1 # Copyright (C) 2009-2010 OpenWrt.org
3 fw_config_get_redirect
() {
4 [ "${redirect_NAME}" != "$1" ] ||
return
5 fw_config_get_section
"$1" redirect
{ \
18 string proto
"tcpudp" \
20 string target
"DNAT" \
22 [ -n "$redirect_name" ] || redirect_name
=$redirect__name
26 fw_config_get_redirect
"$1"
28 fw_callback pre redirect
30 local fwdchain natchain natopt nataddr natports srcdaddr srcdports
31 if [ "$redirect_target" == "DNAT" ]; then
32 [ -n "$redirect_src" -a -n "$redirect_dest_ip$redirect_dest_port" ] ||
{
33 fw_die
"DNAT redirect ${redirect_name}: needs src and dest_ip or dest_port"
36 fwdchain
="zone_${redirect_src}_forward"
38 natopt
="--to-destination"
39 natchain
="zone_${redirect_src}_prerouting"
40 nataddr
="$redirect_dest_ip"
41 fw_get_port_range natports
"$redirect_dest_port" "-"
43 srcdaddr
="${redirect_src_dip:+$redirect_src_dip/$redirect_src_dip_prefixlen}"
44 fw_get_port_range srcdports
"$redirect_src_dport" ":"
46 list_contains FW_CONNTRACK_ZONES
$redirect_src || \
47 append FW_CONNTRACK_ZONES
$redirect_src
49 elif [ "$redirect_target" == "SNAT" ]; then
50 [ -n "$redirect_dest" -a -n "$redirect_src_dip" ] ||
{
51 fw_die
"SNAT redirect ${redirect_name}: needs dest and src_dip"
54 fwdchain
="${redirect_src:+zone_${redirect_src}_forward}"
57 natchain
="zone_${redirect_dest}_nat"
58 nataddr
="$redirect_src_dip"
59 fw_get_port_range natports
"$redirect_src_dport" "-"
61 srcdaddr
="${redirect_dest_ip:+$redirect_dest_ip/$redirect_dest_ip_prefixlen}"
62 fw_get_port_range srcdports
"$redirect_dest_port" ":"
64 list_contains FW_CONNTRACK_ZONES
$redirect_dest || \
65 append FW_CONNTRACK_ZONES
$redirect_dest
68 fw_die
"redirect ${redirect_name}: target must be either DNAT or SNAT"
72 fw_get_family_mode mode
${redirect_family:-x} ${redirect_src:-$redirect_dest} I
74 local srcaddr
="${redirect_src_ip:+$redirect_src_ip/$redirect_src_ip_prefixlen}"
76 fw_get_port_range srcports
"$redirect_src_port" ":"
78 local destaddr
="${redirect_dest_ip:+$redirect_dest_ip/$redirect_dest_ip_prefixlen}"
80 fw_get_port_range destports
"${redirect_dest_port:-$redirect_src_dport}" ":"
82 [ "$redirect_proto" == "tcpudp" ] && redirect_proto
="tcp udp"
83 for redirect_proto
in $redirect_proto; do
84 fw add
$mode n
$natchain $redirect_target ^
{ $redirect_src_ip $redirect_dest_ip } { \
85 ${redirect_proto:+-p $redirect_proto} \
86 ${srcaddr:+-s $srcaddr} \
87 ${srcports:+--sport $srcports} \
88 ${srcdaddr:+-d $srcdaddr} \
89 ${srcdports:+--dport $srcdports} \
90 ${redirect_src_mac:+-m mac --mac-source $redirect_src_mac} \
91 $natopt $nataddr${natports:+:$natports} \
94 [ -n "$destaddr" ] && \
95 fw add
$mode f
${fwdchain:-forward} ACCEPT ^
{ $redirect_src_ip $redirect_dest_ip } { \
96 ${redirect_proto:+-p $redirect_proto} \
97 ${srcaddr:+-s $srcaddr} \
98 ${srcports:+--sport $srcports} \
99 ${destaddr:+-d $destaddr} \
100 ${destports:+--dport $destports} \
101 ${redirect_src_mac:+-m mac --mac-source $redirect_src_mac} \
105 fw_callback post redirect