immortalwrt/package/lienol/luci-app-ipsec-vpnserver-manyusers/root/usr/share/ipsecvpn/firewall.include
2020-03-03 11:52:46 +08:00

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#!/bin/sh
iptables -D INPUT -p udp -m multiport --dports 500,4500 -m comment --comment "IPSec VPN Server" -j ACCEPT 2> /dev/null
ipsec_nums=$(iptables -t nat -L POSTROUTING 2> /dev/null | grep -c "IPSec VPN Server")
if [ -n "$ipsec_nums" ]; then
until [ "$ipsec_nums" = 0 ]
do
rules=$(iptables -t nat -L POSTROUTING --line-num 2> /dev/null | grep "IPSec VPN Server" |awk '{print $1}')
for rule in $rules
do
iptables -t nat -D POSTROUTING $rule 2> /dev/null
break
done
ipsec_nums=$(expr $ipsec_nums - 1)
done
fi
nums=$(iptables -L forwarding_rule 2> /dev/null | grep -c "IPSec VPN Server")
if [ -n "$nums" ]; then
until [ "$nums" = 0 ]
do
rules=$(iptables -L forwarding_rule --line-num 2> /dev/null | grep "IPSec VPN Server" |awk '{print $1}')
for rule in $rules
do
iptables -D forwarding_rule $rule 2> /dev/null
break
done
nums=$(expr $nums - 1)
done
fi
enable=$(uci -q get ipsec.ipsec.enabled)
if [ -n "$enable" -a "$enable" == 1 ]; then
clientip=$(uci -q get ipsec.ipsec.clientip)
iptables -t nat -I POSTROUTING -s ${clientip%.*}.0/24 -m comment --comment "IPSec VPN Server" -j MASQUERADE
iptables -I forwarding_rule -s ${clientip%.*}.0/24 -m comment --comment "IPSec VPN Server" -j ACCEPT
iptables -I INPUT -p udp -m multiport --dports 500,4500 -m comment --comment "IPSec VPN Server" -j ACCEPT
fi