the ikev2/nat-two-rw-mark and ikev2/rw-mark-in-out scenarios use the PLUTO_MARK_IN and PLUTO_ESP_ENC variables in the mark_update script

testing/tests/ikev2/nat-two-rw-mark-in-out/description.txt

@@ -1,15 +0,0 @@
-The roadwarriors <b>alice</b> and <b>venus</b> sitting behind the NAT router <b>moon</b> set up
-tunnels to gateway <b>sun</b>. UDP encapsulation is used to traverse the NAT router.
-Since both roadwarriors possess the same 10.1.0.0/25 subnet, gateway <b>sun</b> uses Source NAT
-after ESP decryption to map these subnets to 10.3.0.10 and 10.3.0.20, respectively.
-<p/>
-In order to differentiate between the tunnels to <b>alice</b> and <b>venus</b>, respectively,
-<b>XFRM marks</b> are defined for both the inbound and outbound IPsec SAs and policies using
-the <b>mark_in</b> and <b>mark_out</b> parameters in ipsec.conf.
-<p/>
-<b>iptables -t mangle</b> rules are then used in the PREROUTING chain to mark the traffic to
-and from <b>alice</b> and <b>venus</b>, respectively.
-<p/>
-<b>leftfirewall=yes</b> automatically inserts iptables-based firewall rules that let pass
-the tunneled traffic. In order to test the tunnel, the NAT-ed hosts <b>alice</b> and <b>venus</b>
-ping the client <b>bob</b> behind the gateway <b>sun</b>.

testing/tests/ikev2/nat-two-rw-mark-in-out/pretest.dat

@@ -1,24 +0,0 @@
-alice::/etc/init.d/iptables start 2> /dev/null
-venus::/etc/init.d/iptables start 2> /dev/null
-sun::/etc/init.d/iptables start 2> /dev/null
-moon::echo 1 > /proc/sys/net/ipv4/ip_forward
-moon::iptables -t nat -A POSTROUTING -o eth0 -s 10.1.0.0/16 -p tcp -j SNAT --to PH_IP_MOON
-moon::iptables -t nat -A POSTROUTING -o eth0 -s PH_IP_ALICE -p udp --sport 500  -j SNAT --to PH_IP_MOON:510
-moon::iptables -t nat -A POSTROUTING -o eth0 -s PH_IP_VENUS -p udp --sport 500  -j SNAT --to PH_IP_MOON:520
-moon::iptables -t nat -A POSTROUTING -o eth0 -s PH_IP_ALICE -p udp --sport 4500 -j SNAT --to PH_IP_MOON:4510
-moon::iptables -t nat -A POSTROUTING -o eth0 -s PH_IP_VENUS -p udp --sport 4500 -j SNAT --to PH_IP_MOON:4520
-sun::echo 1 > /proc/sys/net/ipv4/ip_forward
-sun::iptables -t mangle -A PREROUTING -s PH_IP_MOON -p udp --sport 4510 -j MARK --set-mark 10
-sun::iptables -t mangle -A PREROUTING -s PH_IP_MOON -p udp --sport 4520 -j MARK --set-mark 20
-sun::iptables -t nat -A POSTROUTING -o eth1 -m mark --mark 10 -j SNAT --to 10.3.0.10
-sun::iptables -t nat -A POSTROUTING -o eth1 -m mark --mark 20 -j SNAT --to 10.3.0.20
-sun::iptables -t mangle -A PREROUTING -d 10.3.0.10 -j MARK --set-mark 11
-sun::iptables -t mangle -A PREROUTING -d 10.3.0.20 -j MARK --set-mark 21
-alice::ipsec start
-venus::ipsec start
-sun::ipsec start
-alice::sleep 2 
-alice::ipsec up nat-t
-venus::sleep 2 
-venus::ipsec up nat-t
-venus::sleep 2

testing/tests/ikev2/nat-two-rw-mark/description.txt

@@ -10,6 +10,7 @@ the <b>mark</b> parameter in ipsec.conf.
 <b>iptables -t mangle</b> rules are then used in the PREROUTING chain to mark the traffic to
 and from <b>alice</b> and <b>venus</b>, respectively.
 <p/>
-<b>leftfirewall=yes</b> automatically inserts iptables-based firewall rules that let pass
-the tunneled traffic. In order to test the tunnel, the NAT-ed hosts <b>alice</b> and <b>venus</b>
-ping the client <b>bob</b> behind the gateway <b>sun</b>.
+The iptables script designated by <b>leftupdown=/etc/mark_updown</b> automatically inserts 
+inbound mangle rules that mark the inbound ESP_IN_UDP packets as well as the IPsec-policy rules 
+that let pass the tunneled traffic. In order to test the tunnel, the NAT-ed hosts <b>alice</b> 
+and <b>venus</b> ping the client <b>bob</b> behind the gateway <b>sun</b>.

testing/tests/ikev2/nat-two-rw-mark/hosts/sun/etc/ipsec.conf

@@ -30,6 +30,6 @@ conn sun
 	leftcert=sunCert.pem
 	leftid=@sun.strongswan.org
 	leftsubnet=10.2.0.0/16
-	leftfirewall=yes
+	leftupdown=/etc/mark_updown
 	right=%any
 	rightsubnet=0.0.0.0/0

testing/tests/ikev2/nat-two-rw-mark/hosts/sun/etc/mark_updown

@@ -0,0 +1,527 @@
+#! /bin/sh
+# updown script setting inbound marks on ESP traffic in the mangle chain
+#
+# Copyright (C) 2003-2004 Nigel Meteringham
+# Copyright (C) 2003-2004 Tuomo Soini
+# Copyright (C) 2002-2004 Michael Richardson
+# Copyright (C) 2005-2010 Andreas Steffen <andreas.steffen@strongswan.org>
+#
+# 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.  See <http://www.fsf.org/copyleft/gpl.txt>.
+#
+# 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.
+
+# CAUTION:  Installing a new version of strongSwan will install a new
+# copy of this script, wiping out any custom changes you make.  If
+# you need changes, make a copy of this under another name, and customize
+# that, and use the (left/right)updown parameters in ipsec.conf to make
+# strongSwan use yours instead of this default one.
+
+# things that this script gets (from ipsec_pluto(8) man page)
+#
+#      PLUTO_VERSION
+#              indicates  what  version of this interface is being
+#              used.  This document describes version  1.1.   This
+#              is upwardly compatible with version 1.0.
+#
+#       PLUTO_VERB
+#              specifies the name of the operation to be performed
+#              (prepare-host, prepare-client, up-host, up-client,
+#              down-host, or down-client).  If the address family
+#              for security gateway to security gateway communica-
+#              tions is IPv6, then a suffix of -v6 is added to the
+#              verb.
+#
+#       PLUTO_CONNECTION
+#              is the name of the  connection  for  which  we  are
+#              routing.
+#
+#       PLUTO_NEXT_HOP
+#              is the next hop to which packets bound for the peer
+#              must be sent.
+#
+#       PLUTO_INTERFACE
+#              is the name of the ipsec interface to be used.
+#
+#       PLUTO_REQID
+#              is the requid of the ESP policy
+#
+#       PLUTO_ME
+#              is the IP address of our host.
+#
+#       PLUTO_MY_ID
+#              is the ID of our host.
+#
+#       PLUTO_MY_CLIENT
+#              is the IP address / count of our client subnet.  If
+#              the  client  is  just  the  host,  this will be the
+#              host's own IP address / max (where max  is  32  for
+#              IPv4 and 128 for IPv6).
+#
+#       PLUTO_MY_CLIENT_NET
+#              is the IP address of our client net.  If the client
+#              is just the host, this will be the  host's  own  IP
+#              address.
+#
+#       PLUTO_MY_CLIENT_MASK
+#              is  the  mask for our client net.  If the client is
+#              just the host, this will be 255.255.255.255.
+#
+#       PLUTO_MY_SOURCEIP
+#              if non-empty, then the source address for the route will be
+#              set to this IP address.
+#
+#       PLUTO_MY_PROTOCOL
+#              is the IP protocol that will be transported.
+#
+#       PLUTO_MY_PORT
+#              is  the  UDP/TCP  port  to  which  the IPsec SA  is
+#              restricted on our side.
+#
+#       PLUTO_PEER
+#              is the IP address of our peer.
+#
+#       PLUTO_PEER_ID
+#              is the ID of our peer.
+#
+#       PLUTO_PEER_CA
+#              is the CA which issued the cert of our peer.
+#
+#       PLUTO_PEER_CLIENT
+#              is the IP address / count of the peer's client sub-
+#              net.   If the client is just the peer, this will be
+#              the peer's own IP address / max (where  max  is  32
+#              for IPv4 and 128 for IPv6).
+#
+#       PLUTO_PEER_CLIENT_NET
+#              is the IP address of the peer's client net.  If the
+#              client is just the peer, this will  be  the  peer's
+#              own IP address.
+#
+#       PLUTO_PEER_CLIENT_MASK
+#              is  the  mask  for  the  peer's client net.  If the
+#              client   is   just   the   peer,   this   will   be
+#              255.255.255.255.
+#
+#       PLUTO_PEER_PROTOCOL
+#              is the IP protocol that will be transported.
+#
+#       PLUTO_PEER_PORT
+#              is  the  UDP/TCP  port  to  which  the IPsec SA  is
+#              restricted on the peer side.
+#
+#       PLUTO_XAUTH_ID
+#              is an optional user ID employed by the XAUTH protocol
+#
+#       PLUTO_MARK_IN
+#              is an optional XFRM mark set on the inbound IPsec SA
+#
+#       PLUTO_MARK_OUT
+#              is an optional XFRM mark set on the outbound IPsec SA
+#
+#       PLUTO_ESP_ENC
+#              contains the remote UDP port in the case of ESP_IN_UDP
+#              encapsulation
+#
+
+# define a minimum PATH environment in case it is not set
+PATH="/sbin:/bin:/usr/sbin:/usr/bin:/usr/sbin"
+export PATH
+
+# uncomment to log VPN connections
+VPN_LOGGING=1
+#
+# tag put in front of each log entry:
+TAG=vpn
+#
+# syslog facility and priority used:
+FAC_PRIO=local0.notice
+#
+# to create a special vpn logging file, put the following line into
+# the syslog configuration file /etc/syslog.conf:
+#
+# local0.notice                   -/var/log/vpn
+
+# in order to use source IP routing the Linux kernel options
+# CONFIG_IP_ADVANCED_ROUTER and CONFIG_IP_MULTIPLE_TABLES
+# must be enabled
+#
+# special routing table for sourceip routes
+SOURCEIP_ROUTING_TABLE=220
+#
+# priority of the sourceip routing table
+SOURCEIP_ROUTING_TABLE_PRIO=220
+
+# check interface version
+case "$PLUTO_VERSION" in
+1.[0|1])	# Older Pluto?!?  Play it safe, script may be using new features.
+	echo "$0: obsolete interface version \`$PLUTO_VERSION'," >&2
+	echo "$0: 	called by obsolete Pluto?" >&2
+	exit 2
+	;;
+1.*)	;;
+*)	echo "$0: unknown interface version \`$PLUTO_VERSION'" >&2
+	exit 2
+	;;
+esac
+
+# check parameter(s)
+case "$1:$*" in
+':')			# no parameters
+	;;
+iptables:iptables)	# due to (left/right)firewall; for default script only
+	;;
+custom:*)		# custom parameters (see above CAUTION comment)
+	;;
+*)	echo "$0: unknown parameters \`$*'" >&2
+	exit 2
+	;;
+esac
+
+# utility functions for route manipulation
+# Meddling with this stuff should not be necessary and requires great care.
+uproute() {
+	doroute add
+	ip route flush cache
+}
+downroute() {
+	doroute delete
+	ip route flush cache
+}
+
+addsource() {
+	st=0
+	if ! ip -o route get ${PLUTO_MY_SOURCEIP%/*} | grep -q ^local
+	then
+	    it="ip addr add ${PLUTO_MY_SOURCEIP%/*}/32 dev $PLUTO_INTERFACE"
+	    oops="`eval $it 2>&1`"
+	    st=$?
+	    if test " $oops" = " " -a " $st" != " 0"
+	    then
+		oops="silent error, exit status $st"
+	    fi
+	    if test " $oops" != " " -o " $st" != " 0"
+	    then
+		echo "$0: addsource \`$it' failed ($oops)" >&2
+	    fi
+	fi
+	return $st
+}
+
+doroute() {
+	st=0
+
+	if [ -z "$PLUTO_MY_SOURCEIP" ]
+	then
+	    for dir in /etc/sysconfig /etc/conf.d; do
+		if [ -f "$dir/defaultsource" ]
+		then
+		    . "$dir/defaultsource"
+		fi
+	    done
+
+	    if [ -n "$DEFAULTSOURCE" ]
+	    then
+		PLUTO_MY_SOURCEIP=$DEFAULTSOURCE
+	    fi
+        fi
+
+	if [ -z "$KLIPS" -a -z "$PLUTO_MY_SOURCEIP" ]
+	then
+	    # leave because no route entry is required
+	    return $st
+	fi
+
+	parms1="$PLUTO_PEER_CLIENT"
+
+	if [ -n "$PLUTO_NEXT_HOP" ]
+	then
+	    parms2="via $PLUTO_NEXT_HOP"
+	else
+	    parms2="via $PLUTO_PEER"
+	fi
+	parms2="$parms2 dev $PLUTO_INTERFACE"
+
+	parms3=
+	if [ -n "$PLUTO_MY_SOURCEIP" ]
+	then
+	    if test "$1" = "add"
+	    then
+		addsource
+		if ! ip rule list | grep -q "lookup $SOURCEIP_ROUTING_TABLE"
+		then
+		    ip rule add pref $SOURCEIP_ROUTING_TABLE_PRIO table $SOURCEIP_ROUTING_TABLE
+		fi
+	    fi
+	    parms3="$parms3 src ${PLUTO_MY_SOURCEIP%/*} table $SOURCEIP_ROUTING_TABLE"
+	fi
+
+	case "$PLUTO_PEER_CLIENT_NET/$PLUTO_PEER_CLIENT_MASK" in
+	"0.0.0.0/0.0.0.0")
+		# opportunistic encryption work around
+		# need to provide route that eclipses default, without
+		# replacing it.
+		it="ip route $1 0.0.0.0/1 $parms2 $parms3 &&
+			ip route $1 128.0.0.0/1 $parms2 $parms3"
+		;;
+	*)	it="ip route $1 $parms1 $parms2 $parms3"
+		;;
+	esac
+	oops="`eval $it 2>&1`"
+	st=$?
+	if test " $oops" = " " -a " $st" != " 0"
+	then
+	    oops="silent error, exit status $st"
+	fi
+	if test " $oops" != " " -o " $st" != " 0"
+	then
+	    echo "$0: doroute \`$it' failed ($oops)" >&2
+	fi
+	return $st
+}
+
+# in the presence of KLIPS and ipsecN interfaces do not use IPSEC_POLICY
+if [ `echo "$PLUTO_INTERFACE" | grep "ipsec"` ]
+then
+	KLIPS=1
+	IPSEC_POLICY_IN=""
+	IPSEC_POLICY_OUT=""
+else
+	KLIPS=
+	IPSEC_POLICY="-m policy --pol ipsec --proto esp --reqid $PLUTO_REQID"
+	IPSEC_POLICY_IN="$IPSEC_POLICY --dir in"
+	IPSEC_POLICY_OUT="$IPSEC_POLICY --dir out"
+fi
+
+# is there an inbound mark to be set?
+if [ -n "$PLUTO_MARK_IN" ]
+then
+	if [ -n "$PLUTO_UDP_ENC" ]
+	then
+	    SET_MARK="-p udp --sport $PLUTO_UDP_ENC"
+	else
+		SET_MARK="-p esp"
+	fi
+	SET_MARK="$SET_MARK -s $PLUTO_PEER -j MARK --set-mark $PLUTO_MARK_IN"
+fi
+
+# are there port numbers?
+if [ "$PLUTO_MY_PORT" != 0 ]
+then
+	S_MY_PORT="--sport $PLUTO_MY_PORT"
+	D_MY_PORT="--dport $PLUTO_MY_PORT"
+fi
+if [ "$PLUTO_PEER_PORT" != 0 ]
+then
+	S_PEER_PORT="--sport $PLUTO_PEER_PORT"
+	D_PEER_PORT="--dport $PLUTO_PEER_PORT"
+fi
+
+# resolve octal escape sequences
+PLUTO_MY_ID=`printf "$PLUTO_MY_ID"`
+PLUTO_PEER_ID=`printf "$PLUTO_PEER_ID"`
+
+# the big choice
+case "$PLUTO_VERB:$1" in
+prepare-host:*|prepare-client:*)
+	if [ -z "$KLIPS" -a -z "$PLUTO_MY_SOURCEIP" ]
+	then
+	    # exit because no route will be added,
+	    # so that existing routes can stay
+	    exit 0
+	fi
+
+	# delete possibly-existing route (preliminary to adding a route)
+	case "$PLUTO_PEER_CLIENT_NET/$PLUTO_PEER_CLIENT_MASK" in
+	"0.0.0.0/0.0.0.0")
+		# need to provide route that eclipses default, without
+		# replacing it.
+		parms1="0.0.0.0/1"
+		parms2="128.0.0.0/1"
+		it="ip route delete $parms1 2>&1 ; ip route delete $parms2 2>&1"
+		oops="`ip route delete $parms1 2>&1 ; ip route delete $parms2 2>&1`"
+		;;
+	*)
+		parms="$PLUTO_PEER_CLIENT"
+		it="ip route delete $parms 2>&1"
+		oops="`ip route delete $parms 2>&1`"
+		;;
+	esac
+	status="$?"
+	if test " $oops" = " " -a " $status" != " 0"
+	then
+		oops="silent error, exit status $status"
+	fi
+	case "$oops" in
+	*'RTNETLINK answers: No such process'*)
+		# This is what route (currently -- not documented!) gives
+		# for "could not find such a route".
+		oops=
+		status=0
+		;;
+	esac
+	if test " $oops" != " " -o " $status" != " 0"
+	then
+		echo "$0: \`$it' failed ($oops)" >&2
+	fi
+	exit $status
+	;;
+route-host:*|route-client:*)
+	# connection to me or my client subnet being routed
+	uproute
+	;;
+unroute-host:*|unroute-client:*)
+	# connection to me or my client subnet being unrouted
+	downroute
+	;;
+up-host:)
+	# connection to me coming up
+	# If you are doing a custom version, firewall commands go here.
+	if [ -n "$PLUTO_MARK_IN" ]
+	then
+	    iptables -t mangle -A PREROUTING $SET_MARK
+	fi
+	iptables -I INPUT 1 -i $PLUTO_INTERFACE -p $PLUTO_MY_PROTOCOL \
+	    -s $PLUTO_PEER_CLIENT $S_PEER_PORT \
+	    -d $PLUTO_ME $D_MY_PORT $IPSEC_POLICY_IN -j ACCEPT
+	iptables -I OUTPUT 1 -o $PLUTO_INTERFACE -p $PLUTO_PEER_PROTOCOL \
+	    -s $PLUTO_ME $S_MY_PORT $IPSEC_POLICY_OUT \
+	    -d $PLUTO_PEER_CLIENT $D_PEER_PORT -j ACCEPT
+	#
+	# log IPsec host connection setup
+	if [ $VPN_LOGGING ]
+	then
+	  if [ "$PLUTO_PEER_CLIENT" = "$PLUTO_PEER/32" ]
+	  then
+	    logger -t $TAG -p $FAC_PRIO \
+	      "+ $PLUTO_PEER_ID $PLUTO_PEER -- $PLUTO_ME"
+	  else
+	    logger -t $TAG -p $FAC_PRIO \
+	      "+ $PLUTO_PEER_ID $PLUTO_PEER_CLIENT == $PLUTO_PEER -- $PLUTO_ME"
+	  fi
+	fi
+	;;
+down-host:)
+	# connection to me going down
+	# If you are doing a custom version, firewall commands go here.
+	if [ -n "$PLUTO_MARK_IN" ]
+	then
+	    iptables -t mangle -D PREROUTING $SET_MARK
+	fi
+	iptables -D INPUT -i $PLUTO_INTERFACE -p $PLUTO_MY_PROTOCOL \
+	    -s $PLUTO_PEER_CLIENT $S_PEER_PORT \
+	    -d $PLUTO_ME $D_MY_PORT $IPSEC_POLICY_IN -j ACCEPT
+	iptables -D OUTPUT -o $PLUTO_INTERFACE -p $PLUTO_PEER_PROTOCOL \
+	    -s $PLUTO_ME $S_MY_PORT $IPSEC_POLICY_OUT \
+	    -d $PLUTO_PEER_CLIENT $D_PEER_PORT -j ACCEPT
+	#
+	# log IPsec host connection teardown
+	if [ $VPN_LOGGING ]
+	then
+	  if [ "$PLUTO_PEER_CLIENT" = "$PLUTO_PEER/32" ]
+	  then
+	    logger -t $TAG -p $FAC_PRIO -- \
+	      "- $PLUTO_PEER_ID $PLUTO_PEER -- $PLUTO_ME"
+	  else
+	    logger -t $TAG -p $FAC_PRIO -- \
+	    "- $PLUTO_PEER_ID $PLUTO_PEER_CLIENT == $PLUTO_PEER -- $PLUTO_ME"
+	  fi
+	fi
+	;;
+up-client:)
+	# connection to my client subnet coming up
+	# If you are doing a custom version, firewall commands go here.
+	if [ -n "$PLUTO_MARK_IN" ]
+	then
+	    iptables -t mangle -A PREROUTING $SET_MARK
+	fi
+	if [ "$PLUTO_PEER_CLIENT" != "$PLUTO_MY_SOURCEIP/32" ]
+	then
+	  iptables -I FORWARD 1 -o $PLUTO_INTERFACE -p $PLUTO_PEER_PROTOCOL \
+	      -s $PLUTO_MY_CLIENT $S_MY_PORT \
+	      -d $PLUTO_PEER_CLIENT $D_PEER_PORT $IPSEC_POLICY_OUT -j ACCEPT
+	  iptables -I FORWARD 1 -i $PLUTO_INTERFACE -p $PLUTO_MY_PROTOCOL \
+	      -s $PLUTO_PEER_CLIENT $S_PEER_PORT \
+	      -d $PLUTO_MY_CLIENT $D_MY_PORT $IPSEC_POLICY_IN -j ACCEPT
+	fi
+	#
+	# a virtual IP requires an INPUT and OUTPUT rule on the host
+	# or sometimes host access via the internal IP is needed
+	if [ -n "$PLUTO_MY_SOURCEIP" -o -n "$PLUTO_HOST_ACCESS" ]
+	then
+	  iptables -I INPUT 1 -i $PLUTO_INTERFACE -p $PLUTO_MY_PROTOCOL \
+	      -s $PLUTO_PEER_CLIENT $S_PEER_PORT \
+	      -d $PLUTO_MY_CLIENT $D_MY_PORT $IPSEC_POLICY_IN -j ACCEPT
+	  iptables -I OUTPUT 1 -o $PLUTO_INTERFACE -p $PLUTO_PEER_PROTOCOL \
+	      -s $PLUTO_MY_CLIENT $S_MY_PORT \
+	      -d $PLUTO_PEER_CLIENT $D_PEER_PORT $IPSEC_POLICY_OUT -j ACCEPT
+	fi
+	#
+	# log IPsec client connection setup
+	if [ $VPN_LOGGING ]
+	then
+	  if [ "$PLUTO_PEER_CLIENT" = "$PLUTO_PEER/32" ]
+	  then
+	    logger -t $TAG -p $FAC_PRIO \
+	      "+ $PLUTO_PEER_ID $PLUTO_PEER -- $PLUTO_ME == $PLUTO_MY_CLIENT"
+	  else
+	    logger -t $TAG -p $FAC_PRIO \
+	      "+ $PLUTO_PEER_ID $PLUTO_PEER_CLIENT == $PLUTO_PEER -- $PLUTO_ME == $PLUTO_MY_CLIENT"
+	  fi
+	fi
+	;;
+down-client:)
+	# connection to my client subnet going down
+	# If you are doing a custom version, firewall commands go here.
+	if [ -n "$PLUTO_MARK_IN" ]
+	then
+	    iptables -t mangle -D PREROUTING $SET_MARK
+	fi
+	if [ "$PLUTO_PEER_CLIENT" != "$PLUTO_MY_SOURCEIP/32" ]
+	then
+	  iptables -D FORWARD -o $PLUTO_INTERFACE -p $PLUTO_PEER_PROTOCOL \
+	      -s $PLUTO_MY_CLIENT $S_MY_PORT \
+	      -d $PLUTO_PEER_CLIENT $D_PEER_PORT \
+	         $IPSEC_POLICY_OUT -j ACCEPT
+	  iptables -D FORWARD -i $PLUTO_INTERFACE -p $PLUTO_MY_PROTOCOL \
+	      -s $PLUTO_PEER_CLIENT $S_PEER_PORT \
+	      -d $PLUTO_MY_CLIENT $D_MY_PORT \
+	         $IPSEC_POLICY_IN -j ACCEPT
+	fi
+	#
+	# a virtual IP requires an INPUT and OUTPUT rule on the host
+	# or sometimes host access via the internal IP is needed
+	if [ -n "$PLUTO_MY_SOURCEIP" -o -n "$PLUTO_HOST_ACCESS" ]
+	then
+	  iptables -D INPUT -i $PLUTO_INTERFACE -p $PLUTO_MY_PROTOCOL \
+	      -s $PLUTO_PEER_CLIENT $S_PEER_PORT \
+	      -d $PLUTO_MY_CLIENT $D_MY_PORT \
+	         $IPSEC_POLICY_IN -j ACCEPT
+	  iptables -D OUTPUT -o $PLUTO_INTERFACE -p $PLUTO_PEER_PROTOCOL \
+	      -s $PLUTO_MY_CLIENT $S_MY_PORT \
+	      -d $PLUTO_PEER_CLIENT $D_PEER_PORT \
+	         $IPSEC_POLICY_OUT -j ACCEPT
+	fi
+	#
+	# log IPsec client connection teardown
+	if [ $VPN_LOGGING ]
+	then
+	  if [ "$PLUTO_PEER_CLIENT" = "$PLUTO_PEER/32" ]
+	  then
+	    logger -t $TAG -p $FAC_PRIO -- \
+	      "- $PLUTO_PEER_ID $PLUTO_PEER -- $PLUTO_ME == $PLUTO_MY_CLIENT"
+	  else
+	    logger -t $TAG -p $FAC_PRIO -- \
+	      "- $PLUTO_PEER_ID $PLUTO_PEER_CLIENT == $PLUTO_PEER -- $PLUTO_ME == $PLUTO_MY_CLIENT"
+	  fi
+	fi
+	;;
+*)	echo "$0: unknown verb \`$PLUTO_VERB' or parameter \`$1'" >&2
+	exit 1
+	;;
+esac

testing/tests/ikev2/nat-two-rw-mark/posttest.dat

@@ -1,3 +1,4 @@
+sun::iptables -t mangle -v -n -L PREROUTING
 sun::ipsec stop
 alice::ipsec stop
 venus::ipsec stop

testing/tests/ikev2/nat-two-rw-mark/pretest.dat

@@ -7,9 +7,6 @@ moon::iptables -t nat -A POSTROUTING -o eth0 -s PH_IP_ALICE -p udp --sport 500
 moon::iptables -t nat -A POSTROUTING -o eth0 -s PH_IP_VENUS -p udp --sport 500  -j SNAT --to PH_IP_MOON:520
 moon::iptables -t nat -A POSTROUTING -o eth0 -s PH_IP_ALICE -p udp --sport 4500 -j SNAT --to PH_IP_MOON:4510
 moon::iptables -t nat -A POSTROUTING -o eth0 -s PH_IP_VENUS -p udp --sport 4500 -j SNAT --to PH_IP_MOON:4520
-sun::echo 1 > /proc/sys/net/ipv4/ip_forward
-sun::iptables -t mangle -A PREROUTING -s PH_IP_MOON -p udp --sport 4510 -j MARK --set-mark 10
-sun::iptables -t mangle -A PREROUTING -s PH_IP_MOON -p udp --sport 4520 -j MARK --set-mark 20
 sun::iptables -t nat -A POSTROUTING -o eth1 -m mark --mark 10 -j SNAT --to 10.3.0.10
 sun::iptables -t nat -A POSTROUTING -o eth1 -m mark --mark 20 -j SNAT --to 10.3.0.20
 sun::iptables -t mangle -A PREROUTING -d 10.3.0.10 -j MARK --set-mark 10

testing/tests/ikev2/rw-mark-in-out/description.txt

@@ -0,0 +1,16 @@
+The roadwarriors <b>alice</b> and <b>venus</b> sitting behind the router <b>moon</b> set up
+tunnels to gateway <b>sun</b>. Since both roadwarriors possess the same 10.1.0.0/25 subnet,
+gateway <b>sun</b> uses Source NAT after ESP decryption to map these subnets to 10.3.0.10
+and 10.3.0.20, respectively.
+<p/>
+In order to differentiate between the tunnels to <b>alice</b> and <b>venus</b>, respectively,
+<b>XFRM marks</b> are defined for both the inbound and outbound IPsec SAs and policies using
+the <b>mark_in</b> and <b>mark_out</b> parameters in ipsec.conf.
+<p/>
+<b>iptables -t mangle</b> rules are then used in the PREROUTING chain to mark the traffic to
+and from <b>alice</b> and <b>venus</b>, respectively.
+<p/>
+The iptables script designated by <b>leftupdown=/etc/mark_updown</b> automatically inserts
+inbound mangle rules that mark the inbound ESP packets as well as the IPsec-policy rules
+that let pass the tunneled traffic. In order to test the tunnel, the hosts <b>alice</b>
+and <b>venus</b> ping the client <b>bob</b> behind the gateway <b>sun</b>.

testing/tests/ikev2/rw-mark-in-out/evaltest.dat

@@ -1,15 +1,15 @@
-alice::ipsec statusall::nat-t.*INSTALLED::YES
-venus::ipsec statusall::nat-t.*INSTALLED::YES
+alice::ipsec statusall::home.*INSTALLED::YES
+venus::ipsec statusall::home.*INSTALLED::YES
 sun::ipsec statusall::alice.*ESTABLISHED.*alice@strongswan.org::YES
 sun::ipsec statusall::venus.*ESTABLISHED.*venus.strongswan.org::YES
 sun::ipsec statusall::alice.*10.2.0.0/16 === 10.1.0.0/25::YES
 sun::ipsec statusall::venus.*10.2.0.0/16 === 10.1.0.0/25::YES
 alice::ping -c 1 PH_IP_BOB::64 bytes from PH_IP_BOB: icmp_seq=1::YES
 venus::ping -c 1 PH_IP_BOB::64 bytes from PH_IP_BOB: icmp_seq=1::YES
-moon::tcpdump::IP moon.strongswan.org.4510.* > sun.strongswan.org.ipsec-nat-t: UDP::YES
-moon::tcpdump::IP moon.strongswan.org.4520.* > sun.strongswan.org.ipsec-nat-t: UDP::YES
-moon::tcpdump::IP sun.strongswan.org.ipsec-nat-t > moon.strongswan.org.4510.*: UDP::YES
-moon::tcpdump::IP sun.strongswan.org.ipsec-nat-t > moon.strongswan.org.4520.*: UDP::YES
+moon::tcpdump::IP alice.strongswan.org > sun.strongswan.org: ESP::YES
+moon::tcpdump::IP venus.strongswan.org > sun.strongswan.org: ESP::YES
+moon::tcpdump::IP sun.strongswan.org > alice.strongswan.org: ESP::YES
+moon::tcpdump::IP sun.strongswan.org > venus.strongswan.org: ESP::YES
 bob::tcpdump::10.3.0.10 > bob.strongswan.org: ICMP echo request::YES
 bob::tcpdump::10.3.0.20 > bob.strongswan.org: ICMP echo request::YES
 bob::tcpdump::bob.strongswan.org > 10.3.0.10: ICMP echo reply::YES

testing/tests/ikev2/rw-mark-in-out/hosts/alice/etc/init.d/iptables

@@ -0,0 +1,77 @@
+#!/sbin/runscript
+# Copyright 1999-2004 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+opts="start stop reload"
+
+depend() {
+	before net
+	need logger
+}
+
+start() {
+	ebegin "Starting firewall"
+
+	# default policy is DROP
+	/sbin/iptables -P INPUT DROP
+	/sbin/iptables -P OUTPUT DROP
+	/sbin/iptables -P FORWARD DROP
+
+        # allow ESP 
+        iptables -A INPUT  -i eth0 -p 50 -j ACCEPT
+        iptables -A OUTPUT -o eth0 -p 50 -j ACCEPT
+
+	# allow IKE
+	iptables -A INPUT  -i eth0 -p udp --sport 500 --dport 500 -j ACCEPT
+	iptables -A OUTPUT -o eth0 -p udp --dport 500 --sport 500 -j ACCEPT
+			
+	# allow MOBIKE 
+	iptables -A INPUT  -i eth0 -p udp --sport 4500 --dport 4500 -j ACCEPT
+	iptables -A OUTPUT -o eth0 -p udp --dport 4500 --sport 4500 -j ACCEPT
+
+	# allow crl fetch from winnetou
+	iptables -A INPUT  -i eth0 -p tcp --sport 80 -s PH_IP_WINNETOU -j ACCEPT
+	iptables -A OUTPUT -o eth0 -p tcp --dport 80 -d PH_IP_WINNETOU -j ACCEPT
+
+	# allow ssh
+	iptables -A INPUT  -p tcp --dport 22 -j ACCEPT
+	iptables -A OUTPUT -p tcp --sport 22 -j ACCEPT
+
+	eend $?
+}
+
+stop() {
+	ebegin "Stopping firewall"
+		for a in `cat /proc/net/ip_tables_names`; do
+			/sbin/iptables -F -t $a
+			/sbin/iptables -X -t $a
+	
+			if [ $a == nat ]; then
+				/sbin/iptables -t nat -P PREROUTING ACCEPT
+				/sbin/iptables -t nat -P POSTROUTING ACCEPT
+				/sbin/iptables -t nat -P OUTPUT ACCEPT
+			elif [ $a == mangle ]; then
+				/sbin/iptables -t mangle -P PREROUTING ACCEPT
+				/sbin/iptables -t mangle -P INPUT ACCEPT
+				/sbin/iptables -t mangle -P FORWARD ACCEPT
+				/sbin/iptables -t mangle -P OUTPUT ACCEPT
+				/sbin/iptables -t mangle -P POSTROUTING ACCEPT
+			elif [ $a == filter ]; then
+				/sbin/iptables -t filter -P INPUT ACCEPT
+				/sbin/iptables -t filter -P FORWARD ACCEPT
+				/sbin/iptables -t filter -P OUTPUT ACCEPT
+			fi
+		done
+	eend $?
+}
+
+reload() {
+	ebegin "Flushing firewall"
+		for a in `cat /proc/net/ip_tables_names`; do
+			/sbin/iptables -F -t $a
+			/sbin/iptables -X -t $a
+		done;
+        eend $?
+	start
+}
+

testing/tests/ikev2/rw-mark-in-out/hosts/alice/etc/ipsec.conf

@@ -12,7 +12,7 @@ conn %default
 	keyingtries=1
 	keyexchange=ikev2
 		
-conn nat-t
+conn home 
 	left=%defaultroute
 	leftsubnet=10.1.0.0/25
 	leftcert=aliceCert.pem

testing/tests/ikev2/rw-mark-in-out/hosts/sun/etc/ipsec.conf

@@ -4,7 +4,7 @@ config setup
 	crlcheckinterval=180
 	strictcrlpolicy=no
 	plutostart=no
-	charondebug="knl 2"
+	charondebug="knl 2, chd 3"
 
 conn %default
 	ikelifetime=60m
@@ -32,6 +32,6 @@ conn sun
 	leftcert=sunCert.pem
 	leftid=@sun.strongswan.org
 	leftsubnet=10.2.0.0/16
-	leftfirewall=yes
+	leftupdown=/etc/mark_updown
 	right=%any
 	rightsubnet=0.0.0.0/0

testing/tests/ikev2/rw-mark-in-out/hosts/sun/etc/mark_updown

@@ -0,0 +1,527 @@
+#! /bin/sh
+# updown script setting inbound marks on ESP traffic in the mangle chain
+#
+# Copyright (C) 2003-2004 Nigel Meteringham
+# Copyright (C) 2003-2004 Tuomo Soini
+# Copyright (C) 2002-2004 Michael Richardson
+# Copyright (C) 2005-2010 Andreas Steffen <andreas.steffen@strongswan.org>
+#
+# 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.  See <http://www.fsf.org/copyleft/gpl.txt>.
+#
+# 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.
+
+# CAUTION:  Installing a new version of strongSwan will install a new
+# copy of this script, wiping out any custom changes you make.  If
+# you need changes, make a copy of this under another name, and customize
+# that, and use the (left/right)updown parameters in ipsec.conf to make
+# strongSwan use yours instead of this default one.
+
+# things that this script gets (from ipsec_pluto(8) man page)
+#
+#      PLUTO_VERSION
+#              indicates  what  version of this interface is being
+#              used.  This document describes version  1.1.   This
+#              is upwardly compatible with version 1.0.
+#
+#       PLUTO_VERB
+#              specifies the name of the operation to be performed
+#              (prepare-host, prepare-client, up-host, up-client,
+#              down-host, or down-client).  If the address family
+#              for security gateway to security gateway communica-
+#              tions is IPv6, then a suffix of -v6 is added to the
+#              verb.
+#
+#       PLUTO_CONNECTION
+#              is the name of the  connection  for  which  we  are
+#              routing.
+#
+#       PLUTO_NEXT_HOP
+#              is the next hop to which packets bound for the peer
+#              must be sent.
+#
+#       PLUTO_INTERFACE
+#              is the name of the ipsec interface to be used.
+#
+#       PLUTO_REQID
+#              is the requid of the ESP policy
+#
+#       PLUTO_ME
+#              is the IP address of our host.
+#
+#       PLUTO_MY_ID
+#              is the ID of our host.
+#
+#       PLUTO_MY_CLIENT
+#              is the IP address / count of our client subnet.  If
+#              the  client  is  just  the  host,  this will be the
+#              host's own IP address / max (where max  is  32  for
+#              IPv4 and 128 for IPv6).
+#
+#       PLUTO_MY_CLIENT_NET
+#              is the IP address of our client net.  If the client
+#              is just the host, this will be the  host's  own  IP
+#              address.
+#
+#       PLUTO_MY_CLIENT_MASK
+#              is  the  mask for our client net.  If the client is
+#              just the host, this will be 255.255.255.255.
+#
+#       PLUTO_MY_SOURCEIP
+#              if non-empty, then the source address for the route will be
+#              set to this IP address.
+#
+#       PLUTO_MY_PROTOCOL
+#              is the IP protocol that will be transported.
+#
+#       PLUTO_MY_PORT
+#              is  the  UDP/TCP  port  to  which  the IPsec SA  is
+#              restricted on our side.
+#
+#       PLUTO_PEER
+#              is the IP address of our peer.
+#
+#       PLUTO_PEER_ID
+#              is the ID of our peer.
+#
+#       PLUTO_PEER_CA
+#              is the CA which issued the cert of our peer.
+#
+#       PLUTO_PEER_CLIENT
+#              is the IP address / count of the peer's client sub-
+#              net.   If the client is just the peer, this will be
+#              the peer's own IP address / max (where  max  is  32
+#              for IPv4 and 128 for IPv6).
+#
+#       PLUTO_PEER_CLIENT_NET
+#              is the IP address of the peer's client net.  If the
+#              client is just the peer, this will  be  the  peer's
+#              own IP address.
+#
+#       PLUTO_PEER_CLIENT_MASK
+#              is  the  mask  for  the  peer's client net.  If the
+#              client   is   just   the   peer,   this   will   be
+#              255.255.255.255.
+#
+#       PLUTO_PEER_PROTOCOL
+#              is the IP protocol that will be transported.
+#
+#       PLUTO_PEER_PORT
+#              is  the  UDP/TCP  port  to  which  the IPsec SA  is
+#              restricted on the peer side.
+#
+#       PLUTO_XAUTH_ID
+#              is an optional user ID employed by the XAUTH protocol
+#
+#       PLUTO_MARK_IN
+#              is an optional XFRM mark set on the inbound IPsec SA
+#
+#       PLUTO_MARK_OUT
+#              is an optional XFRM mark set on the outbound IPsec SA
+#
+#       PLUTO_ESP_ENC
+#              contains the remote UDP port in the case of ESP_IN_UDP
+#              encapsulation
+#
+
+# define a minimum PATH environment in case it is not set
+PATH="/sbin:/bin:/usr/sbin:/usr/bin:/usr/sbin"
+export PATH
+
+# uncomment to log VPN connections
+VPN_LOGGING=1
+#
+# tag put in front of each log entry:
+TAG=vpn
+#
+# syslog facility and priority used:
+FAC_PRIO=local0.notice
+#
+# to create a special vpn logging file, put the following line into
+# the syslog configuration file /etc/syslog.conf:
+#
+# local0.notice                   -/var/log/vpn
+
+# in order to use source IP routing the Linux kernel options
+# CONFIG_IP_ADVANCED_ROUTER and CONFIG_IP_MULTIPLE_TABLES
+# must be enabled
+#
+# special routing table for sourceip routes
+SOURCEIP_ROUTING_TABLE=220
+#
+# priority of the sourceip routing table
+SOURCEIP_ROUTING_TABLE_PRIO=220
+
+# check interface version
+case "$PLUTO_VERSION" in
+1.[0|1])	# Older Pluto?!?  Play it safe, script may be using new features.
+	echo "$0: obsolete interface version \`$PLUTO_VERSION'," >&2
+	echo "$0: 	called by obsolete Pluto?" >&2
+	exit 2
+	;;
+1.*)	;;
+*)	echo "$0: unknown interface version \`$PLUTO_VERSION'" >&2
+	exit 2
+	;;
+esac
+
+# check parameter(s)
+case "$1:$*" in
+':')			# no parameters
+	;;
+iptables:iptables)	# due to (left/right)firewall; for default script only
+	;;
+custom:*)		# custom parameters (see above CAUTION comment)
+	;;
+*)	echo "$0: unknown parameters \`$*'" >&2
+	exit 2
+	;;
+esac
+
+# utility functions for route manipulation
+# Meddling with this stuff should not be necessary and requires great care.
+uproute() {
+	doroute add
+	ip route flush cache
+}
+downroute() {
+	doroute delete
+	ip route flush cache
+}
+
+addsource() {
+	st=0
+	if ! ip -o route get ${PLUTO_MY_SOURCEIP%/*} | grep -q ^local
+	then
+	    it="ip addr add ${PLUTO_MY_SOURCEIP%/*}/32 dev $PLUTO_INTERFACE"
+	    oops="`eval $it 2>&1`"
+	    st=$?
+	    if test " $oops" = " " -a " $st" != " 0"
+	    then
+		oops="silent error, exit status $st"
+	    fi
+	    if test " $oops" != " " -o " $st" != " 0"
+	    then
+		echo "$0: addsource \`$it' failed ($oops)" >&2
+	    fi
+	fi
+	return $st
+}
+
+doroute() {
+	st=0
+
+	if [ -z "$PLUTO_MY_SOURCEIP" ]
+	then
+	    for dir in /etc/sysconfig /etc/conf.d; do
+		if [ -f "$dir/defaultsource" ]
+		then
+		    . "$dir/defaultsource"
+		fi
+	    done
+
+	    if [ -n "$DEFAULTSOURCE" ]
+	    then
+		PLUTO_MY_SOURCEIP=$DEFAULTSOURCE
+	    fi
+        fi
+
+	if [ -z "$KLIPS" -a -z "$PLUTO_MY_SOURCEIP" ]
+	then
+	    # leave because no route entry is required
+	    return $st
+	fi
+
+	parms1="$PLUTO_PEER_CLIENT"
+
+	if [ -n "$PLUTO_NEXT_HOP" ]
+	then
+	    parms2="via $PLUTO_NEXT_HOP"
+	else
+	    parms2="via $PLUTO_PEER"
+	fi
+	parms2="$parms2 dev $PLUTO_INTERFACE"
+
+	parms3=
+	if [ -n "$PLUTO_MY_SOURCEIP" ]
+	then
+	    if test "$1" = "add"
+	    then
+		addsource
+		if ! ip rule list | grep -q "lookup $SOURCEIP_ROUTING_TABLE"
+		then
+		    ip rule add pref $SOURCEIP_ROUTING_TABLE_PRIO table $SOURCEIP_ROUTING_TABLE
+		fi
+	    fi
+	    parms3="$parms3 src ${PLUTO_MY_SOURCEIP%/*} table $SOURCEIP_ROUTING_TABLE"
+	fi
+
+	case "$PLUTO_PEER_CLIENT_NET/$PLUTO_PEER_CLIENT_MASK" in
+	"0.0.0.0/0.0.0.0")
+		# opportunistic encryption work around
+		# need to provide route that eclipses default, without
+		# replacing it.
+		it="ip route $1 0.0.0.0/1 $parms2 $parms3 &&
+			ip route $1 128.0.0.0/1 $parms2 $parms3"
+		;;
+	*)	it="ip route $1 $parms1 $parms2 $parms3"
+		;;
+	esac
+	oops="`eval $it 2>&1`"
+	st=$?
+	if test " $oops" = " " -a " $st" != " 0"
+	then
+	    oops="silent error, exit status $st"
+	fi
+	if test " $oops" != " " -o " $st" != " 0"
+	then
+	    echo "$0: doroute \`$it' failed ($oops)" >&2
+	fi
+	return $st
+}
+
+# in the presence of KLIPS and ipsecN interfaces do not use IPSEC_POLICY
+if [ `echo "$PLUTO_INTERFACE" | grep "ipsec"` ]
+then
+	KLIPS=1
+	IPSEC_POLICY_IN=""
+	IPSEC_POLICY_OUT=""
+else
+	KLIPS=
+	IPSEC_POLICY="-m policy --pol ipsec --proto esp --reqid $PLUTO_REQID"
+	IPSEC_POLICY_IN="$IPSEC_POLICY --dir in"
+	IPSEC_POLICY_OUT="$IPSEC_POLICY --dir out"
+fi
+
+# is there an inbound mark to be set?
+if [ -n "$PLUTO_MARK_IN" ]
+then
+	if [ -n "$PLUTO_UDP_ENC" ]
+	then
+	    SET_MARK="-p udp --sport $PLUTO_UDP_ENC"
+	else
+		SET_MARK="-p esp"
+	fi
+	SET_MARK="$SET_MARK -s $PLUTO_PEER -j MARK --set-mark $PLUTO_MARK_IN"
+fi
+
+# are there port numbers?
+if [ "$PLUTO_MY_PORT" != 0 ]
+then
+	S_MY_PORT="--sport $PLUTO_MY_PORT"
+	D_MY_PORT="--dport $PLUTO_MY_PORT"
+fi
+if [ "$PLUTO_PEER_PORT" != 0 ]
+then
+	S_PEER_PORT="--sport $PLUTO_PEER_PORT"
+	D_PEER_PORT="--dport $PLUTO_PEER_PORT"
+fi
+
+# resolve octal escape sequences
+PLUTO_MY_ID=`printf "$PLUTO_MY_ID"`
+PLUTO_PEER_ID=`printf "$PLUTO_PEER_ID"`
+
+# the big choice
+case "$PLUTO_VERB:$1" in
+prepare-host:*|prepare-client:*)
+	if [ -z "$KLIPS" -a -z "$PLUTO_MY_SOURCEIP" ]
+	then
+	    # exit because no route will be added,
+	    # so that existing routes can stay
+	    exit 0
+	fi
+
+	# delete possibly-existing route (preliminary to adding a route)
+	case "$PLUTO_PEER_CLIENT_NET/$PLUTO_PEER_CLIENT_MASK" in
+	"0.0.0.0/0.0.0.0")
+		# need to provide route that eclipses default, without
+		# replacing it.
+		parms1="0.0.0.0/1"
+		parms2="128.0.0.0/1"
+		it="ip route delete $parms1 2>&1 ; ip route delete $parms2 2>&1"
+		oops="`ip route delete $parms1 2>&1 ; ip route delete $parms2 2>&1`"
+		;;
+	*)
+		parms="$PLUTO_PEER_CLIENT"
+		it="ip route delete $parms 2>&1"
+		oops="`ip route delete $parms 2>&1`"
+		;;
+	esac
+	status="$?"
+	if test " $oops" = " " -a " $status" != " 0"
+	then
+		oops="silent error, exit status $status"
+	fi
+	case "$oops" in
+	*'RTNETLINK answers: No such process'*)
+		# This is what route (currently -- not documented!) gives
+		# for "could not find such a route".
+		oops=
+		status=0
+		;;
+	esac
+	if test " $oops" != " " -o " $status" != " 0"
+	then
+		echo "$0: \`$it' failed ($oops)" >&2
+	fi
+	exit $status
+	;;
+route-host:*|route-client:*)
+	# connection to me or my client subnet being routed
+	uproute
+	;;
+unroute-host:*|unroute-client:*)
+	# connection to me or my client subnet being unrouted
+	downroute
+	;;
+up-host:)
+	# connection to me coming up
+	# If you are doing a custom version, firewall commands go here.
+	if [ -n "$PLUTO_MARK_IN" ]
+	then
+	    iptables -t mangle -A PREROUTING $SET_MARK
+	fi
+	iptables -I INPUT 1 -i $PLUTO_INTERFACE -p $PLUTO_MY_PROTOCOL \
+	    -s $PLUTO_PEER_CLIENT $S_PEER_PORT \
+	    -d $PLUTO_ME $D_MY_PORT $IPSEC_POLICY_IN -j ACCEPT
+	iptables -I OUTPUT 1 -o $PLUTO_INTERFACE -p $PLUTO_PEER_PROTOCOL \
+	    -s $PLUTO_ME $S_MY_PORT $IPSEC_POLICY_OUT \
+	    -d $PLUTO_PEER_CLIENT $D_PEER_PORT -j ACCEPT
+	#
+	# log IPsec host connection setup
+	if [ $VPN_LOGGING ]
+	then
+	  if [ "$PLUTO_PEER_CLIENT" = "$PLUTO_PEER/32" ]
+	  then
+	    logger -t $TAG -p $FAC_PRIO \
+	      "+ $PLUTO_PEER_ID $PLUTO_PEER -- $PLUTO_ME"
+	  else
+	    logger -t $TAG -p $FAC_PRIO \
+	      "+ $PLUTO_PEER_ID $PLUTO_PEER_CLIENT == $PLUTO_PEER -- $PLUTO_ME"
+	  fi
+	fi
+	;;
+down-host:)
+	# connection to me going down
+	# If you are doing a custom version, firewall commands go here.
+	if [ -n "$PLUTO_MARK_IN" ]
+	then
+	    iptables -t mangle -D PREROUTING $SET_MARK
+	fi
+	iptables -D INPUT -i $PLUTO_INTERFACE -p $PLUTO_MY_PROTOCOL \
+	    -s $PLUTO_PEER_CLIENT $S_PEER_PORT \
+	    -d $PLUTO_ME $D_MY_PORT $IPSEC_POLICY_IN -j ACCEPT
+	iptables -D OUTPUT -o $PLUTO_INTERFACE -p $PLUTO_PEER_PROTOCOL \
+	    -s $PLUTO_ME $S_MY_PORT $IPSEC_POLICY_OUT \
+	    -d $PLUTO_PEER_CLIENT $D_PEER_PORT -j ACCEPT
+	#
+	# log IPsec host connection teardown
+	if [ $VPN_LOGGING ]
+	then
+	  if [ "$PLUTO_PEER_CLIENT" = "$PLUTO_PEER/32" ]
+	  then
+	    logger -t $TAG -p $FAC_PRIO -- \
+	      "- $PLUTO_PEER_ID $PLUTO_PEER -- $PLUTO_ME"
+	  else
+	    logger -t $TAG -p $FAC_PRIO -- \
+	    "- $PLUTO_PEER_ID $PLUTO_PEER_CLIENT == $PLUTO_PEER -- $PLUTO_ME"
+	  fi
+	fi
+	;;
+up-client:)
+	# connection to my client subnet coming up
+	# If you are doing a custom version, firewall commands go here.
+	if [ -n "$PLUTO_MARK_IN" ]
+	then
+	    iptables -t mangle -A PREROUTING $SET_MARK
+	fi
+	if [ "$PLUTO_PEER_CLIENT" != "$PLUTO_MY_SOURCEIP/32" ]
+	then
+	  iptables -I FORWARD 1 -o $PLUTO_INTERFACE -p $PLUTO_PEER_PROTOCOL \
+	      -s $PLUTO_MY_CLIENT $S_MY_PORT \
+	      -d $PLUTO_PEER_CLIENT $D_PEER_PORT $IPSEC_POLICY_OUT -j ACCEPT
+	  iptables -I FORWARD 1 -i $PLUTO_INTERFACE -p $PLUTO_MY_PROTOCOL \
+	      -s $PLUTO_PEER_CLIENT $S_PEER_PORT \
+	      -d $PLUTO_MY_CLIENT $D_MY_PORT $IPSEC_POLICY_IN -j ACCEPT
+	fi
+	#
+	# a virtual IP requires an INPUT and OUTPUT rule on the host
+	# or sometimes host access via the internal IP is needed
+	if [ -n "$PLUTO_MY_SOURCEIP" -o -n "$PLUTO_HOST_ACCESS" ]
+	then
+	  iptables -I INPUT 1 -i $PLUTO_INTERFACE -p $PLUTO_MY_PROTOCOL \
+	      -s $PLUTO_PEER_CLIENT $S_PEER_PORT \
+	      -d $PLUTO_MY_CLIENT $D_MY_PORT $IPSEC_POLICY_IN -j ACCEPT
+	  iptables -I OUTPUT 1 -o $PLUTO_INTERFACE -p $PLUTO_PEER_PROTOCOL \
+	      -s $PLUTO_MY_CLIENT $S_MY_PORT \
+	      -d $PLUTO_PEER_CLIENT $D_PEER_PORT $IPSEC_POLICY_OUT -j ACCEPT
+	fi
+	#
+	# log IPsec client connection setup
+	if [ $VPN_LOGGING ]
+	then
+	  if [ "$PLUTO_PEER_CLIENT" = "$PLUTO_PEER/32" ]
+	  then
+	    logger -t $TAG -p $FAC_PRIO \
+	      "+ $PLUTO_PEER_ID $PLUTO_PEER -- $PLUTO_ME == $PLUTO_MY_CLIENT"
+	  else
+	    logger -t $TAG -p $FAC_PRIO \
+	      "+ $PLUTO_PEER_ID $PLUTO_PEER_CLIENT == $PLUTO_PEER -- $PLUTO_ME == $PLUTO_MY_CLIENT"
+	  fi
+	fi
+	;;
+down-client:)
+	# connection to my client subnet going down
+	# If you are doing a custom version, firewall commands go here.
+	if [ -n "$PLUTO_MARK_IN" ]
+	then
+	    iptables -t mangle -D PREROUTING $SET_MARK
+	fi
+	if [ "$PLUTO_PEER_CLIENT" != "$PLUTO_MY_SOURCEIP/32" ]
+	then
+	  iptables -D FORWARD -o $PLUTO_INTERFACE -p $PLUTO_PEER_PROTOCOL \
+	      -s $PLUTO_MY_CLIENT $S_MY_PORT \
+	      -d $PLUTO_PEER_CLIENT $D_PEER_PORT \
+	         $IPSEC_POLICY_OUT -j ACCEPT
+	  iptables -D FORWARD -i $PLUTO_INTERFACE -p $PLUTO_MY_PROTOCOL \
+	      -s $PLUTO_PEER_CLIENT $S_PEER_PORT \
+	      -d $PLUTO_MY_CLIENT $D_MY_PORT \
+	         $IPSEC_POLICY_IN -j ACCEPT
+	fi
+	#
+	# a virtual IP requires an INPUT and OUTPUT rule on the host
+	# or sometimes host access via the internal IP is needed
+	if [ -n "$PLUTO_MY_SOURCEIP" -o -n "$PLUTO_HOST_ACCESS" ]
+	then
+	  iptables -D INPUT -i $PLUTO_INTERFACE -p $PLUTO_MY_PROTOCOL \
+	      -s $PLUTO_PEER_CLIENT $S_PEER_PORT \
+	      -d $PLUTO_MY_CLIENT $D_MY_PORT \
+	         $IPSEC_POLICY_IN -j ACCEPT
+	  iptables -D OUTPUT -o $PLUTO_INTERFACE -p $PLUTO_PEER_PROTOCOL \
+	      -s $PLUTO_MY_CLIENT $S_MY_PORT \
+	      -d $PLUTO_PEER_CLIENT $D_PEER_PORT \
+	         $IPSEC_POLICY_OUT -j ACCEPT
+	fi
+	#
+	# log IPsec client connection teardown
+	if [ $VPN_LOGGING ]
+	then
+	  if [ "$PLUTO_PEER_CLIENT" = "$PLUTO_PEER/32" ]
+	  then
+	    logger -t $TAG -p $FAC_PRIO -- \
+	      "- $PLUTO_PEER_ID $PLUTO_PEER -- $PLUTO_ME == $PLUTO_MY_CLIENT"
+	  else
+	    logger -t $TAG -p $FAC_PRIO -- \
+	      "- $PLUTO_PEER_ID $PLUTO_PEER_CLIENT == $PLUTO_PEER -- $PLUTO_ME == $PLUTO_MY_CLIENT"
+	  fi
+	fi
+	;;
+*)	echo "$0: unknown verb \`$PLUTO_VERB' or parameter \`$1'" >&2
+	exit 1
+	;;
+esac

testing/tests/ikev2/rw-mark-in-out/hosts/venus/etc/init.d/iptables

@@ -0,0 +1,77 @@
+#!/sbin/runscript
+# Copyright 1999-2004 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+opts="start stop reload"
+
+depend() {
+	before net
+	need logger
+}
+
+start() {
+	ebegin "Starting firewall"
+
+	# default policy is DROP
+	/sbin/iptables -P INPUT DROP
+	/sbin/iptables -P OUTPUT DROP
+	/sbin/iptables -P FORWARD DROP
+
+        # allow ESP 
+        iptables -A INPUT  -i eth0 -p 50 -j ACCEPT
+        iptables -A OUTPUT -o eth0 -p 50 -j ACCEPT
+
+	# allow IKE
+	iptables -A INPUT  -i eth0 -p udp --sport 500 --dport 500 -j ACCEPT
+	iptables -A OUTPUT -o eth0 -p udp --dport 500 --sport 500 -j ACCEPT
+			
+	# allow MOBIKE 
+	iptables -A INPUT  -i eth0 -p udp --sport 4500 --dport 4500 -j ACCEPT
+	iptables -A OUTPUT -o eth0 -p udp --dport 4500 --sport 4500 -j ACCEPT
+
+	# allow crl fetch from winnetou
+	iptables -A INPUT  -i eth0 -p tcp --sport 80 -s PH_IP_WINNETOU -j ACCEPT
+	iptables -A OUTPUT -o eth0 -p tcp --dport 80 -d PH_IP_WINNETOU -j ACCEPT
+
+	# allow ssh
+	iptables -A INPUT  -p tcp --dport 22 -j ACCEPT
+	iptables -A OUTPUT -p tcp --sport 22 -j ACCEPT
+
+	eend $?
+}
+
+stop() {
+	ebegin "Stopping firewall"
+		for a in `cat /proc/net/ip_tables_names`; do
+			/sbin/iptables -F -t $a
+			/sbin/iptables -X -t $a
+	
+			if [ $a == nat ]; then
+				/sbin/iptables -t nat -P PREROUTING ACCEPT
+				/sbin/iptables -t nat -P POSTROUTING ACCEPT
+				/sbin/iptables -t nat -P OUTPUT ACCEPT
+			elif [ $a == mangle ]; then
+				/sbin/iptables -t mangle -P PREROUTING ACCEPT
+				/sbin/iptables -t mangle -P INPUT ACCEPT
+				/sbin/iptables -t mangle -P FORWARD ACCEPT
+				/sbin/iptables -t mangle -P OUTPUT ACCEPT
+				/sbin/iptables -t mangle -P POSTROUTING ACCEPT
+			elif [ $a == filter ]; then
+				/sbin/iptables -t filter -P INPUT ACCEPT
+				/sbin/iptables -t filter -P FORWARD ACCEPT
+				/sbin/iptables -t filter -P OUTPUT ACCEPT
+			fi
+		done
+	eend $?
+}
+
+reload() {
+	ebegin "Flushing firewall"
+		for a in `cat /proc/net/ip_tables_names`; do
+			/sbin/iptables -F -t $a
+			/sbin/iptables -X -t $a
+		done;
+        eend $?
+	start
+}
+

testing/tests/ikev2/rw-mark-in-out/hosts/venus/etc/ipsec.conf

@@ -12,7 +12,7 @@ conn %default
 	keyingtries=1
 	keyexchange=ikev2
 
-conn nat-t
+conn home 
 	left=%defaultroute
 	leftsubnet=10.1.0.0/25
 	leftcert=venusCert.pem

testing/tests/ikev2/rw-mark-in-out/posttest.dat

@@ -1,9 +1,11 @@
+sun::iptables -t mangle -v -n -L PREROUTING
 sun::ipsec stop
 alice::ipsec stop
 venus::ipsec stop
 alice::/etc/init.d/iptables stop 2> /dev/null
 venus::/etc/init.d/iptables stop 2> /dev/null
 sun::/etc/init.d/iptables stop 2> /dev/null
-moon::iptables -t nat -F
-moon::conntrack -F
+sun::ip route del 10.1.0.0/16 via PH_IP_MOON
 sun::conntrack -F
+moon::iptables -t -nat -F
+moon::conntrack -F

testing/tests/ikev2/rw-mark-in-out/pretest.dat

@@ -0,0 +1,18 @@
+alice::/etc/init.d/iptables start 2> /dev/null
+venus::/etc/init.d/iptables start 2> /dev/null
+sun::/etc/init.d/iptables start 2> /dev/null
+moon::echo 1 > /proc/sys/net/ipv4/ip_forward
+moon::iptables -t nat -A POSTROUTING -o eth0 -s 10.1.0.0/16 -p tcp -j SNAT --to PH_IP_MOON 
+sun::ip route add 10.1.0.0/16 via PH_IP_MOON 
+sun::iptables -t nat -A POSTROUTING -o eth1 -m mark --mark 10 -j SNAT --to 10.3.0.10
+sun::iptables -t nat -A POSTROUTING -o eth1 -m mark --mark 20 -j SNAT --to 10.3.0.20
+sun::iptables -t mangle -A PREROUTING -d 10.3.0.10 -j MARK --set-mark 11
+sun::iptables -t mangle -A PREROUTING -d 10.3.0.20 -j MARK --set-mark 21
+alice::ipsec start
+venus::ipsec start
+sun::ipsec start
+alice::sleep 2 
+alice::ipsec up home 
+venus::sleep 2 
+venus::ipsec up home
+venus::sleep 2