Muhammad Fadhila Abiyyu Faris
35ff83baca
This commit introduces a new WireGuard VPN installer with enterprise-grade security features. The installer includes: - Zero-touch installation with automatic configuration - Modular architecture for maintainability (separate lib files) - Client management interface with bandwidth monitoring - Support for multiple Linux distributions - Secure defaults and hardened configurations The implementation provides a complete solution for deploying WireGuard VPN servers with minimal user interaction while maintaining security best practices.
660 lines
26 KiB
Bash
660 lines
26 KiB
Bash
#!/bin/bash
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#
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# https://github.com/Nyr/wireguard-install
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#
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# Copyright (c) 2020 Nyr. Released under the MIT License.
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# Detect Debian users running the script with "sh" instead of bash
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if readlink /proc/$$/exe | grep -q "dash"; then
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echo 'This installer needs to be run with "bash", not "sh".'
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exit
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fi
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# Discard stdin. Needed when running from a one-liner which includes a newline
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read -N 999999 -t 0.001
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# Detect OS
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# $os_version variables aren't always in use, but are kept here for convenience
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if grep -qs "ubuntu" /etc/os-release; then
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os="ubuntu"
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os_version=$(grep 'VERSION_ID' /etc/os-release | cut -d '"' -f 2 | tr -d '.')
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elif [[ -e /etc/debian_version ]]; then
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os="debian"
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os_version=$(grep -oE '[0-9]+' /etc/debian_version | head -1)
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elif [[ -e /etc/almalinux-release || -e /etc/rocky-release || -e /etc/centos-release ]]; then
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os="centos"
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os_version=$(grep -shoE '[0-9]+' /etc/almalinux-release /etc/rocky-release /etc/centos-release | head -1)
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elif [[ -e /etc/fedora-release ]]; then
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os="fedora"
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os_version=$(grep -oE '[0-9]+' /etc/fedora-release | head -1)
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else
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echo "This installer seems to be running on an unsupported distribution.
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Supported distros are Ubuntu, Debian, AlmaLinux, Rocky Linux, CentOS and Fedora."
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exit
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fi
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if [[ "$os" == "ubuntu" && "$os_version" -lt 2204 ]]; then
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echo "Ubuntu 22.04 or higher is required to use this installer.
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This version of Ubuntu is too old and unsupported."
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exit
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fi
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if [[ "$os" == "debian" ]]; then
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if grep -q '/sid' /etc/debian_version; then
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echo "Debian Testing and Debian Unstable are unsupported by this installer."
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exit
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fi
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if [[ "$os_version" -lt 11 ]]; then
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echo "Debian 11 or higher is required to use this installer.
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This version of Debian is too old and unsupported."
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exit
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fi
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fi
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if [[ "$os" == "centos" && "$os_version" -lt 9 ]]; then
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os_name=$(sed 's/ release.*//' /etc/almalinux-release /etc/rocky-release /etc/centos-release 2>/dev/null | head -1)
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echo "$os_name 9 or higher is required to use this installer.
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This version of $os_name is too old and unsupported."
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exit
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fi
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# Detect environments where $PATH does not include the sbin directories
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if ! grep -q sbin <<< "$PATH"; then
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echo '$PATH does not include sbin. Try using "su -" instead of "su".'
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exit
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fi
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# Detect if BoringTun (userspace WireGuard) needs to be used
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if ! systemd-detect-virt -cq; then
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# Not running inside a container
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use_boringtun="0"
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elif grep -q '^wireguard ' /proc/modules; then
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# Running inside a container, but the wireguard kernel module is available
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use_boringtun="0"
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else
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# Running inside a container and the wireguard kernel module is not available
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use_boringtun="1"
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fi
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if [[ "$EUID" -ne 0 ]]; then
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echo "This installer needs to be run with superuser privileges."
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exit
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fi
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if [[ "$use_boringtun" -eq 1 ]]; then
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if [ "$(uname -m)" != "x86_64" ]; then
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echo "In containerized systems without the wireguard kernel module, this installer
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supports only the x86_64 architecture.
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The system runs on $(uname -m) and is unsupported."
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exit
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fi
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# TUN device is required to use BoringTun
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if [[ ! -e /dev/net/tun ]] || ! ( exec 7<>/dev/net/tun ) 2>/dev/null; then
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echo "The system does not have the TUN device available.
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TUN needs to be enabled before running this installer."
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exit
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fi
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fi
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# Store the absolute path of the directory where the script is located
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script_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
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new_client_dns () {
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echo "Select a DNS server for the client:"
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echo " 1) Default system resolvers"
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echo " 2) Google"
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echo " 3) 1.1.1.1"
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echo " 4) OpenDNS"
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echo " 5) Quad9"
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echo " 6) Gcore"
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echo " 7) AdGuard"
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echo " 8) Specify custom resolvers"
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read -p "DNS server [1]: " dns
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until [[ -z "$dns" || "$dns" =~ ^[1-8]$ ]]; do
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echo "$dns: invalid selection."
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read -p "DNS server [1]: " dns
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done
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case "$dns" in
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1|"")
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# Locate the proper resolv.conf
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# Needed for systems running systemd-resolved
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if grep '^nameserver' "/etc/resolv.conf" | grep -qv '127.0.0.53' ; then
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resolv_conf="/etc/resolv.conf"
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else
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resolv_conf="/run/systemd/resolve/resolv.conf"
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fi
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# Extract nameservers and provide them in the required format
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dns=$(grep -v '^#\|^;' "$resolv_conf" | grep '^nameserver' | grep -v '127.0.0.53' | grep -oE '[0-9]{1,3}(\.[0-9]{1,3}){3}' | xargs | sed -e 's/ /, /g')
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;;
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2)
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dns="8.8.8.8, 8.8.4.4"
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;;
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3)
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dns="1.1.1.1, 1.0.0.1"
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;;
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4)
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dns="208.67.222.222, 208.67.220.220"
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;;
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5)
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dns="9.9.9.9, 149.112.112.112"
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;;
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6)
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dns="95.85.95.85, 2.56.220.2"
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;;
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7)
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dns="94.140.14.14, 94.140.15.15"
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;;
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8)
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echo
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until [[ -n "$custom_dns" ]]; do
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echo "Enter DNS servers (one or more IPv4 addresses, separated by commas or spaces):"
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read -p "DNS servers: " dns_input
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# Convert comma delimited to space delimited
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dns_input=$(echo "$dns_input" | tr ',' ' ')
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# Validate and build custom DNS IP list
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for dns_ip in $dns_input; do
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if [[ "$dns_ip" =~ ^[0-9]{1,3}(\.[0-9]{1,3}){3}$ ]]; then
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if [[ -z "$custom_dns" ]]; then
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custom_dns="$dns_ip"
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else
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custom_dns="$custom_dns, $dns_ip"
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fi
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fi
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done
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if [ -z "$custom_dns" ]; then
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echo "Invalid input."
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else
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dns="$custom_dns"
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fi
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done
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;;
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esac
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}
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new_client_setup () {
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# Given a list of the assigned internal IPv4 addresses, obtain the lowest still
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# available octet. Important to start looking at 2, because 1 is our gateway.
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octet=2
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while grep AllowedIPs /etc/wireguard/wg0.conf | cut -d "." -f 4 | cut -d "/" -f 1 | grep -q "^$octet$"; do
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(( octet++ ))
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done
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# Don't break the WireGuard configuration in case the address space is full
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if [[ "$octet" -eq 255 ]]; then
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echo "253 clients are already configured. The WireGuard internal subnet is full!"
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exit
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fi
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key=$(wg genkey)
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psk=$(wg genpsk)
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# Configure client in the server
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cat << EOF >> /etc/wireguard/wg0.conf
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# BEGIN_PEER $client
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[Peer]
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PublicKey = $(wg pubkey <<< $key)
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PresharedKey = $psk
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AllowedIPs = 10.7.0.$octet/32$(grep -q 'fddd:2c4:2c4:2c4::1' /etc/wireguard/wg0.conf && echo ", fddd:2c4:2c4:2c4::$octet/128")
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# END_PEER $client
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EOF
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# Create client configuration
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cat << EOF > "$script_dir"/"$client".conf
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[Interface]
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Address = 10.7.0.$octet/24$(grep -q 'fddd:2c4:2c4:2c4::1' /etc/wireguard/wg0.conf && echo ", fddd:2c4:2c4:2c4::$octet/64")
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DNS = $dns
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PrivateKey = $key
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[Peer]
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PublicKey = $(grep PrivateKey /etc/wireguard/wg0.conf | cut -d " " -f 3 | wg pubkey)
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PresharedKey = $psk
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AllowedIPs = 0.0.0.0/0, ::/0
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Endpoint = $(grep '^# ENDPOINT' /etc/wireguard/wg0.conf | cut -d " " -f 3):$(grep ListenPort /etc/wireguard/wg0.conf | cut -d " " -f 3)
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PersistentKeepalive = 25
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EOF
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}
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if [[ ! -e /etc/wireguard/wg0.conf ]]; then
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# Detect some Debian minimal setups where neither wget nor curl are installed
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if ! hash wget 2>/dev/null && ! hash curl 2>/dev/null; then
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echo "Wget is required to use this installer."
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read -n1 -r -p "Press any key to install Wget and continue..."
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apt-get update
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apt-get install -y wget
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fi
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clear
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echo 'Welcome to this WireGuard road warrior installer!'
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# If system has a single IPv4, it is selected automatically. Else, ask the user
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if [[ $(ip -4 addr | grep inet | grep -vEc '127(\.[0-9]{1,3}){3}') -eq 1 ]]; then
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ip=$(ip -4 addr | grep inet | grep -vE '127(\.[0-9]{1,3}){3}' | cut -d '/' -f 1 | grep -oE '[0-9]{1,3}(\.[0-9]{1,3}){3}')
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else
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number_of_ip=$(ip -4 addr | grep inet | grep -vEc '127(\.[0-9]{1,3}){3}')
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echo
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echo "Which IPv4 address should be used?"
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ip -4 addr | grep inet | grep -vE '127(\.[0-9]{1,3}){3}' | cut -d '/' -f 1 | grep -oE '[0-9]{1,3}(\.[0-9]{1,3}){3}' | nl -s ') '
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read -p "IPv4 address [1]: " ip_number
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until [[ -z "$ip_number" || "$ip_number" =~ ^[0-9]+$ && "$ip_number" -le "$number_of_ip" ]]; do
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echo "$ip_number: invalid selection."
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read -p "IPv4 address [1]: " ip_number
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done
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[[ -z "$ip_number" ]] && ip_number="1"
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ip=$(ip -4 addr | grep inet | grep -vE '127(\.[0-9]{1,3}){3}' | cut -d '/' -f 1 | grep -oE '[0-9]{1,3}(\.[0-9]{1,3}){3}' | sed -n "$ip_number"p)
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fi
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# If $ip is a private IP address, the server must be behind NAT
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if echo "$ip" | grep -qE '^(10\.|172\.1[6789]\.|172\.2[0-9]\.|172\.3[01]\.|192\.168)'; then
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echo
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echo "This server is behind NAT. What is the public IPv4 address or hostname?"
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# Get public IP and sanitize with grep
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get_public_ip=$(grep -m 1 -oE '^[0-9]{1,3}(\.[0-9]{1,3}){3}$' <<< "$(wget -T 10 -t 1 -4qO- "http://ip1.dynupdate.no-ip.com/" || curl -m 10 -4Ls "http://ip1.dynupdate.no-ip.com/")")
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read -p "Public IPv4 address / hostname [$get_public_ip]: " public_ip
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# If the checkip service is unavailable and user didn't provide input, ask again
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until [[ -n "$get_public_ip" || -n "$public_ip" ]]; do
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echo "Invalid input."
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read -p "Public IPv4 address / hostname: " public_ip
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done
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[[ -z "$public_ip" ]] && public_ip="$get_public_ip"
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fi
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# If system has a single IPv6, it is selected automatically
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if [[ $(ip -6 addr | grep -c 'inet6 [23]') -eq 1 ]]; then
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ip6=$(ip -6 addr | grep 'inet6 [23]' | cut -d '/' -f 1 | grep -oE '([0-9a-fA-F]{0,4}:){1,7}[0-9a-fA-F]{0,4}')
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fi
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# If system has multiple IPv6, ask the user to select one
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if [[ $(ip -6 addr | grep -c 'inet6 [23]') -gt 1 ]]; then
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number_of_ip6=$(ip -6 addr | grep -c 'inet6 [23]')
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echo
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echo "Which IPv6 address should be used?"
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ip -6 addr | grep 'inet6 [23]' | cut -d '/' -f 1 | grep -oE '([0-9a-fA-F]{0,4}:){1,7}[0-9a-fA-F]{0,4}' | nl -s ') '
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read -p "IPv6 address [1]: " ip6_number
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until [[ -z "$ip6_number" || "$ip6_number" =~ ^[0-9]+$ && "$ip6_number" -le "$number_of_ip6" ]]; do
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echo "$ip6_number: invalid selection."
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read -p "IPv6 address [1]: " ip6_number
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done
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[[ -z "$ip6_number" ]] && ip6_number="1"
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ip6=$(ip -6 addr | grep 'inet6 [23]' | cut -d '/' -f 1 | grep -oE '([0-9a-fA-F]{0,4}:){1,7}[0-9a-fA-F]{0,4}' | sed -n "$ip6_number"p)
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fi
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echo
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echo "What port should WireGuard listen on?"
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read -p "Port [51820]: " port
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until [[ -z "$port" || "$port" =~ ^[0-9]+$ && "$port" -le 65535 ]]; do
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echo "$port: invalid port."
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read -p "Port [51820]: " port
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done
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[[ -z "$port" ]] && port="51820"
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echo
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echo "Enter a name for the first client:"
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read -p "Name [client]: " unsanitized_client
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# Allow a limited length and set of characters to avoid conflicts
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client=$(sed 's/[^0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-]/_/g' <<< "$unsanitized_client" | cut -c-15)
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[[ -z "$client" ]] && client="client"
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echo
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new_client_dns
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# Set up automatic updates for BoringTun if the user is fine with that
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if [[ "$use_boringtun" -eq 1 ]]; then
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echo
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echo "BoringTun will be installed to set up WireGuard on the system."
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read -p "Should automatic updates be enabled for it? [Y/n]: " boringtun_updates
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until [[ "$boringtun_updates" =~ ^[yYnN]*$ ]]; do
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echo "$remove: invalid selection."
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read -p "Should automatic updates be enabled for it? [Y/n]: " boringtun_updates
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done
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[[ -z "$boringtun_updates" ]] && boringtun_updates="y"
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if [[ "$boringtun_updates" =~ ^[yY]$ ]]; then
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if [[ "$os" == "centos" || "$os" == "fedora" ]]; then
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cron="cronie"
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elif [[ "$os" == "debian" || "$os" == "ubuntu" ]]; then
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cron="cron"
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fi
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fi
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fi
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echo
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echo "WireGuard installation is ready to begin."
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# Install a firewall if firewalld or iptables are not already available
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if ! systemctl is-active --quiet firewalld.service && ! hash iptables 2>/dev/null; then
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if [[ "$os" == "centos" || "$os" == "fedora" ]]; then
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firewall="firewalld"
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# We don't want to silently enable firewalld, so we give a subtle warning
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# If the user continues, firewalld will be installed and enabled during setup
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echo "firewalld, which is required to manage routing tables, will also be installed."
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elif [[ "$os" == "debian" || "$os" == "ubuntu" ]]; then
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# iptables is way less invasive than firewalld so no warning is given
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firewall="iptables"
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fi
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fi
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read -n1 -r -p "Press any key to continue..."
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# Install WireGuard
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# If BoringTun is not required, set up with the WireGuard kernel module
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if [[ "$use_boringtun" -eq 0 ]]; then
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if [[ "$os" == "ubuntu" ]]; then
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# Ubuntu
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apt-get update
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apt-get install -y wireguard qrencode $firewall
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elif [[ "$os" == "debian" ]]; then
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# Debian
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apt-get update
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apt-get install -y wireguard qrencode $firewall
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elif [[ "$os" == "centos" ]]; then
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# CentOS
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dnf install -y epel-release
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dnf install -y wireguard-tools qrencode $firewall
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elif [[ "$os" == "fedora" ]]; then
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# Fedora
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dnf install -y wireguard-tools qrencode $firewall
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mkdir -p /etc/wireguard/
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fi
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# Else, BoringTun needs to be used
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else
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# Install required packages
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if [[ "$os" == "ubuntu" ]]; then
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# Ubuntu
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apt-get update
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apt-get install -y qrencode ca-certificates $cron $firewall
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apt-get install -y wireguard-tools --no-install-recommends
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elif [[ "$os" == "debian" ]]; then
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# Debian
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apt-get update
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apt-get install -y qrencode ca-certificates $cron $firewall
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apt-get install -y wireguard-tools --no-install-recommends
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elif [[ "$os" == "centos" ]]; then
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# CentOS
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dnf install -y epel-release
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dnf install -y wireguard-tools qrencode ca-certificates tar $cron $firewall
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elif [[ "$os" == "fedora" ]]; then
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# Fedora
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dnf install -y wireguard-tools qrencode ca-certificates tar $cron $firewall
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mkdir -p /etc/wireguard/
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fi
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# Grab the BoringTun binary using wget or curl and extract into the right place.
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# Don't use this service elsewhere without permission! Contact me before you do!
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{ wget -qO- https://wg.nyr.be/1/latest/download 2>/dev/null || curl -sL https://wg.nyr.be/1/latest/download ; } | tar xz -C /usr/local/sbin/ --wildcards 'boringtun-*/boringtun' --strip-components 1
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# Configure wg-quick to use BoringTun
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mkdir /etc/systemd/system/wg-quick@wg0.service.d/ 2>/dev/null
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echo "[Service]
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Environment=WG_QUICK_USERSPACE_IMPLEMENTATION=boringtun
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Environment=WG_SUDO=1" > /etc/systemd/system/wg-quick@wg0.service.d/boringtun.conf
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if [[ -n "$cron" ]] && [[ "$os" == "centos" || "$os" == "fedora" ]]; then
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systemctl enable --now crond.service
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fi
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fi
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# If firewalld was just installed, enable it
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if [[ "$firewall" == "firewalld" ]]; then
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systemctl enable --now firewalld.service
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fi
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# Generate wg0.conf
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cat << EOF > /etc/wireguard/wg0.conf
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# Do not alter the commented lines
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# They are used by wireguard-install
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# ENDPOINT $([[ -n "$public_ip" ]] && echo "$public_ip" || echo "$ip")
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[Interface]
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Address = 10.7.0.1/24$([[ -n "$ip6" ]] && echo ", fddd:2c4:2c4:2c4::1/64")
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PrivateKey = $(wg genkey)
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ListenPort = $port
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EOF
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chmod 600 /etc/wireguard/wg0.conf
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# Enable net.ipv4.ip_forward for the system
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echo 'net.ipv4.ip_forward=1' > /etc/sysctl.d/99-wireguard-forward.conf
|
||
# Enable without waiting for a reboot or service restart
|
||
echo 1 > /proc/sys/net/ipv4/ip_forward
|
||
if [[ -n "$ip6" ]]; then
|
||
# Enable net.ipv6.conf.all.forwarding for the system
|
||
echo "net.ipv6.conf.all.forwarding=1" >> /etc/sysctl.d/99-wireguard-forward.conf
|
||
# Enable without waiting for a reboot or service restart
|
||
echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
|
||
fi
|
||
if systemctl is-active --quiet firewalld.service; then
|
||
# Using both permanent and not permanent rules to avoid a firewalld
|
||
# reload.
|
||
firewall-cmd --add-port="$port"/udp
|
||
firewall-cmd --zone=trusted --add-source=10.7.0.0/24
|
||
firewall-cmd --permanent --add-port="$port"/udp
|
||
firewall-cmd --permanent --zone=trusted --add-source=10.7.0.0/24
|
||
# Set NAT for the VPN subnet
|
||
firewall-cmd --direct --add-rule ipv4 nat POSTROUTING 0 -s 10.7.0.0/24 ! -d 10.7.0.0/24 -j SNAT --to "$ip"
|
||
firewall-cmd --permanent --direct --add-rule ipv4 nat POSTROUTING 0 -s 10.7.0.0/24 ! -d 10.7.0.0/24 -j SNAT --to "$ip"
|
||
if [[ -n "$ip6" ]]; then
|
||
firewall-cmd --zone=trusted --add-source=fddd:2c4:2c4:2c4::/64
|
||
firewall-cmd --permanent --zone=trusted --add-source=fddd:2c4:2c4:2c4::/64
|
||
firewall-cmd --direct --add-rule ipv6 nat POSTROUTING 0 -s fddd:2c4:2c4:2c4::/64 ! -d fddd:2c4:2c4:2c4::/64 -j SNAT --to "$ip6"
|
||
firewall-cmd --permanent --direct --add-rule ipv6 nat POSTROUTING 0 -s fddd:2c4:2c4:2c4::/64 ! -d fddd:2c4:2c4:2c4::/64 -j SNAT --to "$ip6"
|
||
fi
|
||
else
|
||
# Create a service to set up persistent iptables rules
|
||
iptables_path=$(command -v iptables)
|
||
ip6tables_path=$(command -v ip6tables)
|
||
# nf_tables is not available as standard in OVZ kernels. So use iptables-legacy
|
||
# if we are in OVZ, with a nf_tables backend and iptables-legacy is available.
|
||
if [[ $(systemd-detect-virt) == "openvz" ]] && readlink -f "$(command -v iptables)" | grep -q "nft" && hash iptables-legacy 2>/dev/null; then
|
||
iptables_path=$(command -v iptables-legacy)
|
||
ip6tables_path=$(command -v ip6tables-legacy)
|
||
fi
|
||
echo "[Unit]
|
||
After=network-online.target
|
||
Wants=network-online.target
|
||
[Service]
|
||
Type=oneshot
|
||
ExecStart=$iptables_path -w 5 -t nat -A POSTROUTING -s 10.7.0.0/24 ! -d 10.7.0.0/24 -j SNAT --to $ip
|
||
ExecStart=$iptables_path -w 5 -I INPUT -p udp --dport $port -j ACCEPT
|
||
ExecStart=$iptables_path -w 5 -I FORWARD -s 10.7.0.0/24 -j ACCEPT
|
||
ExecStart=$iptables_path -w 5 -I FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT
|
||
ExecStop=$iptables_path -w 5 -t nat -D POSTROUTING -s 10.7.0.0/24 ! -d 10.7.0.0/24 -j SNAT --to $ip
|
||
ExecStop=$iptables_path -w 5 -D INPUT -p udp --dport $port -j ACCEPT
|
||
ExecStop=$iptables_path -w 5 -D FORWARD -s 10.7.0.0/24 -j ACCEPT
|
||
ExecStop=$iptables_path -w 5 -D FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT" > /etc/systemd/system/wg-iptables.service
|
||
if [[ -n "$ip6" ]]; then
|
||
echo "ExecStart=$ip6tables_path -w 5 -t nat -A POSTROUTING -s fddd:2c4:2c4:2c4::/64 ! -d fddd:2c4:2c4:2c4::/64 -j SNAT --to $ip6
|
||
ExecStart=$ip6tables_path -w 5 -I FORWARD -s fddd:2c4:2c4:2c4::/64 -j ACCEPT
|
||
ExecStart=$ip6tables_path -w 5 -I FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT
|
||
ExecStop=$ip6tables_path -w 5 -t nat -D POSTROUTING -s fddd:2c4:2c4:2c4::/64 ! -d fddd:2c4:2c4:2c4::/64 -j SNAT --to $ip6
|
||
ExecStop=$ip6tables_path -w 5 -D FORWARD -s fddd:2c4:2c4:2c4::/64 -j ACCEPT
|
||
ExecStop=$ip6tables_path -w 5 -D FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT" >> /etc/systemd/system/wg-iptables.service
|
||
fi
|
||
echo "RemainAfterExit=yes
|
||
[Install]
|
||
WantedBy=multi-user.target" >> /etc/systemd/system/wg-iptables.service
|
||
systemctl enable --now wg-iptables.service
|
||
fi
|
||
# Generates the custom client.conf
|
||
new_client_setup
|
||
# Enable and start the wg-quick service
|
||
systemctl enable --now wg-quick@wg0.service
|
||
# Set up automatic updates for BoringTun if the user wanted to
|
||
if [[ "$boringtun_updates" =~ ^[yY]$ ]]; then
|
||
# Deploy upgrade script
|
||
cat << 'EOF' > /usr/local/sbin/boringtun-upgrade
|
||
#!/bin/bash
|
||
latest=$(wget -qO- https://wg.nyr.be/1/latest 2>/dev/null || curl -sL https://wg.nyr.be/1/latest 2>/dev/null)
|
||
# If server did not provide an appropriate response, exit
|
||
if ! head -1 <<< "$latest" | grep -qiE "^boringtun.+[0-9]+\.[0-9]+.*$"; then
|
||
echo "Update server unavailable"
|
||
exit
|
||
fi
|
||
current=$(/usr/local/sbin/boringtun -V)
|
||
if [[ "$current" != "$latest" ]]; then
|
||
download="https://wg.nyr.be/1/latest/download"
|
||
xdir=$(mktemp -d)
|
||
# If download and extraction are successful, upgrade the boringtun binary
|
||
if { wget -qO- "$download" 2>/dev/null || curl -sL "$download" ; } | tar xz -C "$xdir" --wildcards "boringtun-*/boringtun" --strip-components 1; then
|
||
systemctl stop wg-quick@wg0.service
|
||
rm -f /usr/local/sbin/boringtun
|
||
mv "$xdir"/boringtun /usr/local/sbin/boringtun
|
||
systemctl start wg-quick@wg0.service
|
||
echo "Successfully updated to $(/usr/local/sbin/boringtun -V)"
|
||
else
|
||
echo "boringtun update failed"
|
||
fi
|
||
rm -rf "$xdir"
|
||
else
|
||
echo "$current is up to date"
|
||
fi
|
||
EOF
|
||
chmod +x /usr/local/sbin/boringtun-upgrade
|
||
# Add cron job to run the updater daily at a random time between 3:00 and 5:59
|
||
{ crontab -l 2>/dev/null; echo "$(( $RANDOM % 60 )) $(( $RANDOM % 3 + 3 )) * * * /usr/local/sbin/boringtun-upgrade &>/dev/null" ; } | crontab -
|
||
fi
|
||
echo
|
||
qrencode -t ANSI256UTF8 < "$script_dir"/"$client.conf"
|
||
echo -e '\xE2\x86\x91 That is a QR code containing the client configuration.'
|
||
echo
|
||
echo "Finished!"
|
||
echo
|
||
echo "The client configuration is available in:" "$script_dir"/"$client.conf"
|
||
echo "New clients can be added by running this script again."
|
||
else
|
||
clear
|
||
echo "WireGuard is already installed."
|
||
echo
|
||
echo "Select an option:"
|
||
echo " 1) Add a new client"
|
||
echo " 2) Remove an existing client"
|
||
echo " 3) Remove WireGuard"
|
||
echo " 4) Exit"
|
||
read -p "Option: " option
|
||
until [[ "$option" =~ ^[1-4]$ ]]; do
|
||
echo "$option: invalid selection."
|
||
read -p "Option: " option
|
||
done
|
||
case "$option" in
|
||
1)
|
||
echo
|
||
echo "Provide a name for the client:"
|
||
read -p "Name: " unsanitized_client
|
||
# Allow a limited lenght and set of characters to avoid conflicts
|
||
client=$(sed 's/[^0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-]/_/g' <<< "$unsanitized_client" | cut -c-15)
|
||
while [[ -z "$client" ]] || grep -q "^# BEGIN_PEER $client$" /etc/wireguard/wg0.conf; do
|
||
echo "$client: invalid name."
|
||
read -p "Name: " unsanitized_client
|
||
client=$(sed 's/[^0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-]/_/g' <<< "$unsanitized_client" | cut -c-15)
|
||
done
|
||
echo
|
||
new_client_dns
|
||
new_client_setup
|
||
# Append new client configuration to the WireGuard interface
|
||
wg addconf wg0 <(sed -n "/^# BEGIN_PEER $client/,/^# END_PEER $client/p" /etc/wireguard/wg0.conf)
|
||
echo
|
||
qrencode -t ANSI256UTF8 < "$script_dir"/"$client.conf"
|
||
echo -e '\xE2\x86\x91 That is a QR code containing your client configuration.'
|
||
echo
|
||
echo "$client added. Configuration available in:" "$script_dir"/"$client.conf"
|
||
exit
|
||
;;
|
||
2)
|
||
# This option could be documented a bit better and maybe even be simplified
|
||
# ...but what can I say, I want some sleep too
|
||
number_of_clients=$(grep -c '^# BEGIN_PEER' /etc/wireguard/wg0.conf)
|
||
if [[ "$number_of_clients" = 0 ]]; then
|
||
echo
|
||
echo "There are no existing clients!"
|
||
exit
|
||
fi
|
||
echo
|
||
echo "Select the client to remove:"
|
||
grep '^# BEGIN_PEER' /etc/wireguard/wg0.conf | cut -d ' ' -f 3 | nl -s ') '
|
||
read -p "Client: " client_number
|
||
until [[ "$client_number" =~ ^[0-9]+$ && "$client_number" -le "$number_of_clients" ]]; do
|
||
echo "$client_number: invalid selection."
|
||
read -p "Client: " client_number
|
||
done
|
||
client=$(grep '^# BEGIN_PEER' /etc/wireguard/wg0.conf | cut -d ' ' -f 3 | sed -n "$client_number"p)
|
||
echo
|
||
read -p "Confirm $client removal? [y/N]: " remove
|
||
until [[ "$remove" =~ ^[yYnN]*$ ]]; do
|
||
echo "$remove: invalid selection."
|
||
read -p "Confirm $client removal? [y/N]: " remove
|
||
done
|
||
if [[ "$remove" =~ ^[yY]$ ]]; then
|
||
# The following is the right way to avoid disrupting other active connections:
|
||
# Remove from the live interface
|
||
wg set wg0 peer "$(sed -n "/^# BEGIN_PEER $client$/,\$p" /etc/wireguard/wg0.conf | grep -m 1 PublicKey | cut -d " " -f 3)" remove
|
||
# Remove from the configuration file
|
||
sed -i "/^# BEGIN_PEER $client$/,/^# END_PEER $client$/d" /etc/wireguard/wg0.conf
|
||
echo
|
||
echo "$client removed!"
|
||
else
|
||
echo
|
||
echo "$client removal aborted!"
|
||
fi
|
||
exit
|
||
;;
|
||
3)
|
||
echo
|
||
read -p "Confirm WireGuard removal? [y/N]: " remove
|
||
until [[ "$remove" =~ ^[yYnN]*$ ]]; do
|
||
echo "$remove: invalid selection."
|
||
read -p "Confirm WireGuard removal? [y/N]: " remove
|
||
done
|
||
if [[ "$remove" =~ ^[yY]$ ]]; then
|
||
port=$(grep '^ListenPort' /etc/wireguard/wg0.conf | cut -d " " -f 3)
|
||
if systemctl is-active --quiet firewalld.service; then
|
||
ip=$(firewall-cmd --direct --get-rules ipv4 nat POSTROUTING | grep '\-s 10.7.0.0/24 '"'"'!'"'"' -d 10.7.0.0/24' | grep -oE '[^ ]+$')
|
||
# Using both permanent and not permanent rules to avoid a firewalld reload.
|
||
firewall-cmd --remove-port="$port"/udp
|
||
firewall-cmd --zone=trusted --remove-source=10.7.0.0/24
|
||
firewall-cmd --permanent --remove-port="$port"/udp
|
||
firewall-cmd --permanent --zone=trusted --remove-source=10.7.0.0/24
|
||
firewall-cmd --direct --remove-rule ipv4 nat POSTROUTING 0 -s 10.7.0.0/24 ! -d 10.7.0.0/24 -j SNAT --to "$ip"
|
||
firewall-cmd --permanent --direct --remove-rule ipv4 nat POSTROUTING 0 -s 10.7.0.0/24 ! -d 10.7.0.0/24 -j SNAT --to "$ip"
|
||
if grep -qs 'fddd:2c4:2c4:2c4::1/64' /etc/wireguard/wg0.conf; then
|
||
ip6=$(firewall-cmd --direct --get-rules ipv6 nat POSTROUTING | grep '\-s fddd:2c4:2c4:2c4::/64 '"'"'!'"'"' -d fddd:2c4:2c4:2c4::/64' | grep -oE '[^ ]+$')
|
||
firewall-cmd --zone=trusted --remove-source=fddd:2c4:2c4:2c4::/64
|
||
firewall-cmd --permanent --zone=trusted --remove-source=fddd:2c4:2c4:2c4::/64
|
||
firewall-cmd --direct --remove-rule ipv6 nat POSTROUTING 0 -s fddd:2c4:2c4:2c4::/64 ! -d fddd:2c4:2c4:2c4::/64 -j SNAT --to "$ip6"
|
||
firewall-cmd --permanent --direct --remove-rule ipv6 nat POSTROUTING 0 -s fddd:2c4:2c4:2c4::/64 ! -d fddd:2c4:2c4:2c4::/64 -j SNAT --to "$ip6"
|
||
fi
|
||
else
|
||
systemctl disable --now wg-iptables.service
|
||
rm -f /etc/systemd/system/wg-iptables.service
|
||
fi
|
||
systemctl disable --now wg-quick@wg0.service
|
||
rm -f /etc/systemd/system/wg-quick@wg0.service.d/boringtun.conf
|
||
rm -f /etc/sysctl.d/99-wireguard-forward.conf
|
||
# Different stuff was installed depending on whether BoringTun was used or not
|
||
if [[ "$use_boringtun" -eq 0 ]]; then
|
||
if [[ "$os" == "ubuntu" ]]; then
|
||
# Ubuntu
|
||
rm -rf /etc/wireguard/
|
||
apt-get remove --purge -y wireguard wireguard-tools
|
||
elif [[ "$os" == "debian" ]]; then
|
||
# Debian
|
||
rm -rf /etc/wireguard/
|
||
apt-get remove --purge -y wireguard wireguard-tools
|
||
elif [[ "$os" == "centos" ]]; then
|
||
# CentOS
|
||
dnf remove -y wireguard-tools
|
||
rm -rf /etc/wireguard/
|
||
elif [[ "$os" == "fedora" ]]; then
|
||
# Fedora
|
||
dnf remove -y wireguard-tools
|
||
rm -rf /etc/wireguard/
|
||
fi
|
||
else
|
||
{ crontab -l 2>/dev/null | grep -v '/usr/local/sbin/boringtun-upgrade' ; } | crontab -
|
||
if [[ "$os" == "ubuntu" ]]; then
|
||
# Ubuntu
|
||
rm -rf /etc/wireguard/
|
||
apt-get remove --purge -y wireguard-tools
|
||
elif [[ "$os" == "debian" ]]; then
|
||
# Debian
|
||
rm -rf /etc/wireguard/
|
||
apt-get remove --purge -y wireguard-tools
|
||
elif [[ "$os" == "centos" ]]; then
|
||
# CentOS
|
||
dnf remove -y wireguard-tools
|
||
rm -rf /etc/wireguard/
|
||
elif [[ "$os" == "fedora" ]]; then
|
||
# Fedora
|
||
dnf remove -y wireguard-tools
|
||
rm -rf /etc/wireguard/
|
||
fi
|
||
rm -f /usr/local/sbin/boringtun /usr/local/sbin/boringtun-upgrade
|
||
fi
|
||
echo
|
||
echo "WireGuard removed!"
|
||
else
|
||
echo
|
||
echo "WireGuard removal aborted!"
|
||
fi
|
||
exit
|
||
;;
|
||
4)
|
||
exit
|
||
;;
|
||
esac
|
||
fi |