vpn-stack/wg-peer-audit.sh
2022-07-14 12:32:41 -07:00

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#!/bin/bash
#
# vpn-stack
# A set of bash scripts for installing and managing a WireGuard VPN server.
# https://git.stack-source.com/msb/vpn-stack
# Copyright (c) 2022 Matthew Saunders Brown <matthewsaundersbrown@gmail.com>
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
#
# wg-peer-audit.sh
# check that peer config file exists for all currently active peers
# this is basis of a "cleanup" script to remove configs for invalid
# old or deleted clients
# require root
if [ "${EUID}" -ne 0 ]; then
echo "This script must be run as root"
exit 1
fi
# get all peers in running wireguard server
peers=($(wg|grep peer|cut -d ' ' -f 2))
# get number of peers found above
peersCount=${#peers[@]}
# if any peers found cycle through them
if [ $peersCount -gt 0 ]; then
for (( i=0; i<${peersCount}; i++ ));
do
grep -q ${peers[$i]} /etc/wireguard/peers/*.conf
match=$?
if [[ $match != 0 ]]; then
echo "did not find peer config for: ${peers[$i]}"
echo "consider removing peer now"
#wg set wg0 peer ${peers[$i]} remove
#wg-quick save wg0
fi
done
fi