Add logic to check if tun0 is created

1 files changed, 12 insertions, 0 deletions

diff --git a/vpn b/vpn
index 106073b..c9608c7 100755
--- a/vpn
+++ b/vpn
@@ -41,6 +41,18 @@ set_terminal_title()
 set_routes()
 {
 	local devtun=tun0
+	local c=0
+	local sec=10
+	while [ -z `ip addr | grep -E '^[0-9]' | awk '{print $2}' | sed 's/:$//' | grep $devtun` ]; do
+		echo Waiting for $devtun
+		sleep 1
+		c=`expr $c + 1`
+		if [ $c -gt $sec ]; then
+			echo $devtun not created. Exiting.
+			exit 1
+		fi
+	done
+
 	echo "$devtun ready."
 }