2 # 6in4.sh - IPv6-in-IPv4 tunnel backend
3 # Copyright (c) 2010-2012 OpenWrt.org
5 [ -n "$INCLUDE_ONLY" ] ||
{
7 .
/lib
/functions
/network.sh
15 local link
="6in4-$cfg"
17 local mtu ttl ipaddr peeraddr ip6addr tunnelid username password
18 json_get_vars mtu ttl ipaddr peeraddr ip6addr tunnelid username password
20 [ -z "$ip6addr" -o -z "$peeraddr" ] && {
21 proto_notify_error
"$cfg" "MISSING_ADDRESS"
22 proto_block_restart
"$cfg"
26 ( proto_add_host_dependency
"$cfg" 0.0.0.0 )
30 if ! network_find_wan wanif ||
! network_get_ipaddr ipaddr
"$wanif"; then
31 proto_notify_error
"$cfg" "NO_WAN_LINK"
36 local local6
="${ip6addr%%/*}"
37 local mask6
="${ip6addr##*/}"
38 [[ "$local6" = "$mask6" ]] && mask6
=
40 proto_init_update
"$link" 1
41 proto_add_ipv6_address
"$local6" "$mask6"
42 proto_add_ipv6_route
"::" 0
45 json_add_string mode sit
46 json_add_int mtu
"${mtu:-1280}"
47 json_add_int ttl
"${ttl:-64}"
48 json_add_string
local "$ipaddr"
49 json_add_string remote
"$peeraddr"
52 proto_send_update
"$cfg"
54 [ -n "$tunnelid" -a -n "$username" -a -n "$password" ] && {
55 [ "${#password}" == 32 -a -z "${password//[a-fA-F0-9]/}" ] ||
{
56 password
="$(echo -n "$password" | md5sum)"; password
="${password%% *}"
59 local url
="http://ipv4.tunnelbroker.net/ipv4_end.php?ip=AUTO&apikey=$username&pass=$password&tid=$tunnelid"
63 while [ $
((++try
)) -le $max ]; do
64 wget
-qO/dev
/null
"$url" 2>/dev
/null
&& break
70 proto_6in4_teardown
() {
74 proto_6in4_init_config
() {
78 proto_config_add_string
"ipaddr"
79 proto_config_add_string
"ip6addr"
80 proto_config_add_string
"peeraddr"
81 proto_config_add_string
"tunnelid"
82 proto_config_add_string
"username"
83 proto_config_add_string
"password"
84 proto_config_add_int
"mtu"
85 proto_config_add_int
"ttl"
88 [ -n "$INCLUDE_ONLY" ] ||
{