[package] 6in4, 6to4: prevent starting the tunnel if kmod-sit is not yet loaded ...

[openwrt.git] / package / 6in4 / files / 6in4.hotplug

diff --git a/package/6in4/files/6in4.hotplug b/package/6in4/files/6in4.hotplug
index 9499296..9df9934 100644 (file)
--- a/package/6in4/files/6in4.hotplug
+++ b/package/6in4/files/6in4.hotplug
@@ -20,6 +20,11 @@ if [ "$ACTION" = ifup ]; then
                local wanip=$(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
 
@@ -29,11 +34,12 @@ if [ "$ACTION" = ifup ]; then
                        local password
                        config_get password "$cfg" password
 
+                       uci_set_state network "$cfg" ipaddr "$wanip"
+
                        [ -n "$tunnelid" ] && [ -n "$username" ] && [ -n "$password" ] && {
                                [ "${#password}" == 32 -a -z "${password//[a-f0-9]/}" ] || {
                                        password="$(echo -n "$password" | md5sum)"; password="${password%% *}"
                                }
-                               uci_set_state network "$cfg" ipaddr "$wanip"
 
                                (
                                        local url="http://ipv4.tunnelbroker.net/ipv4_end.php?ipv4b=AUTO&user_id=$username&pass=$password&tunnel_id=$tunnelid"
@@ -51,6 +57,9 @@ if [ "$ACTION" = ifup ]; then
                                                }
                                        done
                                )&
+                       } || {
+                               logger -t 6in4-update "Re-establishing tunnel due to change on $INTERFACE ($DEVICE)"
+                               ifup "$cfg" &
                        }
                }
        }