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OpenVPN: cycle through VPN configs #35

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OpenVPN: cycle through VPN configs #35

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31dfb04
OpenVPN: button cycles through VPN configs or resets connection
jdgregson Jan 23, 2021
32d2193
Set FOR_CLIENTS back to 0
jdgregson Jan 23, 2021
9d2b261
Misc formatting fixes
jdgregson Jan 23, 2021
6e01d57
Simplified VPN config cycling
jdgregson Jan 23, 2021
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55 changes: 41 additions & 14 deletions payloads/library/remote-access/openvpn/payload.sh
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Original file line number Diff line number Diff line change
@@ -1,12 +1,13 @@
#!/bin/bash
#
# Title: OpenVPN
# Description: Create a connection to a VPN-connection to an OpenVPN-server. Optionally: Send traffic from the clients through said tunnel.
# Author: Hak5
# Version: 1.0
# Category: remote-access
# Target: Any
# Net Mode: BRIDGE, VPN
#
# Title: OpenVPN
# Description: Create a VPN connection to an OpenVPN server. Optionally, send
# traffic from the clients through said tunnel.
# Author: Hak5
# Version: 1.1
# Category: remote-access
# Target: Any
# Net Mode: BRIDGE, VPN

# Set to 1 to allow clients to use the VPN
FOR_CLIENTS=0
Expand All @@ -29,12 +30,7 @@ function start() {

DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)

# Update factory default payload
cp ${DIR}/payload.sh /root/payloads/switch3/payload.sh

# Set NETMODE to BRIDGE and wait 3 seconds
# to ensure that things can settle

# Set NETMODE to BRIDGE and wait 3 seconds to ensure that things can settle
[[ "$FOR_CLIENTS" == "1" ]] && {
/usr/bin/NETMODE VPN
} || {
Expand All @@ -56,6 +52,37 @@ function start() {
setdns &

LED ATTACK

# Cycle between VPN configs when the button is pressed. The default
# "config.ovpn" will be loaded on startup, and pressing the button will
# cycle through all numbered VPN configs. To use this, add additional VPN
# configs named "config1.ovpn", "config2.ovpn", etc.
#
# If no numbered configs exist, the button functions as a way to reset the
# VPN connection.
next=1
while true; do
NO_LED=true BUTTON

# Stop openvpn and update the LED
LED SETUP
/etc/init.d/openvpn stop

# Determine which config to load next
if [ -f "${DIR}/config${next}.ovpn" ]; then
uci set openvpn.vpn.config="${DIR}/config${next}.ovpn"
uci commit
next=$(($next + 1))
elif [ -f "${DIR}/config1.ovpn" ]; then
uci set openvpn.vpn.config="${DIR}/config1.ovpn"
uci commit
next=1
fi

# Start openvpn and update the LED
/etc/init.d/openvpn start
LED ATTACK
done
}

# Start the payload
Expand Down