added ipv6/rw-ip6-in-ip4-ikev2 scenario

14 files changed, 440 insertions, 0 deletions

diff --git a/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/description.txt b/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/description.txt
new file mode 100644
index 000000000..237e6fa52
--- /dev/null
+++ b/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/description.txt
@@ -0,0 +1,10 @@
+The roadwarriors <b>carol</b> and <b>dave</b> set up an IPv6-in-IPv4 tunnel connection each 
+to gateway <b>moon</b>. The authentication is based on <b>X.509 certificates</b>.
+Both <b>carol</b> and <b>dave</b> request a virtual IPv6 address from <b>moon</b> via
+the IKEv2 configuration payload.
+<p/>
+Upon the successful establishment of the ESP tunnels, <b>leftfirewall=yes</b>
+automatically inserts ip6tables-based firewall rules that let pass the tunneled traffic.
+In order to test both tunnel and firewall, both <b>carol</b> and <b>dave</b> send
+an IPv6 ICMP request to the client <b>alice</b> behind the gateway <b>moon</b>
+using the ping6 command.
diff --git a/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/evaltest.dat b/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/evaltest.dat
new file mode 100644
index 000000000..f6dc9aa3e
--- /dev/null
+++ b/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/evaltest.dat
@@ -0,0 +1,15 @@
+carol::ipsec status 2> /dev/null::home.*ESTABLISHED.*carol@strongswan.org.*moon.strongswan.org::YES
+dave:: ipsec status 2> /dev/null::home.*ESTABLISHED.*dave@strongswan.org.*moon.strongswan.org::YES
+moon:: ipsec status 2> /dev/null::rw\[1]: ESTABLISHED.*moon.strongswan.org.*carol@strongswan.org::YES
+moon:: ipsec status 2> /dev/null::rw\[2]: ESTABLISHED.*moon.strongswan.org.*dave@strongswan.org::YES
+carol::ipsec status 2> /dev/null::home.*INSTALLED, TUNNEL::YES
+dave:: ipsec status 2> /dev/null::home.*INSTALLED, TUNNEL::YES
+moon:: ipsec status 2> /dev/null::rw[{]1}.*INSTALLED, TUNNEL::YES
+moon:: ipsec status 2> /dev/null::rw[{]2}.*INSTALLED, TUNNEL::YES
+carol::ping6 -c 1 ip6-alice.strongswan.org::64 bytes from ip6-alice.strongswan.org: icmp_seq=1::YES
+dave:: ping6 -c 1 ip6-alice.strongswan.org::64 bytes from ip6-alice.strongswan.org: icmp_seq=1::YES
+moon::tcpdump::carol.strongswan.org > moon.strongswan.org: ESP::YES
+moon::tcpdump::moon.strongswan.org > carol.strongswan.org: ESP::YES
+moon::tcpdump::dave.strongswan.org > moon.strongswan.org: ESP::YES
+moon::tcpdump::moon.strongswan.org > dave.strongswan.org: ESP::YES
+
diff --git a/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/hosts/carol/etc/init.d/iptables b/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/hosts/carol/etc/init.d/iptables
new file mode 100755
index 000000000..7f904a693
--- /dev/null
+++ b/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/hosts/carol/etc/init.d/iptables
@@ -0,0 +1,96 @@
+#!/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"
+
+	# enable IP forwarding
+	echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
+	echo 1 > /proc/sys/net/ipv4/ip_forward
+	
+	# default policy is DROP
+	/sbin/iptables -P INPUT DROP
+	/sbin/iptables -P OUTPUT DROP
+	/sbin/iptables -P FORWARD DROP
+
+	/sbin/ip6tables -P INPUT DROP
+	/sbin/ip6tables -P OUTPUT DROP
+	/sbin/ip6tables -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 and certificate 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
+
+	# log dropped packets
+	ip6tables -A INPUT  -j LOG --log-prefix " IN: "
+	ip6tables -A OUTPUT -j LOG --log-prefix " OUT: "
+
+	eend $?
+}
+
+stop() {
+	ebegin "Stopping firewall"
+		for a in `cat /proc/net/ip_tables_names`; do
+			/sbin/ip6tables -F -t $a
+			/sbin/ip6tables -X -t $a
+
+			/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/ip6tables -t filter -P INPUT ACCEPT
+				/sbin/ip6tables -t filter -P FORWARD ACCEPT
+				/sbin/ip6tables -t filter -P OUTPUT ACCEPT
+
+				/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/ip6tables -F -t $a
+			/sbin/ip6tables -X -t $a
+		done;
+        eend $?
+	start
+}
+
diff --git a/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/hosts/carol/etc/ipsec.conf b/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/hosts/carol/etc/ipsec.conf
new file mode 100644
index 000000000..1ca1c6c26
--- /dev/null
+++ b/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/hosts/carol/etc/ipsec.conf
@@ -0,0 +1,21 @@
+# /etc/ipsec.conf - strongSwan IPsec configuration file
+
+config setup
+
+conn %default
+	ikelifetime=60m
+	keylife=20m
+	rekeymargin=3m
+	keyingtries=1
+	keyexchange=ikev2
+
+conn home
+	left=PH_IP_CAROL
+	leftcert=carolCert.pem
+	leftid=carol@strongswan.org
+	leftsourceip=%config
+	leftfirewall=yes
+	right=PH_IP_MOON
+	rightid=@moon.strongswan.org
+	rightsubnet=fec1::/16
+	auto=add
diff --git a/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/hosts/carol/etc/strongswan.conf b/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/hosts/carol/etc/strongswan.conf
new file mode 100644
index 000000000..5ef523e47
--- /dev/null
+++ b/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/hosts/carol/etc/strongswan.conf
@@ -0,0 +1,6 @@
+# /etc/strongswan.conf - strongSwan configuration file
+
+charon {
+  hash_and_url = yes
+  load = curl aes des sha1 sha2 md5 pem pkcs1 gmp random nonce x509 revocation hmac stroke kernel-netlink socket-default updown
+}
diff --git a/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/hosts/dave/etc/init.d/iptables b/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/hosts/dave/etc/init.d/iptables
new file mode 100755
index 000000000..7f904a693
--- /dev/null
+++ b/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/hosts/dave/etc/init.d/iptables
@@ -0,0 +1,96 @@
+#!/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"
+
+	# enable IP forwarding
+	echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
+	echo 1 > /proc/sys/net/ipv4/ip_forward
+	
+	# default policy is DROP
+	/sbin/iptables -P INPUT DROP
+	/sbin/iptables -P OUTPUT DROP
+	/sbin/iptables -P FORWARD DROP
+
+	/sbin/ip6tables -P INPUT DROP
+	/sbin/ip6tables -P OUTPUT DROP
+	/sbin/ip6tables -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 and certificate 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
+
+	# log dropped packets
+	ip6tables -A INPUT  -j LOG --log-prefix " IN: "
+	ip6tables -A OUTPUT -j LOG --log-prefix " OUT: "
+
+	eend $?
+}
+
+stop() {
+	ebegin "Stopping firewall"
+		for a in `cat /proc/net/ip_tables_names`; do
+			/sbin/ip6tables -F -t $a
+			/sbin/ip6tables -X -t $a
+
+			/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/ip6tables -t filter -P INPUT ACCEPT
+				/sbin/ip6tables -t filter -P FORWARD ACCEPT
+				/sbin/ip6tables -t filter -P OUTPUT ACCEPT
+
+				/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/ip6tables -F -t $a
+			/sbin/ip6tables -X -t $a
+		done;
+        eend $?
+	start
+}
+
diff --git a/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/hosts/dave/etc/ipsec.conf b/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/hosts/dave/etc/ipsec.conf
new file mode 100644
index 000000000..bba2d96f7
--- /dev/null
+++ b/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/hosts/dave/etc/ipsec.conf
@@ -0,0 +1,21 @@
+# /etc/ipsec.conf - strongSwan IPsec configuration file
+
+config setup
+
+conn %default
+	ikelifetime=60m
+	keylife=20m
+	rekeymargin=3m
+	keyingtries=1
+	keyexchange=ikev2
+
+conn home
+	left=PH_IP_DAVE
+	leftcert=daveCert.pem
+	leftid=dave@strongswan.org
+	leftsourceip=%config
+	leftfirewall=yes
+	right=PH_IP_MOON
+	rightid=@moon.strongswan.org
+	rightsubnet=fec1::/16
+	auto=add
diff --git a/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/hosts/dave/etc/strongswan.conf b/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/hosts/dave/etc/strongswan.conf
new file mode 100644
index 000000000..5ef523e47
--- /dev/null
+++ b/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/hosts/dave/etc/strongswan.conf
@@ -0,0 +1,6 @@
+# /etc/strongswan.conf - strongSwan configuration file
+
+charon {
+  hash_and_url = yes
+  load = curl aes des sha1 sha2 md5 pem pkcs1 gmp random nonce x509 revocation hmac stroke kernel-netlink socket-default updown
+}
diff --git a/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/hosts/moon/etc/init.d/iptables b/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/hosts/moon/etc/init.d/iptables
new file mode 100755
index 000000000..f5bd956ad
--- /dev/null
+++ b/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/hosts/moon/etc/init.d/iptables
@@ -0,0 +1,104 @@
+#!/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"
+
+	# enable IP forwarding
+	echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
+	echo 1 > /proc/sys/net/ipv4/ip_forward
+	
+	# default policy is DROP
+	/sbin/iptables -P INPUT DROP
+	/sbin/iptables -P OUTPUT DROP
+	/sbin/iptables -P FORWARD DROP
+
+	/sbin/ip6tables -P INPUT DROP
+	/sbin/ip6tables -P OUTPUT DROP
+	/sbin/ip6tables -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 ICMPv6 neighbor-solicitations
+	ip6tables -A INPUT  -p icmpv6 --icmpv6-type neighbor-solicitation -j ACCEPT
+	ip6tables -A OUTPUT -p icmpv6 --icmpv6-type neighbor-solicitation -j ACCEPT
+
+	# allow ICMPv6 neighbor-advertisements
+	ip6tables -A INPUT  -p icmpv6 --icmpv6-type neighbor-advertisement -j ACCEPT
+	ip6tables -A OUTPUT -p icmpv6 --icmpv6-type neighbor-advertisement -j ACCEPT
+
+	# allow crl and certificate 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
+
+	# log dropped packets
+	ip6tables -A INPUT  -j LOG --log-prefix " IN: "
+	ip6tables -A OUTPUT -j LOG --log-prefix " OUT: "
+
+	eend $?
+}
+
+stop() {
+	ebegin "Stopping firewall"
+		for a in `cat /proc/net/ip_tables_names`; do
+			/sbin/ip6tables -F -t $a
+			/sbin/ip6tables -X -t $a
+
+			/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/ip6tables -t filter -P INPUT ACCEPT
+				/sbin/ip6tables -t filter -P FORWARD ACCEPT
+				/sbin/ip6tables -t filter -P OUTPUT ACCEPT
+
+				/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/ip6tables -F -t $a
+			/sbin/ip6tables -X -t $a
+		done;
+        eend $?
+	start
+}
+
diff --git a/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/hosts/moon/etc/ipsec.conf b/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/hosts/moon/etc/ipsec.conf
new file mode 100644
index 000000000..5ea245568
--- /dev/null
+++ b/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/hosts/moon/etc/ipsec.conf
@@ -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 rw
+	left=PH_IP_MOON
+	leftcert=moonCert.pem
+	leftid=@moon.strongswan.org
+	leftsubnet=fec1::/16
+	leftfirewall=yes
+	right=%any
+	rightsourceip=fec3::/120
+	auto=add
diff --git a/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/hosts/moon/etc/strongswan.conf b/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/hosts/moon/etc/strongswan.conf
new file mode 100644
index 000000000..5ef523e47
--- /dev/null
+++ b/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/hosts/moon/etc/strongswan.conf
@@ -0,0 +1,6 @@
+# /etc/strongswan.conf - strongSwan configuration file
+
+charon {
+  hash_and_url = yes
+  load = curl aes des sha1 sha2 md5 pem pkcs1 gmp random nonce x509 revocation hmac stroke kernel-netlink socket-default updown
+}
diff --git a/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/posttest.dat b/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/posttest.dat
new file mode 100644
index 000000000..179b8fe58
--- /dev/null
+++ b/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/posttest.dat
@@ -0,0 +1,7 @@
+moon::ipsec stop
+carol::ipsec stop
+dave::ipsec stop
+moon::/etc/init.d/iptables stop 2> /dev/null
+carol::/etc/init.d/iptables stop 2> /dev/null
+dave::/etc/init.d/iptables stop 2> /dev/null
+alice::"ip route del fec3:\:/16 via fec1:\:1"
diff --git a/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/pretest.dat b/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/pretest.dat
new file mode 100644
index 000000000..ca544e373
--- /dev/null
+++ b/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/pretest.dat
@@ -0,0 +1,11 @@
+moon::/etc/init.d/iptables start 2> /dev/null
+carol::/etc/init.d/iptables start 2> /dev/null
+dave::/etc/init.d/iptables start 2> /dev/null
+alice::"ip route add fec3:\:/16 via fec1:\:1"
+moon::ipsec start
+carol::ipsec start
+dave::ipsec start
+carol::sleep 1
+carol::ipsec up home
+dave::ipsec up home
+dave::sleep 2 
diff --git a/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/test.conf b/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/test.conf
new file mode 100644
index 000000000..80cf5e3a1
--- /dev/null
+++ b/testing/tests/ipv6/rw-ip6-in-ip4-ikev2/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-ip6.png"
+
+# UML instances on which tcpdump is to be started
+#
+TCPDUMPHOSTS="moon"
+
+# UML instances on which IPsec is started
+# Used for IPsec logging purposes
+#
+IPSECHOSTS="moon carol dave"