mirror of
https://github.com/angristan/wireguard-install.git
synced 2024-06-01 03:00:47 +00:00
Better variables escaping
This commit is contained in:
randomshell
parent
ca2178cff2
commit
541019587c
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@ -4,7 +4,7 @@
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# https://github.com/angristan/wireguard-install
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function isRoot() {
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if [ "$EUID" -ne 0 ]; then
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if [ "${EUID}" -ne 0 ]; then
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echo "You need to run this script as root"
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exit 1
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fi
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@ -31,11 +31,11 @@ function checkOS() {
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if [[ -e /etc/debian_version ]]; then
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# shellcheck disable=SC1091
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source /etc/os-release
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OS=$ID # debian or ubuntu
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OS="${ID}" # debian or ubuntu
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elif [[ -e /etc/fedora-release ]]; then
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# shellcheck disable=SC1091
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source /etc/os-release
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OS=$ID
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OS="${ID}"
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elif [[ -e /etc/centos-release ]]; then
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OS=centos
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elif [[ -e /etc/arch-release ]]; then
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@ -62,35 +62,35 @@ function installQuestions() {
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# Detect public IPv4 or IPv6 address and pre-fill for the user
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SERVER_PUB_IP=$(ip -4 addr | sed -ne 's|^.* inet \([^/]*\)/.* scope global.*$|\1|p' | head -1)
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if [[ -z $SERVER_PUB_IP ]]; then
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if [[ -z "${SERVER_PUB_IP}" ]]; then
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# Detect public IPv6 address
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SERVER_PUB_IP=$(ip -6 addr | sed -ne 's|^.* inet6 \([^/]*\)/.* scope global.*$|\1|p' | head -1)
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fi
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read -rp "IPv4 or IPv6 public address: " -e -i "$SERVER_PUB_IP" SERVER_PUB_IP
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read -rp "IPv4 or IPv6 public address: " -e -i "${SERVER_PUB_IP}" SERVER_PUB_IP
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# Detect public interface and pre-fill for the user
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SERVER_NIC="$(ip -4 route ls | grep default | grep -Po '(?<=dev )(\S+)' | head -1)"
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until [[ "$SERVER_PUB_NIC" =~ ^[a-zA-Z0-9_]+$ ]]; do
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read -rp "Public interface: " -e -i "$SERVER_NIC" SERVER_PUB_NIC
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until [[ "${SERVER_PUB_NIC}" =~ ^[a-zA-Z0-9_]+$ ]]; do
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read -rp "Public interface: " -e -i "${SERVER_NIC}" SERVER_PUB_NIC
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done
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until [[ "$SERVER_WG_NIC" =~ ^[a-zA-Z0-9_]+$ ]]; do
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until [[ "${SERVER_WG_NIC}" =~ ^[a-zA-Z0-9_]+$ ]]; do
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# shellcheck disable=SC2034
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read -rp "WireGuard interface name: " -e -i wg0 SERVER_WG_NIC
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done
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until [[ "$SERVER_WG_IPV4" =~ ^([0-9]{1,3}\.){3}1$ ]]; do
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until [[ "${SERVER_WG_IPV4}" =~ ^([0-9]{1,3}\.){3}1$ ]]; do
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read -rp "Server's WireGuard IPv4 [x.x.x.1]: " -e -i 10.66.66.1 SERVER_WG_IPV4
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done
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until [[ "$SERVER_WG_IPV6" =~ ^([a-f0-9]{1,4}:){3,4}:1$ ]]; do
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until [[ "${SERVER_WG_IPV6}" =~ ^([a-f0-9]{1,4}:){3,4}:1$ ]]; do
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read -rp "Server's WireGuard IPv6 [x:x:x::1]: " -e -i fd42:42:42::1 SERVER_WG_IPV6
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done
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# Generate random number within private ports range
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RANDOM_PORT=$(shuf -i49152-65535 -n1)
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until [[ $SERVER_PORT =~ ^[0-9]+$ ]] && [ "$SERVER_PORT" -ge 1 ] && [ "$SERVER_PORT" -le 65535 ]; do
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read -rp "Server's WireGuard port [1-65535]: " -e -i "$RANDOM_PORT" SERVER_PORT
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until [[ "${SERVER_PORT}" =~ ^[0-9]+$ ]] && [ "${SERVER_PORT}" -ge 1 ] && [ "${SERVER_PORT}" -le 65535 ]; do
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read -rp "Server's WireGuard port [1-65535]: " -e -i "${RANDOM_PORT}" SERVER_PORT
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done
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echo ""
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@ -104,31 +104,31 @@ function installWireGuard() {
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installQuestions
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# Install WireGuard tools and module
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if [[ $OS == 'ubuntu' ]]; then
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if [[ "${OS}" == 'ubuntu' ]]; then
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apt-get install -y software-properties-common
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add-apt-repository -y ppa:wireguard/wireguard
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apt-get update
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apt-get install -y "linux-headers-$(uname -r)"
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apt-get install -y wireguard iptables resolvconf qrencode
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elif [[ $OS == 'debian' ]]; then
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elif [[ "${OS}" == 'debian' ]]; then
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echo "deb http://deb.debian.org/debian/ unstable main" >/etc/apt/sources.list.d/unstable.list
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printf 'Package: *\nPin: release a=unstable\nPin-Priority: 90\n' >/etc/apt/preferences.d/limit-unstable
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apt update
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apt-get install -y "linux-headers-$(uname -r)"
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apt-get install -y wireguard iptables resolvconf qrencode
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apt-get install -y bc # mitigate https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=956869
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elif [[ $OS == 'fedora' ]]; then
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if [[ $VERSION_ID -lt 32 ]]; then
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elif [[ "${OS}" == 'fedora' ]]; then
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if [[ "${VERSION_ID}" -lt 32 ]]; then
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dnf install -y dnf-plugins-core
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dnf copr enable -y jdoss/wireguard
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dnf install -y wireguard-dkms
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fi
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dnf install -y wireguard-tools iptables qrencode
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elif [[ $OS == 'centos' ]]; then
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elif [[ "${OS}" == 'centos' ]]; 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
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yum -y install epel-release
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yum -y install wireguard-dkms wireguard-tools iptables qrencode
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elif [[ $OS == 'arch' ]]; then
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elif [[ "${OS}" == 'arch' ]]; then
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pacman -S --noconfirm linux-headers
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pacman -S --noconfirm wireguard-tools iptables qrencode
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fi
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@ -139,33 +139,33 @@ function installWireGuard() {
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chmod 600 -R /etc/wireguard/
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SERVER_PRIV_KEY=$(wg genkey)
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SERVER_PUB_KEY=$(echo "$SERVER_PRIV_KEY" | wg pubkey)
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SERVER_PUB_KEY=$(echo "${SERVER_PRIV_KEY}" | wg pubkey)
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# Save WireGuard settings
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echo "SERVER_PUB_IP=$SERVER_PUB_IP
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SERVER_PUB_NIC=$SERVER_PUB_NIC
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SERVER_WG_NIC=$SERVER_WG_NIC
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SERVER_WG_IPV4=$SERVER_WG_IPV4
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SERVER_WG_IPV6=$SERVER_WG_IPV6
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SERVER_PORT=$SERVER_PORT
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SERVER_PRIV_KEY=$SERVER_PRIV_KEY
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SERVER_PUB_KEY=$SERVER_PUB_KEY" >/etc/wireguard/params
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echo "SERVER_PUB_IP=${SERVER_PUB_IP}
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SERVER_PUB_NIC=${SERVER_PUB_NIC}
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SERVER_WG_NIC=${SERVER_WG_NIC}
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SERVER_WG_IPV4=${SERVER_WG_IPV4}
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SERVER_WG_IPV6=${SERVER_WG_IPV6}
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SERVER_PORT=${SERVER_PORT}
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SERVER_PRIV_KEY=${SERVER_PRIV_KEY}
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SERVER_PUB_KEY=${SERVER_PUB_KEY}" >/etc/wireguard/params
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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 = $SERVER_PRIV_KEY" >"/etc/wireguard/$SERVER_WG_NIC.conf"
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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 = ${SERVER_PRIV_KEY}" >"/etc/wireguard/${SERVER_WG_NIC}.conf"
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if [ -x "$(command -v firewall-cmd)" ]; then
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FIREWALLD_IPV4_ADDRESS=$(echo "$SERVER_WG_IPV4" | cut -d"." -f1-3)".0"
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FIREWALLD_IPV4_ADDRESS=$(echo "${SERVER_WG_IPV4}" | cut -d"." -f1-3)".0"
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# shellcheck disable=SC2001
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FIREWALLD_IPV6_ADDRESS=$(echo "$SERVER_WG_IPV6" | sed 's/:[^:]*$/:0/')
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echo "PostUp = firewall-cmd --add-port $SERVER_PORT/udp && firewall-cmd --add-rich-rule='rule family=ipv4 source address=$FIREWALLD_IPV4_ADDRESS/24 masquerade' && firewall-cmd --add-rich-rule='rule family=ipv6 source address=$FIREWALLD_IPV6_ADDRESS/24 masquerade'
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PostDown = firewall-cmd --remove-port $SERVER_PORT/udp && firewall-cmd --remove-rich-rule='rule family=ipv4 source address=$FIREWALLD_IPV4_ADDRESS/24 masquerade' && firewall-cmd --remove-rich-rule='rule family=ipv6 source address=$FIREWALLD_IPV6_ADDRESS/24 masquerade'" >>"/etc/wireguard/$SERVER_WG_NIC.conf"
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FIREWALLD_IPV6_ADDRESS=$(echo "${SERVER_WG_IPV6}" | sed 's/:[^:]*$/:0/')
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echo "PostUp = firewall-cmd --add-port ${SERVER_PORT}/udp && firewall-cmd --add-rich-rule='rule family=ipv4 source address=${FIREWALLD_IPV4_ADDRESS}/24 masquerade' && firewall-cmd --add-rich-rule='rule family=ipv6 source address=${FIREWALLD_IPV6_ADDRESS}/24 masquerade'
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PostDown = firewall-cmd --remove-port ${SERVER_PORT}/udp && firewall-cmd --remove-rich-rule='rule family=ipv4 source address=${FIREWALLD_IPV4_ADDRESS}/24 masquerade' && firewall-cmd --remove-rich-rule='rule family=ipv6 source address=${FIREWALLD_IPV6_ADDRESS}/24 masquerade'" >>"/etc/wireguard/${SERVER_WG_NIC}.conf"
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else
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echo "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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echo "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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fi
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# Enable routing on the server
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@ -174,22 +174,22 @@ 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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systemctl start "wg-quick@${SERVER_WG_NIC}"
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systemctl enable "wg-quick@${SERVER_WG_NIC}"
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# Check if WireGuard is running
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systemctl is-active --quiet "wg-quick@$SERVER_WG_NIC"
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systemctl is-active --quiet "wg-quick@${SERVER_WG_NIC}"
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WG_RUNNING=$?
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# Warn user about kernel version mismatch with headers
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if [[ $OS =~ (fedora|centos) ]] && [[ $WG_RUNNING -ne 0 ]]; then
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if [[ "${OS}" =~ (fedora|centos) ]] && [[ "${WG_RUNNING}" -ne 0 ]]; then
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echo -e "\nWARNING: WireGuard does not seem to be running."
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echo "Due to kernel mismatch issues on $OS, WireGuard might work if your system is out of date."
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echo "You can check if WireGuard is running with: systemctl status wg-quick@$SERVER_WG_NIC"
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echo "Due to kernel mismatch issues on ${OS}, WireGuard might work if your system is out of date."
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echo "You can check if WireGuard is running with: systemctl status wg-quick@${SERVER_WG_NIC}"
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echo 'If you get something like "Cannot find device wg0", please run:'
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if [[ $OS == 'fedora' ]]; then
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if [[ "${OS}" == 'fedora' ]]; then
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echo "dnf update -y && reboot"
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elif [[ $OS == 'centos' ]]; then
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elif [[ "${OS}" == 'centos' ]]; then
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echo "yum update -y && reboot"
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fi
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fi
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@ -206,22 +206,22 @@ function newClient() {
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ENDPOINT="${SERVER_PUB_IP}:${SERVER_PORT}"
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printf "\n"
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until [[ "$CLIENT_WG_IPV4" =~ ^([0-9]{1,3}\.?){4}$ ]]; do
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until [[ "${CLIENT_WG_IPV4}" =~ ^([0-9]{1,3}\.?){4}$ ]]; do
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read -rp "Client's WireGuard IPv4: " -e -i "${SERVER_WG_IPV4::-1}"2 CLIENT_WG_IPV4
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done
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until [[ "$CLIENT_WG_IPV6" =~ ^([a-f0-9]{1,4}:?:?){3,5} ]]; do
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until [[ "${CLIENT_WG_IPV6}" =~ ^([a-f0-9]{1,4}:?:?){3,5} ]]; do
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read -rp "Client's WireGuard IPv6 : " -e -i "${SERVER_WG_IPV6::-1}"2 CLIENT_WG_IPV6
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done
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# Adguard DNS by default
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until [[ $CLIENT_DNS_1 =~ ^((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$ ]]; do
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until [[ "${CLIENT_DNS_1}" =~ ^((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$ ]]; do
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read -rp "First DNS resolver to use for the client: " -e -i 176.103.130.130 CLIENT_DNS_1
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done
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until [[ $CLIENT_DNS_2 =~ ^((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$ ]]; do
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until [[ "${CLIENT_DNS_2}" =~ ^((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$ ]]; do
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read -rp "Second DNS resolver to use for the client (optional): " -e -i 176.103.130.131 CLIENT_DNS_2
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if [[ $CLIENT_DNS_2 == "" ]]; then
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CLIENT_DNS_2=$CLIENT_DNS_1
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if [[ "${CLIENT_DNS_2}" == "" ]]; then
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CLIENT_DNS_2="${CLIENT_DNS_1}"
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fi
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done
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@ -232,34 +232,34 @@ function newClient() {
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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 "$CLIENT_PRIV_KEY" | wg pubkey)
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CLIENT_PUB_KEY=$(echo "${CLIENT_PRIV_KEY}" | wg pubkey)
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CLIENT_PRE_SHARED_KEY=$(wg genpsk)
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# Create client file and add the server as a peer
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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
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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}
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[Peer]
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PublicKey = $SERVER_PUB_KEY
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PresharedKey = $CLIENT_PRE_SHARED_KEY
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Endpoint = $ENDPOINT
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AllowedIPs = 0.0.0.0/0,::/0" >>"$HOME/$SERVER_WG_NIC-client-$CLIENT_NAME.conf"
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PublicKey = ${SERVER_PUB_KEY}
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PresharedKey = ${CLIENT_PRE_SHARED_KEY}
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Endpoint = ${ENDPOINT}
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AllowedIPs = 0.0.0.0/0,::/0" >>"${HOME}/${SERVER_WG_NIC}-client-${CLIENT_NAME}.conf"
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# Add the client as a peer to the server
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echo -e "\n[Peer]
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PublicKey = $CLIENT_PUB_KEY
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PresharedKey = $CLIENT_PRE_SHARED_KEY
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AllowedIPs = $CLIENT_WG_IPV4/32,$CLIENT_WG_IPV6/128" >>"/etc/wireguard/$SERVER_WG_NIC.conf"
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PublicKey = ${CLIENT_PUB_KEY}
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PresharedKey = ${CLIENT_PRE_SHARED_KEY}
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AllowedIPs = ${CLIENT_WG_IPV4}/32,${CLIENT_WG_IPV6}/128" >>"/etc/wireguard/${SERVER_WG_NIC}.conf"
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systemctl restart "wg-quick@$SERVER_WG_NIC"
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systemctl restart "wg-quick@${SERVER_WG_NIC}"
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echo -e "\nHere is your client config file as a QR Code:"
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qrencode -t ansiutf8 -l L <"$HOME/$SERVER_WG_NIC-client-$CLIENT_NAME.conf"
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qrencode -t ansiutf8 -l L <"${HOME}/${SERVER_WG_NIC}-client-${CLIENT_NAME}.conf"
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echo "It is also available in $HOME/$SERVER_WG_NIC-client-$CLIENT_NAME.conf"
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echo "It is also available in ${HOME}/${SERVER_WG_NIC}-client-${CLIENT_NAME}.conf"
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}
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function manageMenu() {
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@ -271,10 +271,10 @@ function manageMenu() {
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echo "What do you want to do?"
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echo " 1) Add a new user"
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echo " 2) Exit"
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until [[ $MENU_OPTION =~ ^[1-2]$ ]]; do
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until [[ "${MENU_OPTION}" =~ ^[1-2]$ ]]; do
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read -rp "Select an option [1-2]: " MENU_OPTION
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done
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case $MENU_OPTION in
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case "${MENU_OPTION}" in
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1)
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newClient
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;;
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