added xauth scenarios

testing/tests/ikev1/xauth-psk/pretest.dat

@@ -0,0 +1,12 @@
+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
+moon::rm /etc/ipsec.d/cacerts/*
+carol::rm /etc/ipsec.d/cacerts/*
+dave::rm /etc/ipsec.d/cacerts/*
+moon::ipsec start
+carol::ipsec start
+dave::ipsec start
+carol::sleep 2
+carol::ipsec up home
+dave::ipsec up home