mirror of
https://github.com/pivpn/pivpn.git
synced 2024-10-18 13:43:32 +00:00
2319 lines
81 KiB
Bash
Executable file
2319 lines
81 KiB
Bash
Executable file
#!/usr/bin/env bash
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# PiVPN: Trivial OpenVPN or WireGuard setup and configuration
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# Easiest setup and mangement of OpenVPN or WireGuard on Raspberry Pi
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# https://pivpn.io
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# Heavily adapted from the pi-hole.net project and...
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# https://github.com/StarshipEngineer/OpenVPN-Setup/
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#
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# Install with this command (from your Pi):
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#
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# curl -L https://install.pivpn.io | bash
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# Make sure you have `curl` installed
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# timestamp 2020/5/24 15:53BST
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######## VARIABLES #########
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pivpnGitUrl="https://github.com/pivpn/pivpn.git"
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#pivpnGitUrl="/home/pi/repos/pivpn"
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setupVarsFile="setupVars.conf"
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setupConfigDir="/etc/pivpn"
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tempsetupVarsFile="/tmp/setupVars.conf"
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pivpnFilesDir="/usr/local/src/pivpn"
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pivpnScriptDir="/opt/pivpn"
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piholeSetupVars="/etc/pihole/setupVars.conf"
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dnsmasqConfig="/etc/dnsmasq.d/02-pivpn.conf"
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dhcpcdFile="/etc/dhcpcd.conf"
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subnetClass="24"
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debianOvpnUserGroup="openvpn:openvpn"
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# OpenVPN GPG fingerprint, you can look it up at https://keyserver.ubuntu.com (prepend '0x' before it)
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OPENVPN_KEY_ID="30EBF4E73CCE63EEE124DD278E6DA8B4E158C569"
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######## PKG Vars ########
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PKG_MANAGER="apt-get"
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PKG_CACHE="/var/lib/apt/lists/"
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### FIXME: quoting UPDATE_PKG_CACHE and PKG_INSTALL hangs the script, shellcheck SC2086
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UPDATE_PKG_CACHE="${PKG_MANAGER} update"
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PKG_INSTALL="${PKG_MANAGER} --yes --no-install-recommends install"
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PKG_COUNT="${PKG_MANAGER} -s -o Debug::NoLocking=true upgrade | grep -c ^Inst || true"
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# Dependencies that are required by the script, regardless of the VPN protocol chosen
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BASE_DEPS=(git tar wget curl grep dnsutils whiptail net-tools bsdmainutils)
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# Dependencies that where actually installed by the script. For example if the script requires
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# grep and dnsutils but dnsutils is already installed, we save grep here. This way when uninstalling
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# PiVPN we won't prompt to remove packages that may have been installed by the user for other reasons
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INSTALLED_PACKAGES=()
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######## URLs ########
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easyrsaVer="3.0.7"
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easyrsaRel="https://github.com/OpenVPN/easy-rsa/releases/download/v${easyrsaVer}/EasyRSA-${easyrsaVer}.tgz"
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# Fallback url for the OpenVPN key
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OPENVPN_KEY_URL="https://swupdate.openvpn.net/repos/repo-public.gpg"
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######## Undocumented Flags. Shhh ########
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runUnattended=false
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skipSpaceCheck=false
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reconfigure=false
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showUnsupportedNICs=false
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######## SCRIPT ########
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# Find the rows and columns. Will default to 80x24 if it can not be detected.
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screen_size=$(stty size 2>/dev/null || echo 24 80)
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rows=$(echo "$screen_size" | awk '{print $1}')
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columns=$(echo "$screen_size" | awk '{print $2}')
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# Divide by two so the dialogs take up half of the screen, which looks nice.
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r=$(( rows / 2 ))
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c=$(( columns / 2 ))
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# Unless the screen is tiny
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r=$(( r < 20 ? 20 : r ))
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c=$(( c < 70 ? 70 : c ))
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# Override localization settings so the output is in English language.
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export LC_ALL=C
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main(){
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######## FIRST CHECK ########
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# Must be root to install
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echo ":::"
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if [[ $EUID -eq 0 ]];then
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echo "::: You are root."
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else
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echo "::: sudo will be used for the install."
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# Check if it is actually installed
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# If it isn't, exit because the install cannot complete
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if [[ $(dpkg-query -s sudo) ]];then
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export SUDO="sudo"
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export SUDOE="sudo -E"
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else
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echo "::: Please install sudo or run this as root."
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exit 1
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fi
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fi
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# Check arguments for the undocumented flags
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for ((i=1; i <= "$#"; i++)); do
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j="$((i+1))"
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case "${!i}" in
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"--skip-space-check" ) skipSpaceCheck=true;;
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"--unattended" ) runUnattended=true; unattendedConfig="${!j}";;
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"--reconfigure" ) reconfigure=true;;
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"--show-unsupported-nics" ) showUnsupportedNICs=true;;
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esac
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done
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if [[ "${runUnattended}" == true ]]; then
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echo "::: --unattended passed to install script, no whiptail dialogs will be displayed"
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if [ -z "$unattendedConfig" ]; then
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echo "::: No configuration file passed"
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exit 1
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else
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if [ -r "$unattendedConfig" ]; then
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# shellcheck disable=SC1090
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source "$unattendedConfig"
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else
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echo "::: Can't open $unattendedConfig"
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exit 1
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fi
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fi
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fi
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# see which setup already exists
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if [ -r "${setupConfigDir}/wireguard/${setupVarsFile}" ]; then
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setupVars="${setupConfigDir}/wireguard/${setupVarsFile}"
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elif [ -r "${setupConfigDir}/openvpn/${setupVarsFile}" ]; then
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setupVars="${setupConfigDir}/openvpn/${setupVarsFile}"
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fi
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if [ -r "$setupVars" ]; then
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if [[ "${reconfigure}" == true ]]; then
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echo "::: --reconfigure passed to install script, will reinstall PiVPN overwriting existing settings"
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UpdateCmd="Reconfigure"
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elif [[ "${runUnattended}" == true ]]; then
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### What should the script do when passing --unattended to an existing installation?
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UpdateCmd="Reconfigure"
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else
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askAboutExistingInstall ${setupVars}
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fi
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fi
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if [ -z "$UpdateCmd" ] || [ "$UpdateCmd" = "Reconfigure" ]; then
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:
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elif [ "$UpdateCmd" = "Update" ]; then
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$SUDO ${pivpnScriptDir}/update.sh "$@"
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exit 0
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elif [ "$UpdateCmd" = "Repair" ]; then
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# shellcheck disable=SC1090
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source "$setupVars"
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runUnattended=true
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fi
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# Check for supported distribution
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distroCheck
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# Checks for hostname Length
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checkHostname
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# Start the installer
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# Verify there is enough disk space for the install
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if [[ "${skipSpaceCheck}" == true ]]; then
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echo "::: --skip-space-check passed to script, skipping free disk space verification!"
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else
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verifyFreeDiskSpace
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fi
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updatePackageCache
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# Notify user of package availability
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notifyPackageUpdatesAvailable
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# Install packages used by this installation script
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preconfigurePackages
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installDependentPackages BASE_DEPS[@]
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# Display welcome dialogs
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welcomeDialogs
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# Find interfaces and let the user choose one
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chooseInterface
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if [ "$PLAT" != "Raspbian" ]; then
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avoidStaticIPv4Ubuntu
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else
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getStaticIPv4Settings
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if [ -z "$dhcpReserv" ] || [ "$dhcpReserv" -ne 1 ]; then
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setStaticIPv4
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fi
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fi
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# Choose the user for the ovpns
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chooseUser
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# Clone/Update the repos
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cloneOrUpdateRepos
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# Install
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if installPiVPN; then
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echo "::: Install Complete..."
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else
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exit 1
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fi
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# Start services
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restartServices
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# Ask if unattended-upgrades will be enabled
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askUnattendedUpgrades
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if [ "$UNATTUPG" -eq 1 ]; then
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confUnattendedUpgrades
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fi
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# Save installation setting to the final location
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echo "INSTALLED_PACKAGES=(${INSTALLED_PACKAGES[*]})" >> ${tempsetupVarsFile}
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echo "::: Setupfiles copied to ${setupConfigDir}/${VPN}/${setupVarsFile}"
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$SUDO mkdir "${setupConfigDir}/${VPN}/"
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$SUDO cp ${tempsetupVarsFile} "${setupConfigDir}/${VPN}/${setupVarsFile}"
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installScripts
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# Ensure that cached writes reach persistent storage
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echo "::: Flushing writes to disk..."
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sync
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echo "::: done."
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displayFinalMessage
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echo ":::"
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}
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####### FUNCTIONS ##########
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askAboutExistingInstall(){
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opt1a="Update"
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opt1b="Get the latest PiVPN scripts"
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opt2a="Repair"
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opt2b="Reinstall PiVPN using existing settings"
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opt3a="Reconfigure"
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opt3b="Reinstall PiVPN with new settings"
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UpdateCmd=$(whiptail --title "Existing Install Detected!" --menu "\nWe have detected an existing install.\n$1\n\nPlease choose from the following options (Reconfigure can be used to add a second VPN type):" ${r} ${c} 3 \
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"${opt1a}" "${opt1b}" \
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"${opt2a}" "${opt2b}" \
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"${opt3a}" "${opt3b}" 3>&2 2>&1 1>&3) || \
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{ echo "::: Cancel selected. Exiting"; exit 1; }
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echo "::: ${UpdateCmd} option selected."
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}
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# Compatibility, functions to check for supported OS
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# distroCheck, maybeOSSupport, noOSSupport
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distroCheck(){
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# if lsb_release command is on their system
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if command -v lsb_release > /dev/null; then
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PLAT=$(lsb_release -si)
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OSCN=$(lsb_release -sc)
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else # else get info from os-release
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# shellcheck disable=SC1091
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source /etc/os-release
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PLAT=$(awk '{print $1}' <<< "$NAME")
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VER="$VERSION_ID"
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declare -A VER_MAP=(["9"]="stretch" ["10"]="buster" ["16.04"]="xenial" ["18.04"]="bionic" ["20.04"]="focal")
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OSCN=${VER_MAP["${VER}"]}
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fi
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if [ "$PLAT" = "Debian" ] || [ "$PLAT" = "Ubuntu" ]; then
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DPKG_ARCH="$(dpkg --print-architecture)"
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if [ "$DPKG_ARCH" = "amd64" ] || [ "$DPKG_ARCH" = "i386" ]; then
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X86_SYSTEM=1
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else
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X86_SYSTEM=0
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fi
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fi
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case ${PLAT} in
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Debian|Raspbian|Ubuntu)
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case ${OSCN} in
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buster|xenial|bionic|stretch|focal)
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:
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;;
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*)
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maybeOSSupport
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;;
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esac
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;;
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*)
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noOSSupport
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;;
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esac
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echo "PLAT=${PLAT}" > ${tempsetupVarsFile}
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echo "OSCN=${OSCN}" >> ${tempsetupVarsFile}
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}
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noOSSupport(){
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if [ "${runUnattended}" = 'true' ]; then
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echo "::: Invalid OS detected"
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echo "::: We have not been able to detect a supported OS."
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echo "::: Currently this installer supports Raspbian, Debian and Ubuntu."
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exit 1
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fi
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whiptail --msgbox --backtitle "INVALID OS DETECTED" --title "Invalid OS" "We have not been able to detect a supported OS.
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Currently this installer supports Raspbian, Debian and Ubuntu.
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For more details, check our documentation at https://github.com/pivpn/pivpn/wiki " ${r} ${c}
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exit 1
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}
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maybeOSSupport(){
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if [ "${runUnattended}" = 'true' ]; then
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echo "::: OS Not Supported"
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echo "::: You are on an OS that we have not tested but MAY work, continuing anyway..."
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return
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fi
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if (whiptail --backtitle "Untested OS" --title "Untested OS" --yesno "You are on an OS that we have not tested but MAY work.
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Currently this installer supports Raspbian, Debian and Ubuntu.
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For more details about supported OS please check our documentation at https://github.com/pivpn/pivpn/wiki
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Would you like to continue anyway?" ${r} ${c}) then
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echo "::: Did not detect perfectly supported OS but,"
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echo "::: Continuing installation at user's own risk..."
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else
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echo "::: Exiting due to untested OS"
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exit 1
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fi
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}
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checkHostname(){
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###Checks for hostname size
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host_name=$(hostname -s)
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if [[ ! ${#host_name} -le 28 ]]; then
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if [ "${runUnattended}" = 'true' ]; then
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echo "::: Your hostname is too long."
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echo "::: Use 'hostnamectl set-hostname YOURHOSTNAME' to set a new hostname"
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echo "::: It must be less then 28 characters long and it must not use special characters"
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exit 1
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fi
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until [[ ${#host_name} -le 28 && $host_name =~ ^[a-zA-Z0-9][a-zA-Z0-9-]{1,28}$ ]]; do
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host_name=$(whiptail --inputbox "Your hostname is too long.\\nEnter new hostname with less then 28 characters\\nNo special characters allowed." \
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--title "Hostname too long" ${r} ${c} 3>&1 1>&2 2>&3)
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$SUDO hostnamectl set-hostname "${host_name}"
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if [[ ${#host_name} -le 28 && $host_name =~ ^[a-zA-Z0-9][a-zA-Z0-9-]{1,28}$ ]]; then
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echo "::: Hostname valid and length OK, proceeding..."
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fi
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done
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else
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echo "::: Hostname length OK"
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fi
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}
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spinner(){
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local pid=$1
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local delay=0.50
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local spinstr='/-\|'
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while ps a | awk '{print $1}' | grep -q "$pid"; do
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local temp=${spinstr#?}
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printf " [%c] " "${spinstr}"
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local spinstr=${temp}${spinstr%"$temp"}
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sleep ${delay}
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printf "\\b\\b\\b\\b\\b\\b"
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done
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printf " \\b\\b\\b\\b"
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}
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verifyFreeDiskSpace(){
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# If user installs unattended-upgrades we'd need about 60MB so will check for 75MB free
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echo "::: Verifying free disk space..."
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local required_free_kilobytes=76800
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local existing_free_kilobytes
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existing_free_kilobytes=$(df -Pk | grep -m1 '\/$' | awk '{print $4}')
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# - Unknown free disk space , not a integer
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if ! [[ "${existing_free_kilobytes}" =~ ^([0-9])+$ ]]; then
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echo "::: Unknown free disk space!"
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echo "::: We were unable to determine available free disk space on this system."
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if [ "${runUnattended}" = 'true' ]; then
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exit 1
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fi
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echo "::: You may continue with the installation, however, it is not recommended."
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read -r -p "::: If you are sure you want to continue, type YES and press enter :: " response
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case $response in
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[Y][E][S])
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;;
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*)
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echo "::: Confirmation not received, exiting..."
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exit 1
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;;
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esac
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# - Insufficient free disk space
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elif [[ ${existing_free_kilobytes} -lt ${required_free_kilobytes} ]]; then
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echo "::: Insufficient Disk Space!"
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echo "::: Your system appears to be low on disk space. PiVPN recommends a minimum of $required_free_kilobytes KiloBytes."
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echo "::: You only have ${existing_free_kilobytes} KiloBytes free."
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echo "::: If this is a new install on a Raspberry Pi you may need to expand your disk."
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echo "::: Try running 'sudo raspi-config', and choose the 'expand file system option'"
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echo "::: After rebooting, run this installation again. (curl -L https://install.pivpn.io | bash)"
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echo "Insufficient free space, exiting..."
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exit 1
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fi
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}
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updatePackageCache(){
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#Running apt-get update/upgrade with minimal output can cause some issues with
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#requiring user input
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#Check to see if apt-get update has already been run today
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#it needs to have been run at least once on new installs!
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timestamp=$(stat -c %Y ${PKG_CACHE})
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timestampAsDate=$(date -d @"${timestamp}" "+%b %e")
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today=$(date "+%b %e")
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if [ ! "${today}" == "${timestampAsDate}" ]; then
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#update package lists
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echo ":::"
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echo -ne "::: ${PKG_MANAGER} update has not been run today. Running now...\\n"
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# shellcheck disable=SC2086
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$SUDO ${UPDATE_PKG_CACHE} &> /dev/null & spinner $!
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echo " done!"
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fi
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}
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notifyPackageUpdatesAvailable(){
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# Let user know if they have outdated packages on their system and
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# advise them to run a package update at soonest possible.
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echo ":::"
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echo -n "::: Checking ${PKG_MANAGER} for upgraded packages...."
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updatesToInstall=$(eval "${PKG_COUNT}")
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echo " done!"
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echo ":::"
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if [[ ${updatesToInstall} -eq "0" ]]; then
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echo "::: Your system is up to date! Continuing with PiVPN installation..."
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else
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echo "::: There are ${updatesToInstall} updates available for your system!"
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echo "::: We recommend you update your OS after installing PiVPN! "
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echo ":::"
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fi
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}
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preconfigurePackages(){
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# If apt is older than 1.5 we need to install an additional package to add
|
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# support for https repositories that will be used later on
|
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if [[ -f /etc/apt/sources.list ]]; then
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INSTALLED_APT="$(apt-cache policy apt | grep -m1 'Installed: ' | grep -v '(none)' | awk '{print $2}')"
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if dpkg --compare-versions "$INSTALLED_APT" lt 1.5; then
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BASE_DEPS+=("apt-transport-https")
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fi
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fi
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# We set static IP only on Raspbian
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if [ "$PLAT" = "Raspbian" ]; then
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BASE_DEPS+=(dhcpcd5)
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fi
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# if ufw is enabled, configure that.
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# running as root because sometimes the executable is not in the user's $PATH
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if $SUDO bash -c 'command -v ufw' > /dev/null; then
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if $SUDO ufw status | grep -q inactive; then
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USING_UFW=0
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else
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USING_UFW=1
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fi
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else
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USING_UFW=0
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fi
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|
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if [ "$USING_UFW" -eq 0 ]; then
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BASE_DEPS+=(iptables-persistent)
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echo iptables-persistent iptables-persistent/autosave_v4 boolean true | $SUDO debconf-set-selections
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echo iptables-persistent iptables-persistent/autosave_v6 boolean false | $SUDO debconf-set-selections
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fi
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echo "USING_UFW=${USING_UFW}" >> ${tempsetupVarsFile}
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}
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installDependentPackages(){
|
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declare -a TO_INSTALL=()
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|
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# Install packages passed in via argument array
|
|
# No spinner - conflicts with set -e
|
|
declare -a argArray1=("${!1}")
|
|
|
|
for i in "${argArray1[@]}"; do
|
|
echo -n "::: Checking for $i..."
|
|
if dpkg-query -W -f='${Status}' "${i}" 2>/dev/null | grep -q "ok installed"; then
|
|
echo " already installed!"
|
|
else
|
|
echo " not installed!"
|
|
# Add this package to the list of packages in the argument array that need to be installed
|
|
TO_INSTALL+=("${i}")
|
|
fi
|
|
done
|
|
|
|
if command -v debconf-apt-progress > /dev/null; then
|
|
# shellcheck disable=SC2086
|
|
$SUDO debconf-apt-progress -- ${PKG_INSTALL} "${TO_INSTALL[@]}"
|
|
else
|
|
# shellcheck disable=SC2086
|
|
$SUDO ${PKG_INSTALL} "${TO_INSTALL[@]}"
|
|
fi
|
|
|
|
local FAILED=0
|
|
|
|
for i in "${TO_INSTALL[@]}"; do
|
|
if dpkg-query -W -f='${Status}' "${i}" 2>/dev/null | grep -q "ok installed"; then
|
|
echo "::: Package $i successfully installed!"
|
|
# Add this package to the total list of packages that were actually installed by the script
|
|
INSTALLED_PACKAGES+=("${i}")
|
|
else
|
|
echo "::: Failed to install $i!"
|
|
((FAILED++))
|
|
fi
|
|
done
|
|
|
|
if [ "$FAILED" -gt 0 ]; then
|
|
exit 1
|
|
fi
|
|
}
|
|
|
|
welcomeDialogs(){
|
|
if [ "${runUnattended}" = 'true' ]; then
|
|
echo "::: PiVPN Automated Installer"
|
|
echo "::: This installer will transform your ${PLAT} host into an OpenVPN or WireGuard server!"
|
|
echo "::: Initiating network interface"
|
|
return
|
|
fi
|
|
|
|
# Display the welcome dialog
|
|
whiptail --msgbox --backtitle "Welcome" --title "PiVPN Automated Installer" "This installer will transform your Raspberry Pi into an OpenVPN or WireGuard server!" ${r} ${c}
|
|
|
|
# Explain the need for a static address
|
|
whiptail --msgbox --backtitle "Initiating network interface" --title "Static IP Needed" "The PiVPN is a SERVER so it needs a STATIC IP ADDRESS to function properly.
|
|
|
|
In the next section, you can choose to use your current network settings (DHCP) or to manually edit them." ${r} ${c}
|
|
}
|
|
|
|
chooseInterface(){
|
|
# Turn the available interfaces into an array so it can be used with a whiptail dialog
|
|
local interfacesArray=()
|
|
# Number of available interfaces
|
|
local interfaceCount
|
|
# Whiptail variable storage
|
|
local chooseInterfaceCmd
|
|
# Temporary Whiptail options storage
|
|
local chooseInterfaceOptions
|
|
# Loop sentinel variable
|
|
local firstloop=1
|
|
|
|
if [[ "${showUnsupportedNICs}" == true ]]; then
|
|
# Show every network interface, could be useful for those who install PiVPN inside virtual machines
|
|
# or on Raspberry Pis with USB adapters (the loopback interfaces is still skipped)
|
|
availableInterfaces=$(ip -o link | awk '{print $2}' | cut -d':' -f1 | cut -d'@' -f1 | grep -v -w 'lo')
|
|
else
|
|
# Find network interfaces whose state is UP, so as to skip virtual interfaces and the loopback interface
|
|
availableInterfaces=$(ip -o link | awk '/state UP/ {print $2}' | cut -d':' -f1 | cut -d'@' -f1)
|
|
fi
|
|
|
|
if [ -z "$availableInterfaces" ]; then
|
|
echo "::: Could not find any active network interface, exiting"
|
|
exit 1
|
|
else
|
|
while read -r line; do
|
|
mode="OFF"
|
|
if [[ ${firstloop} -eq 1 ]]; then
|
|
firstloop=0
|
|
mode="ON"
|
|
fi
|
|
interfacesArray+=("${line}" "available" "${mode}")
|
|
((interfaceCount++))
|
|
done <<< "${availableInterfaces}"
|
|
fi
|
|
|
|
if [ "${runUnattended}" = 'true' ]; then
|
|
if [ -z "$IPv4dev" ]; then
|
|
if [ $interfaceCount -eq 1 ]; then
|
|
IPv4dev="${availableInterfaces}"
|
|
echo "::: No interface specified, but only ${IPv4dev} is available, using it"
|
|
else
|
|
echo "::: No interface specified and failed to determine one"
|
|
exit 1
|
|
fi
|
|
else
|
|
if ip -o link | grep -qw "${IPv4dev}"; then
|
|
echo "::: Using interface: ${IPv4dev}"
|
|
else
|
|
echo "::: Interface ${IPv4dev} does not exist"
|
|
exit 1
|
|
fi
|
|
fi
|
|
echo "IPv4dev=${IPv4dev}" >> ${tempsetupVarsFile}
|
|
return
|
|
else
|
|
if [ "$interfaceCount" -eq 1 ]; then
|
|
IPv4dev="${availableInterfaces}"
|
|
echo "IPv4dev=${IPv4dev}" >> ${tempsetupVarsFile}
|
|
return
|
|
fi
|
|
fi
|
|
|
|
chooseInterfaceCmd=(whiptail --separate-output --radiolist "Choose An interface (press space to select):" "${r}" "${c}" "${interfaceCount}")
|
|
if chooseInterfaceOptions=$("${chooseInterfaceCmd[@]}" "${interfacesArray[@]}" 2>&1 >/dev/tty) ; then
|
|
for desiredInterface in ${chooseInterfaceOptions}; do
|
|
IPv4dev=${desiredInterface}
|
|
echo "::: Using interface: $IPv4dev"
|
|
echo "IPv4dev=${IPv4dev}" >> ${tempsetupVarsFile}
|
|
done
|
|
else
|
|
echo "::: Cancel selected, exiting...."
|
|
exit 1
|
|
fi
|
|
}
|
|
|
|
avoidStaticIPv4Ubuntu() {
|
|
if [ "${runUnattended}" = 'true' ]; then
|
|
echo "::: Since we think you are not using Raspbian, we will not configure a static IP for you."
|
|
return
|
|
fi
|
|
|
|
# If we are in Ubuntu then they need to have previously set their network, so just use what you have.
|
|
whiptail --msgbox --backtitle "IP Information" --title "IP Information" "Since we think you are not using Raspbian, we will not configure a static IP for you.
|
|
If you are in Amazon then you can not configure a static IP anyway. Just ensure before this installer started you had set an elastic IP on your instance." ${r} ${c}
|
|
}
|
|
|
|
validIP(){
|
|
local ip=$1
|
|
local stat=1
|
|
|
|
if [[ $ip =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]; then
|
|
OIFS=$IFS
|
|
IFS='.'
|
|
read -r -a ip <<< "$ip"
|
|
IFS=$OIFS
|
|
[[ ${ip[0]} -le 255 && ${ip[1]} -le 255 \
|
|
&& ${ip[2]} -le 255 && ${ip[3]} -le 255 ]]
|
|
stat=$?
|
|
fi
|
|
return $stat
|
|
}
|
|
|
|
validIPAndNetmask(){
|
|
local ip=$1
|
|
local stat=1
|
|
ip="${ip/\//.}"
|
|
|
|
if [[ $ip =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,2}$ ]]; then
|
|
OIFS=$IFS
|
|
IFS='.'
|
|
read -r -a ip <<< "$ip"
|
|
IFS=$OIFS
|
|
[[ ${ip[0]} -le 255 && ${ip[1]} -le 255 \
|
|
&& ${ip[2]} -le 255 && ${ip[3]} -le 255 \
|
|
&& ${ip[4]} -le 32 ]]
|
|
stat=$?
|
|
fi
|
|
return $stat
|
|
}
|
|
|
|
getStaticIPv4Settings() {
|
|
# Find the gateway IP used to route to outside world
|
|
CurrentIPv4gw="$(ip -o route get 192.0.2.1 | grep -oE '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | awk 'NR==2')"
|
|
|
|
# Find the IP address (and netmask) of the desidered interface
|
|
CurrentIPv4addr="$(ip -o -f inet address show dev "${IPv4dev}" | grep -oE '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\/[0-9]{1,2}')"
|
|
|
|
# Grab their current DNS servers
|
|
IPv4dns=$(grep -v "^#" /etc/resolv.conf | grep -w nameserver | grep -oE '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | xargs)
|
|
|
|
if [ "${runUnattended}" = 'true' ]; then
|
|
|
|
if [ -z "$dhcpReserv" ] || [ "$dhcpReserv" -ne 1 ]; then
|
|
local MISSING_STATIC_IPV4_SETTINGS=0
|
|
|
|
if [ -z "$IPv4addr" ]; then
|
|
echo "::: Missing static IP address"
|
|
((MISSING_STATIC_IPV4_SETTINGS++))
|
|
fi
|
|
|
|
if [ -z "$IPv4gw" ]; then
|
|
echo "::: Missing static IP gateway"
|
|
((MISSING_STATIC_IPV4_SETTINGS++))
|
|
fi
|
|
|
|
if [ "$MISSING_STATIC_IPV4_SETTINGS" -eq 0 ]; then
|
|
|
|
# If both settings are not empty, check if they are valid and proceed
|
|
if validIPAndNetmask "${IPv4addr}"; then
|
|
echo "::: Your static IPv4 address: ${IPv4addr}"
|
|
else
|
|
echo "::: ${IPv4addr} is not a valid IP address"
|
|
exit 1
|
|
fi
|
|
|
|
if validIP "${IPv4gw}"; then
|
|
echo "::: Your static IPv4 gateway: ${IPv4gw}"
|
|
else
|
|
echo "::: ${IPv4gw} is not a valid IP address"
|
|
exit 1
|
|
fi
|
|
|
|
elif [ "$MISSING_STATIC_IPV4_SETTINGS" -eq 1 ]; then
|
|
|
|
# If either of the settings is missing, consider the input inconsistent
|
|
echo "::: Incomplete static IP settings"
|
|
exit 1
|
|
|
|
elif [ "$MISSING_STATIC_IPV4_SETTINGS" -eq 2 ]; then
|
|
|
|
# If both of the settings are missing, assume the user wants to use current settings
|
|
IPv4addr="${CurrentIPv4addr}"
|
|
IPv4gw="${CurrentIPv4gw}"
|
|
echo "::: No static IP settings, using current settings"
|
|
echo "::: Your static IPv4 address: ${IPv4addr}"
|
|
echo "::: Your static IPv4 gateway: ${IPv4gw}"
|
|
|
|
fi
|
|
else
|
|
echo "::: Skipping setting static IP address"
|
|
fi
|
|
|
|
echo "dhcpReserv=${dhcpReserv}" >> ${tempsetupVarsFile}
|
|
echo "IPv4addr=${IPv4addr}" >> ${tempsetupVarsFile}
|
|
echo "IPv4gw=${IPv4gw}" >> ${tempsetupVarsFile}
|
|
return
|
|
fi
|
|
|
|
local ipSettingsCorrect
|
|
local IPv4AddrValid
|
|
local IPv4gwValid
|
|
# Some users reserve IP addresses on another DHCP Server or on their routers,
|
|
# Lets ask them if they want to make any changes to their interfaces.
|
|
|
|
if (whiptail --backtitle "Calibrating network interface" --title "DHCP Reservation" --yesno --defaultno \
|
|
"Are you Using DHCP Reservation on your Router/DHCP Server?
|
|
These are your current Network Settings:
|
|
|
|
IP address: ${CurrentIPv4addr}
|
|
Gateway: ${CurrentIPv4gw}
|
|
|
|
Yes: Keep using DHCP reservation
|
|
No: Setup static IP address
|
|
Don't know what DHCP Reservation is? Answer No." ${r} ${c}); then
|
|
dhcpReserv=1
|
|
# shellcheck disable=SC2129
|
|
echo "dhcpReserv=${dhcpReserv}" >> ${tempsetupVarsFile}
|
|
# We don't really need to save them as we won't set a static IP but they might be useful for debugging
|
|
echo "IPv4addr=${CurrentIPv4addr}" >> ${tempsetupVarsFile}
|
|
echo "IPv4gw=${CurrentIPv4gw}" >> ${tempsetupVarsFile}
|
|
else
|
|
# Ask if the user wants to use DHCP settings as their static IP
|
|
if (whiptail --backtitle "Calibrating network interface" --title "Static IP Address" --yesno "Do you want to use your current network settings as a static address?
|
|
|
|
IP address: ${CurrentIPv4addr}
|
|
Gateway: ${CurrentIPv4gw}" ${r} ${c}); then
|
|
IPv4addr=${CurrentIPv4addr}
|
|
IPv4gw=${CurrentIPv4gw}
|
|
echo "IPv4addr=${IPv4addr}" >> ${tempsetupVarsFile}
|
|
echo "IPv4gw=${IPv4gw}" >> ${tempsetupVarsFile}
|
|
|
|
# If they choose yes, let the user know that the IP address will not be available via DHCP and may cause a conflict.
|
|
whiptail --msgbox --backtitle "IP information" --title "FYI: IP Conflict" "It is possible your router could still try to assign this IP to a device, which would cause a conflict. But in most cases the router is smart enough to not do that.
|
|
If you are worried, either manually set the address, or modify the DHCP reservation pool so it does not include the IP you want.
|
|
It is also possible to use a DHCP reservation, but if you are going to do that, you might as well set a static address." ${r} ${c}
|
|
# Nothing else to do since the variables are already set above
|
|
else
|
|
# Otherwise, we need to ask the user to input their desired settings.
|
|
# Start by getting the IPv4 address (pre-filling it with info gathered from DHCP)
|
|
# Start a loop to let the user enter their information with the chance to go back and edit it if necessary
|
|
until [[ ${ipSettingsCorrect} = True ]]; do
|
|
|
|
until [[ ${IPv4AddrValid} = True ]]; do
|
|
# Ask for the IPv4 address
|
|
if IPv4addr=$(whiptail --backtitle "Calibrating network interface" --title "IPv4 address" --inputbox "Enter your desired IPv4 address" ${r} ${c} "${CurrentIPv4addr}" 3>&1 1>&2 2>&3) ; then
|
|
if validIPAndNetmask "${IPv4addr}"; then
|
|
echo "::: Your static IPv4 address: ${IPv4addr}"
|
|
IPv4AddrValid=True
|
|
else
|
|
whiptail --msgbox --backtitle "Calibrating network interface" --title "IPv4 address" "You've entered an invalid IP address: ${IPv4addr}\\n\\nPlease enter an IP address in the CIDR notation, example: 192.168.23.211/24\\n\\nIf you are not sure, please just keep the default." ${r} ${c}
|
|
echo "::: Invalid IPv4 address: ${IPv4addr}"
|
|
IPv4AddrValid=False
|
|
fi
|
|
else
|
|
# Cancelling IPv4 settings window
|
|
echo "::: Cancel selected. Exiting..."
|
|
exit 1
|
|
fi
|
|
done
|
|
|
|
until [[ ${IPv4gwValid} = True ]]; do
|
|
# Ask for the gateway
|
|
if IPv4gw=$(whiptail --backtitle "Calibrating network interface" --title "IPv4 gateway (router)" --inputbox "Enter your desired IPv4 default gateway" ${r} ${c} "${CurrentIPv4gw}" 3>&1 1>&2 2>&3) ; then
|
|
if validIP "${IPv4gw}"; then
|
|
echo "::: Your static IPv4 gateway: ${IPv4gw}"
|
|
IPv4gwValid=True
|
|
else
|
|
whiptail --msgbox --backtitle "Calibrating network interface" --title "IPv4 gateway (router)" "You've entered an invalid gateway IP: ${IPv4gw}\\n\\nPlease enter the IP address of your gateway (router), example: 192.168.23.1\\n\\nIf you are not sure, please just keep the default." ${r} ${c}
|
|
echo "::: Invalid IPv4 gateway: ${IPv4gw}"
|
|
IPv4gwValid=False
|
|
fi
|
|
else
|
|
# Cancelling gateway settings window
|
|
echo "::: Cancel selected. Exiting..."
|
|
exit 1
|
|
fi
|
|
done
|
|
|
|
# Give the user a chance to review their settings before moving on
|
|
if (whiptail --backtitle "Calibrating network interface" --title "Static IP Address" --yesno "Are these settings correct?
|
|
|
|
IP address: ${IPv4addr}
|
|
Gateway: ${IPv4gw}" ${r} ${c}); then
|
|
# If the settings are correct, then we need to set the pivpnIP
|
|
echo "IPv4addr=${IPv4addr}" >> ${tempsetupVarsFile}
|
|
echo "IPv4gw=${IPv4gw}" >> ${tempsetupVarsFile}
|
|
# After that's done, the loop ends and we move on
|
|
ipSettingsCorrect=True
|
|
else
|
|
# If the settings are wrong, the loop continues
|
|
ipSettingsCorrect=False
|
|
IPv4AddrValid=False
|
|
IPv4gwValid=False
|
|
fi
|
|
done
|
|
# End the if statement for DHCP vs. static
|
|
fi
|
|
# End of If Statement for DCHCP Reservation
|
|
fi
|
|
}
|
|
|
|
setDHCPCD(){
|
|
# Append these lines to dhcpcd.conf to enable a static IP
|
|
echo "interface ${IPv4dev}
|
|
static ip_address=${IPv4addr}
|
|
static routers=${IPv4gw}
|
|
static domain_name_servers=${IPv4dns}" | $SUDO tee -a ${dhcpcdFile} >/dev/null
|
|
}
|
|
|
|
setStaticIPv4(){
|
|
# Tries to set the IPv4 address
|
|
if [[ -f /etc/dhcpcd.conf ]]; then
|
|
if grep -q "${IPv4addr}" ${dhcpcdFile}; then
|
|
echo "::: Static IP already configured."
|
|
else
|
|
setDHCPCD
|
|
$SUDO ip addr replace dev "${IPv4dev}" "${IPv4addr}"
|
|
echo ":::"
|
|
echo "::: Setting IP to ${IPv4addr}. You may need to restart after the install is complete."
|
|
echo ":::"
|
|
fi
|
|
else
|
|
echo "::: Critical: Unable to locate configuration file to set static IPv4 address!"
|
|
exit 1
|
|
fi
|
|
}
|
|
|
|
chooseUser(){
|
|
if [ "${runUnattended}" = 'true' ]; then
|
|
if [ -z "$install_user" ]; then
|
|
if [ "$(awk -F':' 'BEGIN {count=0} $3>=1000 && $3<=60000 { count++ } END{ print count }' /etc/passwd)" -eq 1 ]; then
|
|
install_user="$(awk -F':' '$3>=1000 && $3<=60000 {print $1}' /etc/passwd)"
|
|
echo "::: No user specified, but only ${install_user} is available, using it"
|
|
else
|
|
echo "::: No user specified"
|
|
exit 1
|
|
fi
|
|
else
|
|
if awk -F':' '$3>=1000 && $3<=60000 {print $1}' /etc/passwd | grep -qw "${install_user}"; then
|
|
echo "::: ${install_user} will hold your ovpn configurations."
|
|
else
|
|
echo "::: User ${install_user} does not exist, creating..."
|
|
$SUDO useradd -m -s /bin/bash "${install_user}"
|
|
echo "::: User created without a password, please do sudo passwd $install_user to create one"
|
|
fi
|
|
fi
|
|
install_home=$(grep -m1 "^${install_user}:" /etc/passwd | cut -d: -f6)
|
|
install_home=${install_home%/}
|
|
echo "install_user=${install_user}" >> ${tempsetupVarsFile}
|
|
echo "install_home=${install_home}" >> ${tempsetupVarsFile}
|
|
return
|
|
fi
|
|
|
|
# Explain the local user
|
|
whiptail --msgbox --backtitle "Parsing User List" --title "Local Users" "Choose a local user that will hold your ovpn configurations." ${r} ${c}
|
|
# First, let's check if there is a user available.
|
|
numUsers=$(awk -F':' 'BEGIN {count=0} $3>=1000 && $3<=60000 { count++ } END{ print count }' /etc/passwd)
|
|
if [ "$numUsers" -eq 0 ]
|
|
then
|
|
# We don't have a user, let's ask to add one.
|
|
if userToAdd=$(whiptail --title "Choose A User" --inputbox "No non-root user account was found. Please type a new username." ${r} ${c} 3>&1 1>&2 2>&3)
|
|
then
|
|
# See https://askubuntu.com/a/667842/459815
|
|
PASSWORD=$(whiptail --title "password dialog" --passwordbox "Please enter the new user password" ${r} ${c} 3>&1 1>&2 2>&3)
|
|
CRYPT=$(perl -e 'printf("%s\n", crypt($ARGV[0], "password"))' "${PASSWORD}")
|
|
if $SUDO useradd -m -p "${CRYPT}" -s /bin/bash "${userToAdd}" ; then
|
|
echo "Succeeded"
|
|
((numUsers+=1))
|
|
else
|
|
exit 1
|
|
fi
|
|
else
|
|
exit 1
|
|
fi
|
|
fi
|
|
availableUsers=$(awk -F':' '$3>=1000 && $3<=60000 {print $1}' /etc/passwd)
|
|
local userArray=()
|
|
local firstloop=1
|
|
|
|
while read -r line
|
|
do
|
|
mode="OFF"
|
|
if [[ $firstloop -eq 1 ]]; then
|
|
firstloop=0
|
|
mode="ON"
|
|
fi
|
|
userArray+=("${line}" "" "${mode}")
|
|
done <<< "${availableUsers}"
|
|
chooseUserCmd=(whiptail --title "Choose A User" --separate-output --radiolist
|
|
"Choose (press space to select):" "${r}" "${c}" "${numUsers}")
|
|
if chooseUserOptions=$("${chooseUserCmd[@]}" "${userArray[@]}" 2>&1 >/dev/tty) ; then
|
|
for desiredUser in ${chooseUserOptions}; do
|
|
install_user=${desiredUser}
|
|
echo "::: Using User: $install_user"
|
|
install_home=$(grep -m1 "^${install_user}:" /etc/passwd | cut -d: -f6)
|
|
install_home=${install_home%/} # remove possible trailing slash
|
|
echo "install_user=${install_user}" >> ${tempsetupVarsFile}
|
|
echo "install_home=${install_home}" >> ${tempsetupVarsFile}
|
|
done
|
|
else
|
|
echo "::: Cancel selected, exiting...."
|
|
exit 1
|
|
fi
|
|
}
|
|
|
|
isRepo(){
|
|
# If the directory does not have a .git folder it is not a repo
|
|
echo -n "::: Checking $1 is a repo..."
|
|
cd "${1}" &> /dev/null || return 1
|
|
$SUDO git status &> /dev/null && echo " OK!"; return 0 || echo " not found!"; return 1
|
|
}
|
|
|
|
updateRepo(){
|
|
if [ "${UpdateCmd}" = "Repair" ]; then
|
|
echo "::: Repairing an existing installation, not downloading/updating local repos"
|
|
else
|
|
# Pull the latest commits
|
|
echo -n "::: Updating repo in $1..."
|
|
### FIXME: Never call rm -rf with a plain variable. Never again as SU!
|
|
#$SUDO rm -rf "${1}"
|
|
if test -n "$1"; then
|
|
$SUDO rm -rf "$(dirname "$1")/pivpn"
|
|
fi
|
|
# Go back to /usr/local/src otherwise git will complain when the current working
|
|
# directory has just been deleted (/usr/local/src/pivpn).
|
|
cd /usr/local/src && \
|
|
$SUDO git clone -q --depth 1 --no-single-branch "${2}" "${1}" > /dev/null & spinner $!
|
|
cd "${1}" || exit 1
|
|
if [ -z "${TESTING+x}" ]; then
|
|
:
|
|
else
|
|
${SUDOE} git checkout test
|
|
fi
|
|
echo " done!"
|
|
fi
|
|
}
|
|
|
|
makeRepo(){
|
|
# Remove the non-repos interface and clone the interface
|
|
echo -n "::: Cloning $2 into $1..."
|
|
### FIXME: Never call rm -rf with a plain variable. Never again as SU!
|
|
#$SUDO rm -rf "${1}"
|
|
if test -n "$1"; then
|
|
$SUDO rm -rf "$(dirname "$1")/pivpn"
|
|
fi
|
|
# Go back to /usr/local/src otherwhise git will complain when the current working
|
|
# directory has just been deleted (/usr/local/src/pivpn).
|
|
cd /usr/local/src && \
|
|
$SUDO git clone -q --depth 1 --no-single-branch "${2}" "${1}" > /dev/null & spinner $!
|
|
cd "${1}" || exit 1
|
|
if [ -z "${TESTING+x}" ]; then
|
|
:
|
|
else
|
|
${SUDOE} git checkout test
|
|
fi
|
|
echo " done!"
|
|
}
|
|
|
|
getGitFiles(){
|
|
# Setup git repos for base files
|
|
echo ":::"
|
|
echo "::: Checking for existing base files..."
|
|
if isRepo "${1}"; then
|
|
updateRepo "${1}" "${2}"
|
|
else
|
|
makeRepo "${1}" "${2}"
|
|
fi
|
|
}
|
|
|
|
cloneOrUpdateRepos(){
|
|
# /usr/local should always exist, not sure about the src subfolder though
|
|
$SUDO mkdir -p /usr/local/src
|
|
|
|
# Get Git files
|
|
getGitFiles ${pivpnFilesDir} ${pivpnGitUrl} || \
|
|
{ echo "!!! Unable to clone ${pivpnGitUrl} into ${pivpnFilesDir}, unable to continue."; \
|
|
exit 1; \
|
|
}
|
|
}
|
|
|
|
installPiVPN(){
|
|
$SUDO mkdir -p /etc/pivpn/
|
|
askWhichVPN
|
|
|
|
if [ "$VPN" = "openvpn" ]; then
|
|
|
|
pivpnDEV="tun0"
|
|
pivpnNET="10.8.0.0"
|
|
vpnGw="${pivpnNET/.0.0/.0.1}"
|
|
|
|
askAboutCustomizing
|
|
installOpenVPN
|
|
askCustomProto
|
|
askCustomPort
|
|
askClientDNS
|
|
askCustomDomain
|
|
askPublicIPOrDNS
|
|
askEncryption
|
|
confOpenVPN
|
|
confOVPN
|
|
confNetwork
|
|
confLogging
|
|
|
|
elif [ "$VPN" = "wireguard" ]; then
|
|
|
|
# Since WireGuard only uses UDP, askCustomProto() is never called so we
|
|
# set the protocol here.
|
|
pivpnPROTO="udp"
|
|
pivpnDEV="wg0"
|
|
pivpnNET="10.6.0.0"
|
|
vpnGw="${pivpnNET/.0.0/.0.1}"
|
|
CUSTOMIZE=0
|
|
|
|
installWireGuard
|
|
askCustomPort
|
|
askClientDNS
|
|
askPublicIPOrDNS
|
|
confWireGuard
|
|
confNetwork
|
|
|
|
echo "pivpnPROTO=${pivpnPROTO}" >> ${tempsetupVarsFile}
|
|
|
|
fi
|
|
|
|
echo "pivpnDEV=${pivpnDEV}" >> ${tempsetupVarsFile}
|
|
echo "pivpnNET=${pivpnNET}" >> ${tempsetupVarsFile}
|
|
echo "subnetClass=${subnetClass}" >> ${tempsetupVarsFile}
|
|
}
|
|
|
|
askWhichVPN(){
|
|
if [ "${runUnattended}" = 'true' ]; then
|
|
if [ "$PLAT" = "Raspbian" ] || [ "$X86_SYSTEM" -eq 1 ]; then
|
|
if [ -z "$VPN" ]; then
|
|
echo ":: No VPN protocol specified, using WireGuard"
|
|
VPN="wireguard"
|
|
else
|
|
VPN="${VPN,,}"
|
|
if [ "$VPN" = "wireguard" ]; then
|
|
echo "::: WireGuard will be installed"
|
|
elif [ "$VPN" = "openvpn" ]; then
|
|
echo "::: OpenVPN will be installed"
|
|
else
|
|
echo ":: $VPN is not a supported VPN protocol, please specify 'wireguard' or 'openvpn'"
|
|
exit 1
|
|
fi
|
|
fi
|
|
elif [ "$X86_SYSTEM" -eq 0 ]; then
|
|
if [ -z "$VPN" ]; then
|
|
echo ":: No VPN protocol specified, using OpenVPN"
|
|
VPN="openvpn"
|
|
else
|
|
VPN="${VPN,,}"
|
|
if [ "$VPN" = "openvpn" ]; then
|
|
echo "::: OpenVPN will be installed"
|
|
else
|
|
echo ":: $VPN is not a supported VPN protocol on $DPKG_ARCH $PLAT, only 'openvpn' is"
|
|
exit 1
|
|
fi
|
|
fi
|
|
fi
|
|
else
|
|
if [ "$PLAT" = "Raspbian" ] || [ "$X86_SYSTEM" -eq 1 ]; then
|
|
chooseVPNCmd=(whiptail --backtitle "Setup PiVPN" --title "Installation mode" --separate-output --radiolist "WireGuard is a new kind of VPN that provides near-instantaneous connection speed, high performance, and modern cryptography.\\n\\nIt's the recommended choice especially if you use mobile devices where WireGuard is easier on battery than OpenVPN.\\n\\nOpenVPN is still available if you need the traditional, flexible, trusted VPN protocol or if you need features like TCP and custom search domain.\\n\\nChoose a VPN (press space to select):" "${r}" "${c}" 2)
|
|
VPNChooseOptions=(WireGuard "" on
|
|
OpenVPN "" off)
|
|
|
|
if VPN=$("${chooseVPNCmd[@]}" "${VPNChooseOptions[@]}" 2>&1 >/dev/tty) ; then
|
|
echo "::: Using VPN: $VPN"
|
|
VPN="${VPN,,}"
|
|
else
|
|
echo "::: Cancel selected, exiting...."
|
|
exit 1
|
|
fi
|
|
elif [ "$X86_SYSTEM" -eq 0 ]; then
|
|
echo "::: Using VPN: OpenVPN"
|
|
VPN="openvpn"
|
|
fi
|
|
fi
|
|
|
|
echo "VPN=${VPN}" >> ${tempsetupVarsFile}
|
|
}
|
|
|
|
askAboutCustomizing(){
|
|
if [ "${runUnattended}" = 'false' ]; then
|
|
if (whiptail --backtitle "Setup PiVPN" --title "Installation mode" --yesno --defaultno "PiVPN uses the following settings that we believe are good defaults for most users. However, we still want to keep flexibility, so if you need to customize them, choose Yes.\n\n* UDP or TCP protocol: UDP\n* Custom search domain for the DNS field: None\n* Modern features or best compatibility: Modern features (256 bit certificate + additional TLS encryption)" ${r} ${c}); then
|
|
CUSTOMIZE=1
|
|
else
|
|
CUSTOMIZE=0
|
|
fi
|
|
fi
|
|
}
|
|
|
|
downloadVerifyKey(){
|
|
local KEY_URL="$1"
|
|
local EXPECTED_KEY_ID="$2"
|
|
|
|
local KEY_CONTENT
|
|
local KEY_INFO
|
|
local DOWNLOADED_KEY_ID
|
|
|
|
if ! KEY_CONTENT="$(wget -qO- "$KEY_URL")"; then
|
|
return 1
|
|
fi
|
|
|
|
if ! KEY_INFO="$(gpg --show-key --with-colons <<< "$KEY_CONTENT")"; then
|
|
return 1
|
|
fi
|
|
|
|
DOWNLOADED_KEY_ID="$(sed -n '/^pub:/,/^fpr:/p' <<< "$KEY_INFO" | grep '^fpr' | cut -d ':' -f 10)"
|
|
|
|
if [ "$DOWNLOADED_KEY_ID" != "$EXPECTED_KEY_ID" ]; then
|
|
return 1
|
|
fi
|
|
|
|
echo "$KEY_CONTENT"
|
|
return 0
|
|
}
|
|
|
|
installOpenVPN(){
|
|
local PIVPN_DEPS
|
|
|
|
echo "::: Installing OpenVPN from Debian package... "
|
|
|
|
# Use x86-only OpenVPN APT repo on x86 Debian/Ubuntu systems
|
|
if [ "$PLAT" != "Raspbian" ] && [ "$X86_SYSTEM" -eq 1 ]; then
|
|
|
|
AVAILABLE_OPENVPN="$(apt-cache policy openvpn | grep -m1 'Candidate: ' | grep -v '(none)' | awk '{print $2}')"
|
|
|
|
# If there is an available openvpn package and its version is at least 2.4
|
|
# (required for ECC support), do not add the repository
|
|
if [ -n "$AVAILABLE_OPENVPN" ] && dpkg --compare-versions "$AVAILABLE_OPENVPN" ge 2.4; then
|
|
echo "::: OpenVPN is already available in the repositories"
|
|
else
|
|
# gnupg is used by apt-key to import the openvpn GPG key into the
|
|
# APT keyring
|
|
PIVPN_DEPS=(gnupg)
|
|
installDependentPackages PIVPN_DEPS[@]
|
|
|
|
# We will download the repository key for the official repository from a
|
|
# keyserver. If we fail, we will attempt to download the key via HTTPS
|
|
echo "::: Adding repository key..."
|
|
if ! $SUDO apt-key adv --keyserver keyserver.ubuntu.com --recv-keys "$OPENVPN_KEY_ID"; then
|
|
echo "::: Import via keyserver failed, now trying wget"
|
|
if ! downloadVerifyKey "$OPENVPN_KEY_URL" "$OPENVPN_KEY_ID" | $SUDO apt-key add -; then
|
|
echo "::: Can't import OpenVPN GPG key"
|
|
exit 1
|
|
else
|
|
echo "::: Acquired key $OPENVPN_KEY_ID"
|
|
fi
|
|
fi
|
|
|
|
echo "::: Adding OpenVPN repository... "
|
|
echo "deb https://build.openvpn.net/debian/openvpn/stable $OSCN main" | $SUDO tee /etc/apt/sources.list.d/pivpn-openvpn-repo.list > /dev/null
|
|
|
|
echo "::: Updating package cache..."
|
|
# shellcheck disable=SC2086
|
|
$SUDO ${UPDATE_PKG_CACHE} &> /dev/null & spinner $!
|
|
fi
|
|
fi
|
|
|
|
# grepcidr is used to redact IPs in the debug log whereas expect is used
|
|
# to feed easy-rsa with passwords
|
|
PIVPN_DEPS=(openvpn grepcidr expect)
|
|
installDependentPackages PIVPN_DEPS[@]
|
|
}
|
|
|
|
installWireGuard(){
|
|
local PIVPN_DEPS
|
|
|
|
if [ "$PLAT" = "Raspbian" ]; then
|
|
|
|
# If the running kernel is older than the kernel from the repo, dkms will
|
|
# install the module for the newer kernel therefore WireGuard will not start.
|
|
# Telling the user to update the whole system is probably the easiest way to
|
|
# handle this situation.
|
|
|
|
# This issue is very common for users that flash Raspbian and install PiVPN
|
|
# straight, so it's also a good suggestion in such case because they will have
|
|
# a lot of outdated packages.
|
|
|
|
INSTALLED_KERNEL="$(apt-cache policy raspberrypi-kernel | grep -m1 'Installed: ' | grep -v '(none)' | awk '{print $2}')"
|
|
CANDIDATE_KERNEL="$(apt-cache policy raspberrypi-kernel | grep -m1 'Candidate: ' | grep -v '(none)' | awk '{print $2}')"
|
|
|
|
if dpkg --compare-versions "${CANDIDATE_KERNEL}" gt "${INSTALLED_KERNEL}"; then
|
|
if [ "${runUnattended}" = 'true' ]; then
|
|
echo "::: Installing WireGuard requires the latest kernel. Please upgrade all packages, reboot and run the script again."
|
|
echo "::: Commands:"
|
|
echo "::: sudo apt-get upgrade -y"
|
|
echo "::: sudo shutdown -r now"
|
|
echo "::: curl -L https://install.pivpn.io | bash"
|
|
exit 1
|
|
else
|
|
if (whiptail --title "Install WireGuard" --yesno "Your Raspberry Pi is running kernel package ${INSTALLED_KERNEL}, however the latest version is ${CANDIDATE_KERNEL}.\n\nInstalling WireGuard requires the latest kernel, so to continue, first you need to upgrade all packages, then reboot, and then run the script again.\n\nProceed to the upgrade?" ${r} ${c}); then
|
|
if command -v debconf-apt-progress &> /dev/null; then
|
|
# shellcheck disable=SC2086
|
|
$SUDO debconf-apt-progress -- ${PKG_MANAGER} upgrade -y
|
|
else
|
|
$SUDO ${PKG_MANAGER} upgrade -y
|
|
fi
|
|
if (whiptail --title "Reboot" --yesno "You need to reboot after upgrading to run the new kernel.\n\nWould you like to reboot now?" ${r} ${c}); then
|
|
whiptail --title "Rebooting" --msgbox "The system will now reboot.\n\nWhen you come back, just run the installation command again:\n\n curl -L https://install.pivpn.io | bash" ${r} ${c}
|
|
printf "\\nRebooting system...\\n"
|
|
$SUDO sleep 3
|
|
$SUDO shutdown -r now
|
|
else
|
|
exit 1
|
|
fi
|
|
else
|
|
echo "::: Can't continue without upgrading the system first, exiting..."
|
|
exit 1
|
|
fi
|
|
fi
|
|
fi
|
|
|
|
echo "::: Installing WireGuard from Debian package... "
|
|
|
|
if apt-cache policy wireguard 2> /dev/null | grep -m1 'Candidate: ' | grep -vq '(none)'; then
|
|
echo "::: WireGuard is already available in the repositories"
|
|
else
|
|
echo "::: Adding Raspbian repository... "
|
|
echo "deb http://raspbian.raspberrypi.org/raspbian/ bullseye main" | $SUDO tee /etc/apt/sources.list.d/pivpn-bullseye.list > /dev/null
|
|
|
|
# Do not upgrade packages from the bullseye repository except for wireguard
|
|
printf 'Package: *\nPin: release n=bullseye\nPin-Priority: -1\n\nPackage: wireguard wireguard-dkms wireguard-tools\nPin: release n=bullseye\nPin-Priority: 100\n' | $SUDO tee /etc/apt/preferences.d/pivpn-limit-bullseye > /dev/null
|
|
|
|
echo "::: Updating package cache..."
|
|
# shellcheck disable=SC2086
|
|
$SUDO ${UPDATE_PKG_CACHE} &> /dev/null & spinner $!
|
|
fi
|
|
|
|
# qrencode is used to generate qrcodes from config file, for use with mobile clients
|
|
PIVPN_DEPS=(raspberrypi-kernel-headers wireguard wireguard-tools wireguard-dkms qrencode)
|
|
installDependentPackages PIVPN_DEPS[@]
|
|
|
|
elif [ "$PLAT" = "Debian" ]; then
|
|
|
|
echo "::: Installing WireGuard from Debian package... "
|
|
|
|
if apt-cache policy wireguard 2> /dev/null | grep -m1 'Candidate: ' | grep -vq '(none)'; then
|
|
echo "::: WireGuard is already available in the repositories"
|
|
else
|
|
echo "::: Adding Debian repository... "
|
|
echo "deb https://deb.debian.org/debian/ bullseye main" | $SUDO tee /etc/apt/sources.list.d/pivpn-bullseye.list > /dev/null
|
|
|
|
printf 'Package: *\nPin: release n=bullseye\nPin-Priority: -1\n\nPackage: wireguard wireguard-dkms wireguard-tools\nPin: release n=bullseye\nPin-Priority: 100\n' | $SUDO tee /etc/apt/preferences.d/pivpn-limit-bullseye > /dev/null
|
|
|
|
echo "::: Updating package cache..."
|
|
# shellcheck disable=SC2086
|
|
$SUDO ${UPDATE_PKG_CACHE} &> /dev/null & spinner $!
|
|
fi
|
|
|
|
PIVPN_DEPS=(linux-headers-amd64 wireguard wireguard-tools wireguard-dkms qrencode)
|
|
installDependentPackages PIVPN_DEPS[@]
|
|
|
|
elif [ "$PLAT" = "Ubuntu" ]; then
|
|
|
|
echo "::: Installing WireGuard... "
|
|
|
|
if apt-cache policy wireguard 2> /dev/null | grep -m1 'Candidate: ' | grep -vq '(none)'; then
|
|
echo "::: WireGuard is already available in the repositories"
|
|
else
|
|
echo "::: Adding WireGuard PPA... "
|
|
PIVPN_DEPS=(software-properties-common)
|
|
installDependentPackages PIVPN_DEPS[@]
|
|
$SUDO add-apt-repository ppa:wireguard/wireguard -y
|
|
|
|
echo "::: Updating package cache..."
|
|
# shellcheck disable=SC2086
|
|
$SUDO ${UPDATE_PKG_CACHE} &> /dev/null & spinner $!
|
|
fi
|
|
|
|
PIVPN_DEPS=(linux-headers-generic wireguard wireguard-tools wireguard-dkms qrencode)
|
|
installDependentPackages PIVPN_DEPS[@]
|
|
|
|
fi
|
|
}
|
|
|
|
askCustomProto(){
|
|
if [ "${runUnattended}" = 'true' ]; then
|
|
if [ -z "$pivpnPROTO" ]; then
|
|
echo "::: No TCP/IP protocol specified, using the default protocol udp"
|
|
pivpnPROTO="udp"
|
|
else
|
|
pivpnPROTO="${pivpnPROTO,,}"
|
|
if [ "$pivpnPROTO" = "udp" ] || [ "$pivpnPROTO" = "tcp" ]; then
|
|
echo "::: Using the $pivpnPROTO protocol"
|
|
else
|
|
echo ":: $pivpnPROTO is not a supported TCP/IP protocol, please specify 'udp' or 'tcp'"
|
|
exit 1
|
|
fi
|
|
fi
|
|
echo "pivpnPROTO=${pivpnPROTO}" >> ${tempsetupVarsFile}
|
|
return
|
|
fi
|
|
|
|
if [ "$CUSTOMIZE" -eq 0 ]; then
|
|
if [ "$VPN" = "openvpn" ]; then
|
|
pivpnPROTO="udp"
|
|
echo "pivpnPROTO=${pivpnPROTO}" >> ${tempsetupVarsFile}
|
|
return
|
|
fi
|
|
fi
|
|
|
|
# Set the available protocols into an array so it can be used with a whiptail dialog
|
|
if pivpnPROTO=$(whiptail --title "Protocol" --radiolist \
|
|
"Choose a protocol (press space to select). Please only choose TCP if you know why you need TCP." ${r} ${c} 2 \
|
|
"UDP" "" ON \
|
|
"TCP" "" OFF 3>&1 1>&2 2>&3)
|
|
then
|
|
# Convert option into lowercase (UDP->udp)
|
|
pivpnPROTO="${pivpnPROTO,,}"
|
|
echo "::: Using protocol: $pivpnPROTO"
|
|
echo "pivpnPROTO=${pivpnPROTO}" >> ${tempsetupVarsFile}
|
|
else
|
|
echo "::: Cancel selected, exiting...."
|
|
exit 1
|
|
fi
|
|
}
|
|
|
|
askCustomPort(){
|
|
if [ "${runUnattended}" = 'true' ]; then
|
|
if [ -z "$pivpnPORT" ]; then
|
|
if [ "$VPN" = "wireguard" ]; then
|
|
echo "::: No port specified, using the default port 51820"
|
|
pivpnPORT=51820
|
|
elif [ "$VPN" = "openvpn" ]; then
|
|
if [ "$pivpnPROTO" = "udp" ]; then
|
|
echo "::: No port specified, using the default port 1194"
|
|
pivpnPORT=1194
|
|
elif [ "$pivpnPROTO" = "tcp" ]; then
|
|
echo "::: No port specified, using the default port 443"
|
|
pivpnPORT=443
|
|
fi
|
|
fi
|
|
else
|
|
if [[ "$pivpnPORT" =~ ^[0-9]+$ ]] && [ "$pivpnPORT" -ge 1 ] && [ "$pivpnPORT" -le 65535 ]; then
|
|
echo "::: Using port $pivpnPORT"
|
|
else
|
|
echo "::: $pivpnPORT is not a valid port, use a port within the range [1,65535] (inclusive)"
|
|
exit 1
|
|
fi
|
|
fi
|
|
echo "pivpnPORT=${pivpnPORT}" >> ${tempsetupVarsFile}
|
|
return
|
|
fi
|
|
|
|
until [[ $PORTNumCorrect = True ]]
|
|
do
|
|
portInvalid="Invalid"
|
|
|
|
if [ "$VPN" = "wireguard" ]; then
|
|
DEFAULT_PORT=51820
|
|
elif [ "$VPN" = "openvpn" ]; then
|
|
if [ "$pivpnPROTO" = "udp" ]; then
|
|
DEFAULT_PORT=1194
|
|
else
|
|
DEFAULT_PORT=443
|
|
fi
|
|
fi
|
|
|
|
if pivpnPORT=$(whiptail --title "Default $VPN Port" --inputbox "You can modify the default $VPN port. \\nEnter a new value or hit 'Enter' to retain the default" ${r} ${c} $DEFAULT_PORT 3>&1 1>&2 2>&3)
|
|
then
|
|
if [[ "$pivpnPORT" =~ ^[0-9]+$ ]] && [ "$pivpnPORT" -ge 1 ] && [ "$pivpnPORT" -le 65535 ]; then
|
|
:
|
|
else
|
|
pivpnPORT=$portInvalid
|
|
fi
|
|
else
|
|
echo "::: Cancel selected, exiting...."
|
|
exit 1
|
|
fi
|
|
|
|
if [[ $pivpnPORT == "$portInvalid" ]]; then
|
|
whiptail --msgbox --backtitle "Invalid Port" --title "Invalid Port" "You entered an invalid Port number.\\n Please enter a number from 1 - 65535.\\n If you are not sure, please just keep the default." ${r} ${c}
|
|
PORTNumCorrect=False
|
|
else
|
|
if (whiptail --backtitle "Specify Custom Port" --title "Confirm Custom Port Number" --yesno "Are these settings correct?\\n PORT: $pivpnPORT" ${r} ${c}) then
|
|
PORTNumCorrect=True
|
|
else
|
|
# If the settings are wrong, the loop continues
|
|
PORTNumCorrect=False
|
|
fi
|
|
fi
|
|
done
|
|
# write out the port
|
|
echo "pivpnPORT=${pivpnPORT}" >> ${tempsetupVarsFile}
|
|
}
|
|
|
|
askClientDNS(){
|
|
if [ "${runUnattended}" = 'true' ]; then
|
|
|
|
if [ -z "$pivpnDNS1" ] && [ -n "$pivpnDNS2" ]; then
|
|
pivpnDNS1="$pivpnDNS2"
|
|
unset pivpnDNS2
|
|
elif [ -z "$pivpnDNS1" ] && [ -z "$pivpnDNS2" ]; then
|
|
pivpnDNS1="9.9.9.9"
|
|
pivpnDNS2="149.112.112.112"
|
|
echo "::: No DNS provider specified, using Quad9 DNS ($pivpnDNS1 $pivpnDNS2)"
|
|
fi
|
|
|
|
local INVALID_DNS_SETTINGS=0
|
|
|
|
if ! validIP "$pivpnDNS1"; then
|
|
INVALID_DNS_SETTINGS=1
|
|
echo "::: Invalid DNS $pivpnDNS1"
|
|
fi
|
|
|
|
if [ -n "$pivpnDNS2" ] && ! validIP "$pivpnDNS2"; then
|
|
INVALID_DNS_SETTINGS=1
|
|
echo "::: Invalid DNS $pivpnDNS2"
|
|
fi
|
|
|
|
if [ "$INVALID_DNS_SETTINGS" -eq 0 ]; then
|
|
echo "::: Using DNS $pivpnDNS1 $pivpnDNS2"
|
|
else
|
|
exit 1
|
|
fi
|
|
|
|
echo "pivpnDNS1=${pivpnDNS1}" >> ${tempsetupVarsFile}
|
|
echo "pivpnDNS2=${pivpnDNS2}" >> ${tempsetupVarsFile}
|
|
return
|
|
fi
|
|
|
|
# Detect and offer to use Pi-hole
|
|
if command -v pihole > /dev/null; then
|
|
if (whiptail --backtitle "Setup PiVPN" --title "Pi-hole" --yesno "We have detected a Pi-hole installation, do you want to use it as the DNS server for the VPN, so you get ad blocking on the go?" ${r} ${c}); then
|
|
if [ ! -r "$piholeSetupVars" ]; then
|
|
echo "::: Unable to read $piholeSetupVars"
|
|
exit 1
|
|
fi
|
|
|
|
# Add a custom hosts file for VPN clients so they appear as 'name.pivpn' in the
|
|
# Pi-hole dashboard as well as resolve by their names.
|
|
echo "addn-hosts=/etc/pivpn/hosts.$VPN" | $SUDO tee "$dnsmasqConfig" > /dev/null
|
|
|
|
# Then create an empty hosts file or clear if it exists.
|
|
$SUDO bash -c "> /etc/pivpn/hosts.$VPN"
|
|
|
|
# Setting Pi-hole to "Listen on all interfaces" allows dnsmasq to listen on the
|
|
# VPN interface while permitting queries only from hosts whose address is on
|
|
# the LAN and VPN subnets.
|
|
$SUDO pihole -a -i local
|
|
|
|
# Use the Raspberry Pi VPN IP as DNS server.
|
|
pivpnDNS1="$vpnGw"
|
|
|
|
echo "pivpnDNS1=${pivpnDNS1}" >> ${tempsetupVarsFile}
|
|
echo "pivpnDNS2=${pivpnDNS2}" >> ${tempsetupVarsFile}
|
|
return
|
|
fi
|
|
fi
|
|
|
|
DNSChoseCmd=(whiptail --backtitle "Setup PiVPN" --title "DNS Provider" --separate-output --radiolist "Select the DNS Provider for your VPN Clients (press space to select).\nTo use your own, select Custom.\n\nIn case you have a local resolver running, i.e. unbound, select \"PiVPN-is-local-DNS\" and make sure your resolver is listening on \"$vpnGw\", allowing requests from \"${pivpnNET}/${subnetClass}\"." "${r}" "${c}" 6)
|
|
DNSChooseOptions=(Quad9 "" on
|
|
OpenDNS "" off
|
|
Level3 "" off
|
|
DNS.WATCH "" off
|
|
Norton "" off
|
|
FamilyShield "" off
|
|
CloudFlare "" off
|
|
Google "" off
|
|
PiVPN-is-local-DNS "" off
|
|
Custom "" off)
|
|
|
|
if DNSchoices=$("${DNSChoseCmd[@]}" "${DNSChooseOptions[@]}" 2>&1 >/dev/tty)
|
|
then
|
|
|
|
if [[ ${DNSchoices} != "Custom" ]]; then
|
|
|
|
echo "::: Using ${DNSchoices} servers."
|
|
declare -A DNS_MAP=(["Quad9"]="9.9.9.9 149.112.112.112"
|
|
["OpenDNS"]="208.67.222.222 208.67.220.220"
|
|
["Level3"]="209.244.0.3 209.244.0.4"
|
|
["DNS.WATCH"]="84.200.69.80 84.200.70.40"
|
|
["Norton"]="199.85.126.10 199.85.127.10"
|
|
["FamilyShield"]="208.67.222.123 208.67.220.123"
|
|
["CloudFlare"]="1.1.1.1 1.0.0.1"
|
|
["Google"]="8.8.8.8 8.8.4.4"
|
|
["PiVPN-is-local-DNS"]="$vpnGw")
|
|
|
|
pivpnDNS1=$(awk '{print $1}' <<< "${DNS_MAP["${DNSchoices}"]}")
|
|
pivpnDNS2=$(awk '{print $2}' <<< "${DNS_MAP["${DNSchoices}"]}")
|
|
|
|
else
|
|
|
|
until [[ $DNSSettingsCorrect = True ]]; do
|
|
strInvalid="Invalid"
|
|
|
|
if pivpnDNS=$(whiptail --backtitle "Specify Upstream DNS Provider(s)" --inputbox "Enter your desired upstream DNS provider(s), separated by a comma.\\n\\nFor example '1.1.1.1, 9.9.9.9'" ${r} ${c} "" 3>&1 1>&2 2>&3)
|
|
then
|
|
pivpnDNS1=$(echo "$pivpnDNS" | sed 's/[, \t]\+/,/g' | awk -F, '{print$1}')
|
|
pivpnDNS2=$(echo "$pivpnDNS" | sed 's/[, \t]\+/,/g' | awk -F, '{print$2}')
|
|
if ! validIP "$pivpnDNS1" || [ ! "$pivpnDNS1" ]; then
|
|
pivpnDNS1=$strInvalid
|
|
fi
|
|
if ! validIP "$pivpnDNS2" && [ "$pivpnDNS2" ]; then
|
|
pivpnDNS2=$strInvalid
|
|
fi
|
|
else
|
|
echo "::: Cancel selected, exiting...."
|
|
exit 1
|
|
fi
|
|
|
|
if [[ $pivpnDNS1 == "$strInvalid" ]] || [[ $pivpnDNS2 == "$strInvalid" ]]; then
|
|
whiptail --msgbox --backtitle "Invalid IP" --title "Invalid IP" "One or both entered IP addresses were invalid. Please try again.\\n\\n DNS Server 1: $pivpnDNS1\\n DNS Server 2: $pivpnDNS2" ${r} ${c}
|
|
if [[ $pivpnDNS1 == "$strInvalid" ]]; then
|
|
pivpnDNS1=""
|
|
fi
|
|
if [[ $pivpnDNS2 == "$strInvalid" ]]; then
|
|
pivpnDNS2=""
|
|
fi
|
|
DNSSettingsCorrect=False
|
|
else
|
|
if (whiptail --backtitle "Specify Upstream DNS Provider(s)" --title "Upstream DNS Provider(s)" --yesno "Are these settings correct?\\n DNS Server 1: $pivpnDNS1\\n DNS Server 2: $pivpnDNS2" ${r} ${c}) then
|
|
DNSSettingsCorrect=True
|
|
else
|
|
# If the settings are wrong, the loop continues
|
|
DNSSettingsCorrect=False
|
|
fi
|
|
fi
|
|
done
|
|
fi
|
|
|
|
else
|
|
echo "::: Cancel selected. Exiting..."
|
|
exit 1
|
|
fi
|
|
|
|
echo "pivpnDNS1=${pivpnDNS1}" >> ${tempsetupVarsFile}
|
|
echo "pivpnDNS2=${pivpnDNS2}" >> ${tempsetupVarsFile}
|
|
}
|
|
|
|
#Call this function to use a regex to check user input for a valid custom domain
|
|
validDomain(){
|
|
local domain="$1"
|
|
grep -qP '(?=^.{4,253}$)(^(?:[a-zA-Z0-9](?:(?:[a-zA-Z0-9\-]){0,61}[a-zA-Z0-9])?\.)+[a-zA-Z]{2,}$)' <<< "$domain"
|
|
}
|
|
|
|
#This procedure allows a user to specify a custom search domain if they have one.
|
|
askCustomDomain(){
|
|
if [ "${runUnattended}" = 'true' ]; then
|
|
if [ -n "$pivpnSEARCHDOMAIN" ]; then
|
|
if validDomain "$pivpnSEARCHDOMAIN"; then
|
|
echo "::: Using custom domain $pivpnSEARCHDOMAIN"
|
|
else
|
|
echo "::: Custom domain $pivpnSEARCHDOMAIN is not valid"
|
|
exit 1
|
|
fi
|
|
else
|
|
echo "::: Skipping custom domain"
|
|
fi
|
|
echo "pivpnSEARCHDOMAIN=${pivpnSEARCHDOMAIN}" >> ${tempsetupVarsFile}
|
|
return
|
|
fi
|
|
|
|
if [ "$CUSTOMIZE" -eq 0 ]; then
|
|
if [ "$VPN" = "openvpn" ]; then
|
|
echo "pivpnSEARCHDOMAIN=${pivpnSEARCHDOMAIN}" >> ${tempsetupVarsFile}
|
|
return
|
|
fi
|
|
fi
|
|
|
|
DomainSettingsCorrect=False
|
|
|
|
if (whiptail --backtitle "Custom Search Domain" --title "Custom Search Domain" --yesno --defaultno "Would you like to add a custom search domain? \\n (This is only for advanced users who have their own domain)\\n" ${r} ${c}); then
|
|
|
|
until [[ $DomainSettingsCorrect = True ]]
|
|
do
|
|
if pivpnSEARCHDOMAIN=$(whiptail --inputbox "Enter Custom Domain\\nFormat: mydomain.com" ${r} ${c} --title "Custom Domain" 3>&1 1>&2 2>&3); then
|
|
if validDomain "$pivpnSEARCHDOMAIN"; then
|
|
if (whiptail --backtitle "Custom Search Domain" --title "Custom Search Domain" --yesno "Are these settings correct?\\n Custom Search Domain: $pivpnSEARCHDOMAIN" ${r} ${c}); then
|
|
DomainSettingsCorrect=True
|
|
else
|
|
# If the settings are wrong, the loop continues
|
|
DomainSettingsCorrect=False
|
|
fi
|
|
else
|
|
whiptail --msgbox --backtitle "Invalid Domain" --title "Invalid Domain" "Domain is invalid. Please try again.\\n\\n DOMAIN: $pivpnSEARCHDOMAIN\\n" ${r} ${c}
|
|
DomainSettingsCorrect=False
|
|
fi
|
|
else
|
|
echo "::: Cancel selected. Exiting..."
|
|
exit 1
|
|
fi
|
|
done
|
|
fi
|
|
|
|
echo "pivpnSEARCHDOMAIN=${pivpnSEARCHDOMAIN}" >> ${tempsetupVarsFile}
|
|
}
|
|
|
|
askPublicIPOrDNS(){
|
|
if ! IPv4pub=$(dig +short myip.opendns.com @208.67.222.222) || ! validIP "$IPv4pub"; then
|
|
echo "dig failed, now trying to curl checkip.amazonaws.com"
|
|
if ! IPv4pub=$(curl -s https://checkip.amazonaws.com) || ! validIP "$IPv4pub"; then
|
|
echo "checkip.amazonaws.com failed, please check your internet connection/DNS"
|
|
exit 1
|
|
fi
|
|
fi
|
|
|
|
if [ "${runUnattended}" = 'true' ]; then
|
|
if [ -z "$pivpnHOST" ]; then
|
|
echo "::: No IP or domain name specified, using public IP $IPv4pub"
|
|
pivpnHOST="$IPv4pub"
|
|
else
|
|
if validIP "$pivpnHOST"; then
|
|
echo "::: Using public IP $pivpnHOST"
|
|
elif validDomain "$pivpnHOST"; then
|
|
echo "::: Using domain name $pivpnHOST"
|
|
else
|
|
echo "::: $pivpnHOST is not a valid IP or domain name"
|
|
exit 1
|
|
fi
|
|
fi
|
|
echo "pivpnHOST=${pivpnHOST}" >> ${tempsetupVarsFile}
|
|
return
|
|
fi
|
|
|
|
local publicDNSCorrect
|
|
local publicDNSValid
|
|
|
|
if METH=$(whiptail --title "Public IP or DNS" --radiolist "Will clients use a Public IP or DNS Name to connect to your server (press space to select)?" ${r} ${c} 2 \
|
|
"$IPv4pub" "Use this public IP" "ON" \
|
|
"DNS Entry" "Use a public DNS" "OFF" 3>&1 1>&2 2>&3); then
|
|
|
|
if [ "$METH" = "$IPv4pub" ]; then
|
|
pivpnHOST="${IPv4pub}"
|
|
else
|
|
until [[ ${publicDNSCorrect} = True ]]; do
|
|
|
|
until [[ ${publicDNSValid} = True ]]; do
|
|
if PUBLICDNS=$(whiptail --title "PiVPN Setup" --inputbox "What is the public DNS name of this Server?" ${r} ${c} 3>&1 1>&2 2>&3); then
|
|
if validDomain "$PUBLICDNS"; then
|
|
publicDNSValid=True
|
|
pivpnHOST="${PUBLICDNS}"
|
|
else
|
|
whiptail --msgbox --backtitle "PiVPN Setup" --title "Invalid DNS name" "This DNS name is invalid. Please try again.\\n\\n DNS name: $PUBLICDNS\\n" ${r} ${c}
|
|
publicDNSValid=False
|
|
fi
|
|
else
|
|
echo "::: Cancel selected. Exiting..."
|
|
exit 1
|
|
fi
|
|
done
|
|
|
|
if (whiptail --backtitle "PiVPN Setup" --title "Confirm DNS Name" --yesno "Is this correct?\\n\\n Public DNS Name: $PUBLICDNS" ${r} ${c}) then
|
|
publicDNSCorrect=True
|
|
else
|
|
publicDNSCorrect=False
|
|
publicDNSValid=False
|
|
fi
|
|
done
|
|
fi
|
|
else
|
|
echo "::: Cancel selected. Exiting..."
|
|
exit 1
|
|
fi
|
|
|
|
echo "pivpnHOST=${pivpnHOST}" >> ${tempsetupVarsFile}
|
|
}
|
|
|
|
askEncryption(){
|
|
if [ "${runUnattended}" = 'true' ]; then
|
|
|
|
if [ -z "$TWO_POINT_FOUR" ] || [ "$TWO_POINT_FOUR" -eq 1 ]; then
|
|
TWO_POINT_FOUR=1
|
|
echo "::: Using OpenVPN 2.4 features"
|
|
|
|
if [ -z "$pivpnENCRYPT" ]; then
|
|
pivpnENCRYPT=256
|
|
echo "::: Using a 256 bit certificate"
|
|
else
|
|
if [ "$pivpnENCRYPT" -eq 256 ] || [ "$pivpnENCRYPT" -eq 384 ] || [ "$pivpnENCRYPT" -eq 521 ]; then
|
|
echo "::: Using a ${pivpnENCRYPT}-bit certificate"
|
|
else
|
|
echo "::: ${pivpnENCRYPT} is not a valid certificate size, use 256, 384, or 521"
|
|
exit 1
|
|
fi
|
|
fi
|
|
else
|
|
TWO_POINT_FOUR=0
|
|
echo "::: Using traditional OpenVPN configuration"
|
|
|
|
if [ -z "$pivpnENCRYPT" ]; then
|
|
pivpnENCRYPT=2048
|
|
echo "::: Using a 2048 bit certificate"
|
|
else
|
|
if [ "$pivpnENCRYPT" -eq 2048 ] || [ "$pivpnENCRYPT" -eq 3072 ] || [ "$pivpnENCRYPT" -eq 4096 ]; then
|
|
echo "::: Using a ${pivpnENCRYPT}-bit certificate"
|
|
else
|
|
echo "::: ${pivpnENCRYPT} is not a valid certificate size, use 2048, 3072, or 4096"
|
|
exit 1
|
|
fi
|
|
fi
|
|
|
|
if [ -z "$USE_PREDEFINED_DH_PARAM" ]; then
|
|
USE_PREDEFINED_DH_PARAM=1
|
|
echo "::: Pre-defined DH parameters will be used"
|
|
else
|
|
if [ "$USE_PREDEFINED_DH_PARAM" -eq 1 ]; then
|
|
echo "::: Pre-defined DH parameters will be used"
|
|
else
|
|
echo "::: DH parameters will be generated locally"
|
|
fi
|
|
fi
|
|
fi
|
|
|
|
echo "TWO_POINT_FOUR=${TWO_POINT_FOUR}" >> ${tempsetupVarsFile}
|
|
echo "pivpnENCRYPT=${pivpnENCRYPT}" >> ${tempsetupVarsFile}
|
|
echo "USE_PREDEFINED_DH_PARAM=${USE_PREDEFINED_DH_PARAM}" >> ${tempsetupVarsFile}
|
|
return
|
|
fi
|
|
|
|
if [ "$CUSTOMIZE" -eq 0 ]; then
|
|
if [ "$VPN" = "openvpn" ]; then
|
|
TWO_POINT_FOUR=1
|
|
pivpnENCRYPT=256
|
|
echo "TWO_POINT_FOUR=${TWO_POINT_FOUR}" >> ${tempsetupVarsFile}
|
|
echo "pivpnENCRYPT=${pivpnENCRYPT}" >> ${tempsetupVarsFile}
|
|
echo "USE_PREDEFINED_DH_PARAM=${USE_PREDEFINED_DH_PARAM}" >> ${tempsetupVarsFile}
|
|
return
|
|
fi
|
|
fi
|
|
|
|
if (whiptail --backtitle "Setup OpenVPN" --title "Installation mode" --yesno "OpenVPN 2.4 can take advantage of Elliptic Curves to provide higher connection speed and improved security over RSA, while keeping smaller certificates.\\n\\nMoreover, the 'tls-crypt' directive encrypts the certificates being used while authenticating, increasing privacy.\\n\\nIf your clients do run OpenVPN 2.4 or later you can enable these features, otherwise choose 'No' for best compatibility." "${r}" "${c}"); then
|
|
TWO_POINT_FOUR=1
|
|
pivpnENCRYPT=$(whiptail --backtitle "Setup OpenVPN" --title "ECDSA certificate size" --radiolist \
|
|
"Choose the desired size of your certificate (press space to select):\\nThis is a certificate that will be generated on your system. The larger the certificate, the more time this will take. For most applications, it is recommended to use 256 bits. You can increase the number of bits if you care about, however, consider that 256 bits are already as secure as 3072 bit RSA." ${r} ${c} 3 \
|
|
"256" "Use a 256-bit certificate (recommended level)" ON \
|
|
"384" "Use a 384-bit certificate" OFF \
|
|
"521" "Use a 521-bit certificate (paranoid level)" OFF 3>&1 1>&2 2>&3)
|
|
else
|
|
TWO_POINT_FOUR=0
|
|
pivpnENCRYPT=$(whiptail --backtitle "Setup OpenVPN" --title "RSA certificate size" --radiolist \
|
|
"Choose the desired size of your certificate (press space to select):\\nThis is a certificate that will be generated on your system. The larger the certificate, the more time this will take. For most applications, it is recommended to use 2048 bits. If you are paranoid about ... things... then grab a cup of joe and pick 4096 bits." ${r} ${c} 3 \
|
|
"2048" "Use a 2048-bit certificate (recommended level)" ON \
|
|
"3072" "Use a 3072-bit certificate " OFF \
|
|
"4096" "Use a 4096-bit certificate (paranoid level)" OFF 3>&1 1>&2 2>&3)
|
|
fi
|
|
|
|
exitstatus=$?
|
|
if [ $exitstatus != 0 ]; then
|
|
echo "::: Cancel selected. Exiting..."
|
|
exit 1
|
|
fi
|
|
|
|
if ([ "$pivpnENCRYPT" -ge 2048 ] && whiptail --backtitle "Setup OpenVPN" --title "Generate Diffie-Hellman Parameters" --yesno "Generating DH parameters can take many hours on a Raspberry Pi. You can instead use Pre-defined DH parameters recommended by the Internet Engineering Task Force.\\n\\nMore information about those can be found here: https://wiki.mozilla.org/Security/Archive/Server_Side_TLS_4.0#Pre-defined_DHE_groups\\n\\nIf you want unique parameters, choose 'No' and new Diffie-Hellman parameters will be generated on your device." ${r} ${c}); then
|
|
USE_PREDEFINED_DH_PARAM=1
|
|
else
|
|
USE_PREDEFINED_DH_PARAM=0
|
|
fi
|
|
|
|
echo "TWO_POINT_FOUR=${TWO_POINT_FOUR}" >> ${tempsetupVarsFile}
|
|
echo "pivpnENCRYPT=${pivpnENCRYPT}" >> ${tempsetupVarsFile}
|
|
echo "USE_PREDEFINED_DH_PARAM=${USE_PREDEFINED_DH_PARAM}" >> ${tempsetupVarsFile}
|
|
}
|
|
|
|
cidrToMask(){
|
|
# Source: https://stackoverflow.com/a/20767392
|
|
set -- $(( 5 - ($1 / 8) )) 255 255 255 255 $(( (255 << (8 - ($1 % 8))) & 255 )) 0 0 0
|
|
[ $1 -gt 1 ] && shift $1 || shift
|
|
echo ${1-0}.${2-0}.${3-0}.${4-0}
|
|
}
|
|
|
|
confOpenVPN(){
|
|
# Grab the existing Hostname
|
|
host_name=$(hostname -s)
|
|
# Generate a random UUID for this server so that we can use verify-x509-name later that is unique for this server installation.
|
|
NEW_UUID=$(</proc/sys/kernel/random/uuid)
|
|
# Create a unique server name using the host name and UUID
|
|
SERVER_NAME="${host_name}_${NEW_UUID}"
|
|
|
|
# Backup the openvpn folder
|
|
OPENVPN_BACKUP="openvpn_$(date +%Y-%m-%d-%H%M%S).tar.gz"
|
|
echo "::: Backing up the openvpn folder to /etc/${OPENVPN_BACKUP}"
|
|
CURRENT_UMASK=$(umask)
|
|
umask 0077
|
|
$SUDO tar czf "/etc/${OPENVPN_BACKUP}" /etc/openvpn &> /dev/null
|
|
umask "$CURRENT_UMASK"
|
|
|
|
if [ -f /etc/openvpn/server.conf ]; then
|
|
$SUDO rm /etc/openvpn/server.conf
|
|
fi
|
|
|
|
if [ -d /etc/openvpn/ccd ]; then
|
|
$SUDO rm -rf /etc/openvpn/ccd
|
|
fi
|
|
|
|
# Create folder to store client specific directives used to push static IPs
|
|
$SUDO mkdir /etc/openvpn/ccd
|
|
|
|
# If easy-rsa exists, remove it
|
|
if [[ -d /etc/openvpn/easy-rsa/ ]]; then
|
|
$SUDO rm -rf /etc/openvpn/easy-rsa/
|
|
fi
|
|
|
|
# Get easy-rsa
|
|
wget -qO- "${easyrsaRel}" | $SUDO tar xz --one-top-level=/etc/openvpn/easy-rsa --strip-components 1
|
|
if ! test -s /etc/openvpn/easy-rsa/easyrsa; then
|
|
echo "$0: ERR: Failed to download EasyRSA."
|
|
exit 1
|
|
fi
|
|
|
|
# fix ownership
|
|
$SUDO chown -R root:root /etc/openvpn/easy-rsa
|
|
$SUDO mkdir /etc/openvpn/easy-rsa/pki
|
|
$SUDO chmod 700 /etc/openvpn/easy-rsa/pki
|
|
|
|
cd /etc/openvpn/easy-rsa || exit 1
|
|
|
|
if [ "$TWO_POINT_FOUR" -eq 1 ]; then
|
|
pivpnCERT="ec"
|
|
pivpnTLSPROT="tls-crypt"
|
|
else
|
|
pivpnCERT="rsa"
|
|
pivpnTLSPROT="tls-auth"
|
|
fi
|
|
|
|
# Write out new vars file
|
|
echo "if [ -z \"\$EASYRSA_CALLER\" ]; then
|
|
echo \"Nope.\" >&2
|
|
return 1
|
|
fi
|
|
set_var EASYRSA \"/etc/openvpn/easy-rsa\"
|
|
set_var EASYRSA_PKI \"\$EASYRSA/pki\"
|
|
set_var EASYRSA_CRL_DAYS 3650
|
|
set_var EASYRSA_ALGO ${pivpnCERT}" | $SUDO tee vars >/dev/null
|
|
|
|
# Set certificate type
|
|
if [ "$pivpnENCRYPT" -ge 2048 ]; then
|
|
echo "set_var EASYRSA_KEY_SIZE ${pivpnENCRYPT}" | $SUDO tee -a vars >/dev/null
|
|
else
|
|
declare -A ECDSA_MAP=(["256"]="prime256v1" ["384"]="secp384r1" ["521"]="secp521r1")
|
|
echo "set_var EASYRSA_CURVE ${ECDSA_MAP["${pivpnENCRYPT}"]}" | $SUDO tee -a vars >/dev/null
|
|
fi
|
|
|
|
# Remove any previous keys
|
|
${SUDOE} ./easyrsa --batch init-pki
|
|
|
|
# Build the certificate authority
|
|
printf "::: Building CA...\\n"
|
|
${SUDOE} ./easyrsa --batch build-ca nopass
|
|
printf "\\n::: CA Complete.\\n"
|
|
|
|
if [ "$pivpnCERT" = "rsa" ] && [ "$USE_PREDEFINED_DH_PARAM" -ne 1 ]; then
|
|
if [ "${runUnattended}" = 'true' ]; then
|
|
echo "::: The server key, Diffie-Hellman parameters, and HMAC key will now be generated."
|
|
else
|
|
whiptail --msgbox --backtitle "Setup OpenVPN" --title "Server Information" "The server key, Diffie-Hellman parameters, and HMAC key will now be generated." ${r} ${c}
|
|
fi
|
|
elif [ "$pivpnCERT" = "ec" ] || { [ "$pivpnCERT" = "rsa" ] && [ "$USE_PREDEFINED_DH_PARAM" -eq 1 ]; }; then
|
|
if [ "${runUnattended}" = 'true' ]; then
|
|
echo "::: The server key and HMAC key will now be generated."
|
|
else
|
|
whiptail --msgbox --backtitle "Setup OpenVPN" --title "Server Information" "The server key and HMAC key will now be generated." ${r} ${c}
|
|
fi
|
|
fi
|
|
|
|
# Build the server
|
|
EASYRSA_CERT_EXPIRE=3650 ${SUDOE} ./easyrsa build-server-full "${SERVER_NAME}" nopass
|
|
|
|
if [ "$pivpnCERT" = "rsa" ]; then
|
|
if [ "${USE_PREDEFINED_DH_PARAM}" -eq 1 ]; then
|
|
# Use Diffie-Hellman parameters from RFC 7919 (FFDHE)
|
|
${SUDOE} install -m 644 "${pivpnFilesDir}"/files/etc/openvpn/easy-rsa/pki/ffdhe"${pivpnENCRYPT}".pem pki/dh"${pivpnENCRYPT}".pem
|
|
else
|
|
# Generate Diffie-Hellman key exchange
|
|
${SUDOE} ./easyrsa gen-dh
|
|
${SUDOE} mv pki/dh.pem pki/dh"${pivpnENCRYPT}".pem
|
|
fi
|
|
fi
|
|
|
|
# Generate static HMAC key to defend against DDoS
|
|
${SUDOE} openvpn --genkey --secret pki/ta.key
|
|
|
|
# Generate an empty Certificate Revocation List
|
|
${SUDOE} ./easyrsa gen-crl
|
|
${SUDOE} cp pki/crl.pem /etc/openvpn/crl.pem
|
|
if ! getent passwd openvpn; then
|
|
${SUDOE} adduser --system --home /var/lib/openvpn/ --group --disabled-login ${debianOvpnUserGroup%:*}
|
|
fi
|
|
${SUDOE} chown "$debianOvpnUserGroup" /etc/openvpn/crl.pem
|
|
|
|
# Write config file for server using the template.txt file
|
|
$SUDO install -m 644 "$pivpnFilesDir"/files/etc/openvpn/server_config.txt /etc/openvpn/server.conf
|
|
|
|
# Apply client DNS settings
|
|
${SUDOE} sed -i '0,/\(dhcp-option DNS \)/ s/\(dhcp-option DNS \).*/\1'${pivpnDNS1}'\"/' /etc/openvpn/server.conf
|
|
|
|
if [ -z ${pivpnDNS2} ]; then
|
|
${SUDOE} sed -i '/\(dhcp-option DNS \)/{n;N;d}' /etc/openvpn/server.conf
|
|
else
|
|
${SUDOE} sed -i '0,/\(dhcp-option DNS \)/! s/\(dhcp-option DNS \).*/\1'${pivpnDNS2}'\"/' /etc/openvpn/server.conf
|
|
fi
|
|
|
|
# Set the user encryption key size
|
|
$SUDO sed -i "s#\\(dh /etc/openvpn/easy-rsa/pki/dh\\).*#\\1${pivpnENCRYPT}.pem#" /etc/openvpn/server.conf
|
|
|
|
if [ "$pivpnTLSPROT" = "tls-crypt" ]; then
|
|
#If they enabled 2.4 use tls-crypt instead of tls-auth to encrypt control channel
|
|
$SUDO sed -i "s/tls-auth \/etc\/openvpn\/easy-rsa\/pki\/ta.key 0/tls-crypt \/etc\/openvpn\/easy-rsa\/pki\/ta.key/" /etc/openvpn/server.conf
|
|
fi
|
|
|
|
if [ "$pivpnCERT" = "ec" ]; then
|
|
#If they enabled 2.4 disable dh parameters and specify the matching curve from the ECDSA certificate
|
|
$SUDO sed -i "s/\(dh \/etc\/openvpn\/easy-rsa\/pki\/dh\).*/dh none\necdh-curve ${ECDSA_MAP["${pivpnENCRYPT}"]}/" /etc/openvpn/server.conf
|
|
elif [ "$pivpnCERT" = "rsa" ]; then
|
|
# Otherwise set the user encryption key size
|
|
$SUDO sed -i "s#\\(dh /etc/openvpn/easy-rsa/pki/dh\\).*#\\1${pivpnENCRYPT}.pem#" /etc/openvpn/server.conf
|
|
fi
|
|
|
|
# if they modified VPN network put value in server.conf
|
|
if [ "$pivpnNET" != "10.8.0.0" ]; then
|
|
$SUDO sed -i "s/10.8.0.0/${pivpnNET}/g" /etc/openvpn/server.conf
|
|
fi
|
|
|
|
# if they modified VPN subnet class put value in server.conf
|
|
if [ "$(cidrToMask "$subnetClass")" != "255.255.255.0" ]; then
|
|
$SUDO sed -i "s/255.255.255.0/$(cidrToMask "$subnetClass")/g" /etc/openvpn/server.conf
|
|
fi
|
|
|
|
# if they modified port put value in server.conf
|
|
if [ "$pivpnPORT" != 1194 ]; then
|
|
$SUDO sed -i "s/1194/${pivpnPORT}/g" /etc/openvpn/server.conf
|
|
fi
|
|
|
|
# if they modified protocol put value in server.conf
|
|
if [ "$pivpnPROTO" != "udp" ]; then
|
|
$SUDO sed -i "s/proto udp/proto tcp/g" /etc/openvpn/server.conf
|
|
fi
|
|
|
|
if [ -n "$pivpnSEARCHDOMAIN" ]; then
|
|
$SUDO sed -i "0,/\\(.*dhcp-option.*\\)/s//push \"dhcp-option DOMAIN ${pivpnSEARCHDOMAIN}\" \\n&/" /etc/openvpn/server.conf
|
|
fi
|
|
|
|
# write out server certs to conf file
|
|
$SUDO sed -i "s#\\(key /etc/openvpn/easy-rsa/pki/private/\\).*#\\1${SERVER_NAME}.key#" /etc/openvpn/server.conf
|
|
$SUDO sed -i "s#\\(cert /etc/openvpn/easy-rsa/pki/issued/\\).*#\\1${SERVER_NAME}.crt#" /etc/openvpn/server.conf
|
|
}
|
|
|
|
confOVPN(){
|
|
$SUDO install -m 644 "$pivpnFilesDir"/files/etc/openvpn/easy-rsa/pki/Default.txt /etc/openvpn/easy-rsa/pki/Default.txt
|
|
|
|
$SUDO sed -i 's/IPv4pub/'"$pivpnHOST"'/' /etc/openvpn/easy-rsa/pki/Default.txt
|
|
|
|
# if they modified port put value in Default.txt for clients to use
|
|
if [ "$pivpnPORT" != 1194 ]; then
|
|
$SUDO sed -i -e "s/1194/${pivpnPORT}/g" /etc/openvpn/easy-rsa/pki/Default.txt
|
|
fi
|
|
|
|
# if they modified protocol put value in Default.txt for clients to use
|
|
if [ "$pivpnPROTO" != "udp" ]; then
|
|
$SUDO sed -i -e "s/proto udp/proto tcp/g" /etc/openvpn/easy-rsa/pki/Default.txt
|
|
fi
|
|
|
|
# verify server name to strengthen security
|
|
$SUDO sed -i "s/SRVRNAME/${SERVER_NAME}/" /etc/openvpn/easy-rsa/pki/Default.txt
|
|
|
|
if [ "$pivpnTLSPROT" = "tls-crypt" ]; then
|
|
#If they enabled 2.4 remove key-direction options since it's not required
|
|
$SUDO sed -i "/key-direction 1/d" /etc/openvpn/easy-rsa/pki/Default.txt
|
|
fi
|
|
}
|
|
|
|
confWireGuard(){
|
|
if [ -d /etc/wireguard ]; then
|
|
# Backup the wireguard folder
|
|
WIREGUARD_BACKUP="wireguard_$(date +%Y-%m-%d-%H%M%S).tar.gz"
|
|
echo "::: Backing up the wireguard folder to /etc/${WIREGUARD_BACKUP}"
|
|
CURRENT_UMASK=$(umask)
|
|
umask 0077
|
|
$SUDO tar czf "/etc/${WIREGUARD_BACKUP}" /etc/wireguard &> /dev/null
|
|
umask "$CURRENT_UMASK"
|
|
|
|
if [ -f /etc/wireguard/wg0.conf ]; then
|
|
$SUDO rm /etc/wireguard/wg0.conf
|
|
fi
|
|
else
|
|
# If compiled from source, the wireguard folder is not being created
|
|
$SUDO mkdir /etc/wireguard
|
|
fi
|
|
|
|
# Ensure that only root is able to enter the wireguard folder
|
|
$SUDO chown root:root /etc/wireguard
|
|
$SUDO chmod 700 /etc/wireguard
|
|
|
|
if [ "${runUnattended}" = 'true' ]; then
|
|
echo "::: The Server Keys will now be generated."
|
|
else
|
|
whiptail --title "Server Information" --msgbox "The Server Keys will now be generated." "${r}" "${c}"
|
|
fi
|
|
|
|
# Remove configs and keys folders to make space for a new server when using 'Repair' or 'Reconfigure'
|
|
# over an existing installation
|
|
$SUDO rm -rf /etc/wireguard/configs
|
|
$SUDO rm -rf /etc/wireguard/keys
|
|
|
|
$SUDO mkdir -p /etc/wireguard/configs
|
|
$SUDO touch /etc/wireguard/configs/clients.txt
|
|
$SUDO mkdir -p /etc/wireguard/keys
|
|
|
|
# Generate private key and derive public key from it
|
|
wg genkey | $SUDO tee /etc/wireguard/keys/server_priv &> /dev/null
|
|
$SUDO cat /etc/wireguard/keys/server_priv | wg pubkey | $SUDO tee /etc/wireguard/keys/server_pub &> /dev/null
|
|
|
|
echo "::: Server Keys have been generated."
|
|
|
|
echo "[Interface]
|
|
PrivateKey = $($SUDO cat /etc/wireguard/keys/server_priv)
|
|
Address = ${vpnGw}/${subnetClass}
|
|
ListenPort = ${pivpnPORT}" | $SUDO tee /etc/wireguard/wg0.conf &> /dev/null
|
|
echo "::: Server config generated."
|
|
}
|
|
|
|
confNetwork(){
|
|
# Enable forwarding of internet traffic
|
|
$SUDO sed -i '/net.ipv4.ip_forward=1/s/^#//g' /etc/sysctl.conf
|
|
$SUDO sysctl -p > /dev/null
|
|
|
|
if [ "$USING_UFW" -eq 1 ]; then
|
|
|
|
echo "::: Detected UFW is enabled."
|
|
echo "::: Adding UFW rules..."
|
|
### Basic safeguard: if file is empty, there's been something weird going on.
|
|
### Note: no safeguard against imcomplete content as a result of previous failures.
|
|
if test -s /etc/ufw/before.rules; then
|
|
$SUDO cp -f /etc/ufw/before.rules /etc/ufw/before.rules.pre-pivpn
|
|
else
|
|
echo "$0: ERR: Sorry, won't touch empty file \"/etc/ufw/before.rules\".";
|
|
exit 1;
|
|
fi
|
|
### If there is already a "*nat" section just add our POSTROUTING MASQUERADE
|
|
if $SUDO grep -q "*nat" /etc/ufw/before.rules; then
|
|
### Onyl add the NAT rule if it isn't already there
|
|
if ! $SUDO grep -q "${VPN}-nat-rule" /etc/ufw/before.rules; then
|
|
$SUDO sed "/^*nat/{n;s/\(:POSTROUTING ACCEPT .*\)/\1\n-I POSTROUTING -s ${pivpnNET}\/${subnetClass} -o ${IPv4dev} -j MASQUERADE -m comment --comment ${VPN}-nat-rule/}" -i /etc/ufw/before.rules
|
|
fi
|
|
else
|
|
$SUDO sed "/delete these required/i *nat\n:POSTROUTING ACCEPT [0:0]\n-I POSTROUTING -s ${pivpnNET}\/${subnetClass} -o ${IPv4dev} -j MASQUERADE -m comment --comment ${VPN}-nat-rule\nCOMMIT\n" -i /etc/ufw/before.rules
|
|
fi
|
|
# Insert rules at the beginning of the chain (in case there are other rules that may drop the traffic)
|
|
$SUDO ufw insert 1 allow "${pivpnPORT}"/"${pivpnPROTO}" >/dev/null
|
|
$SUDO ufw route insert 1 allow in on "${pivpnDEV}" from "${pivpnNET}/${subnetClass}" out on "${IPv4dev}" to any >/dev/null
|
|
|
|
$SUDO ufw reload >/dev/null
|
|
echo "::: UFW configuration completed."
|
|
|
|
elif [ "$USING_UFW" -eq 0 ]; then
|
|
|
|
# Now some checks to detect which rules we need to add. On a newly installed system all policies
|
|
# should be ACCEPT, so the only required rule would be the MASQUERADE one.
|
|
|
|
if ! $SUDO iptables -t nat -S | grep -q "${VPN}-nat-rule"; then
|
|
$SUDO iptables -t nat -I POSTROUTING -s "${pivpnNET}/${subnetClass}" -o "${IPv4dev}" -j MASQUERADE -m comment --comment "${VPN}-nat-rule"
|
|
fi
|
|
|
|
# Count how many rules are in the INPUT and FORWARD chain. When parsing input from
|
|
# iptables -S, '^-P' skips the policies and 'ufw-' skips ufw chains (in case ufw was found
|
|
# installed but not enabled).
|
|
|
|
# Grep returns non 0 exit code where there are no matches, however that would make the script exit,
|
|
# for this reasons we use '|| true' to force exit code 0
|
|
INPUT_RULES_COUNT="$($SUDO iptables -S INPUT | grep -vcE '(^-P|ufw-)')"
|
|
FORWARD_RULES_COUNT="$($SUDO iptables -S FORWARD | grep -vcE '(^-P|ufw-)')"
|
|
|
|
INPUT_POLICY="$($SUDO iptables -S INPUT | grep '^-P' | awk '{print $3}')"
|
|
FORWARD_POLICY="$($SUDO iptables -S FORWARD | grep '^-P' | awk '{print $3}')"
|
|
|
|
# If rules count is not zero, we assume we need to explicitly allow traffic. Same conclusion if
|
|
# there are no rules and the policy is not ACCEPT. Note that rules are being added to the top of the
|
|
# chain (using -I).
|
|
|
|
if [ "$INPUT_RULES_COUNT" -ne 0 ] || [ "$INPUT_POLICY" != "ACCEPT" ]; then
|
|
if $SUDO iptables -S | grep -q "${VPN}-input-rule"; then
|
|
INPUT_CHAIN_EDITED=0
|
|
else
|
|
$SUDO iptables -I INPUT 1 -i "${IPv4dev}" -p "${pivpnPROTO}" --dport "${pivpnPORT}" -j ACCEPT -m comment --comment "${VPN}-input-rule"
|
|
fi
|
|
INPUT_CHAIN_EDITED=1
|
|
else
|
|
INPUT_CHAIN_EDITED=0
|
|
fi
|
|
|
|
if [ "$FORWARD_RULES_COUNT" -ne 0 ] || [ "$FORWARD_POLICY" != "ACCEPT" ]; then
|
|
if $SUDO iptables -S | grep -q "${VPN}-forward-rule"; then
|
|
FORWARD_CHAIN_EDITED=0
|
|
else
|
|
$SUDO iptables -I FORWARD 1 -d "${pivpnNET}/${subnetClass}" -i "${IPv4dev}" -o "${pivpnDEV}" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT -m comment --comment "${VPN}-forward-rule"
|
|
$SUDO iptables -I FORWARD 2 -s "${pivpnNET}/${subnetClass}" -i "${pivpnDEV}" -o "${IPv4dev}" -j ACCEPT -m comment --comment "${VPN}-forward-rule"
|
|
fi
|
|
FORWARD_CHAIN_EDITED=1
|
|
else
|
|
FORWARD_CHAIN_EDITED=0
|
|
fi
|
|
|
|
case ${PLAT} in
|
|
Debian|Raspbian|Ubuntu)
|
|
$SUDO iptables-save | $SUDO tee /etc/iptables/rules.v4 > /dev/null
|
|
;;
|
|
esac
|
|
|
|
echo "INPUT_CHAIN_EDITED=${INPUT_CHAIN_EDITED}" >> ${tempsetupVarsFile}
|
|
echo "FORWARD_CHAIN_EDITED=${FORWARD_CHAIN_EDITED}" >> ${tempsetupVarsFile}
|
|
|
|
fi
|
|
}
|
|
|
|
confLogging() {
|
|
echo "if \$programname == 'ovpn-server' then /var/log/openvpn.log
|
|
if \$programname == 'ovpn-server' then stop" | $SUDO tee /etc/rsyslog.d/30-openvpn.conf > /dev/null
|
|
|
|
echo "/var/log/openvpn.log
|
|
{
|
|
rotate 4
|
|
weekly
|
|
missingok
|
|
notifempty
|
|
compress
|
|
delaycompress
|
|
sharedscripts
|
|
postrotate
|
|
invoke-rc.d rsyslog rotate >/dev/null 2>&1 || true
|
|
endscript
|
|
}" | $SUDO tee /etc/logrotate.d/openvpn > /dev/null
|
|
|
|
# Restart the logging service
|
|
case ${PLAT} in
|
|
Debian|Raspbian|Ubuntu)
|
|
$SUDO systemctl restart rsyslog.service || true
|
|
;;
|
|
esac
|
|
}
|
|
|
|
|
|
restartServices(){
|
|
echo "::: Restarting services..."
|
|
case ${PLAT} in
|
|
Debian|Raspbian|Ubuntu)
|
|
if [ "$VPN" = "openvpn" ]; then
|
|
$SUDO systemctl enable openvpn.service &> /dev/null
|
|
$SUDO systemctl restart openvpn.service
|
|
elif [ "$VPN" = "wireguard" ]; then
|
|
$SUDO systemctl enable wg-quick@wg0.service &> /dev/null
|
|
$SUDO systemctl restart wg-quick@wg0.service
|
|
fi
|
|
;;
|
|
esac
|
|
}
|
|
|
|
askUnattendedUpgrades(){
|
|
if [ "${runUnattended}" = 'true' ]; then
|
|
if [ -z "$UNATTUPG" ]; then
|
|
UNATTUPG=1
|
|
echo "::: No preference regarding unattended upgrades, assuming yes"
|
|
else
|
|
if [ "$UNATTUPG" -eq 1 ]; then
|
|
echo "::: Enabling unattended upgrades"
|
|
else
|
|
echo "::: Skipping unattended upgrades"
|
|
fi
|
|
fi
|
|
echo "UNATTUPG=${UNATTUPG}" >> ${tempsetupVarsFile}
|
|
return
|
|
fi
|
|
|
|
whiptail --msgbox --backtitle "Security Updates" --title "Unattended Upgrades" "Since this server will have at least one port open to the internet, it is recommended you enable unattended-upgrades.\\nThis feature will check daily for security package updates only and apply them when necessary.\\nIt will NOT automatically reboot the server so to fully apply some updates you should periodically reboot." ${r} ${c}
|
|
|
|
if (whiptail --backtitle "Security Updates" --title "Unattended Upgrades" --yesno "Do you want to enable unattended upgrades of security patches to this server?" ${r} ${c}); then
|
|
UNATTUPG=1
|
|
else
|
|
UNATTUPG=0
|
|
fi
|
|
|
|
echo "UNATTUPG=${UNATTUPG}" >> ${tempsetupVarsFile}
|
|
}
|
|
|
|
confUnattendedUpgrades(){
|
|
local PIVPN_DEPS
|
|
PIVPN_DEPS=(unattended-upgrades)
|
|
installDependentPackages PIVPN_DEPS[@]
|
|
aptConfDir="/etc/apt/apt.conf.d"
|
|
|
|
if [ "$PLAT" = "Ubuntu" ]; then
|
|
|
|
# Ubuntu 50unattended-upgrades should already just have security enabled
|
|
# so we just need to configure the 10periodic file
|
|
echo "APT::Periodic::Update-Package-Lists \"1\";
|
|
APT::Periodic::Download-Upgradeable-Packages \"1\";
|
|
APT::Periodic::AutocleanInterval \"5\";
|
|
APT::Periodic::Unattended-Upgrade \"1\";" | $SUDO tee "${aptConfDir}/10periodic" > /dev/null
|
|
|
|
else
|
|
|
|
# Raspbian's unattended-upgrades package downloads Debian's config, so we copy over the proper config
|
|
# Source: https://github.com/mvo5/unattended-upgrades/blob/master/data/50unattended-upgrades.Raspbian
|
|
if [ "$PLAT" = "Raspbian" ]; then
|
|
$SUDO install -m 644 "${pivpnFilesDir}/files${aptConfDir}/50unattended-upgrades.Raspbian" "${aptConfDir}/50unattended-upgrades"
|
|
fi
|
|
|
|
# Add the remaining settings for all other distributions
|
|
echo "APT::Periodic::Enable \"1\";
|
|
APT::Periodic::Update-Package-Lists \"1\";
|
|
APT::Periodic::Download-Upgradeable-Packages \"1\";
|
|
APT::Periodic::Unattended-Upgrade \"1\";
|
|
APT::Periodic::AutocleanInterval \"7\";
|
|
APT::Periodic::Verbose \"0\";" | $SUDO tee "${aptConfDir}/02periodic" > /dev/null
|
|
|
|
fi
|
|
|
|
# Enable automatic updates via the bullseye repository when installing from debian package
|
|
if [ "$VPN" = "wireguard" ]; then
|
|
if [ -f /etc/apt/sources.list.d/pivpn-bullseye.list ]; then
|
|
if ! grep -q "\"o=$PLAT,n=bullseye\";" "${aptConfDir}/50unattended-upgrades"; then
|
|
$SUDO sed -i "/Unattended-Upgrade::Origins-Pattern {/a\"o=$PLAT,n=bullseye\";" "${aptConfDir}/50unattended-upgrades"
|
|
fi
|
|
fi
|
|
fi
|
|
}
|
|
|
|
installScripts(){
|
|
# Ensure /opt exists (issue #607)
|
|
$SUDO mkdir -p /opt
|
|
|
|
if [[ ${VPN} == 'wireguard' ]]; then
|
|
othervpn='openvpn'
|
|
else
|
|
othervpn='wireguard'
|
|
fi
|
|
|
|
# Symlink scripts from /usr/local/src/pivpn to their various locations
|
|
echo -n -e "::: Installing scripts to ${pivpnScriptDir}...\n"
|
|
|
|
# if the other protocol file exists it has been installed
|
|
if [ -r "${setupConfigDir}/${othervpn}/${setupVarsFile}" ]; then
|
|
# Both are installed, no bash completion, unlink if already there
|
|
$SUDO unlink /etc/bash_completion.d/pivpn
|
|
|
|
# Unlink the protocol specific pivpn script and symlink the common
|
|
# script to the location instead
|
|
$SUDO unlink /usr/local/bin/pivpn
|
|
$SUDO ln -s -T "${pivpnFilesDir}/scripts/pivpn" /usr/local/bin/pivpn
|
|
else
|
|
# Only one protocol is installed, symlink bash completion, the pivpn script
|
|
# and the script directory
|
|
$SUDO ln -s -T "${pivpnFilesDir}/scripts/${VPN}/bash-completion" /etc/bash_completion.d/pivpn
|
|
$SUDO ln -s -T "${pivpnFilesDir}/scripts/${VPN}/pivpn.sh" /usr/local/bin/pivpn
|
|
$SUDO ln -s "${pivpnFilesDir}/scripts/" "${pivpnScriptDir}"
|
|
# shellcheck disable=SC1091
|
|
. /etc/bash_completion.d/pivpn
|
|
fi
|
|
|
|
echo " done."
|
|
}
|
|
|
|
displayFinalMessage(){
|
|
if [ "${runUnattended}" = 'true' ]; then
|
|
echo "::: Installation Complete!"
|
|
echo "::: Now run 'pivpn add' to create the client profiles."
|
|
echo "::: Run 'pivpn help' to see what else you can do!"
|
|
echo
|
|
echo "::: If you run into any issue, please read all our documentation carefully."
|
|
echo "::: All incomplete posts or bug reports will be ignored or deleted."
|
|
echo
|
|
echo "::: Thank you for using PiVPN."
|
|
echo "::: It is strongly recommended you reboot after installation."
|
|
return
|
|
fi
|
|
|
|
# Final completion message to user
|
|
whiptail --msgbox --backtitle "Make it so." --title "Installation Complete!" "Now run 'pivpn add' to create the client profiles.
|
|
Run 'pivpn help' to see what else you can do!\\n\\nIf you run into any issue, please read all our documentation carefully.
|
|
All incomplete posts or bug reports will be ignored or deleted.\\n\\nThank you for using PiVPN." ${r} ${c}
|
|
if (whiptail --title "Reboot" --yesno --defaultno "It is strongly recommended you reboot after installation. Would you like to reboot now?" ${r} ${c}); then
|
|
whiptail --title "Rebooting" --msgbox "The system will now reboot." ${r} ${c}
|
|
printf "\\nRebooting system...\\n"
|
|
$SUDO sleep 3
|
|
$SUDO shutdown -r now
|
|
fi
|
|
}
|
|
|
|
main "$@"
|