mirror of
https://github.com/mynodebtc/mynode.git
synced 2024-11-14 17:39:16 +00:00
1068 lines
37 KiB
Bash
Executable File
1068 lines
37 KiB
Bash
Executable File
#!/usr/bin/env bash
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# PiVPN: Trivial OpenVPN setup and configuration
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# Easiest setup and mangement of OpenVPN on Raspberry Pi
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# http://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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set -e
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######## VARIABLES #########
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setupVars=/etc/pivpn/setupVars.conf
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useUpdateVars=false
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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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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="${PKG_MANAGER} -s -o Debug::NoLocking=true upgrade | grep -c ^Inst || true"
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PIVPN_DEPS=(openvpn git tar wget grep iptables-persistent dnsutils expect whiptail net-tools)
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### ###
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pivpnGitUrl="https://github.com/pivpn/pivpn.git"
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pivpnVersionHash="8e3a95152412a9d35b67d51bfc80379350815252"
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pivpnFilesDir="/etc/.pivpn"
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easyrsaVer="3.0.6"
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easyrsaRel="https://github.com/OpenVPN/easy-rsa/releases/download/v${easyrsaVer}/EasyRSA-unix-v${easyrsaVer}.tgz"
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# Raspbian's unattended-upgrades package downloads Debian's config, so this is the link for the proper config
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UNATTUPG_RELEASE="1.9"
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UNATTUPG_CONFIG="https://github.com/mvo5/unattended-upgrades/archive/${UNATTUPG_RELEASE}.tar.gz"
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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=$(( c < 70 ? 70 : c ))
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######## Undocumented Flags. Shhh ########
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skipSpaceCheck=false
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reconfigure=false
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runUnattended=false
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# Find IP used to route to outside world
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IPv4dev=$(ip route get 8.8.8.8 | awk '{for(i=1;i<=NF;i++)if($i~/dev/)print $(i+1)}')
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IPv4addr=$(ip route get 8.8.8.8| awk '{print $7}')
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IPv4gw=$(ip route get 8.8.8.8 | awk '{print $3}')
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IPv4dns=8.8.8.8
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availableInterfaces=$(ip -o link | grep "state UP" | awk '{print $2}' | cut -d':' -f1 | cut -d'@' -f1)
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dhcpcdFile=/etc/dhcpcd.conf
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# Next see if we are on a tested and supported OS
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function noOS_Support() {
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echo "INVALID OS DETECTED"
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exit 1
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}
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function maybeOS_Support() {
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echo "OS not officially supported. Continuing."
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}
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# Compatibility
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distro_check() {
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# if lsb_release command is on their system
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if hash lsb_release 2>/dev/null; then
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PLAT=$(lsb_release -si)
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OSCN=$(lsb_release -sc) # We want this to be trusty xenial or jessie
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else # else get info from os-release
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source /etc/os-release
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PLAT=$(awk '{print $1}' <<< "$NAME")
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VER="$VERSION_ID"
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declare -A VER_MAP=(["9"]="stretch" ["8"]="jessie" ["18.04"]="bionic" ["16.04"]="xenial" ["14.04"]="trusty")
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OSCN=${VER_MAP["${VER}"]}
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fi
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if [[ ${OSCN} != "bionic" ]]; then
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PIVPN_DEPS+=(dhcpcd5)
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fi
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case ${PLAT} in
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Ubuntu|Raspbian|Debian|Devuan)
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case ${OSCN} in
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trusty|xenial|jessie|stretch)
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;;
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*)
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#maybeOS_Support
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;;
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esac
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;;
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*)
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noOS_Support
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;;
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esac
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echo "${PLAT}" > /tmp/DET_PLATFORM
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}
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####### FUNCTIONS ##########
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spinner()
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{
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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 $1}' | grep "${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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welcomeDialogs() {
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# Skip welcome dialogs
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echo "Skipping welcome dialogs..."
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}
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chooseUser() {
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echo "pivpn" > /tmp/pivpnUSR
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}
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verifyFreeDiskSpace() {
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# We've got plenty of disk space on the SD card
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echo "Skipping disk space check..."
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}
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chooseInterface() {
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# We use the ethernet port
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pivpnInterface="eth0"
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echo ${pivpnInterface} > /tmp/pivpnINT
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}
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avoidStaticIPv4Ubuntu() {
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# Not ubuntu...
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echo "We aren't Ubuntu (probably)..."
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}
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setDHCPCD() {
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# Append these lines to dhcpcd.conf to enable a static IP
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echo "interface ${pivpnInterface}
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static ip_address=${IPv4addr}
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static routers=${IPv4gw}
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static domain_name_servers=${IPv4dns}" | $SUDO tee -a ${dhcpcdFile} >/dev/null
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}
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setStaticIPv4() {
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# Tries to set the IPv4 address
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if [[ -f /etc/dhcpcd.conf ]]; then
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if grep -q "${IPv4addr}" ${dhcpcdFile}; then
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echo "::: Static IP already configured."
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else
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setDHCPCD
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$SUDO ip addr replace dev "${pivpnInterface}" "${IPv4addr}"
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echo ":::"
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echo "::: Setting IP to ${IPv4addr}. You may need to restart after the install is complete."
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echo ":::"
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fi
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else
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echo "::: Critical: Unable to locate configuration file to set static IPv4 address!"
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exit 1
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fi
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}
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function valid_ip()
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{
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local ip=$1
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local stat=1
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if [[ $ip =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]; then
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OIFS=$IFS
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IFS='.'
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ip=($ip)
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IFS=$OIFS
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[[ ${ip[0]} -le 255 && ${ip[1]} -le 255 \
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&& ${ip[2]} -le 255 && ${ip[3]} -le 255 ]]
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stat=$?
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fi
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return $stat
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}
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#Call this function to use a regex to check user input for a valid custom domain
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function valid_domain()
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{
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local domain=$1
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local stat=1
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if [[ $domain =~ ^[a-zA-Z0-9][a-zA-Z0-9-]{1,61}\.[a-zA-Z]{2,}$ ]]; then
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stat=$?
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fi
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return $stat
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}
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installScripts() {
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# Install the scripts from /etc/.pivpn to their various locations
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$SUDO echo ":::"
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$SUDO echo -n "::: Installing scripts to /opt/pivpn..."
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if [ ! -d /opt/pivpn ]; then
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$SUDO mkdir /opt/pivpn
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$SUDO chown "$pivpnUser":root /opt/pivpn
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$SUDO chmod u+srwx /opt/pivpn
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fi
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$SUDO cp /etc/.pivpn/scripts/makeOVPN.sh /opt/pivpn/makeOVPN.sh
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$SUDO cp /etc/.pivpn/scripts/clientStat.sh /opt/pivpn/clientStat.sh
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$SUDO cp /etc/.pivpn/scripts/listOVPN.sh /opt/pivpn/listOVPN.sh
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$SUDO cp /etc/.pivpn/scripts/removeOVPN.sh /opt/pivpn/removeOVPN.sh
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$SUDO cp /etc/.pivpn/scripts/uninstall.sh /opt/pivpn/uninstall.sh
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$SUDO cp /etc/.pivpn/scripts/pivpnDebug.sh /opt/pivpn/pivpnDebug.sh
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$SUDO chmod 0755 /opt/pivpn/{makeOVPN,clientStat,listOVPN,removeOVPN,uninstall,pivpnDebug}.sh
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$SUDO cp /etc/.pivpn/pivpn /usr/local/bin/pivpn
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$SUDO chmod 0755 /usr/local/bin/pivpn
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$SUDO cp /etc/.pivpn/scripts/bash-completion /etc/bash_completion.d/pivpn
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. /etc/bash_completion.d/pivpn
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# Copy interface setting for debug
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$SUDO cp /tmp/pivpnINT /etc/pivpn/pivpnINTERFACE
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$SUDO echo " done."
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}
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package_check_install() {
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dpkg-query -W -f='${Status}' "${1}" 2>/dev/null | grep -c "ok installed" || ${PKG_INSTALL} "${1}"
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}
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addSoftwareRepo() {
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# Add the official OpenVPN repo for distros that don't have the latest version in their default repos
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case ${PLAT} in
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Ubuntu|Debian|Devuan)
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case ${OSCN} in
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trusty|xenial|wheezy|jessie)
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wget -qO- https://swupdate.openvpn.net/repos/repo-public.gpg | $SUDO apt-key add -
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echo "deb http://build.openvpn.net/debian/openvpn/stable $OSCN main" | $SUDO tee /etc/apt/sources.list.d/swupdate.openvpn.net.list > /dev/null
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echo -n "::: Adding OpenVPN repo for $PLAT $OSCN ..."
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$SUDO apt-get -qq update & spinner $!
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echo " done!"
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;;
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esac
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;;
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esac
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}
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update_package_cache() {
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#Running apt-get update/upgrade with minimal output can cause some issues with
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#requiring user input
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#Check to see if apt-get update has already been run today
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#it needs to have been run at least once on new installs!
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timestamp=$(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 -n "::: ${PKG_MANAGER} update has not been run today. Running now..."
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$SUDO ${UPDATE_PKG_CACHE} &> /dev/null
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echo " done!"
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fi
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}
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notify_package_updates_available() {
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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 ${updatesToInstall} updates available for your system!"
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echo "::: We recommend you update your OS after installing PiVPN! "
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echo ":::"
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fi
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}
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install_dependent_packages() {
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# Install packages passed in via argument array
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# No spinner - conflicts with set -e
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declare -a argArray1=("${!1}")
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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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# Add support for https repositories if there are any that use it otherwise the installation will silently fail
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if grep -q https /etc/apt/sources.list; then
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PIVPN_DEPS+=("apt-transport-https")
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fi
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#if command -v debconf-apt-progress &> /dev/null; then
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# $SUDO debconf-apt-progress -- ${PKG_INSTALL} "${argArray1[@]}"
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#else
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# for i in "${argArray1[@]}"; do
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# echo -n "::: Checking for $i..."
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# $SUDO package_check_install "${i}" &> /dev/null
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# echo " installed!"
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# done
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#fi
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# myNode - Install all dependent packages without GUI
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for i in "${argArray1[@]}"; do
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echo -n "::: Checking for $i..."
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$SUDO package_check_install "${i}" &> /dev/null
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echo " installed!"
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done
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}
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unattendedUpgrades() {
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# Enable unattended upgrades
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#UNATTUPG="unattended-upgrades"
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#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}
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#if (whiptail --backtitle "Security Updates" --title "Unattended Upgrades" --yesno "Do you want to enable unattended upgrades of security patches to this server?" ${r} ${c}) then
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# UNATTUPG="unattended-upgrades"
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#else
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# UNATTUPG=""
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#fi
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# myNode will manage upgrades since this would make some OS assumptions
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UNATTUPG=""
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}
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stopServices() {
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# Stop openvpn
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$SUDO echo ":::"
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$SUDO echo -n "::: Stopping OpenVPN service..."
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case ${PLAT} in
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Ubuntu|Debian|*vuan)
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$SUDO service openvpn stop || true
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;;
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*)
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$SUDO systemctl stop openvpn.service || true
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;;
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esac
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$SUDO echo " done."
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}
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getGitFiles() {
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# Setup git repos for base files
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echo ":::"
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echo "::: Checking for existing base files..."
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#if is_repo "${1}"; then
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# update_repo "${1}" "${2}"
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#else
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# make_repo "${1}" "${2}"
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#fi
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make_repo "${1}" "${2}"
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}
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is_repo() {
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# If the directory does not have a .git folder it is not a repo
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echo -n "::: Checking $1 is a repo..."
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cd "${1}" &> /dev/null || return 1
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$SUDO git status &> /dev/null && echo " OK!"; return 0 || echo " not found!"; return 1
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}
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make_repo() {
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# Remove the non-repos interface and clone the interface
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echo -n "::: Cloning $2 into $1..."
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$SUDO rm -rf "${1}"
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sync
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$SUDO git clone -q --depth 1 --no-single-branch "${2}" "${1}"
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$SUDO git checkout ${pivpnVersionHash}
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sync
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if [ -z "${TESTING+x}" ]; then
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:
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else
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$SUDO git -C "${1}" checkout test
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fi
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echo " done!"
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}
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update_repo() {
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if [[ "${reconfigure}" == true ]]; then
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echo "::: --reconfigure passed to install script. Not downloading/updating local repos"
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else
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# Pull the latest commits
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echo -n "::: Updating repo in $1..."
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$SUDO rm -rf "${1}"
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$SUDO git clone -q --depth 1 --no-single-branch "${2}" "${1}"
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cd "${1}" || exit 1
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if [ -z "${TESTING+x}" ]; then
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:
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else
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${SUDOE} git checkout test
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fi
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echo " done!"
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fi
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}
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setCustomProto() {
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# We'll use UDP
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pivpnProto="udp"
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PROTO="udp"
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$SUDO cp /tmp/pivpnPROTO /etc/pivpn/INSTALL_PROTO
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}
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setCustomPort() {
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# We'll use port 51194
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PORT=51194
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echo ${PORT} > /tmp/INSTALL_PORT
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$SUDO cp /tmp/INSTALL_PORT /etc/pivpn/INSTALL_PORT
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}
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setClientDNS() {
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OVPNDNS1="8.8.8.8"
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OVPNDNS2="8.8.4.4"
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$SUDO sed -i '0,/\(dhcp-option DNS \)/ s/\(dhcp-option DNS \).*/\1'${OVPNDNS1}'\"/' /etc/openvpn/server.conf
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$SUDO sed -i '0,/\(dhcp-option DNS \)/! s/\(dhcp-option DNS \).*/\1'${OVPNDNS2}'\"/' /etc/openvpn/server.conf
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}
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#This procedure allows a user to specify a custom search domain if they have one.
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setCustomDomain() {
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DomainSettingsCorrect=False
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#if (whiptail --backtitle "Custom Search Domain" --title "Custom Search Domain" --yesno "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
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#
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# until [[ $DomainSettingsCorrect = True ]]
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# do
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# if CUSTOMDomain=$(whiptail --inputbox "Enter Custom Domain\nFormat: mydomain.com" ${r} ${c} --title "Custom Domain" 3>&1 1>&2 2>&3); then
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# if valid_domain "$CUSTOMDomain"; then
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# if (whiptail --backtitle "Custom Search Domain" --title "Custom Search Domain" --yesno "Are these settings correct?\n Custom Search Domain: $CUSTOMDomain" ${r} ${c}); then
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# DomainSettingsCorrect=True
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#
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# $SUDO sed -i '0,/\(.*dhcp-option.*\)/s//\push "dhcp-option DOMAIN '${CUSTOMDomain}'" \n&/' /etc/openvpn/server.conf
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#
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# else
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# # If the settings are wrong, the loop continues
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# DomainSettingsCorrect=False
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# fi
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# else
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# whiptail --msgbox --backtitle "Invalid Domain" --title "Invalid Domain" "Domain is invalid. Please try again.\n\n DOMAIN: $CUSTOMDomain\n" ${r} ${c}
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# DomainSettingsCorrect=False
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# fi
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# else
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# echo "::: Cancel selected. Exiting..."
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# exit 1
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# fi
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# done
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#
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#else
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# echo sleep 0.1
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#fi
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sleep 1
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}
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confOpenVPN() {
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# Generate a random, alphanumeric identifier of 16 characters for this server so that we can use verify-x509-name later that is unique for this server installation. Source: Earthgecko (https://gist.github.com/earthgecko/3089509)
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#(trap - PIPE; cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 16 | head -n 1 > /tmp/pivpn_uuid)
|
|
dd bs=16 count=1 if=/dev/urandom | base64 | tr -dc 'a-zA-Z0-9' > /tmp/pivpn_uuid
|
|
NEW_UUID=$(cat /tmp/pivpn_uuid)
|
|
SERVER_NAME="server_${NEW_UUID}"
|
|
|
|
if [[ ${useUpdateVars} == false ]]; then
|
|
# Ask user for desired level of encryption
|
|
|
|
if [[ ${useUpdateVars} == false ]]; then
|
|
if [[ ${PLAT} == "Raspbian" ]] && [[ ${OSCN} != "stretch" ]]; then
|
|
APPLY_TWO_POINT_FOUR=false
|
|
else
|
|
#if (whiptail --backtitle "Setup OpenVPN" --title "Installation mode" --yesno "OpenVPN 2.4 brings support for stronger authentication and key exchange using Elliptic Curves, along with encrypted control channel.\n\nIf your clients do run OpenVPN 2.4 or later you can enable these features, otherwise choose 'No' for best compatibility.\n\nNOTE: Current mobile app, that is OpenVPN connect, is supported." ${r} ${c}); then
|
|
# APPLY_TWO_POINT_FOUR=true
|
|
# $SUDO touch /etc/pivpn/TWO_POINT_FOUR
|
|
#else
|
|
# APPLY_TWO_POINT_FOUR=false
|
|
#fi
|
|
APPLY_TWO_POINT_FOUR=false
|
|
fi
|
|
fi
|
|
|
|
if [[ ${runUnattended} == true ]] && [[ ${APPLY_TWO_POINT_FOUR} == true ]]; then
|
|
$SUDO touch /etc/pivpn/TWO_POINT_FOUR
|
|
fi
|
|
|
|
#if [[ ${APPLY_TWO_POINT_FOUR} == false ]]; then
|
|
#
|
|
# ENCRYPT=$(whiptail --backtitle "Setup OpenVPN" --title "RSA certificate size" --radiolist \
|
|
# "Choose the desired size of your certificate (press space to select):\n This 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 testing, you can use 1024 bits to speed things up, but do not use this for normal use! If you are paranoid about ... things... then grab a cup of joe and pick 4096 bits." ${r} ${c} 3 \
|
|
# "1024" "Use a 1024-bit certificate (testing only)" OFF \
|
|
# "2048" "Use a 2048-bit certificate (recommended level)" ON \
|
|
# "4096" "Use a 4096-bit certificate (paranoid level)" OFF 3>&1 1>&2 2>&3)
|
|
#else
|
|
# declare -A ECDSA_MAP=(["256"]="prime256v1" ["384"]="secp384r1" ["521"]="secp521r1")
|
|
# ENCRYPT=$(whiptail --backtitle "Setup OpenVPN" --title "ECDSA certificate size" --radiolist \
|
|
# "Choose the desired size of your certificate (press space to select):\n This is an 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} ${c} 3 \
|
|
# "256" "Use a 256-bit certificate (recommended level)" ON \
|
|
# "384" "Use a 384-bit certificate" OFF \
|
|
# "521" "Use a 521-bit certificate (paranoid level)" OFF 3>&1 1>&2 2>&3)
|
|
#fi
|
|
ENCRYPT="2048"
|
|
|
|
#exitstatus=$?
|
|
#if [ $exitstatus != 0 ]; then
|
|
# echo "::: Cancel selected. Exiting..."
|
|
# exit 1
|
|
#fi
|
|
fi
|
|
|
|
# If easy-rsa exists, remove it
|
|
if [[ -d /etc/openvpn/easy-rsa/ ]]; then
|
|
$SUDO rm -rf /etc/openvpn/easy-rsa/
|
|
fi
|
|
|
|
|
|
# Get easy-rsa
|
|
wget -q -O - "${easyrsaRel}" | $SUDO tar xz -C /etc/openvpn && $SUDO mv /etc/openvpn/EasyRSA-v${easyrsaVer} /etc/openvpn/easy-rsa
|
|
# fix ownership
|
|
$SUDO chown -R root:root /etc/openvpn/easy-rsa
|
|
$SUDO mkdir /etc/openvpn/easy-rsa/pki
|
|
|
|
cd /etc/openvpn/easy-rsa || exit
|
|
|
|
# Write out new vars file
|
|
set +e
|
|
IFS= read -d '' String <<"EOF"
|
|
if [ -z "$EASYRSA_CALLER" ]; then
|
|
echo "Nope." >&2
|
|
return 1
|
|
fi
|
|
set_var EASYRSA "/etc/openvpn/easy-rsa"
|
|
set_var EASYRSA_PKI "$EASYRSA/pki"
|
|
set_var EASYRSA_CRL_DAYS 3650
|
|
EOF
|
|
echo "${String}" | $SUDO tee vars >/dev/null
|
|
set -e
|
|
|
|
# Set certificate type
|
|
if [[ ${APPLY_TWO_POINT_FOUR} == false ]]; then
|
|
echo "set_var EASYRSA_ALGO rsa" | $SUDO tee -a vars
|
|
echo "set_var EASYRSA_KEY_SIZE ${ENCRYPT}" | $SUDO tee -a vars
|
|
else
|
|
echo "set_var EASYRSA_ALGO ec" | $SUDO tee -a vars
|
|
echo "set_var EASYRSA_CURVE ${ECDSA_MAP["${ENCRYPT}"]}" | $SUDO tee -a vars
|
|
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 [[ ${useUpdateVars} == false ]]; then
|
|
# if [[ ${APPLY_TWO_POINT_FOUR} == false ]]; then
|
|
# whiptail --msgbox --backtitle "Setup OpenVPN" --title "Server Information" "The server key, Diffie-Hellman parameters, and HMAC key will now be generated." ${r} ${c}
|
|
# fi
|
|
#fi
|
|
|
|
# Build the server
|
|
${SUDOE} ./easyrsa build-server-full ${SERVER_NAME} nopass
|
|
|
|
if [[ ${useUpdateVars} == false ]]; then
|
|
if [[ ${APPLY_TWO_POINT_FOUR} == false ]]; then
|
|
if ([ "$ENCRYPT" -ge "4096" ] && whiptail --backtitle "Setup OpenVPN" --title "Download Diffie-Hellman Parameters" --yesno --defaultno "Download Diffie-Hellman parameters from a public DH parameter generation service?\n\nGenerating DH parameters for a $ENCRYPT-bit key can take many hours on a Raspberry Pi. You can instead download DH parameters from \"2 Ton Digital\" that are generated at regular intervals as part of a public service. Downloaded DH parameters will be randomly selected from their database.\nMore information about this service can be found here: https://2ton.com.au/safeprimes/\n\nIf you're paranoid, choose 'No' and Diffie-Hellman parameters will be generated on your device." ${r} ${c}); then
|
|
DOWNLOAD_DH_PARAM=true
|
|
else
|
|
DOWNLOAD_DH_PARAM=false
|
|
fi
|
|
else
|
|
DOWNLOAD_DH_PARAM=false
|
|
fi
|
|
fi
|
|
|
|
if [[ ${APPLY_TWO_POINT_FOUR} == false ]]; then
|
|
if [ "$ENCRYPT" -ge "4096" ] && [[ ${DOWNLOAD_DH_PARAM} == true ]]; then
|
|
# Downloading parameters
|
|
${SUDOE} curl "https://2ton.com.au/getprimes/random/dhparam/${ENCRYPT}" -o "/etc/openvpn/easy-rsa/pki/dh${ENCRYPT}.pem"
|
|
else
|
|
# Generate Diffie-Hellman key exchange
|
|
${SUDOE} ./easyrsa gen-dh
|
|
${SUDOE} mv pki/dh.pem pki/dh${ENCRYPT}.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
|
|
${SUDOE} chown nobody:nogroup /etc/openvpn/crl.pem
|
|
|
|
# Write config file for server using the template.txt file
|
|
$SUDO cp /etc/.pivpn/server_config.txt /etc/openvpn/server.conf
|
|
|
|
if [[ ${APPLY_TWO_POINT_FOUR} == true ]]; 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 [[ ${APPLY_TWO_POINT_FOUR} == true ]]; then
|
|
#If they enabled 2.4 disable dh parameters since the key exchange will use the matching curve from the ECDSA certificate
|
|
$SUDO sed -i "s/\(dh \/etc\/openvpn\/easy-rsa\/pki\/dh\).*/dh none/" /etc/openvpn/server.conf
|
|
else
|
|
# Otherwise set the user encryption key size
|
|
$SUDO sed -i "s/\(dh \/etc\/openvpn\/easy-rsa\/pki\/dh\).*/\1${ENCRYPT}.pem/" /etc/openvpn/server.conf
|
|
fi
|
|
|
|
# if they modified port put value in server.conf
|
|
if [ $PORT != 1194 ]; then
|
|
$SUDO sed -i "s/1194/${PORT}/g" /etc/openvpn/server.conf
|
|
fi
|
|
|
|
# if they modified protocol put value in server.conf
|
|
if [ "$PROTO" != "udp" ]; then
|
|
$SUDO sed -i "s/proto udp/proto tcp/g" /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
|
|
}
|
|
|
|
confUnattendedUpgrades() {
|
|
# myNode Removed
|
|
echo "skipped confUnattendedUpgrades"
|
|
}
|
|
|
|
confNetwork() {
|
|
# Enable forwarding of internet traffic
|
|
$SUDO sed -i '/net.ipv4.ip_forward=1/s/^#//g' /etc/sysctl.conf
|
|
$SUDO sysctl -p
|
|
|
|
# if ufw enabled, configure that (running as root because sometimes the executable is not in the user's $PATH, on Debian for example)
|
|
if $SUDO bash -c 'hash ufw' 2>/dev/null; then
|
|
if LANG=en_US.UTF-8 $SUDO ufw status | grep -q inactive
|
|
then
|
|
noUFW=1
|
|
else
|
|
echo "::: Detected UFW is enabled."
|
|
echo "::: Adding UFW rules..."
|
|
$SUDO sed "/delete these required/i *nat\n:POSTROUTING ACCEPT [0:0]\n-I POSTROUTING -s 10.8.0.0/24 -o $IPv4dev -j MASQUERADE\nCOMMIT\n" -i /etc/ufw/before.rules
|
|
# Insert rules at the beginning of the chain (in case there are other rules that may drop the traffic)
|
|
$SUDO ufw insert 1 allow "$PORT"/"$PROTO" >/dev/null
|
|
# Don't forward everything, just the traffic originated from the VPN subnet
|
|
$SUDO ufw route insert 1 allow in on tun0 from 10.8.0.0/24 out on "$IPv4dev" to any >/dev/null
|
|
$SUDO ufw reload >/dev/null
|
|
echo "::: UFW configuration completed."
|
|
fi
|
|
else
|
|
noUFW=1
|
|
fi
|
|
# else configure iptables
|
|
if [[ $noUFW -eq 1 ]]; then
|
|
echo 1 > /tmp/noUFW
|
|
$SUDO iptables -t nat -I POSTROUTING -s 10.8.0.0/24 -o "$IPv4dev" -j MASQUERADE
|
|
case ${PLAT} in
|
|
Ubuntu|Debian|Devuan)
|
|
$SUDO iptables-save | $SUDO tee /etc/iptables/rules.v4 > /dev/null
|
|
;;
|
|
*)
|
|
$SUDO netfilter-persistent save
|
|
;;
|
|
esac
|
|
else
|
|
echo 0 > /tmp/noUFW
|
|
fi
|
|
|
|
$SUDO cp /tmp/noUFW /etc/pivpn/NO_UFW
|
|
}
|
|
|
|
confOVPN() {
|
|
if ! IPv4pub=$(dig +short myip.opendns.com @208.67.222.222) || ! valid_ip "$IPv4pub"; then
|
|
echo "dig failed, now trying to curl checkip.amazonaws.com"
|
|
if ! IPv4pub=$(curl -s https://checkip.amazonaws.com) || ! valid_ip "$IPv4pub"; then
|
|
echo "checkip.amazonaws.com failed, please check your internet connection/DNS"
|
|
exit 1
|
|
fi
|
|
fi
|
|
$SUDO cp /tmp/pivpnUSR /etc/pivpn/INSTALL_USER
|
|
$SUDO cp /tmp/DET_PLATFORM /etc/pivpn/DET_PLATFORM
|
|
|
|
$SUDO cp /etc/.pivpn/Default.txt /etc/openvpn/easy-rsa/pki/Default.txt
|
|
|
|
if [[ ${APPLY_TWO_POINT_FOUR} == true ]]; 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
|
|
|
|
if [[ ${useUpdateVars} == false ]]; then
|
|
#METH=$(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)
|
|
METH=$IPv4pub
|
|
|
|
exitstatus=$?
|
|
if [ $exitstatus != 0 ]; then
|
|
echo "::: Cancel selected. Exiting..."
|
|
exit 1
|
|
fi
|
|
|
|
if [ "$METH" == "$IPv4pub" ]; then
|
|
$SUDO sed -i 's/IPv4pub/'"$IPv4pub"'/' /etc/openvpn/easy-rsa/pki/Default.txt
|
|
else
|
|
until [[ $publicDNSCorrect = True ]]
|
|
do
|
|
PUBLICDNS=$(whiptail --title "PiVPN Setup" --inputbox "What is the public DNS name of this Server?" ${r} ${c} 3>&1 1>&2 2>&3)
|
|
exitstatus=$?
|
|
if [ $exitstatus != 0 ]; then
|
|
echo "::: Cancel selected. Exiting..."
|
|
exit 1
|
|
fi
|
|
if (whiptail --backtitle "Confirm DNS Name" --title "Confirm DNS Name" --yesno "Is this correct?\n\n Public DNS Name: $PUBLICDNS" ${r} ${c}) then
|
|
publicDNSCorrect=True
|
|
$SUDO sed -i 's/IPv4pub/'"$PUBLICDNS"'/' /etc/openvpn/easy-rsa/pki/Default.txt
|
|
else
|
|
publicDNSCorrect=False
|
|
fi
|
|
done
|
|
fi
|
|
else
|
|
$SUDO sed -i 's/IPv4pub/'"$PUBLICDNS"'/' /etc/openvpn/easy-rsa/pki/Default.txt
|
|
fi
|
|
|
|
# if they modified port put value in Default.txt for clients to use
|
|
if [ $PORT != 1194 ]; then
|
|
$SUDO sed -i -e "s/1194/${PORT}/g" /etc/openvpn/easy-rsa/pki/Default.txt
|
|
fi
|
|
|
|
# if they modified protocol put value in Default.txt for clients to use
|
|
if [ "$PROTO" != "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 [ ! -d "/home/$pivpnUser/ovpns" ]; then
|
|
$SUDO mkdir "/home/$pivpnUser/ovpns"
|
|
fi
|
|
$SUDO chmod 0777 -R "/home/$pivpnUser/ovpns"
|
|
}
|
|
|
|
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
|
|
Ubuntu|Debian|*vuan)
|
|
$SUDO service rsyslog restart || true
|
|
;;
|
|
*)
|
|
$SUDO systemctl restart rsyslog.service || true
|
|
;;
|
|
esac
|
|
}
|
|
|
|
finalExports() {
|
|
# Update variables in setupVars.conf file
|
|
if [ -e "${setupVars}" ]; then
|
|
$SUDO sed -i.update.bak '/pivpnUser/d;/UNATTUPG/d;/pivpnInterface/d;/IPv4dns/d;/IPv4addr/d;/IPv4gw/d;/pivpnProto/d;/PORT/d;/ENCRYPT/d;/DOWNLOAD_DH_PARAM/d;/PUBLICDNS/d;/OVPNDNS1/d;/OVPNDNS2/d;' "${setupVars}"
|
|
fi
|
|
{
|
|
echo "pivpnUser=${pivpnUser}"
|
|
echo "UNATTUPG=${UNATTUPG}"
|
|
echo "pivpnInterface=${pivpnInterface}"
|
|
echo "IPv4dns=${IPv4dns}"
|
|
echo "IPv4addr=${IPv4addr}"
|
|
echo "IPv4gw=${IPv4gw}"
|
|
echo "pivpnProto=${pivpnProto}"
|
|
echo "PORT=${PORT}"
|
|
echo "ENCRYPT=${ENCRYPT}"
|
|
echo "APPLY_TWO_POINT_FOUR=${APPLY_TWO_POINT_FOUR}"
|
|
echo "DOWNLOAD_DH_PARAM=${DOWNLOAD_DH_PARAM}"
|
|
echo "PUBLICDNS=${PUBLICDNS}"
|
|
echo "OVPNDNS1=${OVPNDNS1}"
|
|
echo "OVPNDNS2=${OVPNDNS2}"
|
|
} | $SUDO tee "${setupVars}" > /dev/null
|
|
}
|
|
|
|
|
|
# I suggest replacing some of these names.
|
|
|
|
#accountForRefactor() {
|
|
# # At some point in the future this list can be pruned, for now we'll need it to ensure updates don't break.
|
|
#
|
|
# # Refactoring of install script has changed the name of a couple of variables. Sort them out here.
|
|
# sed -i 's/pivpnUser/PIVPN_USER/g' ${setupVars}
|
|
# #sed -i 's/UNATTUPG/UNATTUPG/g' ${setupVars}
|
|
# sed -i 's/pivpnInterface/PIVPN_INTERFACE/g' ${setupVars}
|
|
# sed -i 's/IPv4dns/IPV4_DNS/g' ${setupVars}
|
|
# sed -i 's/IPv4addr/IPV4_ADDRESS/g' ${setupVars}
|
|
# sed -i 's/IPv4gw/IPV4_GATEWAY/g' ${setupVars}
|
|
# sed -i 's/pivpnProto/TRANSPORT_LAYER/g' ${setupVars}
|
|
# #sed -i 's/PORT/PORT/g' ${setupVars}
|
|
# #sed -i 's/ENCRYPT/ENCRYPT/g' ${setupVars}
|
|
# #sed -i 's/DOWNLOAD_DH_PARAM/DOWNLOAD_DH_PARAM/g' ${setupVars}
|
|
# sed -i 's/PUBLICDNS/PUBLIC_DNS/g' ${setupVars}
|
|
# sed -i 's/OVPNDNS1/OVPN_DNS_1/g' ${setupVars}
|
|
# sed -i 's/OVPNDNS2/OVPN_DNS_2/g' ${setupVars}
|
|
#}
|
|
|
|
installPiVPN() {
|
|
stopServices
|
|
$SUDO mkdir -p /etc/pivpn/
|
|
confUnattendedUpgrades
|
|
installScripts
|
|
setCustomProto
|
|
setCustomPort
|
|
confOpenVPN
|
|
confNetwork
|
|
confOVPN
|
|
setClientDNS
|
|
setCustomDomain
|
|
confLogging
|
|
finalExports
|
|
}
|
|
|
|
updatePiVPN() {
|
|
#accountForRefactor
|
|
stopServices
|
|
confUnattendedUpgrades
|
|
installScripts
|
|
|
|
# setCustomProto
|
|
# write out the PROTO
|
|
PROTO=$pivpnProto
|
|
$SUDO cp /tmp/pivpnPROTO /etc/pivpn/INSTALL_PROTO
|
|
|
|
#setCustomPort
|
|
# write out the port
|
|
$SUDO cp /tmp/INSTALL_PORT /etc/pivpn/INSTALL_PORT
|
|
|
|
confOpenVPN
|
|
confNetwork
|
|
confOVPN
|
|
|
|
# ?? Is this always OK? Also if you only select one DNS server ??
|
|
$SUDO sed -i '0,/\(dhcp-option DNS \)/ s/\(dhcp-option DNS \).*/\1'${OVPNDNS1}'\"/' /etc/openvpn/server.conf
|
|
$SUDO sed -i '0,/\(dhcp-option DNS \)/! s/\(dhcp-option DNS \).*/\1'${OVPNDNS2}'\"/' /etc/openvpn/server.conf
|
|
|
|
finalExports #re-export setupVars.conf to account for any new vars added in new versions
|
|
}
|
|
|
|
|
|
displayFinalMessage() {
|
|
# Final completion message to user
|
|
#whiptail --msgbox --backtitle "Make it so." --title "Installation Complete!" "Now run 'pivpn add' to create the ovpn 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
|
|
# $SUDO shutdown -r now
|
|
#fi
|
|
|
|
echo "Installation Complete!"
|
|
}
|
|
|
|
update_dialogs() {
|
|
# Always "update"
|
|
useUpdateVars=false
|
|
}
|
|
|
|
clone_or_update_repos() {
|
|
if [[ "${reconfigure}" == true ]]; then
|
|
echo "::: --reconfigure passed to install script. Not downloading/updating local repos"
|
|
else
|
|
# Get Git files
|
|
getGitFiles ${pivpnFilesDir} ${pivpnGitUrl} || \
|
|
{ echo "!!! Unable to clone ${pivpnGitUrl} into ${pivpnFilesDir}, unable to continue."; \
|
|
exit 1; \
|
|
}
|
|
fi
|
|
}
|
|
|
|
|
|
######## SCRIPT ############
|
|
|
|
main() {
|
|
|
|
######## FIRST CHECK ########
|
|
# Must be root to install
|
|
echo ":::"
|
|
if [[ $EUID -eq 0 ]];then
|
|
echo "::: You are root."
|
|
else
|
|
echo "::: sudo will be used for the install."
|
|
# Check if it is actually installed
|
|
# If it isn't, exit because the install cannot complete
|
|
if [[ $(dpkg-query -s sudo) ]];then
|
|
export SUDO="sudo"
|
|
export SUDOE="sudo -E"
|
|
else
|
|
echo "::: Please install sudo or run this as root."
|
|
exit 1
|
|
fi
|
|
fi
|
|
|
|
# Check for supported distribution
|
|
distro_check
|
|
|
|
# Check arguments for the undocumented flags
|
|
for var in "$@"; do
|
|
case "$var" in
|
|
"--reconfigure" ) reconfigure=true;;
|
|
"--i_do_not_follow_recommendations" ) skipSpaceCheck=false;;
|
|
"--unattended" ) runUnattended=true;;
|
|
esac
|
|
done
|
|
|
|
if [[ -f ${setupVars} ]]; then
|
|
if [[ "${runUnattended}" == true ]]; then
|
|
echo "::: --unattended passed to install script, no whiptail dialogs will be displayed"
|
|
useUpdateVars=true
|
|
else
|
|
update_dialogs
|
|
fi
|
|
fi
|
|
|
|
# Start the installer
|
|
# Verify there is enough disk space for the install
|
|
if [[ "${skipSpaceCheck}" == true ]]; then
|
|
echo "::: --i_do_not_follow_recommendations passed to script, skipping free disk space verification!"
|
|
else
|
|
verifyFreeDiskSpace
|
|
fi
|
|
|
|
# Install the packages (we do this first because we need whiptail)
|
|
addSoftwareRepo
|
|
|
|
update_package_cache
|
|
|
|
# Notify user of package availability
|
|
notify_package_updates_available
|
|
|
|
# Install packages used by this installation script
|
|
install_dependent_packages PIVPN_DEPS[@]
|
|
|
|
if [[ ${useUpdateVars} == false ]]; then
|
|
# Display welcome dialogs
|
|
welcomeDialogs
|
|
|
|
# Find interfaces and let the user choose one
|
|
chooseInterface
|
|
|
|
# Only try to set static on Raspbian, otherwise let user do it
|
|
if [[ $PLAT != "Raspbian" ]]; then
|
|
avoidStaticIPv4Ubuntu
|
|
else
|
|
setStaticIPv4
|
|
fi
|
|
|
|
# Choose the user for the ovpns
|
|
chooseUser
|
|
|
|
# Ask if unattended-upgrades will be enabled
|
|
unattendedUpgrades
|
|
|
|
# Clone/Update the repos
|
|
clone_or_update_repos
|
|
|
|
# Install
|
|
if installPiVPN; then
|
|
echo "::: Install Complete..."
|
|
else
|
|
exit 1
|
|
fi
|
|
else
|
|
# Source ${setupVars} for use in the rest of the functions.
|
|
source ${setupVars}
|
|
|
|
echo "::: Using IP address: $IPv4addr"
|
|
echo "${IPv4addr%/*}" > /tmp/pivpnIP
|
|
echo "::: Using interface: $pivpnInterface"
|
|
echo "${pivpnInterface}" > /tmp/pivpnINT
|
|
echo "::: Using User: $pivpnUser"
|
|
echo "${pivpnUser}" > /tmp/pivpnUSR
|
|
echo "::: Using protocol: $pivpnProto"
|
|
echo "${pivpnProto}" > /tmp/pivpnPROTO
|
|
echo "::: Using port: $PORT"
|
|
echo ${PORT} > /tmp/INSTALL_PORT
|
|
echo ":::"
|
|
|
|
# Only try to set static on Raspbian
|
|
case ${PLAT} in
|
|
Rasp*)
|
|
setStaticIPv4 # This might be a problem if a user tries to modify the ip in the config file and then runs an update because of the way we check for previous configuration in /etc/dhcpcd.conf
|
|
;;
|
|
*)
|
|
echo "::: IP Information"
|
|
echo "::: Since we think you are not using Raspbian, we will not configure a static IP for you."
|
|
echo "::: If you are in Amazon then you can not configure a static IP anyway."
|
|
echo "::: Just ensure before this installer started you had set an elastic IP on your instance."
|
|
;;
|
|
esac
|
|
|
|
# Clone/Update the repos
|
|
clone_or_update_repos
|
|
|
|
|
|
updatePiVPN
|
|
fi
|
|
|
|
echo "::: Restarting services..."
|
|
# Start services
|
|
case ${PLAT} in
|
|
Ubuntu|Debian|*vuan)
|
|
$SUDO service openvpn start
|
|
;;
|
|
*)
|
|
$SUDO systemctl enable openvpn.service
|
|
$SUDO systemctl start openvpn.service
|
|
;;
|
|
esac
|
|
|
|
# Ensure that cached writes reach persistent storage
|
|
echo "::: Flushing writes to disk..."
|
|
sync
|
|
|
|
echo "::: done."
|
|
|
|
if [[ "${useUpdateVars}" == false ]]; then
|
|
displayFinalMessage
|
|
fi
|
|
|
|
echo ":::"
|
|
if [[ "${useUpdateVars}" == false ]]; then
|
|
echo "::: Installation Complete!"
|
|
echo "::: Now run 'pivpn add' to create an ovpn profile for each of your devices."
|
|
echo "::: Run 'pivpn help' to see what else you can do!"
|
|
echo "::: It is strongly recommended you reboot after installation."
|
|
else
|
|
echo "::: Update complete!"
|
|
fi
|
|
|
|
echo ":::"
|
|
}
|
|
|
|
if [[ "${PIVPN_TEST}" != true ]] ; then
|
|
main "$@"
|
|
fi |