From 190e37043d8e51cbf3073d9869ae65fcd24f821f Mon Sep 17 00:00:00 2001
From: Bob Mottram <bob@freedombone.net>
Date: Mon, 25 Sep 2017 15:33:00 +0100
Subject: [PATCH] Only generate dhparams if needed

---
 src/freedombone-app-vpn | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/freedombone-app-vpn b/src/freedombone-app-vpn
index 98bd9874..95a4eecd 100755
--- a/src/freedombone-app-vpn
+++ b/src/freedombone-app-vpn
@@ -238,7 +238,9 @@ function install_vpn {
     sed -i "s|export KEY_EMAIL.*|export KEY_EMAIL=\"$MY_EMAIL_ADDRESS\"|g" /etc/openvpn/easy-rsa/vars
     sed -i "s|export KEY_OU=.*|export KEY_OU=\"MoonUnit\"|g" /etc/openvpn/easy-rsa/vars
     sed -i "s|export KEY_NAME.*|export KEY_NAME=\"$OPENVPN_SERVER_NAME\"|g" /etc/openvpn/easy-rsa/vars
-    openssl dhparam -out /etc/openvpn/dh2048.pem 2048
+    if [ ! -f /etc/openvpn/dh2048.pem ]; then
+        openssl dhparam -out /etc/openvpn/dh2048.pem 2048
+    fi
     cd /etc/openvpn/easy-rsa
     . ./vars
     ./clean-all