syslog: Listen to network and block access from anywhere but localhost

[people/pmueller/ipfire-2.x.git] / config / firewall / firewall-policy

diff --git a/config/firewall/firewall-policy b/config/firewall/firewall-policy
index 4ba1ace8cec12cee5aab07082e1c8d0cc107a053..078c3c515c31f1f385a2159f83fb5c6c52f5e89f 100755 (executable)
--- a/config/firewall/firewall-policy
+++ b/config/firewall/firewall-policy
@@ -57,8 +57,27 @@ HAVE_OPENVPN="true"
 
 # INPUT
 
+# Drop syslog from anywhere but localhost
+# sysklogd cannot bind to specific interface and therefore we need to
+# block access by adding firewall rules
+case "${FWPOLICY}" in
+       REJECT)
+               iptables -A POLICYIN -p udp --dport 514 -j REJECT --reject-with icmp-host-unreachable
+               ;;
+       *)
+               iptables -A POLICYIN -p udp --dport 514 -j DROP
+               ;;
+esac
+
 # Allow access from GREEN
-iptables -A POLICYIN -i "${GREEN_DEV}" -j ACCEPT
+if [ -n "${GREEN_DEV}" ]; then
+       iptables -A POLICYIN -i "${GREEN_DEV}" -j ACCEPT
+fi
+
+# Allow access from BLUE
+if [ "${HAVE_BLUE}" = "true" ] && [ -n "${BLUE_DEV}" ]; then
+       iptables -A POLICYIN -i "${BLUE_DEV}" -j ACCEPT
+fi
 
 # IPsec INPUT
 case "${HAVE_IPSEC},${POLICY}" in
@@ -114,12 +133,14 @@ case "${POLICY}" in
 
        *)
                # Access from GREEN is granted to everywhere
-               if [ "${IFACE}" = "${GREEN_DEV}" ]; then
-                       # internet via green
-                       # don't check source IP/NET if IFACE is GREEN
-                       iptables -A POLICYFWD -i "${GREEN_DEV}" -j ACCEPT
-               else
-                       iptables -A POLICYFWD -i "${GREEN_DEV}" -s "${GREEN_NETADDRESS}/${GREEN_NETMASK}" -j ACCEPT
+               if [ -n "${GREEN_DEV}" ]; then
+                       if [ "${IFACE}" = "${GREEN_DEV}" ]; then
+                               # internet via green
+                               # don't check source IP/NET if IFACE is GREEN
+                               iptables -A POLICYFWD -i "${GREEN_DEV}" -j ACCEPT
+                       else
+                               iptables -A POLICYFWD -i "${GREEN_DEV}" -s "${GREEN_NETADDRESS}/${GREEN_NETMASK}" -j ACCEPT
+                       fi
                fi
 
                # Grant access for IPsec VPN connections