2 # map.sh - IPv4-in-IPv6 tunnel backend
4 # Author: Steven Barth <cyrus@openwrt.org>
5 # Copyright (c) 2014 cisco Systems, Inc.
7 # This program is free software; you can redistribute it and/or modify
8 # it under the terms of the GNU General Public License version 2
9 # as published by the Free Software Foundation
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 [ -n "$INCLUDE_ONLY" ] ||
{
18 .
/lib
/functions
/network.sh
28 # uncomment for legacy MAP0 mode
31 local type mtu ttl tunlink zone
32 local rule ipaddr ip4prefixlen ip6prefix ip6prefixlen peeraddr ealen psidlen psid offset
33 json_get_vars
type mtu ttl tunlink zone
34 json_get_vars rule ipaddr ip4prefixlen ip6prefix ip6prefixlen peeraddr ealen psidlen psid offset
36 [ -z "$zone" ] && zone
="wan"
37 [ -z "$type" ] && type="map-e"
38 [ -z "$ip4prefixlen" ] && ip4prefixlen
=32
40 ( proto_add_host_dependency
"$cfg" "::" "$tunlink" )
42 if [ -z "$rule" ]; then
43 rule
="type=$type,ipv6prefix=$ip6prefix,prefix6len=$ip6prefixlen,ipv4prefix=$ipaddr,prefix4len=$ip4prefixlen"
44 [ -n "$psid" ] && rule
="$rule,psid=$psid"
45 [ -n "$psidlen" ] && rule
="$rule,psidlen=$psidlen"
46 [ -n "$offset" ] && rule
="$rule,offset=$offset"
47 [ -n "$ealen" ] && rule
="$rule,ealen=$ealen"
48 if [ "$type" = "map-t" ]; then
49 rule
="$rule,dmr=$peeraddr"
51 rule
="$rule,br=$peeraddr"
55 RULE_DATA
=$
(mapcalc
${tunlink:-\*} $rule)
56 if [ "$?" != 0 ]; then
57 proto_notify_error
"$cfg" "INVALID_MAP_RULE"
58 proto_block_restart
"$cfg"
64 if [ -z "$RULE_BMR" ]; then
65 proto_notify_error
"$cfg" "NO_MATCHING_PD"
66 proto_block_restart
"$cfg"
71 if [ "$type" = "lw4o6" -o "$type" = "map-e" ]; then
72 proto_init_update
"$link" 1
73 proto_add_ipv4_address $
(eval "echo \$RULE_${k}_IPV4ADDR") "" "" ""
76 json_add_string mode ipip6
77 json_add_int mtu
"${mtu:-1280}"
78 json_add_int ttl
"${ttl:-64}"
79 json_add_string
local $
(eval "echo \$RULE_${k}_IPV6ADDR")
80 json_add_string remote $
(eval "echo \$RULE_${k}_BR")
81 json_add_string link $
(eval "echo \$RULE_${k}_PD6IFACE")
83 if [ "$type" = "map-e" ]; then
85 for i
in $
(seq $RULE_COUNT); do
86 [ "$(eval "echo \
$RULE_${i}_FMR
")" != 1 ] && continue
87 fmr
="$(eval "echo \
$RULE_${i}_IPV6PREFIX
")/$(eval "echo \
$RULE_${i}_PREFIX6LEN
")"
88 fmr
="$fmr,$(eval "echo \
$RULE_${i}_IPV4PREFIX
")/$(eval "echo \
$RULE_${i}_PREFIX4LEN
")"
89 fmr
="$fmr,$(eval "echo \
$RULE_${i}_EALEN
"),$(eval "echo \
$RULE_${i}_OFFSET
")"
90 json_add_string
"" "$fmr"
96 elif [ "$type" = "map-t" -a -f "/proc/net/nat46/control" ]; then
97 proto_init_update
"$link" 1
99 [ "$LEGACY" = 1 ] && style
="MAP0"
101 echo add
$link > /proc
/net
/nat46
/control
102 local cfgstr
="local.style $style local.v4 $(eval "echo \
$RULE_${k}_IPV4PREFIX
")/$(eval "echo \
$RULE_${k}_PREFIX4LEN
")"
103 cfgstr
="$cfgstr local.v6 $(eval "echo \
$RULE_${k}_IPV6PREFIX
")/$(eval "echo \
$RULE_${k}_PREFIX6LEN
")"
104 cfgstr
="$cfgstr local.ea-len $(eval "echo \
$RULE_${k}_EALEN
") local.psid-offset $(eval "echo \
$RULE_${k}_OFFSET
")"
105 cfgstr
="$cfgstr remote.v4 0.0.0.0/0 remote.v6 $(eval "echo \
$RULE_${k}_DMR
") remote.style RFC6052 remote.ea-len 0 remote.psid-offset 0"
106 echo config
$link $cfgstr > /proc
/net
/nat46
/control
108 for i
in $
(seq $RULE_COUNT); do
109 [ "$(eval "echo \
$RULE_${i}_FMR
")" != 1 ] && continue
110 local cfgstr
="remote.style $style remote.v4 $(eval "echo \
$RULE_${i}_IPV4PREFIX
")/$(eval "echo \
$RULE_${i}_PREFIX4LEN
")"
111 cfgstr
="$cfgstr remote.v6 $(eval "echo \
$RULE_${i}_IPV6PREFIX
")/$(eval "echo \
$RULE_${i}_PREFIX6LEN
")"
112 cfgstr
="$cfgstr remote.ea-len $(eval "echo \
$RULE_${i}_EALEN
") remote.psid-offset $(eval "echo \
$RULE_${i}_OFFSET
")"
113 echo insert
$link $cfgstr > /proc
/net
/nat46
/control
116 proto_notify_error
"$cfg" "UNSUPPORTED_TYPE"
117 proto_block_restart
"$cfg"
120 proto_add_ipv4_route
"0.0.0.0" 0
122 [ "$zone" != "-" ] && json_add_string zone
"$zone"
124 json_add_array firewall
125 if [ -z "$(eval "echo \
$RULE_${k}_PORTSETS
")" ]; then
127 json_add_string
type nat
128 json_add_string target SNAT
129 json_add_string family inet
130 json_add_string snat_ip $
(eval "echo \$RULE_${k}_IPV4ADDR")
133 for portset
in $
(eval "echo \$RULE_${k}_PORTSETS"); do
134 for proto
in icmp tcp udp
; do
136 json_add_string
type nat
137 json_add_string target SNAT
138 json_add_string family inet
139 json_add_string proto
"$proto"
140 json_add_boolean connlimit_ports
1
141 json_add_string snat_ip $
(eval "echo \$RULE_${k}_IPV4ADDR")
142 json_add_string snat_port
"$portset"
147 if [ "$type" = "map-t" ]; then
149 json_add_string
type rule
150 json_add_string family inet6
151 json_add_string proto all
152 json_add_string direction
in
153 json_add_string dest
"$zone"
154 json_add_string src
"$zone"
155 json_add_string src_ip $
(eval "echo \$RULE_${k}_IPV6ADDR")
156 json_add_string target ACCEPT
159 json_add_string
type rule
160 json_add_string family inet6
161 json_add_string proto all
162 json_add_string direction out
163 json_add_string dest
"$zone"
164 json_add_string src
"$zone"
165 json_add_string dest_ip $
(eval "echo \$RULE_${k}_IPV6ADDR")
166 json_add_string target ACCEPT
168 proto_add_ipv6_route $
(eval "echo \$RULE_${k}_IPV6ADDR") 128
173 proto_send_update
"$cfg"
175 if [ "$type" = "lw4o6" -o "$type" = "map-e" ]; then
177 json_add_string name
"${cfg}_local"
178 json_add_string ifname
"@$(eval "echo \
$RULE_${k}_PD6IFACE
")"
179 json_add_string proto
"static"
180 json_add_array ip6addr
181 json_add_string
"" "$(eval "echo \
$RULE_${k}_IPV6ADDR
")"
184 ubus call network add_dynamic
"$(json_dump)"
188 proto_map_teardown
() {
190 ifdown
"${cfg}_local"
193 proto_map_init_config
() {
197 proto_config_add_string
"rule"
198 proto_config_add_string
"ipaddr"
199 proto_config_add_int
"ip4prefixlen"
200 proto_config_add_string
"ip6prefix"
201 proto_config_add_int
"ip6prefixlen"
202 proto_config_add_string
"peeraddr"
203 proto_config_add_int
"psidlen"
204 proto_config_add_int
"psid"
205 proto_config_add_int
"offset"
207 proto_config_add_string
"tunlink"
208 proto_config_add_int
"mtu"
209 proto_config_add_int
"ttl"
210 proto_config_add_string
"zone"
213 [ -n "$INCLUDE_ONLY" ] ||
{