wireguard-openbsd/wireguard_client.sh
2023-04-25 12:35:54 +02:00

60 lines
1.3 KiB
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#!/bin/sh
if [ "$(id -u)" -ne 0 ]; then
echo "This script must be run as root"
exit 1
fi
if [ -z "$1" ]; then
echo "Usage: $0 <client>"
exit 1
fi
client=$1
server_ip=$(curl ipinfo.io/ip)
interface="wg0"
config_file="/etc/wireguard/${interface}.conf"
clients_dir="/etc/wireguard/clients"
server_port=$(grep "ListenPort" ${config_file} | awk '{print $3}')
last_ip=$(tail -n 1 ${config_file} |\
grep -oE "([0-9]{1,3}\.){3}[0-9]{1,3}")
new_ip=$(echo "$last_ip" | awk -F. '{print $1"."$2"."$3"."$4+1}')
client_ip="${new_ip}/32"
mkdir -p ${clients_dir}
cd ${clients_dir} || exit
server_public=$(cat "../public.key")
umask 077 && wg genkey > "${client}_private.key"
wg pubkey < "${client}_private.key" > "${client}_public.key"
client_private=$(cat "${client}_private.key")
client_public=$(cat "${client}_public.key")
cat > "${client}.conf" << EOF
[Interface]
PrivateKey = ${client_private}
Address=${client_ip}
DNS = 9.9.9.9
# Server
[Peer]
PublicKey = ${server_public}
Endpoint = ${server_ip}:${server_port}
AllowedIPs = ::/0, 0.0.0.0/0
PersistentKeepalive = 25
EOF
cat >> ${config_file} << EOF
# client [${client}]
[Peer]
PublicKey = ${client_public}
AllowedIPs = ${client_ip}
EOF
qrencode --read-from="${client}.conf" --type=UTF8 --level=M
sh /etc/netstart ${interface}
cat "${clients_dir}/${client}.conf"