2 # 6in4.sh - IPv6-in-IPv4 tunnel backend
3 # Copyright (c) 2010-2015 OpenWrt.org
5 [ -n "$INCLUDE_ONLY" ] ||
{
7 .
/lib
/functions
/network.sh
16 (while [ $((timeout--)) -gt 0 ]; do
19 done; kill -9 $$) 2>/dev/null &
28 local link
="6in4-$cfg"
30 local mtu ttl tos ipaddr peeraddr ip6addr ip6prefix tunnelid username password updatekey sourcerouting
31 json_get_vars mtu ttl tos ipaddr peeraddr ip6addr ip6prefix tunnelid username password updatekey sourcerouting
33 [ -z "$peeraddr" ] && {
34 proto_notify_error
"$cfg" "MISSING_ADDRESS"
35 proto_block_restart
"$cfg"
39 ( proto_add_host_dependency
"$cfg" 0.0.0.0 )
43 if ! network_find_wan wanif ||
! network_get_ipaddr ipaddr
"$wanif"; then
44 proto_notify_error
"$cfg" "NO_WAN_LINK"
49 proto_init_update
"$link" 1
52 [ "$sourcerouting" != "0" ] && source="::/128"
53 proto_add_ipv6_route
"::" 0 "" "" "" "$source"
55 [ -n "$ip6addr" ] && {
56 local local6
="${ip6addr%%/*}"
57 local mask6
="${ip6addr##*/}"
58 [[ "$local6" = "$mask6" ]] && mask6
=
59 proto_add_ipv6_address
"$local6" "$mask6"
60 [ "$sourcerouting" != "0" ] && proto_add_ipv6_route
"::" 0 "" "" "" "$local6/$mask6"
63 [ -n "$ip6prefix" ] && {
64 proto_add_ipv6_prefix
"$ip6prefix"
65 [ "$sourcerouting" != "0" ] && proto_add_ipv6_route
"::" 0 "" "" "" "$ip6prefix"
69 json_add_string mode sit
70 json_add_int mtu
"${mtu:-1280}"
71 json_add_int ttl
"${ttl:-64}"
72 [ -n "$tos" ] && json_add_string tos
"$tos"
73 json_add_string
local "$ipaddr"
74 json_add_string remote
"$peeraddr"
77 proto_send_update
"$cfg"
79 [ -n "$tunnelid" -a -n "$username" -a \
( -n "$password" -o -n "$updatekey" \
) ] && {
80 [ -n "$updatekey" ] && password
="$updatekey"
84 local urlget_opts
="-qO-"
85 local ca_path
="${SSL_CERT_DIR-/etc/ssl/certs}"
87 if [ -n "$(which curl)" ]; then
90 if curl
-V |
grep "Protocols:" |
grep -qF "https"; then
92 urlget_opts
="$urlget_opts --capath $ca_path"
95 if [ "$http" = "http" ] &&
96 wget
--version 2>&1 |
grep -qF "+https"; then
98 urlget_opts
="-qO- --ca-directory=$ca_path"
101 [ "$http" = "https" -a -z "$(find $ca_path -name "*.0" 2>/dev/null)" ] && {
102 if [ "$urlget" = "curl" ]; then
103 urlget_opts
="$urlget_opts -k"
105 urlget_opts
="$urlget_opts --no-check-certificate"
109 local url
="$http://ipv4.tunnelbroker.net/nic/update?username=$username&password=$password&hostname=$tunnelid"
115 while [ $
((++try
)) -le $max ]; do
116 if proto_6in4_update
$urlget $urlget_opts "$url" 2>&1 | \
117 sed -e 's,^Killed$,timeout,' -e "s,^,update $try/$max: ," | \
120 logger
-t "$link" "updated"
125 logger
-t "$link" "update failed"
130 proto_6in4_teardown
() {
134 proto_6in4_init_config
() {
138 proto_config_add_string
"ipaddr"
139 proto_config_add_string
"ip6addr"
140 proto_config_add_string
"ip6prefix"
141 proto_config_add_string
"peeraddr"
142 proto_config_add_string
"tunnelid"
143 proto_config_add_string
"username"
144 proto_config_add_string
"password"
145 proto_config_add_string
"updatekey"
146 proto_config_add_int
"mtu"
147 proto_config_add_int
"ttl"
148 proto_config_add_string
"tos"
149 proto_config_add_boolean
"sourcerouting"
152 [ -n "$INCLUDE_ONLY" ] ||
{