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Added L2TP/IPSec VPN Server Docker Image
Signed-off-by: Teddysun <i@teddysun.com>
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Teddysun
304
docker/l2tp/ipsec
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304
docker/l2tp/ipsec
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#!/bin/sh
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# IPsec startup and shutdown script
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#
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### BEGIN INIT INFO
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# Provides: ipsec
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# Required-Start: $network $remote_fs $syslog $named
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# Required-Stop: $syslog $remote_fs
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# Default-Start:
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# Default-Stop: 0 1 6
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# Short-Description: Start Libreswan IPsec at boot time
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# Description: Enable automatic key management for IPsec (KLIPS and NETKEY)
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### END INIT INFO
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#
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### see https://bugzilla.redhat.com/show_bug.cgi?id=636572
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### Debian and Fedora interpret the LSB differently for Default-Start:
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# Copyright (C) 1998, 1999, 2001 Henry Spencer.
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# Copyright (C) 2002 Michael Richardson <mcr@freeswan.org>
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# Copyright (C) 2006 Michael Richardson <mcr@xelerance.com>
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# Copyright (C) 2008 Michael Richardson <mcr@sandelman.ca>
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# Copyright (C) 2008-2015 Tuomo Soini <tis@foobar.fi>
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# Copyright (C) 2012 Paul Wouters <paul@libreswan.org>
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the
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# Free Software Foundation; either version 2 of the License, or (at your
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# option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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# for more details.
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#
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# ipsec sysv style init.d script for starting and stopping
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# the IPsec security subsystem (KLIPS and Pluto).
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#
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# This script becomes /etc/init.d/ipsec
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# and is also accessible as "ipsec setup"
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#
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# The startup and shutdown times are a difficult compromise (in particular,
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# it is almost impossible to reconcile them with the insanely early/late
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# times of NFS filesystem startup/shutdown). Startup is after startup of
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# syslog and pcmcia support; shutdown is just before shutdown of syslog.
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#
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# chkconfig: - 47 76
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# description: IPsec provides encrypted and authenticated communications; \
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# NETKEY/KLIPS is the kernel half of it, Pluto is the user-level management daemon.
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test ${IPSEC_INIT_SCRIPT_DEBUG} && set -v -x
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# Source function library.
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if [ -f /etc/init.d/functions ]; then
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. /etc/init.d/functions
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elif [ -f /lib/lsb/init-functions ]; then
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. /lib/lsb/init-functions
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fi
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# Check that networking is up.
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[ "${NETWORKING}" = "no" ] && exit 6
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if [ $(id -u) -ne 0 ]; then
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echo "permission denied (must be superuser)" | \
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logger -s -p daemon.error -t ipsec_setup 2>&1
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exit 4
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fi
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if [ $(ip addr list | grep -c cipsec) -ne 0 ]; then
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echo "Cisco IPsec client is already loaded, aborting! (cipsec# device found)"
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exit 1
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fi
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# where the private directory and the config files are
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IPSEC_CONF="${IPSEC_CONF:-/etc/ipsec.conf}"
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IPSEC_EXECDIR="${IPSEC_EXECDIR:-/usr/lib/ipsec}"
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IPSEC_SBINDIR="${IPSEC_SBINDIR:-/usr/sbin}"
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unset PLUTO_OPTIONS
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rundir=/var/run/pluto
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plutopid=${rundir}/pluto.pid
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plutoctl=${rundir}/pluto.ctl
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lockdir=/var/lock/subsys
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lockfile=${lockdir}/ipsec
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ipsecversion=/proc/net/ipsec_version
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kamepfkey=/proc/net/pfkey
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# /etc/resolv.conf related paths
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LIBRESWAN_RESOLV_CONF=${rundir}/libreswan-resolv-conf-backup
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ORIG_RESOLV_CONF=/etc/resolv.conf
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# there is some confusion over the name - just do both
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[ -f /etc/sysconfig/ipsec ] && . /etc/sysconfig/ipsec
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[ -f /etc/sysconfig/pluto ] && . /etc/sysconfig/pluto
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# misc setup
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umask 022
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# standardize PATH, and export it for everything else's benefit
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PATH="${IPSEC_SBINDIR}:/sbin:/usr/sbin:/usr/local/bin:/bin:/usr/bin"
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export PATH
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mkdir -p ${rundir}
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chmod 700 ${rundir}
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verify_config() {
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[ -f ${IPSEC_CONF} ] || exit 6
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config_error=$(ipsec addconn --config ${IPSEC_CONF} --checkconfig 2>&1)
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RETVAL=$?
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if [ ${RETVAL} -gt 0 ]; then
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echo "Configuration error - the following error occurred:"
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echo ${config_error}
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echo "IKE daemon status was not modified"
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exit ${RETVAL}
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fi
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}
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start() {
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echo -n "Starting pluto IKE daemon for IPsec: "
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ipsec _stackmanager start
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# pluto searches the current directory, so this is required for making it selinux compliant
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cd /
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# Create nss db or convert from old format to new sql format
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ipsec --checknss
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# Enable nflog if configured
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ipsec --checknflog > /dev/null
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# This script will enter an endless loop to ensure pluto restarts on crash
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ipsec _plutorun --config ${IPSEC_CONF} --nofork ${PLUTO_OPTIONS} &
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[ -d ${lockdir} ] || mkdir -p ${lockdir}
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touch ${lockfile}
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# Because _plutorun starts pluto at background we need to make sure pluto is started
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# before we know if start was successful or not
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for waitsec in 1 2 3 4 5; do
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if status >/dev/null; then
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RETVAL=0
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break
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else
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echo -n "."
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sleep 1
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RETVAL=1
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fi
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done
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if [ ${RETVAL} -ge 1 ]; then
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rm -f ${lockfile}
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fi
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echo
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return ${RETVAL}
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}
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stop() {
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if [ -e ${plutoctl} ]; then
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echo "Shutting down pluto IKE daemon"
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ipsec whack --shutdown 2>/dev/null
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# don't use seq, might not exist on embedded
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for waitsec in 1 2 3 4 5 6 7 8 9 10; do
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if [ -s ${plutopid} ]; then
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echo -n "."
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sleep 1
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else
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break
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fi
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done
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echo
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rm -f ${plutoctl} # we won't be using this anymore
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fi
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if [ -s ${plutopid} ]; then
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# pluto did not die peacefully
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pid=$(cat ${plutopid})
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if [ -d /proc/${pid} ]; then
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kill -TERM ${pid}
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RETVAL=$?
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sleep 5;
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if [ -d /proc/${pid} ]; then
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kill -KILL ${pid}
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RETVAL=$?
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fi
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if [ ${RETVAL} -ne 0 ]; then
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echo "Kill failed - removing orphaned ${plutopid}"
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fi
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else
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echo "Removing orphaned ${plutopid}"
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fi
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rm -f ${plutopid}
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fi
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ipsec _stackmanager stop
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ipsec --stopnflog > /dev/null
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# cleaning up backup resolv.conf
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if [ -e ${LIBRESWAN_RESOLV_CONF} ]; then
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if grep 'Libreswan' ${ORIG_RESOLV_CONF} > /dev/null 2>&1; then
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cp ${LIBRESWAN_RESOLV_CONF} ${ORIG_RESOLV_CONF}
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fi
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rm -f ${LIBRESWAN_RESOLV_CONF}
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fi
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rm -f ${lockfile}
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return ${RETVAL}
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}
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restart() {
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verify_config
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stop
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start
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return $?
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}
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status() {
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local RC
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if [ -f ${plutopid} ]; then
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if [ -r ${plutopid} ]; then
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pid=$(cat ${plutopid})
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if [ -n "$pid" -a -d /proc/${pid} ]; then
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RC=0 # running
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else
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RC=1 # not running but pid exists
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fi
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else
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RC=4 # insufficient privileges
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fi
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fi
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if [ -z "${RC}" ]; then
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if [ -f ${lockfile} ]; then
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RC=2
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else
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RC=3
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fi
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fi
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case "${RC}" in
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0)
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echo "ipsec: pluto (pid ${pid}) is running..."
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return 0
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;;
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1)
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echo "ipsec: pluto dead but pid file exits"
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return 1
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;;
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2)
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echo "ipsec: pluto dead but subsys locked"
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return 2
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;;
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4)
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echo "ipsec: pluto status unknown due to insufficient privileges."
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return 4
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;;
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esac
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echo "ipsec: pluto is stopped"
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return 3
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}
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condrestart() {
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verify_config
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RETVAL=$?
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if [ -f ${lockfile} ]; then
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restart
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RETVAL=$?
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fi
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return ${RETVAL}
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}
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version() {
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ipsec version
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return $?
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}
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# do it
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case "$1" in
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start)
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start
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RETVAL=$?
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;;
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stop)
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stop
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RETVAL=$?
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;;
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restart)
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restart
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RETVAL=$?
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;;
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reload|force-reload)
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restart
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RETVAL=$?
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;;
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condrestart|try-restart)
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condrestart
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RETVAL=$?
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;;
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status)
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status
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RETVAL=$?
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${IPSEC_EXECDIR}/whack --status 2>/dev/null | grep Total | sed 's/^000\ Total\ //'
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;;
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version)
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version
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RETVAL=$?
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;;
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*)
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echo "Usage: $0 {start|stop|restart|reload|force-reload|condrestart|try-restart|status|version}"
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RETVAL=2
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esac
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exit ${RETVAL}
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