mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-13 10:28:26 +02:00
35 lines
1009 B
Bash
Executable File
35 lines
1009 B
Bash
Executable File
#!/bin/sh
|
|
. /etc/functions.sh
|
|
|
|
export WAN=$(nvram get wan_ifname)
|
|
export IPT=/usr/sbin/iptables
|
|
|
|
for T in filter nat mangle ; do
|
|
$IPT -t $T -F
|
|
$IPT -t $T -X
|
|
done
|
|
|
|
# initial rules
|
|
$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 FORWARD -m state --state INVALID -j DROP
|
|
$IPT -t filter -A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT
|
|
|
|
if [ -d /etc/firewall.d ]; then
|
|
for fw in /etc/firewall.d/??*; do
|
|
[ -x $fw ] && $fw
|
|
done
|
|
fi
|
|
|
|
# defaults
|
|
|
|
$IPT -t filter -A INPUT -p icmp -j ACCEPT
|
|
$IPT -t filter -A INPUT -p 47 -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 -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
|