implemented PASS and DROP shunt policies

2011-06-28 19:42:54 +02:00
parent 6a5c8ee7a5
commit f87991704e
38 changed files with 1230 additions and 27 deletions
@@ -0,0 +1,84 @@
+#!/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/ipv4/ip_forward
+	
+	# default policy is DROP
+	/sbin/iptables -P INPUT DROP
+	/sbin/iptables -P OUTPUT DROP
+	/sbin/iptables -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 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
+
+	# allow icmp in local net
+	iptables -A INPUT  -i eth1 -p icmp -j ACCEPT
+	iptables -A OUTPUT -o eth1 -p icmp -j ACCEPT
+
+	eend $?
+}
+
+stop() {
+	ebegin "Stopping firewall"
+		for a in `cat /proc/net/ip_tables_names`; do
+			/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/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/iptables -F -t $a
+			/sbin/iptables -X -t $a
+		done;
+        eend $?
+	start
+}
+
@@ -0,0 +1,43 @@
+# /etc/ipsec.conf - strongSwan IPsec configuration file
+
+config setup
+        crlcheckinterval=180
+	strictcrlpolicy=no
+	plutostart=no
+
+conn %default
+	ikelifetime=60m
+	keylife=20m
+	rekeymargin=3m
+	keyingtries=1
+	keyexchange=ikev2
+	mobike=no
+
+conn local-net
+	leftsubnet=10.1.0.0/16
+	rightsubnet=10.1.0.0/16
+	authby=never
+	type=pass
+	auto=route
+
+conn venus-icmp
+	leftsubnet=10.1.0.20/32
+	rightsubnet=0.0.0.0/0
+	leftprotoport=icmp
+	rightprotoport=icmp
+	leftauth=any
+	rightauth=any	
+	type=drop
+	auto=route
+
+conn net-net 
+	left=PH_IP_MOON
+	leftcert=moonCert.pem
+	[email protected]
+	leftsubnet=10.1.0.0/16
+	leftfirewall=yes
+	lefthostaccess=yes
+	right=PH_IP_SUN
+	[email protected]
+	rightsubnet=0.0.0.0/0
+	auto=add
@@ -0,0 +1,7 @@
+# /etc/strongswan.conf - strongSwan configuration file
+
+charon {
+  load = curl aes des sha1 sha2 md5 pem pkcs1 gmp random x509 revocation hmac xcbc stroke kernel-netlink socket-default updown
+  multiple_authentication = no
+  install_routes = no
+}