added ikev1/dpd-restart scenario

testing/tests/ikev1/dpd-restart/description.txt

@@ -0,0 +1,13 @@
+The peer <b>carol</b> and <b>moon</b> both have dynamic IP addresses, so that the remote end
+is defined symbolically by <b>right=%&lt;hostname&gt;</b>. The ipsec starter resolves the
+fully-qualified hostname into the current IP address via a DNS lookup (simulated by an
+/etc/hosts entry). Since the peer IP addresses are expected to change over time, the option
+<b>rightallowany=yes</b> will allow an IKE main mode rekeying to arrive from an arbitrary
+IP address under the condition that the peer identity remains unchanged. When this happens
+the old tunnel is replaced by an IPsec connection to the new origin.
+<p>
+In this scenario <b>moon</b> first initiates a tunnel to <b>carol</b>. After some time
+the responder <b>carol</b> disconnects (simulated by iptables blocking IKE and ESP traffic).
+<b>moon</b> detects via Dead Peer Detection (DPD) that the connection is down and tries to
+reconnect. After a few seconds the firewall is opened again and the connection is 
+reestablished.

testing/tests/ikev1/dpd-restart/evaltest.dat

@@ -0,0 +1,10 @@
+moon::ipsec status::STATE_MAIN_I4 (ISAKMP SA established)::YES
+carol::iptables -I INPUT 1 -i eth0 -s PH_IP_MOON -j DROP::no output expected::NO
+moon::sleep 35::no output expected::NO
+carol::iptables -D INPUT 1::no output expected::NO
+moon::cat /var/log/auth.log::inserting event EVENT_DPD::YES
+moon::cat /var/log/auth.log::DPD: No response from peer - declaring peer dead::YES
+moon::cat /var/log/auth.log::DPD: Terminating all SAs using this connection::YES
+moon::cat /var/log/auth.log::DPD: Restarting connection::YES
+moon::sleep 5::no output expected::NO
+moon::ipsec status::STATE_MAIN_I4 (ISAKMP SA established)::YES

testing/tests/ikev1/dpd-restart/hosts/carol/etc/ipsec.conf

@@ -0,0 +1,25 @@
+# /etc/ipsec.conf - strongSwan IPsec configuration file
+
+config setup
+	plutodebug=control
+	crlcheckinterval=180
+	strictcrlpolicy=no
+	charonstart=no
+
+conn %default
+	ikelifetime=60m
+	keylife=20m
+	rekeymargin=3m
+	keyingtries=1
+
+conn moon 
+	left=%defaultroute
+	leftnexthop=%direct
+	leftsourceip=PH_IP_CAROL1
+	leftcert=carolCert.pem
+	[email protected]
+	leftfirewall=yes
+	right=%moon.strongswan.org
+	rightsubnet=10.1.0.0/16
+	[email protected]
+	auto=add

testing/tests/ikev1/dpd-restart/hosts/moon/etc/ipsec.conf

@@ -0,0 +1,29 @@
+# /etc/ipsec.conf - strongSwan IPsec configuration file
+
+config setup
+	plutodebug=control
+	crlcheckinterval=180
+	strictcrlpolicy=no
+	charonstart=no
+
+conn %default
+	ikelifetime=60m
+	keylife=20m
+	rekeymargin=3m
+	keyingtries=1
+        dpdaction=restart
+        dpddelay=5
+        dpdtimeout=25
+
+conn carol
+	left=%defaultroute
+	leftnexthop=%direct
+	leftsubnet=10.1.0.0/16
+	leftsourceip=PH_IP_MOON1
+	leftcert=moonCert.pem
+	[email protected]
+	leftfirewall=yes
+	right=%carol.strongswan.org
+	[email protected]
+	rightsubnet=PH_IP_CAROL1/32
+	auto=start

testing/tests/ikev1/dpd-restart/posttest.dat

@@ -0,0 +1,5 @@
+carol::ipsec stop
+moon::ipsec stop
+moon::/etc/init.d/iptables stop 2> /dev/null
+carol::/etc/init.d/iptables stop 2> /dev/null
+carol::ip addr del PH_IP_CAROL1/32 dev eth0

testing/tests/ikev1/dpd-restart/pretest.dat

@@ -0,0 +1,5 @@
+moon::/etc/init.d/iptables start 2> /dev/null
+carol::/etc/init.d/iptables start 2> /dev/null
+carol::ipsec start
+moon::ipsec start
+moon::sleep 4

testing/tests/ikev1/dpd-restart/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 carol winnetou dave"
+
+# Corresponding block diagram
+#
+DIAGRAM="a-m-c-w-d.png"
+
+# UML instances on which tcpdump is to be started
+#
+TCPDUMPHOSTS="moon alice"
+
+# UML instances on which IPsec is started
+# Used for IPsec logging purposes
+#
+IPSECHOSTS="moon carol"