From cbef9f4253fb0bc2a243571c0adfc3d7d8d66867 Mon Sep 17 00:00:00 2001
From: Jimmy Axenhus <github@axenhus.com>
Date: Sun, 4 Apr 2021 16:39:43 +0200
Subject: Initial commit.

---
 prepare-vpn-usb.sh | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100755 prepare-vpn-usb.sh

(limited to 'prepare-vpn-usb.sh')

diff --git a/prepare-vpn-usb.sh b/prepare-vpn-usb.sh
new file mode 100755
index 0000000..5d8815a
--- /dev/null
+++ b/prepare-vpn-usb.sh
@@ -0,0 +1,51 @@
+#!/bin/bash
+
+set -o errexit
+
+if [ ! -e /tmp/vpn-ramdisk ]; then
+  mkdir /tmp/vpn-ramdisk
+  mount -t ramfs -o size=1M ramfs /tmp/vpn-ramdisk
+  chmod 0700 /tmp/vpn-ramdisk
+fi
+
+if [ ! -e /tmp/vpn-ramdisk/usb-mounted ]; then
+  read -r -p "Enter path to USB device (empty for /dev/xvdi1 or /dev/xvdi, in that order): " usbdevice
+  if [ -z "$usbdevice" ]; then
+    if [ -e /dev/xvdi1 ]; then
+      usbdevice="/dev/xvdi1"
+    elif [ -e /dev/xvdi ]; then
+      usbdevice="/dev/xvdi"
+    fi
+  fi
+  mount "$usbdevice" /rw/config/vpn/
+  touch /rw/config/vpn/no-userpassword.txt
+  if [ -L /rw/config/vpn/vpn-client.conf ]; then
+    echo "Relinking /rw/config/vpn/vpn-client.conf to" /rw/config/vpn/*.ovpn
+    rm /rw/config/vpn/vpn-client.conf
+    ln -s /rw/config/vpn/*.ovpn /rw/config/vpn/vpn-client.conf
+  elif [ ! -e /rw/config/vpn/vpn-client.conf ]; then
+    echo "Creating link /rw/config/vpn/vpn-client.conf to" /rw/config/vpn/*.ovpn
+    ln -s /rw/config/vpn/*.ovpn /rw/config/vpn/vpn-client.conf
+  else
+    echo "vpn-client is probably a regular file. Doing nothing."
+  fi
+  touch /tmp/vpn-ramdisk/usb-mounted
+fi
+
+if [ ! -e /tmp/vpn-ramdisk/key-pass.txt ]; then
+  read -s -r -p "Key password: " keypassword
+  echo
+  touch /tmp/vpn-ramdisk/key-pass.txt
+  chmod 0600 /tmp/vpn-ramdisk/key-pass.txt
+  cat <<< "$keypassword" > /tmp/vpn-ramdisk/key-pass.txt
+fi
+
+if [ ! -e /tmp/vpn-ramdisk/userpassword.txt ]; then
+  read -p "Username: " username
+  read -s -r -p "Password: " upassword
+  echo
+  touch /tmp/vpn-ramdisk/userpassword.txt
+  chmod 0600 /tmp/vpn-ramdisk/userpassword.txt
+  cat <<< "$username" > /tmp/vpn-ramdisk/userpassword.txt
+  cat <<< "$upassword" >> /tmp/vpn-ramdisk/userpassword.txt
+fi
-- 
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