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authormbm <mbm@3c298f89-4303-0410-b956-a3cf2f4a3e73>2004-08-12 05:47:00 +0000
committermbm <mbm@3c298f89-4303-0410-b956-a3cf2f4a3e73>2004-08-12 05:47:00 +0000
commit512afda668386575e4d146d22161ca3afa3af728 (patch)
tree705b07b306a36c583e1d7e3f62dc6701bfd04118 /obsolete-buildroot/sources/openwrt/root/etc/init.d/S45firewall
parent58baf5ad434854d7d3326fa31bf2978b3cede26d (diff)
moved.
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@134 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'obsolete-buildroot/sources/openwrt/root/etc/init.d/S45firewall')
-rwxr-xr-xobsolete-buildroot/sources/openwrt/root/etc/init.d/S45firewall23
1 files changed, 23 insertions, 0 deletions
diff --git a/obsolete-buildroot/sources/openwrt/root/etc/init.d/S45firewall b/obsolete-buildroot/sources/openwrt/root/etc/init.d/S45firewall
new file mode 100755
index 0000000000..4885c7c088
--- /dev/null
+++ b/obsolete-buildroot/sources/openwrt/root/etc/init.d/S45firewall
@@ -0,0 +1,23 @@
+#!/bin/sh
+. /etc/functions.sh
+
+WAN=$(nvram_get wan_ifname)
+
+IPT=/usr/sbin/iptables
+
+for T in filter nat mangle ; do
+ $IPT -t $T -F
+ $IPT -t $T -X
+done
+
+$IPT -t filter -A INPUT -m state --state INVALID -j DROP
+$IPT -t filter -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
+$IPT -t filter -A INPUT -p icmp -j ACCEPT
+$IPT -t filter -A INPUT -i $WAN -p tcp -j REJECT --reject-with tcp-reset
+$IPT -t filter -A INPUT -i $WAN -j REJECT --reject-with icmp-port-unreachable
+$IPT -t filter -A FORWARD -m state --state INVALID -j DROP
+$IPT -t filter -A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT
+$IPT -t filter -A FORWARD -i $WAN -m state --state NEW,INVALID -j DROP
+$IPT -t filter -A FORWARD -o $WAN -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
+
+$IPT -t nat -A POSTROUTING -o $WAN -j MASQUERADE