firmware/general/overlay/usr/sbin/wg-start

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#!/bin/sh
set -e
modprobe wireguard
ip link add dev wg0 type wireguard
( echo "#"
echo "[Interface]"
echo "PrivateKey = $(fw_printenv -n wg_privkey)"
# echo "Address = $(fw_printenv -n wg_address)"
# echo "DNS = $(fw_printenv -n wg_dns)"
echo
echo "[Peer]"
echo "Endpoint = $(fw_printenv -n wg_endpoint)"
echo "PersistentKeepalive = $(fw_printenv -n wg_alive)"
echo "PublicKey = $(fw_printenv -n wg_pubkey)"
echo "PresharedKey = $(fw_printenv -n wg_sharkey)"
echo "AllowedIPs = $(fw_printenv -n wg_allowed)"
echo "#"
) >>/tmp/wireguard.conf
wg setconf wg0 /tmp/wireguard.conf
ip address add dev wg0 $(fw_printenv -n wg_address)
ip link set up dev wg0