6in4: add netifd support
[openwrt/openwrt.git] / package / 6in4 / files.old / 6in4.hotplug
diff --git a/package/6in4/files.old/6in4.hotplug b/package/6in4/files.old/6in4.hotplug
new file mode 100644 (file)
index 0000000..3d9def4
--- /dev/null
@@ -0,0 +1,68 @@
+#!/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 "$(find_6in4_wanif)"
+               [ "$wandev" = "$DEVICE" ] || return 0
+
+               local wanip=$(find_6in4_wanip "$wandev")
+
+               [ -n "$wanip" ] && {
+                       lsmod | grep -q ^sit || {
+                               logger -t 6in4-update "Tunneling driver not loaded yet, deferring action"
+                               exit 0
+                       }
+
+                       local tunnelid
+                       config_get tunnelid "$cfg" tunnelid
+
+                       local username
+                       config_get username "$cfg" username
+
+                       local password
+                       config_get password "$cfg" password
+
+                       uci_set_state network "$cfg" ipaddr "$wanip"
+
+                       [ -n "$tunnelid" ] && [ -n "$username" ] && [ -n "$password" ] && {
+                               [ "${#password}" == 32 -a -z "${password//[a-fA-F0-9]/}" ] || {
+                                       password="$(echo -n "$password" | md5sum)"; password="${password%% *}"
+                               }
+
+                               (
+                                       local url="http://ipv4.tunnelbroker.net/ipv4_end.php?ip=AUTO&apikey=$username&pass=$password&tid=$tunnelid"
+                                       local try=0
+                                       local max=3
+
+                                       while [ $((++try)) -le $max ]; do
+                                               wget -qO/dev/null "$url" 2>/dev/null && {
+                                                       logger -t 6in4-update "Updated tunnel #$tunnelid endpoint to $wanip"
+                                                       ifup "$cfg"
+                                                       break
+                                               } || {
+                                                       logger -t 6in4-update "Try $try/$max failed, retrying"
+                                                       sleep 1
+                                               }
+                                       done
+                               )&
+                       } || {
+                               logger -t 6in4-update "Re-establishing tunnel due to change on $INTERFACE ($DEVICE)"
+                               ifup "$cfg" &
+                       }
+               }
+       }
+
+       config_foreach update_tunnel interface
+fi