Forward Firewall: changed order of LOG and DROP rules for INPUT Chain

[people/teissler/ipfire-2.x.git] / src / initscripts / init.d / firewall

diff --git a/src/initscripts/init.d/firewall b/src/initscripts/init.d/firewall
index 18dea0ab859cb176cb7f9cd9aa5f8df4eb81b1be..5a8cfb171e0437c41beda131def6ec2c7eb0e9c0 100644 (file)
--- a/src/initscripts/init.d/firewall
+++ b/src/initscripts/init.d/firewall
@@ -145,18 +145,23 @@ case "$1" in
        /sbin/iptables -A INPUT -j CUSTOMINPUT
        /sbin/iptables -N GUARDIAN
        /sbin/iptables -A INPUT -j GUARDIAN
+       /sbin/iptables -N OVPNBLOCK
+       /sbin/iptables -A FORWARD -j OVPNBLOCK
        /sbin/iptables -A FORWARD -j GUARDIAN
        /sbin/iptables -N CUSTOMFORWARD
        /sbin/iptables -A FORWARD -j CUSTOMFORWARD
        /sbin/iptables -N CUSTOMOUTPUT
+       /sbin/iptables -A OUTPUT -j OVPNBLOCK
        /sbin/iptables -A OUTPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
        /sbin/iptables -A OUTPUT -j CUSTOMOUTPUT
        /sbin/iptables -N OUTGOINGFW
        /sbin/iptables -A OUTPUT -j OUTGOINGFW
        /sbin/iptables -t nat -N CUSTOMPREROUTING
+       /sbin/iptables -t nat -N OVPNNAT
        /sbin/iptables -t nat -A PREROUTING -j CUSTOMPREROUTING
        /sbin/iptables -t nat -N CUSTOMPOSTROUTING
        /sbin/iptables -t nat -A POSTROUTING -j CUSTOMPOSTROUTING
+       /sbin/iptables -t nat -A POSTROUTING -j OVPNNAT
 
        # IPTV chains for IGMPPROXY
        /sbin/iptables -N IPTVINPUT
@@ -164,6 +169,9 @@ case "$1" in
        /sbin/iptables -N IPTVFORWARD
        /sbin/iptables -A FORWARD -j IPTVFORWARD
 
+       # Filtering ovpn networks INPUT
+       /sbin/iptables -A INPUT -j OVPNBLOCK
+
        # filtering from GUI
        /sbin/iptables -N GUIINPUT
        /sbin/iptables -A INPUT -j GUIINPUT
@@ -187,9 +195,7 @@ case "$1" in
        /sbin/iptables -A FORWARD -j IPSECFORWARD
        /sbin/iptables -A FORWARD -j OPENSSLVIRTUAL -m comment --comment "OPENSSLVIRTUAL FORWARD"
        /sbin/iptables -A OUTPUT -j IPSECOUTPUT
-       /sbin/iptables -t nat -N OVPNNAT
        /sbin/iptables -t nat -N IPSECNAT
-       /sbin/iptables -t nat -A POSTROUTING -j OVPNNAT
        /sbin/iptables -t nat -A POSTROUTING -j IPSECNAT
 
        # Input Firewall
@@ -204,13 +210,7 @@ case "$1" in
        /sbin/iptables -A FORWARD -s 127.0.0.0/8 -m state --state NEW -j DROP
        /sbin/iptables -A FORWARD -d 127.0.0.0/8 -m state --state NEW -j DROP
        /sbin/iptables -A INPUT   -i $GREEN_DEV  -m state --state NEW -j ACCEPT ! -p icmp
-       #/sbin/iptables -A FORWARD -i $GREEN_DEV  -m state --state NEW -j ACCEPT
-
-       # If a host on orange tries to initiate a connection to IPFire's red IP and
-       # the connection gets DNATed back through a port forward to a server on orange
-       # we end up with orange -> orange traffic passing through IPFire
-       [ "$ORANGE_DEV" != "" ] && /sbin/iptables -A FORWARD -i $ORANGE_DEV -o $ORANGE_DEV -m state --state NEW -j ACCEPT
-
+       
        # allow DHCP on BLUE to be turned on/off
        /sbin/iptables -N DHCPBLUEINPUT 
        /sbin/iptables -A INPUT -j DHCPBLUEINPUT
@@ -242,20 +242,15 @@ case "$1" in
        /sbin/iptables -t nat -A POSTROUTING -j REDNAT
 
        iptables_red
-       
-       # DMZ pinhole chain.  
-       # ORANGE to talk to GREEN / BLUE.
-       if [ "$ORANGE_DEV" != "" ]; then
-               /sbin/iptables -A FORWARD -i $ORANGE_DEV -m state --state NEW -j FORWARDFW
-       fi
-       
+               
        # Custom prerouting chains (for transparent proxy and port forwarding)
        /sbin/iptables -t nat -N SQUID
        /sbin/iptables -t nat -A PREROUTING -j SQUID
        /sbin/iptables -t nat -N NAT_DESTINATION
        /sbin/iptables -t nat -N NAT_SOURCE
        /sbin/iptables -t nat -A PREROUTING -j NAT_DESTINATION
-       /sbin/iptables -t nat -A POSTROUTING -j NAT_SOURCE
+       /sbin/iptables -t nat -I POSTROUTING 3 -j NAT_SOURCE
+       
        
        
        # upnp chain for our upnp daemon
@@ -265,8 +260,7 @@ case "$1" in
        /sbin/iptables -A FORWARD -m state --state NEW -j UPNPFW
 
        # Postrouting rules (for port forwarding)
-       /sbin/iptables -t nat -A POSTROUTING -m mark --mark 1 -j SNAT \
-        --to-source $GREEN_ADDRESS
+       /sbin/iptables -t nat -A POSTROUTING -m mark --mark 1 -j SNAT --to-source $GREEN_ADDRESS
        if [ "$BLUE_DEV" != "" ]; then
                /sbin/iptables -t nat -A POSTROUTING -m mark --mark 2 -j SNAT --to-source $BLUE_ADDRESS
        fi
@@ -278,13 +272,7 @@ case "$1" in
        if [ -x /etc/sysconfig/firewall.local ]; then
                /etc/sysconfig/firewall.local start
        fi
-       
-       # last rule in input and forward chain is for logging.
 
-       if [ "$DROPINPUT" == "on" ]; then
-               /sbin/iptables -A INPUT -m limit --limit 10/minute -j LOG --log-prefix "DROP_INPUT "
-       fi
-               
        #POLICY CHAIN
        /sbin/iptables -N POLICYIN
        /sbin/iptables -A INPUT -j POLICYIN
@@ -294,7 +282,15 @@ case "$1" in
        /sbin/iptables -A OUTPUT -j POLICYOUT
 
        /usr/sbin/firewall-policy
-       
+
+       if [ "$DROPINPUT" == "on" ]; then
+               /sbin/iptables -A INPUT   -m limit --limit 10/minute -j LOG --log-prefix "DROP_INPUT"
+       fi
+       /sbin/iptables -A INPUT -j DROP -m comment --comment "DROP_INPUT"
+       if [ "$DROPFORWARD" == "on" ]; then
+               /sbin/iptables -A FORWARD -m limit --limit 10/minute -j LOG --log-prefix "DROP_FORWARD"
+       fi
+       /sbin/iptables -A FORWARD -j DROP -m comment --comment "DROP_FORWARD"
        ;;
   startovpn)  
        # run openvpn
@@ -323,14 +319,16 @@ case "$1" in
                /etc/sysconfig/firewall.local stop
        fi
 
+       /sbin/iptables -A INPUT -j DROP -m comment --comment "DROP_INPUT"
+
        if [ "$DROPINPUT" == "on" ]; then
-               /sbin/iptables -A INPUT   -m limit --limit 10/minute -j LOG --log-prefix "DROP_INPUT "
+               /sbin/iptables -A INPUT   -m limit --limit 10/minute -j LOG --log-prefix "DROP_INPUT"
        fi
-       /sbin/iptables -A INPUT -j DROP -m comment --comment "DROP_INPUT"
        if [ "$DROPFORWARD" == "on" ]; then
-               /sbin/iptables -A FORWARD -m limit --limit 10/minute -j LOG --log-prefix "DROP_FORWARD "
+               /sbin/iptables -A FORWARD -m limit --limit 10/minute -j LOG --log-prefix "DROP_FORWARD"
        fi
        /sbin/iptables -A FORWARD -j DROP -m comment --comment "DROP_FORWARD"
+       
        ;;
   stopovpn)
        # stop openvpn