mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-26 18:54:37 +02:00
80 lines
1.9 KiB
Plaintext
80 lines
1.9 KiB
Plaintext
|
#!/bin/sh
|
||
|
|
# Setup NAT reflection rules
|
||
|
|
|
||
|
|
. /etc/functions.sh
|
||
|
|
|
||
|
|
if [ "$ACTION" = "ifup" ] && [ "$INTERFACE" = "wan" ]; then
|
||
|
|
local wanip=$(uci -P/var/state get network.wan.ipaddr)
|
||
|
|
|
||
|
|
iptables -t nat -F nat_reflection_in 2>/dev/null || {
|
||
|
|
iptables -t nat -N nat_reflection_in
|
||
|
|
iptables -t nat -A prerouting_rule -j nat_reflection_in
|
||
|
|
}
|
||
|
|
|
||
|
|
iptables -t nat -F nat_reflection_out 2>/dev/null || {
|
||
|
|
iptables -t nat -N nat_reflection_out
|
||
|
|
iptables -t nat -A postrouting_rule -j nat_reflection_out
|
||
|
|
}
|
||
|
|
|
||
|
|
setup_fwd() {
|
||
|
|
local cfg="$1"
|
||
|
|
|
||
|
|
local src
|
||
|
|
config_get src "$cfg" src
|
||
|
|
|
||
|
|
[ "$src" = wan ] && {
|
||
|
|
local dest
|
||
|
|
config_get dest "$cfg" dest "lan"
|
||
|
|
|
||
|
|
local lanip=$(uci -P/var/state get network.$dest.ipaddr)
|
||
|
|
local lanmk=$(uci -P/var/state get network.$dest.netmask)
|
||
|
|
|
||
|
|
local proto
|
||
|
|
config_get proto "$cfg" proto
|
||
|
|
|
||
|
|
local epmin epmax extport
|
||
|
|
config_get extport "$cfg" src_dport
|
||
|
|
[ -n "$extport" ] || return
|
||
|
|
|
||
|
|
epmin="${extport%[-:]*}"; epmax="${extport#*[-:]}"
|
||
|
|
[ "$epmin" != "$epmax" ] || epmax=""
|
||
|
|
|
||
|
|
local ipmin ipmax intport
|
||
|
|
config_get intport "$cfg" dest_port "$extport"
|
||
|
|
|
||
|
|
ipmin="${intport%[-:]*}"; ipmax="${intport#*[-:]}"
|
||
|
|
[ "$ipmin" != "$ipmax" ] || ipmax=""
|
||
|
|
|
||
|
|
local exthost
|
||
|
|
config_get exthost "$cfg" src_dip "$wanip"
|
||
|
|
|
||
|
|
local inthost
|
||
|
|
config_get inthost "$cfg" dest_ip
|
||
|
|
[ -n "$inthost" ] || return
|
||
|
|
|
||
|
|
[ "$proto" = tcpudp ] && proto="tcp udp"
|
||
|
|
|
||
|
|
local p
|
||
|
|
for p in ${proto:-tcp udp}; do
|
||
|
|
case "$p" in
|
||
|
|
tcp|udp)
|
||
|
|
iptables -t nat -A nat_reflection_in \
|
||
|
|
-s $lanip/$lanmk -d $exthost \
|
||
|
|
-p $p --dport $epmin${epmax:+:$epmax} \
|
||
|
|
-j DNAT --to $inthost:$ipmin${ipmax:+-$ipmax}
|
||
|
|
|
||
|
|
iptables -t nat -A nat_reflection_out \
|
||
|
|
-s $lanip/$lanmk -d $inthost \
|
||
|
|
-p $p --dport $ipmin${ipmax:+:$ipmax} \
|
||
|
|
-j SNAT --to-source $lanip
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
done
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
config_load firewall
|
||
|
|
config_foreach setup_fwd redirect
|
||
|
|
fi
|
||
|
|
|