457 lines
10 KiB
Bash
Executable File
457 lines
10 KiB
Bash
Executable File
#!/bin/sh
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# IPsec startup and shutdown command
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# Copyright (C) 1998, 1999, 2001 Henry Spencer.
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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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# RCSID $Id: _realsetup.in,v 1.10 2005/09/25 21:30:52 as Exp $
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IPSEC_NAME=strongSwan
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me='ipsec setup' # for messages
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# Misc. paths (some of this should perhaps be overrideable from ipsec.conf).
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plutopid=/var/run/pluto.pid
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subsyslock=/var/lock/subsys/ipsec
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lock=/var/run/ipsec_setup.pid
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info=/var/run/ipsec.info
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sysflags=/proc/sys/net/ipsec
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modules=/proc/modules
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ipforward=/proc/sys/net/ipv4/ip_forward
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ipsecversion=/proc/net/ipsec_version
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kamepfkey=/proc/net/pfkey
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# make sure output of (e.g.) ifconfig is in English
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unset LANG LANGUAGE LC_ALL LC_MESSAGES
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# check we were called properly
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if test " $IPSEC_confreadsection" != " setup"
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then
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echo "$me: $0 must be called by ipsec_setup" >&2
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exit 1
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fi
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# defaults for "config setup" items
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IPSECinterfaces=${IPSECinterfaces:-%defaultroute}
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if test " $IPSECinterfaces" = " %none" ; then IPSECinterfaces= ; fi
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# IPSECforwardcontrol "no"
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# IPSECsyslog "daemon.error"
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# IPSECklipsdebug "none"
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# IPSECplutodebug "none"
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# IPSECdumpdir "" (no dump)
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# IPSECmanualstart ""
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# IPSECpluto "yes"
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IPSECplutowait=${IPSECplutowait:-no}
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# IPSECprepluto ""
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# IPSECpostpluto ""
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# IPSECfragicmp "yes"
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# IPSEChidetos "yes"
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IPSECrp_filter=${IPSECrp_filter:-0}
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IPSECuniqueids=${IPSECuniqueids:-yes}
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IPSECcrlcheckinterval=${IPSECcrlcheckinterval:-0}
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# IPSECpkcs11module ""
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# IPSECoverridemtu ""
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# Shall we trace?
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execute="true"
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display="false"
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for i in $IPSEC_setupflags
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do
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case "$i" in
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"--showonly") execute="false" ; display=true ;;
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"--show") display=true ;;
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esac
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done
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if $display
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then
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echo " " PATH="$PATH"
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fi
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perform() {
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if $display
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then
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echo " " "$*"
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fi
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if $execute
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then
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eval "$*"
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fi
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}
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# function to set up manually-keyed connections
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manualconns() {
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if test " $IPSECmanualstart" != " "
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then
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for tu in $IPSECmanualstart
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do
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perform ipsec manual --up $tu
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done
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fi
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# search for things to "ipsec manual --up": auto == "manual"
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eval `ipsec _confread --varprefix MANUALSTART --search auto manual`
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if test " $MANUALSTART_confreadstatus" != " "
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then
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echo "auto=manual search: $MANUALSTART_confreadstatus"
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echo "unable to determine what conns to manual --up; none done"
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elif test " $MANUALSTART_confreadnames" != " "
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then
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for tu in $MANUALSTART_confreadnames
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do
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perform ipsec manual --up $tu
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done
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fi
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}
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# for no-stdout logging:
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LOGONLY="logger -p $IPSECsyslog -t ipsec_setup"
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# What an ugly string.
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# Must be a string, not a function, because it is nested
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# within another sequence (for plutorun).
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# Luckily there are NO substitutions in it.
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KILLKLIPS='ifl=` ifconfig | sed -n -e "/^ipsec/s/ .*//p" ` ;
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test "X$ifl" != "X" &&
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for i in $ifl ;
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do
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ifconfig $i down ;
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ipsec tncfg --detach --virtual $i ;
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done ;
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test -r /proc/net/ipsec_klipsdebug && ipsec klipsdebug --none ;
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ipsec eroute --clear ;
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ipsec spi --clear ;
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for alg in aes serpent twofish blowfish sha2 ;
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do
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lsmod 2>&1 | grep "^ipsec_$alg" > /dev/null && rmmod ipsec_$alg ;
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done ;
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lsmod 2>&1 | grep "^ipsec" > /dev/null && rmmod ipsec'
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if test -f $kamepfkey
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then
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KILLKLIPS='
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if ip xfrm state > /dev/null 2>&1 ;
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then
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ip xfrm state flush ;
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ip xfrm policy flush ;
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elif type setkey > /dev/null 2>&1 ;
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then
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setkey -F ;
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setkey -FP ;
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fi'
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fi
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# do it
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case "$1" in
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start|--start|_autostart)
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# First, does it seem to be going already?
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perform test ! -f $lock "||" "{" \
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echo "\"$IPSEC_NAME IPsec apparently already running, start aborted\"" ";" \
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exit 1 ";" \
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"}"
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# announcement
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# (Warning, changes to this log message may affect barf.)
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version="`ipsec --version | awk 'NR == 1 { print $(3) }' | sed -e 's/^U\(.*\)\/K(.*/\1/'`"
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case "$1" in
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start|--start) perform echo "\"Starting $IPSEC_NAME IPsec $version...\"" ;;
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_autostart) perform echo "\"Restarting $IPSEC_NAME IPsec $version...\"" ;;
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esac
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# preliminaries
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perform rm -f $lock
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for f in /dev/random /dev/urandom
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do
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perform test -r $f "||" "{" \
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echo "\"...unable to start $IPSEC_NAME IPsec, no $f!\"" ";" \
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exit 1 ";" \
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"}"
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done
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# the meaning of $$ at a different runtime is questionable!
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perform echo '$$' ">" $lock
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perform test -s $lock "||" "{" \
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echo "\"...unable to create $lock, aborting start!\"" ";" \
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rm -f $lock ";" \
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exit 1 ";" \
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"}"
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perform ">" $info
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# here we go
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perform ipsec _startklips \
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--info $info \
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--debug "\"$IPSECklipsdebug\"" \
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--omtu "\"$IPSECoverridemtu\"" \
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--fragicmp "\"$IPSECfragicmp\"" \
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--hidetos "\"$IPSEChidetos\"" \
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--rpfilter "\"$IPSECrp_filter\"" \
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--log "\"$IPSECsyslog\"" \
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$IPSECinterfaces "||" \
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"{" rm -f $lock ";" exit 1 ";" "}"
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perform test -f $ipsecversion "||" \
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test -f $kamepfkey "||" "{" \
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echo "\"OOPS, should have aborted! Broken shell!\"" ";" \
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exit 1 ";" \
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"}"
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# misc pre-Pluto setup
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perform test -d `dirname $subsyslock` "&&" touch $subsyslock
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if test " $IPSECforwardcontrol" = " yes"
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then
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perform grep '"^0"' $ipforward ">" /dev/null "&&" "{" \
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echo "\"enabling IP forwarding:\"" "|" $LOGONLY ";" \
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echo "\"ipforwardingwas=$fw\"" ">>" $info ";" \
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echo 1 ">" $ipforward ";" \
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"}"
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fi
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manualconns
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plutorestartoncrash=""
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case "$IPSECplutorestartoncrash" in
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true|[yY]|yes|restart) plutorestartoncrash="--plutorestartoncrash true";;
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false|[nN]|no|die) plutorestartoncrash="--plutorestartoncrash false" ;;
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esac
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# Pluto
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case "$1" in
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start|--start) re= ;;
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_autostart) re=--re ;;
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esac
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if test " $IPSECpluto" != " no"
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then
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perform ipsec _plutorun $re \
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--debug "\"$IPSECplutodebug\"" \
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--uniqueids "\"$IPSECuniqueids\"" \
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--nocrsend "\"$IPSECnocrsend\"" \
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--strictcrlpolicy "\"$IPSECstrictcrlpolicy\"" \
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--cachecrls "\"$IPSECcachecrls\"" \
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--nat_traversal "\"$IPSECnat_traversal\"" \
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--keep_alive "\"$IPSECkeep_alive\"" \
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--force_keepalive "\"$IPSECforce_keepalive\"" \
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--disable_port_floating "\"$IPSECdisable_port_floating\"" \
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--virtual_private "\"$IPSECvirtual_private\"" \
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--crlcheckinterval "\"$IPSECcrlcheckinterval\"" \
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--pkcs11module "\"$IPSECpkcs11module\"" \
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--pkcs11keepstate "\"$IPSECpkcs11keepstate\"" \
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--pkcs11proxy "\"$IPSECpkcs11proxy\"" \
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--dump "\"$IPSECdumpdir\"" \
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--opts "\"$IPSECplutoopts\"" \
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--stderrlog "\"$IPSECplutostderrlog\"" \
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--wait "\"$IPSECplutowait\"" \
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--pre "\"$IPSECprepluto\"" \
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--post "\"$IPSECpostpluto\"" \
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--log "\"$IPSECsyslog\"" $plutorestartoncrash \
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--pid "\"$plutopid\"" "||" "{" \
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$KILLKLIPS ";" \
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rm -f $lock ";" \
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exit 1 ";" \
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"}"
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fi
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# done!
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perform echo "\"...$IPSEC_NAME IPsec started\"" "|" $LOGONLY
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;;
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stop|--stop|_autostop) # _autostop is same as stop
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# Shut things down.
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perform echo "\"Stopping $IPSEC_NAME IPsec...\""
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perform \
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if test -r $lock ";" \
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then \
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status=0 ";" \
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. $info ";" \
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else \
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echo "\"stop ordered, but IPsec does not appear to be running!\"" ";" \
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echo "\"doing cleanup anyway...\"" ";" \
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status=1 ";" \
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fi
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if test " $IPSECforwardcontrol" = " yes"
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then
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perform test "\"X\$ipforwardingwas\"" = "\"X0\"" "&&" "{" \
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echo "\"disabling IP forwarding:\"" "|" $LOGONLY ";" \
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echo 0 ">" $ipforward ";" \
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"}"
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fi
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perform test -f $plutopid "&&" "{" \
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if ps -p '`' cat $plutopid '`' ">" /dev/null ";" \
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then \
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ipsec whack --shutdown "|" grep -v "^002" ";" \
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sleep 1 ";" \
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if test -s $plutopid ";" \
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then \
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echo "\"Attempt to shut Pluto down failed! Trying kill:\"" ";" \
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kill '`' cat $plutopid '`' ";" \
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sleep 5 ";" \
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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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"}"
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perform $KILLKLIPS
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perform test -d `dirname $subsyslock` "&&" rm -f $subsyslock
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perform rm -f $info $lock
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perform echo "...$IPSEC_NAME IPsec stopped" "|" $LOGONLY
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perform exit \$status
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;;
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status|--status)
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if test " $IPSEC_setupflags" != " "
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then
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echo "$me $1 does not support $IPSEC_setupflags"
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exit 1
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fi
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if test -f $info
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then
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hasinfo=yes
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fi
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if test -f $lock
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then
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haslock=yes
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fi
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if test -f $subsyslock
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then
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hassublock=yes
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fi
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if test -s $plutopid
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then
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if ps -p `cat $plutopid` >/dev/null
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then
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plutokind=normal
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elif ps -C pluto >/dev/null
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then
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plutokind=illicit
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fi
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elif ps -C pluto >/dev/null
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then
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plutokind=orphaned
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else
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plutokind=no
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fi
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if test -r /proc/net/ipsec_eroute
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then
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if test " `wc -l </proc/net/ipsec_eroute`" -gt 0
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then
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eroutes=yes
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fi
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fi
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if test -r $ipsecversion
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then
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klips=yes
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elif test -r $modules
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then
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klips=maybe
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else
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klips=none
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fi
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if test "$haslock"
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then
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echo "IPsec running"
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# might not be a subsystem lock dir, ignore that issue
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if test "$plutokind" = "normal" -a "$klips" = "yes" -a "$hasinfo"
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then
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echo "pluto pid `cat $plutopid`"
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exit 0
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fi
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echo "but..."
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if test "$plutokind" != "normal"
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then
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echo "$plutokind Pluto running!"
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fi
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if test ! "$hasinfo"
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then
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echo "$info file missing!"
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fi
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case $klips in
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maybe) echo "KLIPS module is not loaded!" ;;
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none) echo "no KLIPS in kernel!" ;;
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esac
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if test "$eroutes"
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then
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echo "some eroutes exist"
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fi
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exit 1
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else
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echo "IPsec stopped"
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if test ! "$hassublock" -a ! "$hasinfo" -a "$plutokind" = "no" \
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-a ! "$eroutes"
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then
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exit 0
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fi
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echo "but..."
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if test "$hassublock"
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then
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echo "has subsystem lock ($subsyslock)!"
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fi
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if test "$hasinfo"
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then
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echo "has $info file!"
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fi
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if test "$plutokind" != "normal"
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then
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echo "$plutokind Pluto is running!"
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fi
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if test "$eroutes"
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then
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echo "some eroutes exist!"
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fi
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exit 1
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fi
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;;
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--version)
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if test " $IPSEC_setupflags" != " "
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then
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echo "$me $1 does not support $IPSEC_setupflags"
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exit 1
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fi
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echo "$me $IPSEC_VERSION"
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exit 0
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;;
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--help)
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if test " $IPSEC_setupflags" != " "
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then
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echo "$me $1 does not support $IPSEC_setupflags"
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exit 1
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fi
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echo "Usage: $me {--start|--stop|--restart|--status}"
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exit 0
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;;
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*)
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echo "Usage: $me {--start|--stop|--restart|--status}" >&2
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exit 2
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esac
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exit 0
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