added net2net-same-nets

testing/tests/ikev2/net2net-same-nets/description.txt

@@ -0,0 +1,15 @@
+A connection between two identical <b>10.0.0.0/14</b> networks behind the gateways <b>moon</b>
+and <b>sun</b> is set up. In order to make network routing work, the subnet behind <b>moon</b>
+sees the subnet behind <b>sun</b> as <b>10.4.0.0/14</b> whereas the subnet behind <b>sun</b>
+sees the subnet behind <b>moon</b> as <b>10.8.0.0/14</b>. The necessary network mappings are
+done on gateway <b>moon</b> using the iptables <b>MARK</b> and <b>NETMAP</b> targets.
+<p/>
+Upon the successful establishment of the IPsec tunnel, on gateway <b>moon</b> the directive
+<b>leftfirewall=yes</b> automatically inserts iptables-based firewall rules that let pass
+the tunneled traffic whereas on gateway <b>sun</b> the script indicated by
+<b>leftupdown=/etc/mark_updown</b> inserts iptables rules that set marks defined in the
+connection definition of <b>ipsec.conf</b> both on the inbound and outbound traffic, create
+the necessary NETMAP operations and forward the tunneled traffic.
+<p/>
+In order to test both tunnel and firewall, client <b>alice</b> behind gateway <b>moon</b>
+pings client <b>bob</b> located behind gateway <b>sun</b>.

testing/tests/ikev2/net2net-same-nets/evaltest.dat

@@ -0,0 +1,7 @@
+moon::ipsec statusall::net-net.*ESTABLISHED::YES
+sun::ipsec statusall::net-net.*ESTABLISHED::YES
+alice::ping -c 1 10.6.0.10::64 bytes from 10.6.0.10: icmp_seq=1::YES
+sun::tcpdump::IP moon.strongswan.org > sun.strongswan.org: ESP::YES
+sun::tcpdump::IP sun.strongswan.org > moon.strongswan.org: ESP::YES
+bob::tcpdump::IP 10.9.0.10 > bob.strongswan.org: ICMP echo request::YES
+bob::tcpdump::IP bob.strongswan.org > 10.9.0.10: ICMP echo reply::YES 

testing/tests/ikev2/net2net-same-nets/hosts/moon/etc/ipsec.conf

@@ -0,0 +1,25 @@
+# /etc/ipsec.conf - strongSwan IPsec configuration file
+
+config setup
+        crlcheckinterval=180
+	strictcrlpolicy=no
+	plutostart=no
+
+conn %default
+	ikelifetime=60m
+	keylife=20m
+	rekeymargin=3m
+	keyingtries=1
+	keyexchange=ikev2
+	mobike=no
+
+conn net-net 
+	left=PH_IP_MOON
+	leftcert=moonCert.pem
+	leftid=@moon.strongswan.org
+	leftsubnet=10.0.0.0/14
+	leftfirewall=yes
+	right=PH_IP_SUN
+	rightid=@sun.strongswan.org
+	rightsubnet=10.4.0.0/14
+	auto=add

testing/tests/ikev2/net2net-same-nets/hosts/moon/etc/strongswan.conf

@@ -0,0 +1,6 @@
+# /etc/strongswan.conf - strongSwan configuration file
+
+charon {
+  load = curl aes des sha1 sha2 md5 pem pkcs1 gmp random x509 revocation hmac xcbc stroke kernel-netlink socket-default updown
+  multiple_authentication = no
+}

testing/tests/ikev2/net2net-same-nets/hosts/sun/etc/ipsec.conf

@@ -0,0 +1,27 @@
+# /etc/ipsec.conf - strongSwan IPsec configuration file
+
+config setup
+        crlcheckinterval=180
+	strictcrlpolicy=no
+	plutostart=no
+
+conn %default
+	ikelifetime=60m
+	keylife=20m
+	rekeymargin=3m
+        keyingtries=1
+	keyexchange=ikev2
+	mobike=no
+
+conn net-net 
+	left=PH_IP_SUN
+	leftcert=sunCert.pem
+	leftid=@sun.strongswan.org
+	leftsubnet=10.4.0.0/14
+	leftupdown=/etc/mark_updown
+	right=PH_IP_MOON
+	rightid=@moon.strongswan.org
+	rightsubnet=10.0.0.0/14
+	mark_in=8
+	mark_out=4
+	auto=add

testing/tests/ikev2/net2net-same-nets/hosts/sun/etc/mark_updown

@@ -0,0 +1,220 @@
+#! /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
+
+# 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
+
+# define NETMAP
+SAME_NET="10.0.0.0/14"
+IN_NET="10.4.0.0/14"
+OUT_NET="10.8.0.0/14"
+
+# define internal interface
+INT_INTERFACE="eth1"
+
+# is there an inbound mark to be set?
+if [ -n "$PLUTO_MARK_IN" ]
+then
+	if [ -n "$PLUTO_UDP_ENC" ]
+	then
+	    SET_MARK_IN="-p udp --sport $PLUTO_UDP_ENC"
+	else
+		SET_MARK_IN="-p esp"
+	fi
+	SET_MARK_IN="$SET_MARK_IN -s $PLUTO_PEER -j MARK --set-mark $PLUTO_MARK_IN"
+fi
+
+# is there an outbound mark to be set?
+if [ -n "$PLUTO_MARK_OUT" ]
+then
+	SET_MARK_OUT="-i $INT_INTERFACE -s $SAME_NET -d $OUT_NET -j MARK --set-mark $PLUTO_MARK_OUT"
+fi
+
+# resolve octal escape sequences
+PLUTO_MY_ID=`printf "$PLUTO_MY_ID"`
+PLUTO_PEER_ID=`printf "$PLUTO_PEER_ID"`
+
+# the big choice
+case "$PLUTO_VERB:$1" in
+up-client:)
+	# connection to my client subnet coming up
+	# If you are doing a custom version, firewall commands go here.
+	if [ -n "$PLUTO_MARK_IN" ]
+	then
+	    iptables -t mangle -A PREROUTING $SET_MARK_IN
+	    iptables -t nat -A PREROUTING -i $PLUTO_INTERFACE -m mark --mark $PLUTO_MARK_IN \
+		     -d $IN_NET -j NETMAP --to $SAME_NET 
+	    iptables -I FORWARD 1 -i $PLUTO_INTERFACE -m mark --mark $PLUTO_MARK_IN -j ACCEPT
+	    iptables -t nat -A POSTROUTING -o $INT_INTERFACE -m mark --mark $PLUTO_MARK_IN \
+	             -s $SAME_NET -j NETMAP --to $OUT_NET 
+	fi
+	if [ -n "$PLUTO_MARK_OUT" ]
+	then
+	    iptables -t mangle -A PREROUTING $SET_MARK_OUT 
+	    iptables -I FORWARD 1 -o $PLUTO_INTERFACE -m mark --mark $PLUTO_MARK_OUT -j ACCEPT
+	fi
+	;;
+down-client:)
+	# connection to my client subnet going down
+	# If you are doing a custom version, firewall commands go here.
+	if [ -n "$PLUTO_MARK_IN" ]
+	then
+	    iptables -t mangle -D PREROUTING $SET_MARK_IN
+	    iptables -t nat -D PREROUTING -i $PLUTO_INTERFACE -m mark --mark $PLUTO_MARK_IN \
+	             -d $IN_NET -j NETMAP --to $SAME_NET 
+	    iptables -D FORWARD -i $PLUTO_INTERFACE -m mark --mark $PLUTO_MARK_IN -j ACCEPT
+	    iptables -t nat -D POSTROUTING -o eth1 -m mark --mark $PLUTO_MARK_IN \
+	             -s $SAME_NET -j NETMAP --to $OUT_NET 
+	fi
+	if [ -n "$PLUTO_MARK_OUT" ]
+	then
+	    iptables -t mangle -D PREROUTING $SET_MARK_OUT
+	    iptables -D FORWARD -o $PLUTO_INTERFACE -m mark --mark $PLUTO_MARK_OUT -j ACCEPT
+	fi
+	;;
+*)	echo "$0: unknown verb \`$PLUTO_VERB' or parameter \`$1'" >&2
+	exit 1
+	;;
+esac

testing/tests/ikev2/net2net-same-nets/hosts/sun/etc/strongswan.conf

@@ -0,0 +1,6 @@
+# /etc/strongswan.conf - strongSwan configuration file
+
+charon {
+  load = curl aes des sha1 sha2 md5 pem pkcs1 gmp random x509 revocation hmac xcbc stroke kernel-netlink socket-default updown
+  multiple_authentication = no
+}

testing/tests/ikev2/net2net-same-nets/posttest.dat

@@ -0,0 +1,7 @@
+sun::iptables -t mangle -n -v -L PREROUTING
+sun::iptables -t nat -n -v -L
+moon::ipsec stop
+sun::ipsec stop
+moon::/etc/init.d/iptables stop 2> /dev/null
+sun::/etc/init.d/iptables stop 2> /dev/null
+sun::conntrack -F

testing/tests/ikev2/net2net-same-nets/pretest.dat

@@ -0,0 +1,6 @@
+moon::/etc/init.d/iptables start 2> /dev/null
+sun::/etc/init.d/iptables start 2> /dev/null
+moon::ipsec start
+sun::ipsec start
+moon::sleep 1 
+moon::ipsec up net-net

testing/tests/ikev2/net2net-same-nets/test.conf

@@ -0,0 +1,21 @@
+#!/bin/bash
+#
+# This configuration file provides information on the
+# UML instances used for this test
+
+# All UML instances that are required for this test
+#
+UMLHOSTS="alice moon winnetou sun bob"
+
+# Corresponding block diagram
+#
+DIAGRAM="a-m-w-s-b.png"
+ 
+# UML instances on which tcpdump is to be started
+#
+TCPDUMPHOSTS="sun bob"
+
+# UML instances on which IPsec is started
+# Used for IPsec logging purposes
+#
+IPSECHOSTS="moon sun"