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479 lines
12 KiB
479 lines
12 KiB
#!/bin/sh /etc/rc.common
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#
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# Copyright (C) 2015 Vitaly Protsko <villy@sft.ru>
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#set -vx
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USE_PROCD=1
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START=60
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STOP=40
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let connWait=2/2
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confDir=/var/racoon
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confExtZone=
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confIntZone=
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confPort=
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confNATPort=
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confIPMode=
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confPh1ID=0
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log="logger -t init.d/racoon[$$] "
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. /etc/racoon/functions.sh
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setup_load() {
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config_get confExtZone "$1" ext_zone wan
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config_get confIntZone "$1" int_zone lan
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config_get confPort "$1" port 500
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config_get confNATPort "$1" natt_port 4500
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config_get confIPMode "$1" ipversion ""
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case X$confIPMode in
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X4|X6) ;;
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*) unset confIPMode ;;
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esac
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}
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write_header() {
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echo "
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# autogenerated, don't edit, look at /etc/config/racoon
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#
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path certificate \"$confDir/cert\";
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path script \"/etc/racoon\";
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path pre_shared_key \"$confDir/psk.txt\";
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path pidfile \"$confDir/racoon.pid\";
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padding { maximum_length 20; randomize off; strict_check off; exclusive_tail off; }
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timer { counter 5; interval 20 sec; persend 1; phase1 30 sec; phase2 15 sec; }
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"
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}
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setup_conf() {
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local conf=$confDir/racoon.conf
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local peerconf=$confDir/peers.txt
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local pskconf=$confDir/psk.txt
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local item
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local data
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data="$(get_zoneiplist $confExtZone)"
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if [ "X$data" = X ]; then
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$log "No IP addresses found for zone $confExtZone, exitng"
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errno=2; return 2
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fi
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write_header > $conf
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echo -n > $peerconf
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echo -n > $pskconf
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chmod 0600 $conf $peerconf $pskconf
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echo "listen {" >> $conf
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for item in $data ; do
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echo " isakmp $item [$confPort]; isakmp_natt $item [$confNATPort];" >> $conf
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done
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echo "}" >> $conf
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config_get_bool item "$1" debug 0
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data=warning
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test $item -ne 0 && data=debug
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echo "log $data;" >> $conf
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setup_fw add
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}
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setup_p1() {
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local conf=$confDir/racoon.conf
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local data
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echo " proposal {" >> $conf
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config_get data "$1" lifetime 28800
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echo " lifetime time $data sec;" >> $conf
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config_get data "$1" enc_alg
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test -n "$data" && echo " encryption_algorithm $data;" >> $conf
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config_get data "$1" hash_alg
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test -n "$data" && echo " hash_algorithm $data;" >> $conf
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config_get data "$1" auth_method
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test -n "$data" && echo " authentication_method $data;" >> $conf
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config_get data "$1" dh_group 2
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echo -e " dh_group $data;\n }" >> $conf
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}
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setup_fw() {
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local cmd=/usr/sbin/iptables
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local mode
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case "$1" in
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add|up|1) mode=A ;;
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del|down|0) mode=D ;;
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*) return 3 ;;
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esac
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$cmd -$mode input_${confExtZone}_rule -p AH -j ACCEPT
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$cmd -$mode input_${confExtZone}_rule -p ESP -j ACCEPT
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$cmd -$mode input_${confExtZone}_rule -p UDP --dport $confPort -j ACCEPT
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$cmd -$mode input_${confExtZone}_rule -p UDP --dport $confNATPort -j ACCEPT
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}
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setup_sa() {
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local conf=$confDir/racoon.conf
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local remote="${2/ *}"
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local client="${2#* }"
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local locnet
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local remnet
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local p2
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local data
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test "$2" = "$client" && unset client
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if [ -z "$client" ]; then
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config_get locnet "$1" local_net
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config_get remnet "$1" remote_net
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if [ -z "$locnet" ] || [ -z "$remnet" ]; then
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$log "Remote and local networks for $1 must be configured ($2)"
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errno=4; return 4
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fi
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if [ "$remote" = "anonymous" ]; then
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echo "sainfo anonymous {" >> $conf
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else
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echo "sainfo address $locnet any address $remnet any {" >> $conf
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fi
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else
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echo "sainfo anonymous {" >> $conf
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fi
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config_get p2 "$1" p2_proposal
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if [ -z "$p2" ]; then
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$log "Phase2 proposal must be configured in $1 sainfo"
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errno=5; return 5
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fi
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echo " remoteid $confPh1ID;" >> $conf
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config_get data "$p2" pfs_group
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test -n "$data" && echo " pfs_group $data;" >> $conf
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config_get data "$p2" lifetime 14400
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test -n "$data" && echo " lifetime time $data sec;" >> $conf
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config_get data "$p2" enc_alg
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test -n "$data" && echo " encryption_algorithm $data;" >> $conf
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config_get data "$p2" auth_alg
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test -n "$data" && echo " authentication_algorithm $data;" >> $conf
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echo -e " compression_algorithm deflate;\n}" >> $conf
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if [ "$remote" = "anonymous" ]; then
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echo -e "mode_cfg {\n auth_source system;\n conf_source local;" >> $conf
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config_get data "$1" dns4
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test -n "$data" && echo " dns4 $data;" >> $conf
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config_get data "$1" defdomain
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test -n "$data" && echo " default_domain \"$data\";" >> $conf
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data=${remnet%/*}
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let "data=${data##*.}+1"
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echo " network4 ${remnet%.*}.$data;" >> $conf
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let "data=255<<(24-${remnet#*/}+8)&255"
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echo " netmask4 255.255.255.$data;" >> $conf
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echo -e " split_network include $locnet;\n}" >> $conf
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elif [ -z "$client" ]; then
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config_list_foreach "$1" remote_exclude manage_nonesa add remote "$locnet"
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config_list_foreach "$1" local_exclude manage_nonesa add local "$remnet"
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manage_sa add "$locnet" "$remnet" $remote
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test $? -gt 0 -o $errno -gt 0 && return $errno
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manage_fw add $confIntZone $confExtZone "$remnet"
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fi
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}
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setup_tunnel() {
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local conf=$confDir/racoon.conf
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local peerconf=$confDir/peers.txt
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local data
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local remote
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local xauth
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config_get_bool data "$1" enabled 0
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test "$data" = "0" && return 0
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config_get remote "$1" remote
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if [ "$remote" = "anonymous" ]; then
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echo -e "remote anonymous {\n generate_policy on;" >> $conf
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else
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data=$(nslookup "$remote" | awk 'NR == 5 {print $3}')
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test -n "$data" && remote="$data"
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echo -e "remote \"$1\" {\n remote_address $remote;" >> $conf
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echo "$data" >> $peerconf
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fi
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config_get data "$1" pre_shared_key ""
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if [ -n "$data" ]; then
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if [ "$remote" != "anonymous" ]; then
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echo "$remote $data" >> $confDir/psk.txt
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else
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echo "* $data" >> $confDir/psk.txt
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fi
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fi
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let confPh1ID=$confPh1ID+1
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echo " ph1id $confPh1ID;" >> $conf
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config_get xauth "$1" username ""
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config_get data "$1" certificate ""
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if [ -n "$data" ]; then
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echo -en " verify_cert on;\n my_identifier asn1dn;\n certificate_type x509 " >> $conf
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echo -en "\"$data.crt\" \"$data.key\";\n send_cr off;\n peers_identifier " >> $conf
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else
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config_get data "$1" my_id_type ""
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if [ -n "$data" ]; then
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echo -n " my_identifier $data" >> $conf
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config_get data "$1" my_id ""
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if [ -n "$data" ]; then
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echo " \"$data\";" >> $conf
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elif [ -n "$xauth" ]; then
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echo " \"$xauth\";" >> $conf
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else
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echo ";" >> $conf
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fi
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elif [ -n "$xauth" ]; then
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echo " my_identifier user_fqdn \"$xauth\";" >> $conf
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fi
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echo -n " peers_identifier " >> $conf
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fi
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if [ "$remote" = "anonymous" ]; then
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echo "user_fqdn;" >> $conf
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else
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config_get data "$1" peer_id_type "asn1dn"
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echo -n "$data" >> $conf
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config_get data "$1" peer_id ""
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test -n "$data" && echo -n " \"$data\"" >> $conf
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echo ";" >> $conf
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fi
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if [ -n "$xauth" ]; then
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config_get data "$1" password
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if [ -z "$data" ]; then
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$log "Password must be given in $1 tunnel"
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errno=7; return 7
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fi
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echo "$xauth $data" >> $confDir/psk.txt
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echo " xauth_login \"$xauth\";" >> $conf
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echo -e " script \"p1client-up\" phase1_up;\n script \"p1client-down\" phase1_down;" >> $conf
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fi
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config_get data "$1" exchange_mode
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if [ -z "$data" ]; then
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data=main
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test -n "$xauth" && data="${data},aggressive"
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fi
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echo -e " exchange_mode $data;\n nat_traversal on;\n support_proxy on;" >> $conf
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config_get data "$1" prop_check "obey"
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test -n "$data" && echo " proposal_check $data;" >> $conf
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config_get_bool data "$1" weak_p1check 1
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if [ $data -eq 0 ]; then data=off; else data=on; fi
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echo " weak_phase1_check $data;" >> $conf
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config_get_bool data "$1" verify_id 1
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if [ $data -eq 0 ]; then data=off; else data=on; fi
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echo " verify_identifier $data;" >> $conf
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config_get data "$1" dpd_delay ""
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test -n "$data" && echo " dpd_delay $data;" >> $conf
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unset data
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test -n "$xauth" && data="on"
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config_get data "$1" mode_cfg "$data"
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test -n "$data" && echo " mode_cfg $data;" >> $conf
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config_get_bool data "$1" init 0
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if [ $data -eq 0 ]; then data=off; else data=on; fi
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echo " initial_contact $data;" >> $conf
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config_list_foreach "$1" p1_proposal setup_p1
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echo "}" >> $conf
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config_list_foreach "$1" sainfo setup_sa "$remote $xauth"
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}
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setup_cert() {
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local item
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local data
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for item in key crt ; do
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config_get data "$1" $item ""
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test -z "$data" && continue
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echo "$data" |\
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sed 's/-\+[A-Z ]\+-\+/\n&\n/g' | sed 's/.\{50,50\}/&\n/g' | sed '/^$/d'\
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> $confDir/cert/$1.$item
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chmod 600 $confDir/cert/$1.$item
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done
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if [ -s $confDir/cert/$1.crt ]; then
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data=$(openssl x509 -noout -hash -in $confDir/cert/$1.crt)
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ln -sf $confDir/cert/$1.crt $confDir/cert/$data.0
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fi
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}
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destroy_sa() {
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local locnet
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local remnet
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config_get locnet "$1" local_net
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config_get remnet "$1" remote_net
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if [ -z "$locnet" ] || [ -z "$remnet" ]; then
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$log "Remote and local networks for $1 must be configured"
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errno=4; return 4
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fi
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config_list_foreach "$1" remote_exclude manage_nonesa del remote "$locnet"
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config_list_foreach "$1" local_exclude manage_nonesa del local "$remnet"
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manage_sa del "$locnet" "$remnet" $2
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manage_fw del $confIntZone $confExtZone "$remnet"
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}
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destroy_tunnel() {
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local data
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config_get_bool data "$1" enabled 0
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test "$data" = "0" && return 0
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config_get remote "$1" remote
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data=$(nslookup "$remote" | awk 'NR == 5 {print $3}')
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test -n "$data" && remote="$data"
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config_get data "$1" username ""
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if [ -z "$data" ]; then
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config_list_foreach "$1" sainfo destroy_sa $remote
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fi
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}
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destroy_conf() {
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setup_fw del
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}
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check_software() {
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local item
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for item in /usr/sbin/setkey /usr/bin/openssl /usr/sbin/ip ; do
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if [ ! -x $item ]; then
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$log "Needed program $item not found, exiting"
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errno=9; return 9
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fi
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done
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}
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cleanup_conf() {
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config_load racoon
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config_foreach setup_load racoon
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config_foreach destroy_conf racoon
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config_foreach destroy_tunnel tunnel
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/usr/sbin/setkey -P -F
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/usr/sbin/setkey -F
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}
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check_dir() {
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local item
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for item in $confDir $confDir/cert ; do
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if [ ! -d $item ]; then
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mkdir -m 0700 -p $item
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fi
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done
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}
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wait4wanzone() {
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local item=$connWait
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local data
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data="$(get_zoneiplist $confExtZone)"
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while [ $item -gt 0 ]; do
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test -n "$data" && break
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sleep 2
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let "item=$item-1"
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data="$(get_zoneiplist $confExtZone)"
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done
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test -z "$data" && return 10
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}
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start_service() {
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check_software
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test $? -gt 0 -o $errno -gt 0 && exit $errno
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check_dir
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config_load racoon
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config_foreach setup_load racoon
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config_foreach wait4wanzone racoon
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if [ $? -gt 0 ] || [ $errno -gt 0 ]; then
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$log "No active interfaces in $confExtZone zone found, exiting"
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exit $errno
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fi
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config_foreach setup_conf racoon
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test $? -gt 0 -o $errno -gt 0 && exit $errno
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config_foreach setup_tunnel tunnel
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test $? -gt 0 -o $errno -gt 0 && exit $errno
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config_foreach setup_cert certificate
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procd_open_instance
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procd_set_param command /usr/sbin/racoon
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test -n "$confIPMode" && procd_append_param command -$confIPMode
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procd_append_param command -F -f $confDir/racoon.conf
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procd_set_param file $confDir/racoon.conf
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procd_close_instance
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if [ -x /etc/racoon/vpnctl ]; then
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let connWait=$connWait*2+2
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( sleep $connWait; /etc/racoon/vpnctl up ) &
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fi
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}
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service_triggers() {
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local item
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local data
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procd_add_reload_trigger "racoon" "network"
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config_load racoon
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config_foreach setup_load racoon
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data=$(get_zoneiflist $confExtZone)
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if [ $? -gt 0 ] || [ $errno -gt 0 ] || [ -z "$data" ]; then
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$log "Can not find interfaces for $confExtZone zone"
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else
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for item in $data ; do
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procd_add_reload_interface_trigger $item
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done
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fi
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}
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stop_service() {
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cleanup_conf
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procd_kill racoon
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}
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trap "cleanup_conf" 1 2 3 4 5 6 7 8 9 10
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# EOF /etc/init.d/racoon
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