 0 |
| |
| if ! grep -q 'IPV6INIT="yes"' ${IFCFG}; then |
| put_param ${IFCFG} IPV6INIT yes |
| fi |
| if ! grep -q 'NETWORKING_IPV6="yes"' ${NETFILE}; then |
| put_param ${NETFILE} NETWORKING_IPV6 yes |
| put_param ${NETFILE} IPV6_DEFAULTDEV ${VENET_DEV} |
| NETWORKRESTART=yes |
| fi |
| } |
| |
| function create_config() |
| { |
| local ip=$1 |
| local ifnum=$2 |
| local file=${IFCFG_DIR}/bak/${VENET_DEV_CFG}:${ifnum} |
| |
| echo "DEVICE=${VENET_DEV}:${ifnum} |
| ONBOOT=yes |
| IPADDR=${ip} |
| NETMASK=255.255.255.255" > $file || |
| error "Can't write to file $file" ${VZ_FS_NO_DISK_SPACE} |
| } |
| |
| function add_ip6() |
| { |
| [ "${IPV6}" != "yes" ] && return |
| if ! grep -qw "$1" ${IFCFG} 2>/dev/null; then |
| setup6_network |
| add_param ${IFCFG} IPV6ADDR_SECONDARIES "$1/128" |
| ifconfig ${VENET_DEV} add "$1/128" |
| fi |
| } |
| |
| function get_all_aliasid() |
| { |
| IFNUM=-1 |
| |
| cd ${IFCFG_DIR} || return 1 |
| IFNUMLIST=`ls -1 bak/${VENET_DEV_CFG}:* 2>/dev/null | |
| sed "s/.*${VENET_DEV_CFG}://"` |
| } |
| |
| function get_aliasid_by_ip() |
| { |
| local ip=$1 |
| local idlist |
| |
| cd ${IFCFG_DIR} || return 1 |
| IFNUM=`grep -l "IPADDR=${ip}$" ${VENET_DEV_CFG}:* | head -n 1 | |
| sed -e 's/.*:\([0-9]*\)$/\1/'` |
| } |
| |
| function get_free_aliasid() |
| { |
| local found= |
| |
| [ -z "${IFNUMLIST}" ] && get_all_aliasid |
| while test -z ${found}; do |
| let IFNUM=IFNUM+1 |
| echo "${IFNUMLIST}" | grep -q -E "^${IFNUM}$" 2>/dev/null || |
| found=1 |
| done |
| } |
| |
| function backup_configs() |
| { |
| local delall=$1 |
| |
| rm -rf ${IFCFG_DIR}/bak/ >/dev/null 2>&1 |
| mkdir -p ${IFCFG_DIR}/bak |
| [ -n "${delall}" ] && return 0 |
| |
| cd ${IFCFG_DIR} || return 1 |
| if ls ${VENET_DEV_CFG}:* > /dev/null 2>&1; then |
| ${CP} ${VENET_DEV_CFG}:* ${IFCFG_DIR}/bak/ || |
| error "Unable to backup interface config files" ${VZ_FS_NO_DISK_SPACE} |
| fi |
| } |
| |
| function move_configs() |
| { |
| cd ${IFCFG_DIR} || return 1 |
| rm -rf ${VENET_DEV_CFG}:* |
| mv -f bak/* ${IFCFG_DIR}/ >/dev/null 2>&1 |
| rm -rf ${IFCFG_DIR}/bak |
| } |
| |
| function add_ip() |
| { |
| local ip |
| local new_ips |
| local if_restart= |
| |
| # In case we are starting CT |
| if [ "x${VE_STATE}" = "xstarting" ]; then |
| # Remove all VENET config files |
| rm -f ${IFCFG} ${IFCFG}:* >/dev/null 2>&1 |
| if [ -z "${IP_ADDR}" ]; then |
| # Just enable networking |
| put_param $NETFILE NETWORKING yes |
| return 0 |
| fi |
| fi |
| if [ ! -f "${IFCFG}" ]; then |
| setup_network |
| if_restart=1 |
| fi |
| backup_configs ${IPDELALL} |
| new_ips="${IP_ADDR}" |
| if [ "x${IPDELALL}" = "xyes" ]; then |
| new_ips= |
| for ip in ${IP_ADDR}; do |
| get_aliasid_by_ip "${ip}" |
| if [ -n "${IFNUM}" ]; then |
| # ip already exists just create it in bak |
| create_config "${ip}" "${IFNUM}" |
| else |
| new_ips="${new_ips} ${ip}" |
| fi |
| done |
| fi |
| for ip in ${new_ips}; do |
| if [ "${ip#*:}" = "${ip}" ]; then |
| get_free_aliasid |
| create_config "${ip}" "${IFNUM}" |
| else |
| if [ "x${IPDELALL}" = "xyes" ]; then |
| del_param ${IFCFG} IPV6ADDR_SECONDARIES "" |
| fi |
| add_ip6 "${ip}" |
| fi |
| done |
| move_configs |
| if [ "x${VE_STATE}" = "xrunning" ]; then |
| # synchronyze config files & interfaces |
| if [ "${NETWORKRESTART}" = "yes" ]; then |
| /etc/init.d/network restart |
| elif ! ifconfig ${VENET_DEV}|grep -q RUNNING 2>/dev/null; then |
| /etc/init.d/network restart |
| elif [ -n "${if_restart}" ]; then |
| ifup ${VENET_DEV} |
| else |
| cd /etc/sysconfig/network-scripts && |
| ./ifup-aliases ${VENET_DEV} |
| fi |
| fi |
| } |
| |
| add_ip |
| exit 0 |
| # end of script |