cleanup login script, change firewall example

[openwrt.git] / openwrt / target / default / target_skeleton / etc / init.d / S45firewall

diff --git a/openwrt/target/default/target_skeleton/etc/init.d/S45firewall b/openwrt/target/default/target_skeleton/etc/init.d/S45firewall
index da9fd55..a506637 100755 (executable)
--- a/openwrt/target/default/target_skeleton/etc/init.d/S45firewall
+++ b/openwrt/target/default/target_skeleton/etc/init.d/S45firewall
@@ -1,7 +1,7 @@
 #!/bin/sh
 . /etc/functions.sh
 #!/bin/sh
 . /etc/functions.sh

-export WAN=$(nvram get wan_ifname)
-export LAN=$(nvram get lan_ifname)
+WAN=$(nvram get wan_ifname)
+LAN=$(nvram get lan_ifname)

 
 ## CLEAR TABLES
 for T in filter nat mangle; do
 
 ## CLEAR TABLES
 for T in filter nat mangle; do


@@ -17,8 +17,8 @@ iptables -t nat -N prerouting_rule
 iptables -t nat -N postrouting_rule
 
 ### Port forwarding
 iptables -t nat -N postrouting_rule
 
 ### Port forwarding

-# iptables -t nat -A prerouting_rule -p tcp --dport 22 -j DNAT --to 192.168.1.2
-# iptables        -A forwarding_rule -p tcp --dport 22 -d 192.168.1.2 -j ACCEPT
+# iptables -t nat -A prerouting_rule -i $WAN -p tcp --dport 22 -j DNAT --to 192.168.1.2
+# iptables        -A forwarding_rule -i $WAN -p tcp --dport 22 -d 192.168.1.2 -j ACCEPT

 
 ### INPUT
 ###  (connections with the router as destination)
 
 ### INPUT
 ###  (connections with the router as destination)


@@ -27,18 +27,18 @@ iptables -t nat -N postrouting_rule
   iptables -P INPUT DROP
   iptables -A INPUT -m state --state INVALID -j DROP
   iptables -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
   iptables -P INPUT DROP
   iptables -A INPUT -m state --state INVALID -j DROP
   iptables -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT

+  iptables -A INPUT -p tcp --syn --tcp-option \! 2 -j  DROP

 
   # allow
 
   # allow

-  iptables -A INPUT -i \! $WAN -j ACCEPT       # allow from lan/wifi interfaces 
-  iptables -A INPUT -p icmp -j ACCEPT          # allow ICMP
-  iptables -A INPUT -p 47 -j ACCEPT            # allow GRE
+  iptables -A INPUT -i \! $WAN -j ACCEPT       # allow from lan/wifi interfaces 
+  iptables -A INPUT -p icmp    -j ACCEPT       # allow ICMP
+  iptables -A INPUT -p gre     -j ACCEPT       # allow GRE

   #
   # insert accept rule or to jump to new accept-check table here
   #
   iptables -A INPUT -j input_rule
 
   # reject (what to do with anything not allowed earlier)
   #
   # insert accept rule or to jump to new accept-check table here
   #
   iptables -A INPUT -j input_rule
 
   # reject (what to do with anything not allowed earlier)

-  iptables -A INPUT -p tcp --syn --tcp-option \! 2 -j  DROP

   iptables -A INPUT -p tcp -j REJECT --reject-with tcp-reset
   iptables -A INPUT -j REJECT --reject-with icmp-port-unreachable
 
   iptables -A INPUT -p tcp -j REJECT --reject-with tcp-reset
   iptables -A INPUT -j REJECT --reject-with icmp-port-unreachable