testing: Add ikev2/mobike-virtual-ip-nat scenario
authorTobias Brunner <tobias@strongswan.org>
Fri, 26 Jan 2018 12:50:04 +0000 (13:50 +0100)
committerTobias Brunner <tobias@strongswan.org>
Fri, 9 Feb 2018 10:21:02 +0000 (11:21 +0100)
This tests moving from a public IP behind a NAT and back (with proper
changes of the UDP encapsulation).

testing/tests/ikev2/mobike-virtual-ip-nat/description.txt [new file with mode: 0644]
testing/tests/ikev2/mobike-virtual-ip-nat/evaltest.dat [new file with mode: 0644]
testing/tests/ikev2/mobike-virtual-ip-nat/hosts/alice/etc/ipsec.conf [new file with mode: 0644]
testing/tests/ikev2/mobike-virtual-ip-nat/hosts/alice/etc/iptables.rules [new file with mode: 0644]
testing/tests/ikev2/mobike-virtual-ip-nat/hosts/alice/etc/strongswan.conf [new file with mode: 0644]
testing/tests/ikev2/mobike-virtual-ip-nat/hosts/sun/etc/ipsec.conf [new file with mode: 0644]
testing/tests/ikev2/mobike-virtual-ip-nat/hosts/sun/etc/iptables.rules [new file with mode: 0644]
testing/tests/ikev2/mobike-virtual-ip-nat/hosts/sun/etc/strongswan.conf [new file with mode: 0644]
testing/tests/ikev2/mobike-virtual-ip-nat/posttest.dat [new file with mode: 0644]
testing/tests/ikev2/mobike-virtual-ip-nat/pretest.dat [new file with mode: 0644]
testing/tests/ikev2/mobike-virtual-ip-nat/test.conf [new file with mode: 0644]

diff --git a/testing/tests/ikev2/mobike-virtual-ip-nat/description.txt b/testing/tests/ikev2/mobike-virtual-ip-nat/description.txt
new file mode 100644 (file)
index 0000000..6f1837c
--- /dev/null
@@ -0,0 +1,9 @@
+The roadwarrior <b>alice</b> is sitting behind the NAT router <b>moon</b> but
+at the outset of the scenariou is also directly connected to the 192.168.0.0/24 network
+via an additional <b>eth1</b> interface. <b>alice</b> builds up a tunnel to gateway <b>sun</b>
+in order to reach <b>bob</b> in the subnet behind. When the <b>eth1</b> interface
+goes away, <b>alice</b> switches to <b>eth0</b> and signals the IP address change
+via a MOBIKE ADDRESS_UPDATE notification to peer <b>sun</b>. Later the interface
+comes back up again and because the best path is preferred (charon.prefer_best_path)
+there is another switch to the directly connected path.  <b>alice</b> sets
+a virtual IP of 10.3.0.3, so that the IPsec policies don't have to be changed.
diff --git a/testing/tests/ikev2/mobike-virtual-ip-nat/evaltest.dat b/testing/tests/ikev2/mobike-virtual-ip-nat/evaltest.dat
new file mode 100644 (file)
index 0000000..46df600
--- /dev/null
@@ -0,0 +1,31 @@
+alice::ipsec status 2> /dev/null::mobike.*ESTABLISHED.*192.168.0.50.*PH_IP_SUN::YES
+sun::  ipsec status 2> /dev/null::mobike.*ESTABLISHED.*PH_IP_SUN.*192.168.0.50::YES
+alice::ipsec status 2> /dev/null::mobike.*INSTALLED.*ESP SPIs::YES
+sun::  ipsec status 2> /dev/null::mobike.*INSTALLED.*ESP SPIs::YES
+alice::ipsec statusall 2> /dev/null::10.3.0.3/32 === 10.2.0.0/16::YES
+sun::  ipsec statusall 2> /dev/null::10.2.0.0/16 === 10.3.0.3/32::YES
+alice::ping -c 1 PH_IP_BOB::64 bytes from PH_IP_BOB: icmp_.eq=1::YES
+alice::ifdown eth1::No output expected::NO
+alice::sleep 1::No output expected::NO
+alice::ipsec status 2> /dev/null::mobike.*ESTABLISHED.*PH_IP_ALICE.*PH_IP_SUN::YES
+sun::  ipsec status 2> /dev/null::mobike.*ESTABLISHED.*PH_IP_SUN.*PH_IP_MOON::YES
+alice::ipsec status 2> /dev/null::mobike.*INSTALLED.*ESP in UDP SPIs::YES
+sun::  ipsec status 2> /dev/null::mobike.*INSTALLED.*ESP in UDP SPIs::YES
+alice::ipsec statusall 2> /dev/null::10.3.0.3/32 === 10.2.0.0/16::YES
+sun::  ipsec statusall 2> /dev/null::10.2.0.0/16 === 10.3.0.3/32::YES
+alice::ping -c 1 PH_IP_BOB::64 bytes from PH_IP_BOB: icmp_.eq=1::YES
+alice::ifup eth1::No output expected::NO
+alice::sleep 1::No output expected::NO
+alice::ping -c 1 PH_IP_BOB::64 bytes from PH_IP_BOB: icmp_.eq=1::YES
+alice::ipsec status 2> /dev/null::mobike.*ESTABLISHED.*192.168.0.50.*PH_IP_SUN::YES
+sun::  ipsec status 2> /dev/null::mobike.*ESTABLISHED.*PH_IP_SUN.*192.168.0.50::YES
+alice::ipsec status 2> /dev/null::mobike.*INSTALLED.*ESP SPIs::YES
+sun::  ipsec status 2> /dev/null::mobike.*INSTALLED.*ESP SPIs::YES
+alice::ipsec statusall 2> /dev/null::10.3.0.3/32 === 10.2.0.0/16::YES
+sun::  ipsec statusall 2> /dev/null::10.2.0.0/16 === 10.3.0.3/32::YES
+sun::tcpdump::alice1.strongswan.org.*sun.strongswan.org: ESP.*seq=0x1::YES
+sun::tcpdump::sun.strongswan.org.*alice1.strongswan.org: ESP.*seq=0x1::YES
+moon::tcpdump::moon.strongswan.org.*sun.strongswan.org.*: ESP.*seq=0x2::YES
+moon::tcpdump::sun.strongswan.org.*moon.strongswan.org.*: ESP.*seq=0x2::YES
+bob::tcpdump::10.3.0.3.*bob.strongswan.org.*ICMP echo request::3
+bob::tcpdump::bob.strongswan.org.*10.3.0.3.*ICMP echo reply::3
diff --git a/testing/tests/ikev2/mobike-virtual-ip-nat/hosts/alice/etc/ipsec.conf b/testing/tests/ikev2/mobike-virtual-ip-nat/hosts/alice/etc/ipsec.conf
new file mode 100644 (file)
index 0000000..6039e5f
--- /dev/null
@@ -0,0 +1,19 @@
+# /etc/ipsec.conf - strongSwan IPsec configuration file
+
+config setup
+
+conn %default
+       ikelifetime=60m
+       keylife=20m
+       rekeymargin=3m
+       keyingtries=1
+       keyexchange=ikev2
+
+conn mobike
+       leftsourceip=%config
+       leftcert=aliceCert.pem
+       leftid=alice@strongswan.org
+       right=PH_IP_SUN
+       rightid=@sun.strongswan.org
+       rightsubnet=10.2.0.0/16
+       auto=add
diff --git a/testing/tests/ikev2/mobike-virtual-ip-nat/hosts/alice/etc/iptables.rules b/testing/tests/ikev2/mobike-virtual-ip-nat/hosts/alice/etc/iptables.rules
new file mode 100644 (file)
index 0000000..450e7ce
--- /dev/null
@@ -0,0 +1,42 @@
+*filter
+
+# default policy is DROP
+-P INPUT DROP
+-P OUTPUT DROP
+-P FORWARD DROP
+
+# allow traffic on lo as ifup/ifdown call bind's rndc which accesses TCP 953
+-A OUTPUT -o lo -j ACCEPT
+-A INPUT -i lo -j ACCEPT
+
+# allow IPsec tunnel traffic
+-A INPUT  -m policy --dir in  --pol ipsec --proto esp -j ACCEPT
+-A OUTPUT -m policy --dir out --pol ipsec --proto esp -j ACCEPT
+
+# allow ESP
+-A INPUT  -i eth0 -p 50 -j ACCEPT
+-A INPUT  -i eth1 -p 50 -j ACCEPT
+-A OUTPUT -o eth0 -p 50 -j ACCEPT
+-A OUTPUT -o eth1 -p 50 -j ACCEPT
+
+# allow IKE
+-A INPUT  -i eth0 -p udp --sport 500 --dport 500 -j ACCEPT
+-A INPUT  -i eth1 -p udp --sport 500 --dport 500 -j ACCEPT
+-A OUTPUT -o eth0 -p udp --dport 500 --sport 500 -j ACCEPT
+-A OUTPUT -o eth1 -p udp --dport 500 --sport 500 -j ACCEPT
+
+# allow MobIKE
+-A INPUT  -i eth0 -p udp --sport 4500 --dport 4500 -j ACCEPT
+-A INPUT  -i eth1 -p udp --sport 4500 --dport 4500 -j ACCEPT
+-A OUTPUT -o eth0 -p udp --dport 4500 --sport 4500 -j ACCEPT
+-A OUTPUT -o eth1 -p udp --dport 4500 --sport 4500 -j ACCEPT
+
+# allow ssh
+-A INPUT  -p tcp --dport 22 -j ACCEPT
+-A OUTPUT -p tcp --sport 22 -j ACCEPT
+
+# allow crl fetch from winnetou
+-A INPUT  -p tcp --sport 80 -s PH_IP_WINNETOU -j ACCEPT
+-A OUTPUT -p tcp --dport 80 -d PH_IP_WINNETOU -j ACCEPT
+
+COMMIT
diff --git a/testing/tests/ikev2/mobike-virtual-ip-nat/hosts/alice/etc/strongswan.conf b/testing/tests/ikev2/mobike-virtual-ip-nat/hosts/alice/etc/strongswan.conf
new file mode 100644 (file)
index 0000000..bd51a50
--- /dev/null
@@ -0,0 +1,12 @@
+# /etc/strongswan.conf - strongSwan configuration file
+
+charon {
+  load = random nonce aes sha1 sha2 pem pkcs1 curve25519 gmp x509 curl revocation hmac stroke kernel-netlink socket-default
+  prefer_best_path = yes
+
+  syslog {
+    daemon {
+      knl = 2
+    }
+  }
+}
diff --git a/testing/tests/ikev2/mobike-virtual-ip-nat/hosts/sun/etc/ipsec.conf b/testing/tests/ikev2/mobike-virtual-ip-nat/hosts/sun/etc/ipsec.conf
new file mode 100644 (file)
index 0000000..e187f95
--- /dev/null
@@ -0,0 +1,20 @@
+# /etc/ipsec.conf - strongSwan IPsec configuration file
+
+config setup
+
+conn %default
+       ikelifetime=60m
+       keylife=20m
+       rekeymargin=3m
+       keyingtries=1
+       keyexchange=ikev2
+
+conn mobike
+       left=PH_IP_SUN
+       leftcert=sunCert.pem
+       leftid=@sun.strongswan.org
+       leftsubnet=10.2.0.0/16
+       right=%any
+       rightsourceip=10.3.0.3
+       rightid=alice@strongswan.org
+       auto=add
diff --git a/testing/tests/ikev2/mobike-virtual-ip-nat/hosts/sun/etc/iptables.rules b/testing/tests/ikev2/mobike-virtual-ip-nat/hosts/sun/etc/iptables.rules
new file mode 100644 (file)
index 0000000..929b1b2
--- /dev/null
@@ -0,0 +1,32 @@
+*filter
+
+# default policy is DROP
+-P INPUT DROP
+-P OUTPUT DROP
+-P FORWARD DROP
+
+# allow IPsec tunnel traffic
+-A FORWARD -m policy --dir in  --pol ipsec --proto esp -j ACCEPT
+-A FORWARD -m policy --dir out --pol ipsec --proto esp -j ACCEPT
+
+# allow ESP
+-A INPUT  -i eth0 -p 50 -j ACCEPT
+-A OUTPUT -o eth0 -p 50 -j ACCEPT
+
+# allow IKE
+-A INPUT  -i eth0 -p udp --dport 500 -j ACCEPT
+-A OUTPUT -o eth0 -p udp --sport 500 -j ACCEPT
+
+# allow MobIKE
+-A INPUT  -i eth0 -p udp --dport 4500 -j ACCEPT
+-A OUTPUT -o eth0 -p udp --sport 4500 -j ACCEPT
+
+# allow ssh
+-A INPUT  -p tcp --dport 22 -j ACCEPT
+-A OUTPUT -p tcp --sport 22 -j ACCEPT
+
+# allow crl fetch from winnetou
+-A INPUT  -i eth0 -p tcp --sport 80 -s PH_IP_WINNETOU -j ACCEPT
+-A OUTPUT -o eth0 -p tcp --dport 80 -d PH_IP_WINNETOU -j ACCEPT
+
+COMMIT
diff --git a/testing/tests/ikev2/mobike-virtual-ip-nat/hosts/sun/etc/strongswan.conf b/testing/tests/ikev2/mobike-virtual-ip-nat/hosts/sun/etc/strongswan.conf
new file mode 100644 (file)
index 0000000..9241d28
--- /dev/null
@@ -0,0 +1,11 @@
+# /etc/strongswan.conf - strongSwan configuration file
+
+charon {
+  load = random nonce aes sha1 sha2 pem pkcs1 curve25519 gmp x509 curl revocation hmac stroke kernel-netlink socket-default
+
+  syslog {
+    daemon {
+      knl = 2
+    }
+  }
+}
diff --git a/testing/tests/ikev2/mobike-virtual-ip-nat/posttest.dat b/testing/tests/ikev2/mobike-virtual-ip-nat/posttest.dat
new file mode 100644 (file)
index 0000000..0adb755
--- /dev/null
@@ -0,0 +1,6 @@
+alice::ipsec stop
+sun::ipsec stop
+alice::ifdown eth1
+alice::iptables-restore < /etc/iptables.flush
+sun::iptables-restore < /etc/iptables.flush
+moon::iptables -t nat -F
diff --git a/testing/tests/ikev2/mobike-virtual-ip-nat/pretest.dat b/testing/tests/ikev2/mobike-virtual-ip-nat/pretest.dat
new file mode 100644 (file)
index 0000000..ece8912
--- /dev/null
@@ -0,0 +1,10 @@
+alice::ifup eth1
+alice::iptables-restore < /etc/iptables.rules
+sun::iptables-restore < /etc/iptables.rules
+moon::iptables -t nat -A POSTROUTING -o eth0 -s 10.1.0.0/16 -p udp -j SNAT --to-source PH_IP_MOON:1024-1100
+moon::iptables -t nat -A POSTROUTING -o eth0 -s 10.1.0.0/16 -p tcp -j SNAT --to-source PH_IP_MOON:2000-2100
+alice::ipsec start
+sun::ipsec start
+alice::expect-connection mobike
+sun::expect-connection mobike
+alice::ipsec up mobike
diff --git a/testing/tests/ikev2/mobike-virtual-ip-nat/test.conf b/testing/tests/ikev2/mobike-virtual-ip-nat/test.conf
new file mode 100644 (file)
index 0000000..70c64c5
--- /dev/null
@@ -0,0 +1,21 @@
+#!/bin/bash
+#
+# This configuration file provides information on the
+# guest instances used for this test
+
+# All guest instances that are required for this test
+#
+VIRTHOSTS="alice moon winnetou sun bob"
+
+# Corresponding block diagram
+#
+DIAGRAM="a-m-w-s-b.png"
+
+# Guest instances on which tcpdump is to be started
+#
+TCPDUMPHOSTS="bob moon sun"
+
+# Guest instances on which IPsec is started
+# Used for IPsec logging purposes
+#
+IPSECHOSTS="alice sun"