added multi-level-ca-loop scenario

testing/tests/ikev2/multi-level-ca-loop/description.txt

@@ -0,0 +1,6 @@
+The roadwarrior <b>carol</b>, possessing a certificate issued by the
+Research CA, tries to set up a tunnel to gateway <b>moon</b>.
+The Research CA's certificate is signed by the Sales CA and
+the Sales CA's certificate in turn is signed by the Research CA.
+This leads to an endless trust path loop but which is aborted by
+<b>moon</b> when the path level reaches a depth of 7 iterations.

testing/tests/ikev2/multi-level-ca-loop/evaltest.dat

@@ -0,0 +1,4 @@
+moon::cat /var/log/daemon.log::maximum ca path length of 7 levels exceeded::YES
+moon::cat /var/log/daemon.log::authentication of.*carol@strongswan.org.*failed::YES
+carol::ipsec status::alice.*INSTALLED::NO
+moon::ipsec status::alice.*ESTABLISHED.*carol@strongswan.org::NO

testing/tests/ikev2/multi-level-ca-loop/hosts/carol/etc/ipsec.conf

@@ -0,0 +1,23 @@
+# /etc/ipsec.conf - strongSwan IPsec configuration file
+
+config setup
+	crlcheckinterval=180
+	strictcrlpolicy=yes
+	plutostart=no
+
+conn %default
+	ikelifetime=60m
+	keylife=20m
+	rekeymargin=3m
+	keyingtries=1
+	keyexchange=ikev2
+	left=PH_IP_CAROL
+	leftnexthop=%direct
+	leftcert=carolCert.pem
+	right=PH_IP_MOON
+	rightid=@moon.strongswan.org
+	rightca="C=CH, O=Linux strongSwan, CN=strongSwan Root CA"
+
+conn alice
+	rightsubnet=PH_IP_ALICE/32
+	auto=add

testing/tests/ikev2/multi-level-ca-loop/hosts/carol/etc/ipsec.d/certs/carolCert.pem

@@ -0,0 +1,25 @@
+-----BEGIN CERTIFICATE-----
+MIIELDCCAxSgAwIBAgIBATANBgkqhkiG9w0BAQUFADBRMQswCQYDVQQGEwJDSDEZ
+MBcGA1UEChMQTGludXggc3Ryb25nU3dhbjERMA8GA1UECxMIUmVzZWFyY2gxFDAS
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+MWjwPJs52qVJ3Ph++EF6bw==
+-----END CERTIFICATE-----

testing/tests/ikev2/multi-level-ca-loop/hosts/carol/etc/ipsec.d/private/carolKey.pem

@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
+MIIEogIBAAKCAQEAz6hOJXuUKHUgPjV50NSBSNF1nAQw8EAzXEOqjEnEgmm6DxQi
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+-----END RSA PRIVATE KEY-----

testing/tests/ikev2/multi-level-ca-loop/hosts/carol/etc/ipsec.secrets

@@ -0,0 +1,3 @@
+# /etc/ipsec.secrets - strongSwan IPsec secrets file
+
+: RSA carolKey.pem

testing/tests/ikev2/multi-level-ca-loop/hosts/moon/etc/ipsec.conf

@@ -0,0 +1,23 @@
+# /etc/ipsec.conf - strongSwan IPsec configuration file
+
+config setup
+	crlcheckinterval=180
+	strictcrlpolicy=yes
+	plutostart=no
+
+conn %default
+	ikelifetime=60m
+	keylife=20m
+	rekeymargin=3m
+	keyingtries=1
+	keyexchange=ikev2
+	left=PH_IP_MOON
+	leftnexthop=%direct
+	leftcert=moonCert.pem
+	leftid=@moon.strongswan.org
+
+conn alice
+	leftsubnet=PH_IP_ALICE/32
+	right=%any
+	rightca="C=CH, O=Linux strongSwan, OU=Research, CN=Research CA"
+	auto=add

testing/tests/ikev2/multi-level-ca-loop/hosts/moon/etc/ipsec.d/cacerts/research_by_salesCert.pem

@@ -0,0 +1,24 @@
+-----BEGIN CERTIFICATE-----
+MIID/TCCAuWgAwIBAgIBAjANBgkqhkiG9w0BAQUFADBLMQswCQYDVQQGEwJDSDEZ
+MBcGA1UEChMQTGludXggc3Ryb25nU3dhbjEOMAwGA1UECxMFU2FsZXMxETAPBgNV
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+-----END CERTIFICATE-----

testing/tests/ikev2/multi-level-ca-loop/hosts/moon/etc/ipsec.d/cacerts/sales_by_researchCert.pem

@@ -0,0 +1,24 @@
+-----BEGIN CERTIFICATE-----
+MIIEADCCAuigAwIBAgIBAjANBgkqhkiG9w0BAQUFADBRMQswCQYDVQQGEwJDSDEZ
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+/szZoxwnE2iHtIoMAhfHZpRvOkg=
+-----END CERTIFICATE-----

testing/tests/ikev2/multi-level-ca-loop/posttest.dat

@@ -0,0 +1,4 @@
+moon::ipsec stop
+carol::ipsec stop
+moon::rm /etc/ipsec.d/cacerts/*
+

testing/tests/ikev2/multi-level-ca-loop/pretest.dat

@@ -0,0 +1,6 @@
+moon::echo 1 > /proc/sys/net/ipv4/ip_forward
+moon::rm /etc/ipsec.d/cacerts/strongswanCert.pem
+carol::ipsec start
+moon::ipsec start
+carol::sleep 2
+carol::ipsec up alice

testing/tests/ikev2/multi-level-ca-loop/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.png"
+
+# UML instances on which tcpdump is to be started
+#
+TCPDUMPHOSTS=""
+
+# UML instances on which IPsec is started
+# Used for IPsec logging purposes
+#
+IPSECHOSTS="moon carol"