From 213eb198698ae32e5ebc715a7fbe36d78894165a Mon Sep 17 00:00:00 2001
From: iLTeoooD <matteo.dazzi@mia-platform.eu>
Date: Sun, 9 Jan 2022 14:47:05 +0100
Subject: [PATCH] Tun device gration

---
 .gitignore | 1 +
 Dockerfile | 1 +
 README.md  | 1 +
 startup.sh | 8 ++++++++
 4 files changed, 11 insertions(+)
 create mode 100644 .gitignore

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..600d2d3
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+.vscode
\ No newline at end of file
diff --git a/Dockerfile b/Dockerfile
index abe611d..5b0e8d4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,6 +11,7 @@ ENV SURFSHARK_CITY=
 ENV OPENVPN_OPTS=
 ENV CONNECTION_TYPE=tcp
 ENV LAN_NETWORK=
+ENV CREATE_TUN_DEVICE=
 HEALTHCHECK --interval=60s --timeout=10s --start-period=30s CMD curl -L 'https://ipinfo.io'
 COPY startup.sh .
 RUN apk add --update --no-cache openvpn wget unzip coreutils curl && chmod +x ./startup.sh
diff --git a/README.md b/README.md
index ac008cd..63f20ae 100644
--- a/README.md
+++ b/README.md
@@ -30,6 +30,7 @@ The container is configurable using 5 environment variables:
 |OPENVPN_OPTS|No|Any additional options for OpenVPN|
 |CONNECTION_TYPE|No|The connection type that you want to use: tcp, udp|
 |LAN_NETWORK|No|Lan network used to access the web ui of attached containers. Can be comma seperated for multiple subnets Comment out or leave blank: example 192.168.0.0/24|
+|CREATE_TUN_DEVICE|No|Creates the TUN device, useful for NAS users|
 
 `SURFSHARK_USER` and `SURFSHARK_PASSWORD` are provided at the bottom of this page: [https://account.surfshark.com/setup/manual](https://account.surfshark.com/setup/manual).
 
diff --git a/startup.sh b/startup.sh
index 2e5a1ac..d790523 100644
--- a/startup.sh
+++ b/startup.sh
@@ -21,4 +21,12 @@ then
     
     echo Do not forget to expose the ports for attached container we ui access
 fi
+
+if [ "${CREATE_TUN_DEVICE}" = "true" ]; then
+  echo "Creating TUN device /dev/net/tun"
+  mkdir -p /dev/net
+  mknod /dev/net/tun c 10 200
+  chmod 0666 /dev/net/tun
+fi
+
 openvpn --config $VPN_FILE --auth-user-pass vpn-auth.txt --mute-replay-warnings $OPENVPN_OPTS