From 676c017ecfced2e37aeec176f8aa6b9df90024f3 Mon Sep 17 00:00:00 2001 From: nbd Date: Wed, 5 Apr 2006 02:09:22 +0000 Subject: large init script cleanup and merge of whiterussian changes, new dnsmasq config handling git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@3588 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- package/base-files/default/etc/init.d/S45firewall | 96 ----------------------- 1 file changed, 96 deletions(-) delete mode 100755 package/base-files/default/etc/init.d/S45firewall (limited to 'package/base-files/default/etc/init.d/S45firewall') diff --git a/package/base-files/default/etc/init.d/S45firewall b/package/base-files/default/etc/init.d/S45firewall deleted file mode 100755 index 8c67d82b1..000000000 --- a/package/base-files/default/etc/init.d/S45firewall +++ /dev/null @@ -1,96 +0,0 @@ -#!/bin/sh - -## Please make changes in /etc/firewall.user -${FAILSAFE:+exit} - -. /etc/functions.sh -. /etc/network.overrides -[ "$FAILSAFE" != "true" -a -e /etc/config/network ] && . /etc/config/network - -WAN=$(nvram get wan_ifname) -LAN=$(nvram get lan_ifname) - -## CLEAR TABLES -for T in filter nat; do - iptables -t $T -F - iptables -t $T -X -done - -iptables -N input_rule -iptables -N output_rule -iptables -N forwarding_rule - -iptables -t nat -N prerouting_rule -iptables -t nat -N postrouting_rule - -### INPUT -### (connections with the router as destination) - - # base case - 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 --tcp-flags SYN SYN --tcp-option \! 2 -j DROP - - # - # insert accept rule or to jump to new accept-check table here - # - iptables -A INPUT -j input_rule - - # allow - iptables -A INPUT ${WAN:+-i \! $WAN} -j ACCEPT # allow from lan/wifi interfaces - iptables -A INPUT -p icmp -j ACCEPT # allow ICMP - iptables -A INPUT -p gre -j ACCEPT # allow GRE - - # reject (what to do with anything not allowed earlier) - iptables -A INPUT -p tcp -j REJECT --reject-with tcp-reset - iptables -A INPUT -j REJECT --reject-with icmp-port-unreachable - -### OUTPUT -### (connections with the router as source) - - # base case - iptables -P OUTPUT DROP - iptables -A OUTPUT -m state --state INVALID -j DROP - iptables -A OUTPUT -m state --state RELATED,ESTABLISHED -j ACCEPT - - # - # insert accept rule or to jump to new accept-check table here - # - iptables -A OUTPUT -j output_rule - - # allow - iptables -A OUTPUT -j ACCEPT #allow everything out - - # reject (what to do with anything not allowed earlier) - iptables -A OUTPUT -p tcp -j REJECT --reject-with tcp-reset - iptables -A OUTPUT -j REJECT --reject-with icmp-port-unreachable - -### FORWARDING -### (connections routed through the router) - - # base case - iptables -P FORWARD DROP - iptables -A FORWARD -m state --state INVALID -j DROP - iptables -A FORWARD -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu - iptables -A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT - - # - # insert accept rule or to jump to new accept-check table here - # - iptables -A FORWARD -j forwarding_rule - - # allow - iptables -A FORWARD -i br0 -o br0 -j ACCEPT - [ -z "$WAN" ] || iptables -A FORWARD -i $LAN -o $WAN -j ACCEPT - - # reject (what to do with anything not allowed earlier) - # uses the default -P DROP - -### MASQ - iptables -t nat -A PREROUTING -j prerouting_rule - iptables -t nat -A POSTROUTING -j postrouting_rule - [ -z "$WAN" ] || iptables -t nat -A POSTROUTING -o $WAN -j MASQUERADE - -## USER RULES -[ -f /etc/firewall.user ] && . /etc/firewall.user -- cgit v1.2.3