Add glorytun udp server support and a service to set 6in4 tunnel

update-grub.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+kernel=$1
+[ -z "$kernel" ] && exit 0
+
+config_file="$(find /boot/grub* -maxdepth 1 -name grub.cfg 2>/dev/null)"
+[ $config_file ] || exit 0
+
+deflt_file="$(find /etc/default \( -name grub -o -name grub2 \) 2>/dev/null)"
+[ $deflt_file ] || exit 0
+
+if [ -z "$(grep -m 1 vmlinuz $config_file | grep $kernel)" ]; then
+	x=0
+	sed -n -e 's@\([^'\"\'']*\)['\"\'']\([^'\"\'']*\).*@\1\2@' -e '/\(menuentry\) /p' <$config_file | \
+		while IFS= read ln
+		do
+			if [ -n "$(echo $ln | grep $kernel)" ]; then
+				sed -i "s@^\(GRUB_DEFAULT=\).*@\1\"$x\"@" $deflt_file
+				exit 0
+			fi
+			x=$(expr $x + 1)
+		done | sed 's@\(menuentry\) @@'
+fi