mirror of
https://github.com/angristan/wireguard-install.git
synced 2024-11-01 11:12:31 +00:00
288 lines
9.4 KiB
Bash
288 lines
9.4 KiB
Bash
#!/bin/bash
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#
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# About: Install WireGuard automatically
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# Author: angristan
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# Thanks : shyamjos, outis151, Leopere, ucawen, Shagon94, shoujii, liberodark
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# License: MIT
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version="1.0.0"
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echo "Welcome on WireGuard Install Script $version"
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#=================================================
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# CHECK ROOT
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#=================================================
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if [[ $(id -u) -ne 0 ]] ; then echo "Please run as root" ; exit 1 ; fi
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#=================================================
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# RETRIEVE ARGUMENTS FROM THE MANIFEST AND VAR
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#=================================================
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distribution=$(cat /etc/*release | grep "PRETTY_NAME" | sed 's/PRETTY_NAME=//g' | sed 's/["]//g' | awk '{print $1}')
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usage ()
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{
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echo "usage: -install or -remove"
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echo "options:"
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echo "-install: Install WireGuard"
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echo "-remove: Remove WireGuard"
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echo "-h: Show help"
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}
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detect_bad(){
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if [ "$(systemd-detect-virt)" == "openvz" ]; then
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echo "OpenVZ is not supported"
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exit
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fi
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if [ "$(systemd-detect-virt)" == "lxc" ]; then
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echo "LXC is not supported (yet)."
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echo "WireGuard can technically run in an LXC container,"
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echo "but the kernel module has to be installed on the host,"
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echo "the container has to be run with some specific parameters"
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echo "and only the tools need to be installed in the container."
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exit
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fi
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}
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options(){
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# Detect public IPv4 address and pre-fill for the user
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SERVER_PUB_IPV4=$(ip addr | grep 'inet' | grep -v inet6 | grep -vE '127\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | grep -oE '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | head -1)
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read -rp "IPv4 or IPv6 public address: " -e -i "$SERVER_PUB_IPV4" SERVER_PUB_IP
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# Detect public interface and pre-fill for the user
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SERVER_PUB_NIC="$(ip -4 route ls | grep default | grep -Po '(?<=dev )(\S+)' | head -1)"
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read -rp "Public interface: " -e -i "$SERVER_PUB_NIC" SERVER_PUB_NIC
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SERVER_WG_NIC="wg0"
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read -rp "WireGuard interface name: " -e -i "$SERVER_WG_NIC" SERVER_WG_NIC
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SERVER_WG_IPV4="10.66.66.1"
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read -rp "Server's WireGuard IPv4 " -e -i "$SERVER_WG_IPV4" SERVER_WG_IPV4
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SERVER_WG_IPV6="fd42:42:42::1"
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read -rp "Server's WireGuard IPv6 " -e -i "$SERVER_WG_IPV6" SERVER_WG_IPV6
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SERVER_PORT=1194
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read -rp "Server's WireGuard port " -e -i "$SERVER_PORT" SERVER_PORT
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CLIENT_WG_IPV4="10.66.66.2"
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read -rp "Client's WireGuard IPv4 " -e -i "$CLIENT_WG_IPV4" CLIENT_WG_IPV4
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CLIENT_WG_IPV6="fd42:42:42::2"
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read -rp "Client's WireGuard IPv6 " -e -i "$CLIENT_WG_IPV6" CLIENT_WG_IPV6
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# Adguard DNS by default
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CLIENT_DNS_1="176.103.130.130"
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read -rp "First DNS resolver to use for the client: " -e -i "$CLIENT_DNS_1" CLIENT_DNS_1
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CLIENT_DNS_2="176.103.130.131"
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read -rp "Second DNS resolver to use for the client: " -e -i "$CLIENT_DNS_2" CLIENT_DNS_2
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# Ask for pre-shared symmetric key
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IS_PRE_SYMM="y"
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read -rp "Want to use pre-shared symmetric key? [Y/n]: " -e -i "$IS_PRE_SYMM" IS_PRE_SYMM
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if [[ $SERVER_PUB_IP =~ .*:.* ]]
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then
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echo "IPv6 Detected"
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ENDPOINT="[$SERVER_PUB_IP]:$SERVER_PORT"
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else
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echo "IPv4 Detected"
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ENDPOINT="$SERVER_PUB_IP:$SERVER_PORT"
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fi
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}
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remove_wg(){
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echo "Remove WireGuard Server ($distribution)"
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# Check OS & WireGuard
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if command -v wg-quick > /dev/null 2>&1; then
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if [ "$distribution" = "CentOS" ] || [ "$distribution" = "Red\ Hat" ] || [ "$distribution" = "Oracle" ]; then
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systemctl stop wg-quick@wg0.service > /dev/null 2>&1
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systemctl disable wg-quick@wg0.service > /dev/null 2>&1
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sudo rm /etc/yum.repos.d/wireguard.repo
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yum remove -y wireguard-dkms wireguard-tools > /dev/null 2>&1
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rm -rf /etc/wireguard
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rm -f /etc/sysctl.d/wg.conf
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sysctl --system
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elif [ "$distribution" = "Fedora" ]; then
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systemctl stop wg-quick@wg0.service > /dev/null 2>&1
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systemctl disable wg-quick@wg0.service > /dev/null 2>&1
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dnf copr disable jdoss/wireguard > /dev/null 2>&1
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dnf remove -y wireguard-dkms wireguard-tools iptables > /dev/null 2>&1
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rm -rf /etc/wireguard
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rm -f /etc/sysctl.d/wg.conf
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sysctl --system
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elif [ "$distribution" = "Ubuntu" ] || [ "$distribution" = "Deepin" ]; then
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systemctl stop wg-quick@wg0.service > /dev/null 2>&1
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systemctl disable wg-quick@wg0.service > /dev/null 2>&1
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apt-get remove -y wireguard --force-yes > /dev/null 2>&1
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rm -rf /etc/wireguard
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rm -f /etc/sysctl.d/wg.conf
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sysctl --system
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elif [ "$distribution" = "Debian" ] || [ "$distribution" = "Raspbian" ]; then
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systemctl stop wg-quick@wg0.service > /dev/null 2>&1
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systemctl disable wg-quick@wg0.service > /dev/null 2>&1
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apt-get install -y wireguard iptables --force-yes > /dev/null 2>&1
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rm -rf /etc/wireguard
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rm -f /etc/sysctl.d/wg.conf
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sysctl --system
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elif [ "$distribution" = "Manjaro" ] || [ "$distribution" = "Arch\ Linux" ]; then
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systemctl stop wg-quick@wg0.service > /dev/null 2>&1
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systemctl disable wg-quick@wg0.service > /dev/null 2>&1
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pacman -R wireguard-dkms wireguard-tools --noconfirm > /dev/null 2>&1
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rm -rf /etc/wireguard
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rm -f /etc/sysctl.d/wg.conf
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sysctl --system
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fi
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fi
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}
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install_wg(){
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echo "Install WireGuard Server ($distribution)"
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# Check OS & WireGuard
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if ! command -v wg-quick > /dev/null 2>&1; then
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if [ "$distribution" = "CentOS" ] || [ "$distribution" = "Red\ Hat" ] || [ "$distribution" = "Oracle" ]; then
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curl -Lo /etc/yum.repos.d/wireguard.repo https://copr.fedorainfracloud.org/coprs/jdoss/wireguard/repo/epel-7/jdoss-wireguard-epel-7.repo > /dev/null 2>&1
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yum install -y epel-release > /dev/null 2>&1
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yum install -y wireguard-dkms wireguard-tools iptables > /dev/null 2>&1
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elif [ "$distribution" = "Fedora" ]; then
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dnf copr enable jdoss/wireguard > /dev/null 2>&1
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dnf install -y wireguard-dkms wireguard-tools iptables > /dev/null 2>&1
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elif [ "$distribution" = "Ubuntu" ] || [ "$distribution" = "Deepin" ]; then
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add-apt-repository ppa:wireguard/wireguard
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apt-get update > /dev/null 2>&1
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apt-get install -y "linux-headers-$(uname -r)" > /dev/null 2>&1
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apt-get install -y wireguard iptables resolvconf --force-yes > /dev/null 2>&1
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elif [ "$distribution" = "Debian" ] || [ "$distribution" = "Raspbian" ]; then
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add-apt-repository ppa:wireguard/wireguard
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apt-get update > /dev/null 2>&1
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apt-get install -y "linux-headers-$(uname -r)" > /dev/null 2>&1
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apt-get install -y wireguard iptables resolvconf --force-yes > /dev/null 2>&1
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elif [ "$distribution" = "Manjaro" ] || [ "$distribution" = "Arch\ Linux" ]; then
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pacman -S linux-headers dkms --noconfirm > /dev/null 2>&1
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pacman -S wireguard-dkms wireguard-tools iptables openresolv --noconfirm > /dev/null 2>&1
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fi
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fi
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}
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configure_wg(){
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# Make sure the directory exists (this does not seem the be the case on fedora)
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mkdir /etc/wireguard > /dev/null 2>&1
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# Generate key pair for the server
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SERVER_PRIV_KEY=$(wg genkey)
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SERVER_PUB_KEY=$(echo "$SERVER_PRIV_KEY" | wg pubkey)
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# Generate key pair for the client
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CLIENT_PRIV_KEY=$(wg genkey)
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CLIENT_PUB_KEY=$(echo "$CLIENT_PRIV_KEY" | wg pubkey)
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# Add server interface
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echo "[Interface]
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Address = $SERVER_WG_IPV4/24,$SERVER_WG_IPV6/64
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ListenPort = $SERVER_PORT
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PrivateKey = $SERVER_PRIV_KEY
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PostUp = iptables -A FORWARD -i $SERVER_WG_NIC -j ACCEPT; iptables -t nat -A POSTROUTING -o $SERVER_PUB_NIC -j MASQUERADE; ip6tables -A FORWARD -i $SERVER_WG_NIC -j ACCEPT; ip6tables -t nat -A POSTROUTING -o $SERVER_PUB_NIC -j MASQUERADE
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PostDown = iptables -D FORWARD -i $SERVER_WG_NIC -j ACCEPT; iptables -t nat -D POSTROUTING -o $SERVER_PUB_NIC -j MASQUERADE; ip6tables -D FORWARD -i $SERVER_WG_NIC -j ACCEPT; ip6tables -t nat -D POSTROUTING -o $SERVER_PUB_NIC -j MASQUERADE" > "/etc/wireguard/$SERVER_WG_NIC.conf"
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# Add the client as a peer to the server
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echo "[Peer]
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PublicKey = $CLIENT_PUB_KEY
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AllowedIPs = $CLIENT_WG_IPV4/32,$CLIENT_WG_IPV6/128" >> "/etc/wireguard/$SERVER_WG_NIC.conf"
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# Create client file with interface
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echo "[Interface]
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PrivateKey = $CLIENT_PRIV_KEY
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Address = $CLIENT_WG_IPV4/24,$CLIENT_WG_IPV6/64
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DNS = $CLIENT_DNS_1,$CLIENT_DNS_2" > "$HOME/$SERVER_WG_NIC-client.conf"
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# Add the server as a peer to the client
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echo "
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[Peer]
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PublicKey = $SERVER_PUB_KEY
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Endpoint = $ENDPOINT
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AllowedIPs = 0.0.0.0/0,::/0" >> "$HOME/$SERVER_WG_NIC-client.conf"
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# Add pre shared symmetric key to respective files
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case "$IS_PRE_SYMM" in
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[yY][eE][sS]|[yY])
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CLIENT_SYMM_PRE_KEY=$( wg genpsk )
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echo "PresharedKey = $CLIENT_SYMM_PRE_KEY" >> "/etc/wireguard/$SERVER_WG_NIC.conf"
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echo "PresharedKey = $CLIENT_SYMM_PRE_KEY" >> "$HOME/$SERVER_WG_NIC-client.conf"
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;;
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esac
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chmod 600 -R /etc/wireguard/
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# Enable routing on the server
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echo "net.ipv4.ip_forward = 1
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net.ipv6.conf.all.forwarding = 1" > /etc/sysctl.d/wg.conf
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sysctl --system
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systemctl start "wg-quick@$SERVER_WG_NIC"
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systemctl enable "wg-quick@$SERVER_WG_NIC"
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}
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arg_install_wg(){
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# Install WireGuard
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detect_bad
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options
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install_wg
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configure_wg
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}
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arg_remove_wg(){
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# Remove WireGuard
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detect_bad
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remove_wg
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}
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parse_args ()
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{
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while [ $# -ne 0 ]
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do
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case "${1}" in
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-install)
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shift
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arg_install_wg >&2
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;;
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-remove)
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shift
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arg_remove_wg >&2
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;;
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-h|--help)
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usage
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exit 0
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;;
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*)
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echo "Invalid argument : ${1}" >&2
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usage >&2
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exit 1
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;;
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esac
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shift
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done
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}
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parse_args "$@"
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