2 # 6in4.sh - IPv6-in-IPv4 tunnel backend
3 # Copyright (c) 2010-2015 OpenWrt.org
5 [ -n "$INCLUDE_ONLY" ] ||
{
7 .
/lib
/functions
/network.sh
15 local link
="6in4-$cfg"
17 local mtu ttl tos ipaddr peeraddr ip6addr ip6prefix tunnelid username password updatekey sourcerouting
18 json_get_vars mtu ttl tos ipaddr peeraddr ip6addr ip6prefix tunnelid username password updatekey sourcerouting
20 [ -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 proto_init_update
"$link" 1
39 [ "$sourcerouting" != "0" ] && source="::/128"
40 proto_add_ipv6_route
"::" 0 "" "" "" "$source"
42 [ -n "$ip6addr" ] && {
43 local local6
="${ip6addr%%/*}"
44 local mask6
="${ip6addr##*/}"
45 [[ "$local6" = "$mask6" ]] && mask6
=
46 proto_add_ipv6_address
"$local6" "$mask6"
47 [ "$sourcerouting" != "0" ] && proto_add_ipv6_route
"::" 0 "" "" "" "$local6/$mask6"
50 [ -n "$ip6prefix" ] && {
51 proto_add_ipv6_prefix
"$ip6prefix"
52 [ "$sourcerouting" != "0" ] && proto_add_ipv6_route
"::" 0 "" "" "" "$ip6prefix"
56 json_add_string mode sit
57 json_add_int mtu
"${mtu:-1280}"
58 json_add_int ttl
"${ttl:-64}"
59 [ -n "$tos" ] && json_add_string tos
"$tos"
60 json_add_string
local "$ipaddr"
61 json_add_string remote
"$peeraddr"
64 proto_send_update
"$cfg"
66 [ -n "$tunnelid" -a -n "$username" -a \
( -n "$password" -o -n "$updatekey" \
) ] && {
67 [ -n "$updatekey" ] && password
="$updatekey"
71 local urlget_opts
="-qO-"
72 local ca_path
="${SSL_CERT_DIR-/etc/ssl/certs}"
74 if [ -n "$(which curl)" ]; then
77 if curl
-V |
grep "Protocols:" |
grep -qF "https"; then
79 urlget_opts
="$urlget_opts --capath $ca_path"
82 if [ "$http" = "http" ] &&
83 wget
--version 2>&1 |
grep -qF "+https"; then
85 urlget_opts
="-qO- --ca-directory=$ca_path"
88 [ "$http" = "https" -a -z "$(find $ca_path -name "*.0" 2>/dev/null)" ] && {
89 if [ "$urlget" = "curl" ]; then
90 urlget_opts
="$urlget_opts -k"
92 urlget_opts
="$urlget_opts --no-check-certificate"
96 local url
="$http://ipv4.tunnelbroker.net/nic/update?username=$username&password=$password&hostname=$tunnelid"
100 while [ $
((++try
)) -le $max ]; do
101 ( exec $urlget $urlget_opts "$url" | logger
-t "$link" ) &
103 ( sleep 20; kill $pid 2>/dev
/null
) &
110 proto_6in4_teardown
() {
114 proto_6in4_init_config
() {
118 proto_config_add_string
"ipaddr"
119 proto_config_add_string
"ip6addr"
120 proto_config_add_string
"ip6prefix"
121 proto_config_add_string
"peeraddr"
122 proto_config_add_string
"tunnelid"
123 proto_config_add_string
"username"
124 proto_config_add_string
"password"
125 proto_config_add_string
"updatekey"
126 proto_config_add_int
"mtu"
127 proto_config_add_int
"ttl"
128 proto_config_add_string
"tos"
129 proto_config_add_boolean
"sourcerouting"
132 [ -n "$INCLUDE_ONLY" ] ||
{