From c9347df0fdbaf30f06232792c276ad4fb4ec92cc Mon Sep 17 00:00:00 2001
From: nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Fri, 1 Jul 2005 15:19:39 +0000
Subject: add firewall script change from whiterussian to head

git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@1305 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 .../default/target_skeleton/etc/init.d/S45firewall | 26 +++++++++++++---------
 1 file changed, 16 insertions(+), 10 deletions(-)

(limited to 'target/default/target_skeleton/etc/init.d')

diff --git a/target/default/target_skeleton/etc/init.d/S45firewall b/target/default/target_skeleton/etc/init.d/S45firewall
index 8f9b9404e..dc429f272 100755
--- a/target/default/target_skeleton/etc/init.d/S45firewall
+++ b/target/default/target_skeleton/etc/init.d/S45firewall
@@ -1,4 +1,7 @@
 #!/bin/sh
+
+## Please make changes in /etc/firewall.user
+
 . /etc/functions.sh
 WAN=$(nvram get wan_ifname)
 LAN=$(nvram get lan_ifname)
@@ -25,15 +28,16 @@ iptables -t nat -N postrouting_rule
   iptables -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
   iptables -A INPUT -p tcp --syn --tcp-option \! 2 -j  DROP
 
-  # 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 gre	-j ACCEPT	# allow GRE
   #
   # insert accept rule or to jump to new accept-check table here
   #
   iptables -A INPUT -j input_rule
 
+  # 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 gre	-j ACCEPT	# allow GRE
+
   # reject (what to do with anything not allowed earlier)
   iptables -A INPUT -p tcp -j REJECT --reject-with tcp-reset
   iptables -A INPUT -j REJECT --reject-with icmp-port-unreachable
@@ -46,13 +50,14 @@ iptables -t nat -N postrouting_rule
   iptables -A OUTPUT -m state --state INVALID -j DROP
   iptables -A OUTPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
 
-  # allow
-  iptables -A OUTPUT -j ACCEPT		#allow everything out
   #
   # insert accept rule or to jump to new accept-check table here
   #
   iptables -A OUTPUT -j output_rule
 
+  # allow
+  iptables -A OUTPUT -j ACCEPT		#allow everything out
+
   # reject (what to do with anything not allowed earlier)
   iptables -A OUTPUT -p tcp -j REJECT --reject-with tcp-reset
   iptables -A OUTPUT -j REJECT --reject-with icmp-port-unreachable
@@ -66,14 +71,15 @@ iptables -t nat -N postrouting_rule
   iptables -A FORWARD -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
   iptables -A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT
 
-  # allow
-  iptables -A FORWARD -i br0 -o br0 -j ACCEPT
-  iptables -A FORWARD -i $LAN -o $WAN -j ACCEPT
   #
   # insert accept rule or to jump to new accept-check table here
   #
   iptables -A FORWARD -j forwarding_rule
 
+  # allow
+  iptables -A FORWARD -i br0 -o br0 -j ACCEPT
+  iptables -A FORWARD -i $LAN -o $WAN -j ACCEPT
+
   # reject (what to do with anything not allowed earlier)
   # uses the default -P DROP
 
@@ -83,4 +89,4 @@ iptables -t nat -N postrouting_rule
   iptables -t nat -A POSTROUTING -o $WAN -j MASQUERADE
 
 ## USER RULES
-. /etc/firewall.user
+[ -f /etc/firewall.user ] && . /etc/firewall.user
-- 
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