From 06479075e0b3c1262f16f9056c2b5ced94c90133 Mon Sep 17 00:00:00 2001
From: DannyK999 <dannyk999@live.com>
Date: Fri, 15 Dec 2017 07:29:43 +1000
Subject: [PATCH] Togglable VPN Payload (#26)

Based on the default VPN payload; this can now create a VPN-connection to an OpenVPN-server, or if the button is pressed, send traffic from the clients through said tunnel. This way no editing of the payload is required to switch modes. On boot the Squirrel will wait for a button press for 10 seconds, if it is pressed, the VPN will launch in client mode, if it is not pressed in the interval it will launch in remote-access mode instead.
---
 .../remote-access/Togglable-VPN/payload.sh    | 61 +++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 payloads/library/remote-access/Togglable-VPN/payload.sh

diff --git a/payloads/library/remote-access/Togglable-VPN/payload.sh b/payloads/library/remote-access/Togglable-VPN/payload.sh
new file mode 100644
index 0000000..1490660
--- /dev/null
+++ b/payloads/library/remote-access/Togglable-VPN/payload.sh
@@ -0,0 +1,61 @@
+#!/bin/bash
+# 
+# Title:		Togglable-VPN
+# Description:	Based on the default VPN payload; this can now create a VPN-connection to an OpenVPN-server, 
+#				or if the button is pressed, send traffic from the clients through said tunnel.
+#				This way no editing of the payload is required to switch modes. 
+#				On boot the Squirrel will wait for a button press for 10 seconds, if it is pressed, the VPN will 
+#				launch in client mode, if it is not pressed in the interval it will launch in remote-access mode.
+# Author: 		DannyK999
+# Credit:		Credit to Hak5 for original VPN payload.
+# Version:		1.0
+# Category: 	remote-access
+# Target: 		Any
+# Net Mode:		BRIDGE, VPN
+
+DNS_SERVER="8.8.8.8"
+
+# Cheap hack to set the DNS server
+function setdns() {
+	while true
+	do
+		[[ ! $(grep -q "$DNS_SERVER" /tmp/resolv.conf) ]] && {
+			echo -e "search lan\nnameserver $DNS_SERVER" > /tmp/resolv.conf
+		}
+		sleep 5
+	done
+}
+
+function start() {
+	LED SETUP
+
+	DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
+
+	# Check for button press to see whether to set NETMODE to BRIDGE or VPN 
+	# and wait 3 seconds to ensure that things can settle
+
+	BUTTON 10s && {
+		/usr/bin/NETMODE VPN
+	} || {
+		/usr/bin/NETMODE BRIDGE
+	}
+	sleep 3
+
+	# Make OpenVPN use the local configuration
+	uci set openvpn.vpn.config="${DIR}/config.ovpn"
+	uci commit
+
+	# Start the OpenVPN server in the background
+	/etc/init.d/openvpn start
+
+	# Start SSH Server
+	/etc/init.d/sshd start &
+
+	# Set DNS server
+	setdns &
+
+	LED ATTACK
+}
+
+# Start the payload
+start &