+#!/bin/sh
+
+if [ "$ACTION" = ifup ]; then
+ . /etc/functions.sh
+
+ include /lib/network
+ scan_interfaces
+
+ update_tunnel() {
+ local cfg="$1"
+
+ local proto
+ config_get proto "$cfg" proto
+ [ "$proto" = 6in4 ] || return 0
+
+ local wandev
+ config_get wandev "$cfg" wan_device
+ [ "$wandev" = "$DEVICE" ] || return 0
+
+ local oldip
+ local wanip=$(find_6in4_wanip "$wandev")
+ config_get oldip "$cfg" ipaddr
+
+ [ -n "$wanip" ] && [ "$oldip" != "$wanip" ] && {
+ local tunnelid
+ config_get tunnelid "$cfg" tunnelid
+
+ local username
+ config_get username "$cfg" username
+
+ local password
+ config_get password "$cfg" password
+
+ [ -n "$tunnelid" ] && [ -n "$username" ] && [ -n "$password" ] && {
+ password="$(echo -n "$password" | md5sum)"; password="${password%% *}"
+ uci_set_state network "$cfg" ipaddr "$wanip"
+
+ ( wget -qO/dev/null "http://ipv4.tunnelbroker.net/ipv4_end.php?ipv4b=AUTO&user_id=$username&pass=$password&tunnel_id=$tunnelid" && ifup "$cfg" )&
+ }
+ }
+ }
+
+ config_foreach update_tunnel interface
+fi