1721 lines
44 KiB
Bash
Executable File
1721 lines
44 KiB
Bash
Executable File
#!/usr/bin/env bash
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script_dir="$(dirname $(realpath $0))"
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conf_file=${script_dir}/conf/install_openvpn.conf
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_needed_debian_packages="openvpn easy-rsa"
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# - Used if system does NOT support systemd
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# -
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init_script="/etc/init.d/openvpn"
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# - Used if systemd is supported
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# -
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service_name=openvpn
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openvpn_binary="/usr/sbin/openvpn"
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log_file="$(mktemp)"
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_date="$(date +%Y-%m-%d-%H%M)"
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#---------------------------------------
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#-----------------------------
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# Base Function(s)
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#-----------------------------
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#---------------------------------------
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clean_up() {
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# Perform program exit housekeeping
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rm $log_file
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exit $1
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}
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trim() {
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local var="$*"
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var="${var#"${var%%[![:space:]]*}"}" # remove leading whitespace characters
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var="${var%"${var##*[![:space:]]}"}" # remove trailing whitespace characters
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echo -n "$var"
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}
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# - Test of valid IPv4 Address
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# -
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# - Returns 0 if valid, > 0 otherwise
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# -
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is_valid_ipv4() {
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local -a octets=( ${1//\./ } )
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local RETURNVALUE=0
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# return an error if the IP doesn't have exactly 4 octets
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[[ ${#octets[@]} -ne 4 ]] && return 1
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for octet in ${octets[@]}
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do
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if [[ ${octet} =~ ^[0-9]{1,3}$ ]]
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then # shift number by 8 bits, anything larger than 255 will be > 0
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((RETURNVALUE += octet>>8 ))
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else # octet wasn't numeric, return error
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return 1
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fi
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done
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return ${RETURNVALUE}
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}
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# - Convert CIDR to netmask
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# -
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cidr2mask() {
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local i mask=""
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local full_octets=$(($1/8))
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local partial_octet=$(($1%8))
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for ((i=0;i<4;i+=1)); do
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if [ $i -lt $full_octets ]; then
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mask+=255
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elif [ $i -eq $full_octets ]; then
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mask+=$((256 - 2**(8-$partial_octet)))
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else
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mask+=0
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fi
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test $i -lt 3 && mask+=.
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done
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echo $mask
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}
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echononl(){
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echo X\\c > /tmp/shprompt$$
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if [ `wc -c /tmp/shprompt$$ | awk '{print $1}'` -eq 1 ]; then
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echo -e -n "$*\\c" 1>&2
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else
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echo -e -n "$*" 1>&2
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fi
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rm /tmp/shprompt$$
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}
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fatal(){
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echo ""
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echo -e "\t[ \033[31m\033[1mFatal\033[m ]: $*"
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echo ""
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echo -e "\t\033[37m\033[1mInstalllation will be interrupted\033[m\033[m"
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echo ""
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clean_up 1
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exit 1
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}
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error(){
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echo ""
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echo -e "\t[ \033[31m\033[1mError\033[m ]: $*"
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echo ""
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}
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warn (){
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echo ""
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echo -e "\t[ \033[33m\033[1mWarning\033[m ]: $*"
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echo ""
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}
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info (){
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echo ""
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echo -e "\t[ \033[32m\033[1mInfo\033[m ]: $*"
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echo ""
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}
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echo_done() {
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echo -e "\033[80G[ \033[32mdone\033[m ]"
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}
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echo_ok() {
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echo -e "\033[80G[ \033[32mok\033[m ]"
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}
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echo_warning() {
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echo -e "\033[80G[ \033[33m\033[1mwarn\033[m ]"
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}
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echo_failed(){
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echo -e "\033[80G[ \033[1;31mfailed\033[m ]"
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}
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echo_skipped() {
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echo -e "\033[80G[ \033[37mskipped\033[m ]"
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}
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trap clean_up SIGHUP SIGINT SIGTERM
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#---------------------------------------
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#-----------------------------
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# Check some prerequisites
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#-----------------------------
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#---------------------------------------
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# - Is 'systemd' supported on this system
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# -
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systemd=$(which systemd)
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systemctl=$(which systemctl)
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systemd_supported=false
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if [[ -n "$systemd" ]] && [[ -n "$systemctl" ]] ; then
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systemd_supported=true
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else
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if [[ ! -x $init_script ]]; then
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fatal "$(basename $0): Missing OpenVPN Init-Script!"
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fi
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fi
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clear
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echo -e "\n\t\033[32mStart script for installation of OpenVPN on this Server..\033[m"
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#---------------------------------------
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#-----------------------------
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# Setting Defaults
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#-----------------------------
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#---------------------------------------
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DEFAULT_SERVER_PORT=1194
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DEFAULT_CA_EXPIRE=11688
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DEFAULT_KEY_EXPIRE=7305
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DEFAULT_KEY_SIZE=4096
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DEFAULT_KEY_COUNTRY="DE"
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DEFAULT_KEY_PROVINCE="Berlin"
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DEFAULT_KEY_CITY="Berlin"
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DEFAULT_KEY_EMAIL='support@oopen.de'
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DEFAULT_KEY_OU="Network Services"
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DEFAULT_SERVER_CIPHER="AES-256-CBC"
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#---------------------------------------
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#-----------------------------
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# Load default values from install_openvpn.conf
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#
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# Overwrites the settings above
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#
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#-----------------------------
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#---------------------------------------
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echo ""
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echo ""
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echononl " Load Configuration File $(basename ${conf_file}).."
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if [[ ! -f "$conf_file" ]]; then
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echo_skipped
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else
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source "${conf_file}" > $log_file 2>&1
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if [[ $? -eq 0 ]]; then
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echo_ok
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else
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echo_failed
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fatal "$(cat $log_file)"
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fi
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fi
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echo ""
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echo ""
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echo -e "\033[32m--\033[m"
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echo "Common parameters"
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echo -e "\033[32m--\033[m"
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echo ""
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echo "Insert IP-Address/Hostname of OpenVPN Server"
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echo ""
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OPENVPN_SERVER=""
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if [[ -n "$DEFAULT_SERVER" ]] ; then
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echononl "Server Port [${DEFAULT_SERVER}]: "
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read OPENVPN_SERVER
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if [[ "X$OPENVPN_SERVER" = "X" ]]; then
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OPENVPN_SERVER="$DEFAULT_SERVER"
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fi
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else
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echononl "OpenVPN Server: "
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read OPENVPN_SERVER
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while [ "X$OPENVPN_SERVER" = "X" ] ; do
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echo -e "\n\t\033[33m\033[1mSetting 'OpenVPN Server' is required!\033[m\n"
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echononl "OpenVPN Server: "
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read OPENVPN_SERVER
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done
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fi
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echo ""
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SERVER_PORT=""
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echononl "Server Port [${DEFAULT_SERVER_PORT}]: "
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while [[ "X${SERVER_PORT}" = "X" ]]; do
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read SERVER_PORT
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if [[ "X$SERVER_PORT" = "X" ]]; then
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SERVER_PORT="$DEFAULT_SERVER_PORT"
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fi
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done
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if $(grep -q -E "SERVER_PORT=$SERVER_PORT" ${script_dir}/conf/server-*.conf 2> /dev/null) ; then
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warn "Port '$SERVER_PORT' is already in use by an other OpenVPN Service on this Server"
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fi
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echo ""
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echo "Insert Name of OpenVPN Service (i.e. so36, gw-ckubu, opferperspektive)"
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echo ""
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echo " Example: 'so36' or 'gw-ckubu' or 'opferperspektive' or.."
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echo ""
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OPENVPN_NAME=""
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echononl "OpenVPN Name: "
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read OPENVPN_NAME
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while [ "X$OPENVPN_NAME" = "X" ] ; do
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echo -e "\n\t\033[33m\033[1mSetting 'OpenVPN Name' is required!\033[m\n"
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echononl "OpenVPN Name: "
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read OPENVPN_NAME
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done
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DEFAULT_OPENVPN_BASE_DIR="/etc/openvpn/${OPENVPN_NAME}"
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[[ -n "$DEFAULT_KEY_ORG" ]] || DEFAULT_KEY_ORG="$OPENVPN_NAME"
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DEFAULT_KEY_NAME="$OPENVPN_NAME"
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DEFAULT_KEY_CN="$OPENVPN_NAME"
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DEFAULT_KEY_ALTNAMES="$OPENVPN_NAME"
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echo ""
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echo ""
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echo "Insert OpenVPN Base Directory for Service '$OPENVPN_NAME'"
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echo ""
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echo " Note: must be a subdirectory of '/etc/openvpn'"
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echo ""
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OPENVPN_BASE_DIR=""
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echononl "OpenVPN Base Directory [${DEFAULT_OPENVPN_BASE_DIR}]: "
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while [[ "X${OPENVPN_BASE_DIR}" = "X" ]]; do
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read OPENVPN_BASE_DIR
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if [[ "X$OPENVPN_BASE_DIR" = "X" ]]; then
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OPENVPN_BASE_DIR="$DEFAULT_OPENVPN_BASE_DIR"
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else
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if [[ ! "$(dirname ${OPENVPN_BASE_DIR})" = "/etc/openvpn" ]]; then
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echo -e "\n\t\033[33m\033[1mGiven entry is NOT a subdirectory of '/etc/openvpn'. Retry..\033[m\n"
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echononl "OpenVPN Base Directory [${DEFAULT_OPENVPN_BASE_DIR}]: "
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OPENVPN_BASE_DIR=""
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fi
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fi
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done
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EASY_RSA_DIR="${OPENVPN_BASE_DIR}/easy-rsa"
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OPENVPN_CCD_DIR="${OPENVPN_BASE_DIR}/ccd/server-${OPENVPN_NAME}"
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echo ""
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echo -e "\033[32m--\033[m"
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echo "KEY generation parameters"
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echo -e "\033[32m--\033[m"
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echo ""
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echo "Insert expiration time for ROOT CA"
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echo ""
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echo " Example: (3*365+366)*8 = 11688 = 32 Jahre"
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echo " expiration time: 11688"
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echo ""
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CA_EXPIRE=""
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echononl "Expiration time ROOT CA [${DEFAULT_CA_EXPIRE}]: "
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while [[ "X${CA_EXPIRE}" = "X" ]]; do
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read CA_EXPIRE
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if [[ "X$CA_EXPIRE" = "X" ]]; then
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CA_EXPIRE="$DEFAULT_CA_EXPIRE"
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fi
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done
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echo ""
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echo ""
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echo "Insert expiration time for user/server certificates"
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echo ""
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echo " Example: (3*365+366)*5 = 7305 = 20 Jahre"
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echo " expiration time: 7305"
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echo ""
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KEY_EXPIRE=""
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echononl "Expiration time certificates [${DEFAULT_KEY_EXPIRE}]: "
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while [[ "X${KEY_EXPIRE}" = "X" ]]; do
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read KEY_EXPIRE
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if [[ "X$KEY_EXPIRE" = "X" ]]; then
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KEY_EXPIRE="$DEFAULT_KEY_EXPIRE"
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fi
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done
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echo ""
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echo ""
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echo "Insert key size for user/server keys"
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echo ""
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KEY_SIZE=""
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echononl "KEY_SIZE [${DEFAULT_KEY_SIZE}]: "
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while [[ "X${KEY_SIZE}" = "X" ]]; do
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read KEY_SIZE
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if [[ "X$KEY_SIZE" = "X" ]]; then
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KEY_SIZE="$DEFAULT_KEY_SIZE"
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fi
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done
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echo ""
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echo ""
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echo "Insert key meta-data"
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echo ""
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KEY_COUNTRY=""
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echononl "KEY_COUNTRY [${DEFAULT_KEY_COUNTRY}]: "
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read KEY_COUNTRY
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if [[ "X$KEY_COUNTRY" = "X" ]]; then
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KEY_COUNTRY="$DEFAULT_KEY_COUNTRY"
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fi
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KEY_PROVINCE=""
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echo ""
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echononl "KEY_PROVINCE [${DEFAULT_KEY_PROVINCE}]: "
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read KEY_PROVINCE
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if [[ "X$KEY_PROVINCE" = "X" ]]; then
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KEY_PROVINCE="$DEFAULT_KEY_PROVINCE"
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fi
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KEY_CITY=""
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echo ""
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echononl "KEY_CITY [${DEFAULT_KEY_CITY}]: "
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read KEY_CITY
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if [[ "X$KEY_CITY" = "X" ]]; then
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KEY_CITY="$DEFAULT_KEY_CITY"
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fi
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KEY_ORG=""
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echo ""
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echononl "KEY_ORG [${DEFAULT_KEY_ORG}]: "
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read KEY_ORG
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if [[ "X$KEY_ORG" = "X" ]]; then
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KEY_ORG="$DEFAULT_KEY_ORG"
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fi
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KEY_EMAIL=""
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echo ""
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echononl "KEY_EMAIL [${DEFAULT_KEY_EMAIL}]: "
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read KEY_EMAIL
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if [[ "X$KEY_EMAIL" = "X" ]]; then
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KEY_EMAIL="$DEFAULT_KEY_EMAIL"
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fi
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EMAIL_PREFIX="$(echo $KEY_EMAIL | cut -d '@' -f1)"
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EMAIL_DOMAIN="$(echo $KEY_EMAIL | cut -d '@' -f2)"
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KEY_OU=""
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echo ""
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echononl "KEY_OU [${DEFAULT_KEY_OU}]: "
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read KEY_OU
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if [[ "X$KEY_OU" = "X" ]]; then
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KEY_OU="$DEFAULT_KEY_OU"
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fi
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KEY_NAME=
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echo ""
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echononl "KEY_NAME [${DEFAULT_KEY_NAME}]: "
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read KEY_NAME
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if [[ "X$KEY_NAME" = "X" ]]; then
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KEY_NAME="$DEFAULT_KEY_NAME"
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else
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DEFAULT_KEY_CN="$KEY_NAME"
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DEFAULT_KEY_ALTNAMES="$KEY_NAME"
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fi
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KEY_CN=""
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echo ""
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echononl "KEY_CN [${DEFAULT_KEY_CN}]: "
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read KEY_CN
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if [[ "X$KEY_CN" = "X" ]]; then
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KEY_CN="$DEFAULT_KEY_CN"
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else
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DEFAULT_KEY_ALTNAMES="$KEY_CN"
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fi
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KEY_ALTNAMES=""
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echo ""
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echononl "KEY_ALTNAMES [${DEFAULT_KEY_ALTNAMES}]: "
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read KEY_ALTNAMES
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if [[ "X$KEY_ALTNAMES" = "X" ]]; then
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KEY_ALTNAMES="$DEFAULT_KEY_ALTNAMES"
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fi
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echo ""
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echo -e "\033[32m--\033[m"
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echo "Parameters for Server Configurations"
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echo -e "\033[32m--\033[m"
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echo ""
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echo "Set OpenVPN Network used for the connection."
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echo ""
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OPENVPN_NETWORK=""
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echononl "OpenVPN Network: "
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read OPENVPN_NETWORK
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while [ "X$OPENVPN_NETWORK" = "X" ] ; do
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echo -e "\n\t\033[33m\033[1mSetting 'OpenVPN Server' is required!\033[m\n"
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echononl "OpenVPN Network: "
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read OPENVPN_NETWORK
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done
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OPENVPN_SERVER_IP="${OPENVPN_NETWORK%.*}.1"
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echo ""
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echo -e "\033[32m--\033[m"
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echo ""
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echo ""
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echo "Set server-side 'cryptographic cipher'."
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echo ""
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echo "Note: if setting this parameter at the server configuration, this parameter *must'"
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echo " also set this parameter at client configuration"
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echo ""
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echo -e "Type \"\033[33mNone\033[m\" if no default cipher should be set."
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echo ""
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SERVER_CIPHER=""
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echononl "Server cryptographic cipher [${DEFAULT_SERVER_CIPHER}]: "
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read SERVER_CIPHER
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if [[ "X$SERVER_CIPHER" = "X" ]]; then
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SERVER_CIPHER="$DEFAULT_SERVER_CIPHER"
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else
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_to_lower_server_cipher="$( trim ${SERVER_CIPHER,,})"
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if [[ "$_to_lower_server_cipher" = "none" ]]; then
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SERVER_CIPHER=""
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fi
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fi
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echo ""
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echo -e "\033[32m--\033[m"
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echo ""
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echo ""
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echo "Networks to push from OpenVPN server to the client"
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echo ""
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echo " - use CIDR notation"
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echo " - multiple networks are possible: use blank separated list of CIDR-networks"
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echo ""
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echo -e "Type \"\033[33mNone\033[m\" if no network should be pushed from OpenVPN server."
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echo ""
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REMOTE_NETWORKS=""
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declare -a REMOTE_NETWORK_ARR=()
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echononl "Networks to push from server: "
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while [[ "X$REMOTE_NETWORKS" = "X" ]] ; do
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read REMOTE_NETWORKS
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_to_lower_remote_networks="$(trim ${REMOTE_NETWORKS,,})"
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if [[ "X$_to_lower_remote_networks" = "none" ]]; then
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REMOTE_NETWORKS=""
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break
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fi
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if [[ "X$REMOTE_NETWORKS" = "X" ]] ; then
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echo -e "\n\t\033[33m\033[1mWrong Entry!\033[m\n"
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echononl "Networks to push from server: "
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continue
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fi
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|
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for _net in ${REMOTE_NETWORKS} ; do
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IFS='/' read -a _net_arr <<< "${_net}"
|
|
if ! is_valid_ipv4 ${_net_arr[0]} ; then
|
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REMOTE_NETWORKS=""
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REMOTE_NETWORK_ARR=()
|
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echo -e "\n\t\033[33m\033[1mNo valid network(s) given!\033[m\n"
|
|
echononl "Networks to push from server: "
|
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break
|
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fi
|
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REMOTE_NETWORK_ARR+=("$_net")
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done
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done
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echo ""
|
|
echo -e "\033[32m--\033[m"
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echo ""
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|
|
|
echo ""
|
|
echo "IP-Address of DNS server to push from OpenVPN server to the client."
|
|
echo ""
|
|
echo -e "Type \"\033[33mNone\033[m\" if no DNS Server should be pushed."
|
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echo ""
|
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DNS_SERVER=""
|
|
echononl "DNS server to push to clients: "
|
|
while [[ "X$DNS_SERVER" = "X" ]]; do
|
|
read DNS_SERVER
|
|
if [[ "X$DNS_SERVER" = "X" ]]; then
|
|
echo -e "\n\t\033[33m\033[1mWrong Entry!\033[m\n"
|
|
echononl "DNS server to pusch to clients"
|
|
continue
|
|
else
|
|
_to_lower_dns_server="$(trim ${DNS_SERVER,,})"
|
|
if [[ "$_to_lower_dns_server" = "none" ]]; then
|
|
DNS_SERVER=""
|
|
break;
|
|
fi
|
|
fi
|
|
done
|
|
|
|
echo ""
|
|
echo -e "\033[32m--\033[m"
|
|
echo ""
|
|
|
|
echo ""
|
|
echo "Default Domain to push from OpenVPN server to the client."
|
|
echo ""
|
|
echo -e "Type \"\033[33mNone\033[m\" if no default domain should be pushed."
|
|
echo ""
|
|
DEFAULT_DOMAIN=""
|
|
echononl "Default Domain to push to clients: "
|
|
while [[ "X$DEFAULT_DOMAIN" = "X" ]]; do
|
|
read DEFAULT_DOMAIN
|
|
if [[ "X$DEFAULT_DOMAIN" = "X" ]]; then
|
|
echo -e "\n\t\033[33m\033[1mWrong Entry!\033[m\n"
|
|
echononl "Default Domain to pusch to clients"
|
|
continue
|
|
else
|
|
_to_lower_default_domain="$(trim ${DEFAULT_DOMAIN,,})"
|
|
if [[ "$_to_lower_default_domain" = "none" ]]; then
|
|
DEFAULT_DOMAIN=""
|
|
break;
|
|
fi
|
|
fi
|
|
done
|
|
|
|
echo ""
|
|
echo -e "\033[32m--\033[m"
|
|
echo ""
|
|
|
|
echo ""
|
|
echo "Local networks to route through OpenVPN line"
|
|
echo ""
|
|
echo " - use CIDR notation"
|
|
echo " - multiple networks are possible: use blank separated list of CIDR-networks"
|
|
echo ""
|
|
echo -e "Type \"\033[33mNone\033[m\" if no network should be pushed from OpenVPN server."
|
|
echo ""
|
|
LOCAL_NETWORKS=""
|
|
declare -a LOCAL_NETWORK_ARR=()
|
|
echononl "Local networks to route through OpenVPN line: "
|
|
while [[ "X$LOCAL_NETWORKS" = "X" ]] ; do
|
|
read LOCAL_NETWORKS
|
|
_to_lower_local_networks="$(trim ${LOCAL_NETWORKS,,})"
|
|
if [[ "$_to_lower_local_networks" = "none" ]]; then
|
|
LOCAL_NETWORKS=""
|
|
break
|
|
fi
|
|
if [[ "X$LOCAL_NETWORKS" = "X" ]] ; then
|
|
echo -e "\n\t\033[33m\033[1mWrong Entry!\033[m\n"
|
|
echononl "Local networks to route through OpenVPN line: "
|
|
continue
|
|
fi
|
|
|
|
for _net in ${LOCAL_NETWORKS} ; do
|
|
IFS='/' read -a _net_arr <<< "${_net}"
|
|
if ! is_valid_ipv4 ${_net_arr[0]} ; then
|
|
LOCAL_NETWORKS=""
|
|
LOCAL_NETWORK_ARR=()
|
|
echo -e "\n\t\033[33m\033[1mNo valid network(s) given!\033[m\n"
|
|
echononl "Local networks to route through OpenVPN line: "
|
|
break
|
|
fi
|
|
LOCAL_NETWORK_ARR+=("$_net")
|
|
done
|
|
done
|
|
|
|
|
|
echo ""
|
|
echo ""
|
|
echo -e "\033[1;32mSettings for installation of \033[1;37mOpenVPN\033[m"
|
|
echo ""
|
|
echo -e "\tOpenVPN IP-Address/Hostname.........: $OPENVPN_SERVER"
|
|
echo -e "\tOpenVPN Server.Port.................: $SERVER_PORT"
|
|
echo ""
|
|
echo -e "\tOpenVPN Servive Name................: $OPENVPN_NAME"
|
|
echo -e "\tOpenVPN Base Directory..............: $OPENVPN_BASE_DIR"
|
|
echo -e "\tOpenVPN 'easy-rsa' Directory........: $EASY_RSA_DIR"
|
|
echo -e "\tOpenVPN 'ccd' Directory.............: $OPENVPN_CCD_DIR"
|
|
echo ""
|
|
echo -e "\tExpiration time ROOT CA.............: $CA_EXPIRE"
|
|
echo -e "\tExpiration time certificates........: $KEY_EXPIRE"
|
|
echo -e "\tKey size............................: $KEY_SIZE"
|
|
echo ""
|
|
echo -e "\tKEY_COUNTRY.........................: $KEY_COUNTRY"
|
|
echo -e "\tKEY_PROVINCE........................: $KEY_PROVINCE"
|
|
echo -e "\tKEY_CITY............................: $KEY_CITY"
|
|
echo -e "\tKEY_ORG.............................: $KEY_ORG"
|
|
echo -e "\tKEY_EMAIL...........................: $KEY_EMAIL"
|
|
echo -e "\tKEY_OU..............................: $KEY_OU"
|
|
echo ""
|
|
echo -e "\tKEY_NAME............................: $KEY_NAME"
|
|
echo -e "\tKEY_CN..............................: $KEY_CN"
|
|
echo ""
|
|
echo -e "\tKEY_ALTNAMES........................: $KEY_ALTNAMES"
|
|
echo ""
|
|
echo -e "\tOpenVPN Network.....................: $OPENVPN_NETWORK"
|
|
echo -e "\tOpenVPN Server IP-Address...........: $OPENVPN_SERVER_IP"
|
|
echo ""
|
|
if [[ -n "$SERVER_CIPHER" ]] ; then
|
|
echo -e "\tServer cipher setting...............: $SERVER_CIPHER"
|
|
else
|
|
echo -e "\tServer cipher setting...............: \033[33mNone\033[m"
|
|
fi
|
|
echo ""
|
|
if [[ ${#REMOTE_NETWORK_ARR[@]} -gt 0 ]]; then
|
|
echo -e "\tRemote networks to push to cliente..: ${REMOTE_NETWORK_ARR[@]}"
|
|
else
|
|
echo -e "\tRemote networks to push to cliente..: \033[33mNone\033[m"
|
|
fi
|
|
if [[ -n "$DNS_SERVER" ]]; then
|
|
echo -e "\tDNS Server (push from server).......: $DNS_SERVER"
|
|
else
|
|
echo -e "\tDNS Server (push from server).......: \033[33mNone\033[m"
|
|
fi
|
|
if [[ -n "$DEFAULT_DOMAIN" ]]; then
|
|
echo -e "\tDefault Domain (push from server)...: $DEFAULT_DOMAIN"
|
|
else
|
|
echo -e "\tDefault Domain (push from server)...: \033[33mNone\033[m"
|
|
fi
|
|
echo ""
|
|
if [[ ${#LOCAL_NETWORK_ARR[@]} -gt 0 ]]; then
|
|
echo -e "\tLocal networks to route through VPN.: ${LOCAL_NETWORK_ARR[@]}"
|
|
else
|
|
echo -e "\tLocal networks to route through VPN.: \033[33mNone\033[m"
|
|
fi
|
|
|
|
|
|
echo ""
|
|
info "Starting Installation of OpenVPN Service \033[37m\033[1m${OPENVPN_NAME}\033[m.."
|
|
echo -n "To continue type uppercase 'YES': "
|
|
read OK
|
|
echo ""
|
|
if [[ "$OK" != "YES" ]] ; then
|
|
fatal "Abort by user request - Answer as not 'YES'"
|
|
fi
|
|
|
|
|
|
|
|
#---------------------------------------
|
|
#-----------------------------
|
|
# Write Configuration for $OPENVPN_NAME
|
|
#-----------------------------
|
|
#---------------------------------------
|
|
|
|
|
|
_openvpn_name_conf_file="${script_dir}/conf/server-${OPENVPN_NAME}.conf"
|
|
|
|
echononl " Write Configuration for OpenVPN Service '$OPENVPN_NAME'"
|
|
cat << EOF > $_openvpn_name_conf_file 2> $log_file
|
|
## - Configuration/Initialization OpenVPN
|
|
## -
|
|
|
|
# ====================
|
|
# - Some Parameter Settings
|
|
# ====================
|
|
|
|
# ---
|
|
# - Common parameters
|
|
# ---
|
|
|
|
OPENVPN_SERVER="$OPENVPN_SERVER"
|
|
SERVER_PORT=$SERVER_PORT
|
|
|
|
OPENVPN_NAME="$OPENVPN_NAME"
|
|
|
|
OPENVPN_BASE_DIR="$OPENVPN_BASE_DIR"
|
|
|
|
# ---
|
|
# - Parameters OpenVPN Configuration / KEY Creation
|
|
# ---
|
|
|
|
# - Example: (3*365+366)*8 = 11688 = 32 Jahre
|
|
# - CA_EXPIRE=11688
|
|
# -
|
|
CA_EXPIRE=$CA_EXPIRE
|
|
|
|
# - Example: (3*365+366)*5 = 7305 = 20 Jahre
|
|
# - KEY_EXPIRE=7305
|
|
# -
|
|
KEY_EXPIRE=$KEY_EXPIRE
|
|
|
|
KEY_SIZE=$KEY_SIZE
|
|
|
|
KEY_COUNTRY="$KEY_COUNTRY"
|
|
KEY_PROVINCE="$KEY_PROVINCE"
|
|
KEY_CITY="$KEY_CITY"
|
|
KEY_ORG="$KEY_ORG"
|
|
KEY_EMAIL="${EMAIL_PREFIX}\\@${EMAIL_DOMAIN}"
|
|
KEY_OU="$KEY_OU"
|
|
|
|
KEY_NAME="$KEY_NAME"
|
|
KEY_CN="$KEY_CN"
|
|
|
|
KEY_ALTNAMES="$KEY_ALTNAMES"
|
|
|
|
|
|
# ---
|
|
# - Parameters for Server Configurations
|
|
# ---
|
|
|
|
OPENVPN_NETWORK="$OPENVPN_NETWORK"
|
|
|
|
SERVER_CIPHER="$SERVER_CIPHER"
|
|
|
|
REMOTE_NETWORKS="${REMOTE_NETWORK_ARR[@]}"
|
|
DNS_SERVER="$DNS_SERVER"
|
|
DEFAULT_DOMAIN="$DEFAULT_DOMAIN"
|
|
|
|
LOCAL_NETWORKS="${LOCAL_NETWORK_ARR[@]}"
|
|
EOF
|
|
if [[ $? -eq 0 ]] ; then
|
|
echo_ok
|
|
else
|
|
echo_failed
|
|
fatal "$(cat $log_file)"
|
|
fi
|
|
|
|
|
|
|
|
#---------------------------------------
|
|
#-----------------------------
|
|
# Start Installation
|
|
#-----------------------------
|
|
#---------------------------------------
|
|
|
|
check_string_ps=""
|
|
check_string_ps_plus=""
|
|
if [[ -f "$openvpn_binary" ]] ; then
|
|
check_string_ps="$openvpn_binary"
|
|
check_string_ps_plus="--daemon"
|
|
fi
|
|
|
|
|
|
if [[ -n "$check_string_ps" ]]; then
|
|
echononl " Stopping OpenVPN Daemon"
|
|
PID=$(ps -e f | grep -E "[[:digit:]]\ ${check_string_ps}" | grep "\ ${check_string_ps_plus}\ " | grep -v grep | awk '{print$2}')
|
|
if [[ "X${PID}" = "X" ]]; then
|
|
echo_skipped
|
|
else
|
|
if $systemd_supported ; then
|
|
$systemctl stop $service_name > "$log_file" 2>&1
|
|
if [[ $? -ne 0 ]]; then
|
|
echo_failed
|
|
error "$(cat $log_file)"
|
|
else
|
|
echo_ok
|
|
fi
|
|
else
|
|
$init_script stop > "$log_file" 2>&1
|
|
if [[ $? -ne 0 ]]; then
|
|
echo_failed
|
|
error "$(cat $log_file)"
|
|
else
|
|
echo_ok
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
|
|
|
|
# - Install needed debian packages
|
|
# -
|
|
echononl " Install needed debian packages.."
|
|
needed_debian_packages=""
|
|
for _pkg in $_needed_debian_packages ; do
|
|
if aptitude search "$_pkg" | grep " $_pkg " | grep -e "^i" > /dev/null 2>&1 ; then
|
|
continue
|
|
else
|
|
needed_debian_packages="$needed_debian_packages $_pkg"
|
|
fi
|
|
done
|
|
if [[ -n "$needed_debian_packages" ]]; then
|
|
DEBIAN_FRONTEND=noninteractive apt-get -y install $needed_debian_packages > /dev/null 2> "$log_file"
|
|
if [[ $? -eq 0 ]] ; then
|
|
echo_ok
|
|
else
|
|
echo_failed
|
|
fatal "$(cat $log_file)"
|
|
fi
|
|
else
|
|
echo_skipped
|
|
fi
|
|
|
|
# - Make the package included scripts available in directory
|
|
# - "/etc/openvpn/easy-rsa"
|
|
# -
|
|
echononl " Backup directory '${EASY_RSA_DIR}'.."
|
|
if [[ -d "$EASY_RSA_DIR" ]]; then
|
|
mv $EASY_RSA_DIR ${EASY_RSA_DIR}.$_date > "$log_file" 2>&1
|
|
if [[ $? -eq 0 ]] ; then
|
|
echo_ok
|
|
else
|
|
echo_failed
|
|
error "$(cat $log_file)"
|
|
fi
|
|
else
|
|
echo_skipped
|
|
fi
|
|
echononl " Create directory '${EASY_RSA_DIR}'.."
|
|
/usr/bin/make-cadir $EASY_RSA_DIR > "$log_file" 2>&1
|
|
if [[ $? -eq 0 ]] ; then
|
|
echo_ok
|
|
else
|
|
echo_failed
|
|
error "$(cat $log_file)"
|
|
fi
|
|
|
|
# - Create key directory
|
|
# -
|
|
echononl " Backup key directory '${OPENVPN_BASE_DIR}/keys'.."
|
|
if [[ -d "${OPENVPN_BASE_DIR}/keys" ]]; then
|
|
mv ${OPENVPN_BASE_DIR}/keys ${OPENVPN_BASE_DIR}/keys.$_date > "$log_file" 2>&1
|
|
if [[ $? -eq 0 ]] ; then
|
|
echo_ok
|
|
else
|
|
echo_failed
|
|
error "$(cat $log_file)"
|
|
fi
|
|
else
|
|
echo_skipped
|
|
fi
|
|
echononl " Create key directory '${OPENVPN_BASE_DIR}/keys'.."
|
|
mkdir ${OPENVPN_BASE_DIR}/keys > "$log_file" 2>&1
|
|
if [[ $? -eq 0 ]] ; then
|
|
echo_ok
|
|
else
|
|
echo_failed
|
|
error "$(cat $log_file)"
|
|
fi
|
|
echononl " Change permissions (700) in directory '${OPENVPN_BASE_DIR}/keys'.."
|
|
chmod 700 "${OPENVPN_BASE_DIR}/keys" > "$log_file" 2>&1
|
|
if [[ $? -eq 0 ]] ; then
|
|
echo_ok
|
|
else
|
|
echo_failed
|
|
error "$(cat $log_file)"
|
|
fi
|
|
|
|
# - Create Log Directory
|
|
# -
|
|
openvpn_log_dir="/var/log/openvpn"
|
|
echononl " Create log directoy '${openvpn_log_dir}'"
|
|
if [[ -d "${openvpn_log_dir}" ]] ; then
|
|
echo_skipped
|
|
else
|
|
mkdir /var/log/openvpn > "$log_file" 2>&1
|
|
if [[ $? -eq 0 ]] ; then
|
|
echo_ok
|
|
else
|
|
echo_failed
|
|
error "$(cat $log_file)"
|
|
fi
|
|
fi
|
|
|
|
|
|
# - Backup existing 'ccd' directory
|
|
# -
|
|
echononl " Backup directory '${OPENVPN_BASE_DIR}/ccd'.."
|
|
if [[ -d "${OPENVPN_BASE_DIR}/ccd" ]] ; then
|
|
mv "${OPENVPN_BASE_DIR}/ccd" "${OPENVPN_BASE_DIR}/ccd.${_date}" > "$log_file" 2>&1
|
|
if [[ $? -eq 0 ]] ; then
|
|
echo_ok
|
|
else
|
|
echo_failed
|
|
error "$(cat $log_file)"
|
|
fi
|
|
else
|
|
echo_skipped
|
|
fi
|
|
|
|
# - Create Directory 'ccd'
|
|
# -
|
|
echononl " Create log directoy '${OPENVPN_BASE_DIR}/ccd'"
|
|
if [[ -d "${OPENVPN_BASE_DIR}/ccd" ]] ; then
|
|
echo_skipped
|
|
else
|
|
mkdir "${OPENVPN_BASE_DIR}/ccd" > "$log_file" 2>&1
|
|
if [[ $? -eq 0 ]] ; then
|
|
echo_ok
|
|
else
|
|
echo_failed
|
|
error "$(cat $log_file)"
|
|
fi
|
|
fi
|
|
|
|
# - Backup file keys-created.txt
|
|
# -
|
|
echononl " Backup file '${OPENVPN_BASE_DIR}/keys-created.txt"
|
|
if [[ -f "${OPENVPN_BASE_DIR}/keys-created.txt" ]]; then
|
|
mv "${OPENVPN_BASE_DIR}/keys-created.txt" "${OPENVPN_BASE_DIR}/keys-created.txt.${_date}" > "$log_file" 2>&1
|
|
if [[ $? -eq 0 ]] ; then
|
|
echo_ok
|
|
else
|
|
echo_failed
|
|
error "$(cat $log_file)"
|
|
fi
|
|
else
|
|
echo_skipped
|
|
fi
|
|
|
|
|
|
# - Adjust /etc/default/openvpn
|
|
# -
|
|
# - AUTOSTART="all"
|
|
# -
|
|
_file="/etc/default/openvpn"
|
|
echononl " Adjust '/etc/default/openvpn'. Set AUTOSTART=\"all\""
|
|
if ! grep -i -q -E "^\s*AUTOSTART=\"all\"" ${_file} ; then
|
|
if grep -i -q -E "^\s*#\s*AUTOSTART=\"all\"" ${_file} ; then
|
|
perl -i -n -p -e "s/^(\s*#\s*AUTOSTART=\"all\".*)/##\1\nAUTOSTART=\"all\"/" ${_file} > "$log_file" 2>&1
|
|
if [[ $? -eq 0 ]] ; then
|
|
echo_ok
|
|
else
|
|
echo_failed
|
|
error "$(cat $log_file)"
|
|
fi
|
|
else
|
|
echo "" >> ${_file}
|
|
echo "AUTOSTART=\"all\"" >> ${_file}
|
|
if [[ $? -eq 0 ]] ; then
|
|
echo_ok
|
|
else
|
|
echo_failed
|
|
error "$(cat $log_file)"
|
|
fi
|
|
fi
|
|
else
|
|
echo_skipped
|
|
fi
|
|
|
|
# - Adjust /etc/openvpn/easy-rsa/vars
|
|
# -
|
|
# - add:
|
|
# - export BASE_DIR=$OPENVPN_BASE_DIR
|
|
# -
|
|
# - replace:
|
|
# - export EASY_RSA=\$BASE_DIR/easy_rsa
|
|
# - export KEY_DIR=\$BASE_DIR/keys
|
|
# -
|
|
# - export KEY_SIZE=$KEY_SIZE
|
|
# -
|
|
# - # root CA expires in 30 years (= 10950 days)
|
|
# - export CA_EXPIRE=$CA_EXPIRE
|
|
# -
|
|
# - # certificates expires in 20 years (=7300 days)
|
|
# - export KEY_EXPIRE=$KEY_EXPIRE
|
|
# -
|
|
# - export KEY_COUNTRY="$KEY_COUNTRY"
|
|
# - export KEY_PROVINCE="$KEY_PROVINCE"
|
|
# - export KEY_CITY="$KEY_CITY"
|
|
# - export KEY_ORG="$KEY_ORG"
|
|
# - export KEY_EMAIL="$KEY_EMAIL"
|
|
# - export KEY_OU="$KEY_OU"
|
|
# -
|
|
# - export KEY_NAME="$KEY_NAME"
|
|
# -
|
|
# - #export KEY_CN="$KEY_CN"
|
|
# -
|
|
_failed=false
|
|
echononl " Adjust '${EASY_RSA_DIR}/vars'.."
|
|
perl -i.$_date -n -p -e "s&^(\s*#*\s*export\s+EASY_RSA=.*)&##\1\nexport BASE_DIR=\"${OPENVPN_BASE_DIR}\"\nexport EASY_RSA=\"\\\$BASE_DIR/easy-rsa\"&" ${EASY_RSA_DIR}/vars > "$log_file"
|
|
2>&1
|
|
if [[ $? -ne 0 ]]; then
|
|
_failed=true
|
|
fi
|
|
perl -i -n -p -e "s&^(\s*#*\s*export\s+KEY_DIR=.*)&##\1\nexport KEY_DIR=\"\\\$BASE_DIR/keys\"&" ${EASY_RSA_DIR}/vars > "$log_file"
|
|
2>&1
|
|
if [[ $? -ne 0 ]]; then
|
|
_failed=true
|
|
fi
|
|
|
|
|
|
perl -i -n -p -e "s/^(\s*#*\s*export\s+KEY_SIZE=.*)/##\1\nexport KEY_SIZE=$KEY_SIZE/" ${EASY_RSA_DIR}/vars > "$log_file"
|
|
2>&1
|
|
if [[ $? -ne 0 ]]; then
|
|
_failed=true
|
|
fi
|
|
perl -i -n -p -e "s/^(\s*#*\s*export\s+CA_EXPIRE=.*)/##\1\nexport CA_EXPIRE=$CA_EXPIRE/" ${EASY_RSA_DIR}/vars > "$log_file"
|
|
2>&1
|
|
if [[ $? -ne 0 ]]; then
|
|
_failed=true
|
|
fi
|
|
perl -i -n -p -e "s/^(\s*#*\s*export\s+KEY_EXPIRE=.*)/##\1\nexport KEY_EXPIRE=$KEY_EXPIRE/" ${EASY_RSA_DIR}/vars > "$log_file"
|
|
2>&1
|
|
if [[ $? -ne 0 ]]; then
|
|
_failed=true
|
|
fi
|
|
|
|
perl -i -n -p -e "s/^(\s*#*\s*export\s+KEY_COUNTRY=.*)/##\1\nexport KEY_COUNTRY=\"${KEY_COUNTRY}\"/" ${EASY_RSA_DIR}/vars > "$log_file"
|
|
2>&1
|
|
if [[ $? -ne 0 ]]; then
|
|
_failed=true
|
|
fi
|
|
perl -i -n -p -e "s/^(\s*#*\s*export\s+KEY_PROVINCE=.*)/##\1\nexport KEY_PROVINCE=\"${KEY_PROVINCE}\"/" ${EASY_RSA_DIR}/vars > "$log_file"
|
|
2>&1
|
|
if [[ $? -ne 0 ]]; then
|
|
_failed=true
|
|
fi
|
|
perl -i -n -p -e "s/^(\s*#*\s*export\s+KEY_CITY=.*)/##\1\nexport KEY_CITY=\"${KEY_CITY}\"/" ${EASY_RSA_DIR}/vars > "$log_file"
|
|
2>&1
|
|
if [[ $? -ne 0 ]]; then
|
|
_failed=true
|
|
fi
|
|
perl -i -n -p -e "s/^(\s*#*\s*export\s+KEY_ORG=.*)/##\1\nexport KEY_ORG=\"${KEY_ORG}\"/" ${EASY_RSA_DIR}/vars > "$log_file"
|
|
2>&1
|
|
if [[ $? -ne 0 ]]; then
|
|
_failed=true
|
|
fi
|
|
perl -i -n -p -e "s/^(\s*#*\s*export\s+KEY_EMAIL=.*)/##\1\nexport KEY_EMAIL=\"${EMAIL_PREFIX}\@${EMAIL_DOMAIN}\"/" ${EASY_RSA_DIR}/vars > "$log_file"
|
|
2>&1
|
|
if [[ $? -ne 0 ]]; then
|
|
_failed=true
|
|
fi
|
|
perl -i -n -p -e "s/^(\s*#*\s*export\s+KEY_OU=.*)/##\1\nexport KEY_OU=\"${KEY_OU}\"/" ${EASY_RSA_DIR}/vars > "$log_file"
|
|
2>&1
|
|
if [[ $? -ne 0 ]]; then
|
|
_failed=true
|
|
fi
|
|
perl -i -n -p -e "s/^(\s*#*\s*export\s+KEY_NAME=.*)/##\1\nexport KEY_NAME=\"${KEY_NAME}\"/" ${EASY_RSA_DIR}/vars > "$log_file"
|
|
2>&1
|
|
if [[ $? -ne 0 ]]; then
|
|
_failed=true
|
|
fi
|
|
|
|
perl -i -n -p -e "s/^(\s*#*\s*export\s+KEY_CN=.*)/#\1\nexport KEY_CN=\"${KEY_CN}\"/" ${EASY_RSA_DIR}/vars > "$log_file" 2>&1
|
|
if [[ $? -ne 0 ]]; then
|
|
_failed=true
|
|
fi
|
|
|
|
echo -e "\nexport KEY_ALTNAMES=\"$KEY_ALTNAMES\"" >> ${EASY_RSA_DIR}/vars 2> "$log_file"
|
|
if [[ $? -ne 0 ]]; then
|
|
_failed=true
|
|
fi
|
|
|
|
if $_failed ; then
|
|
echo_failed
|
|
error "$(cat $log_file)"
|
|
else
|
|
echo_ok
|
|
fi
|
|
|
|
|
|
#---------------------------------------
|
|
#-----------------------------
|
|
# Initial Setup OpenVPN (Root ca / Server key /..)
|
|
#-----------------------------
|
|
#---------------------------------------
|
|
|
|
echo ""
|
|
|
|
# - source file vars
|
|
# -
|
|
echononl " Load configuration '${EASY_RSA_DIR}/vars'.."
|
|
source ${EASY_RSA_DIR}/vars > "$log_file" 2>&1
|
|
if [[ $? -eq 0 ]] ; then
|
|
echo_ok
|
|
else
|
|
echo_failed
|
|
error "$(cat $log_file)"
|
|
fi
|
|
|
|
if [[ ! -f "$KEY_CONFIG" ]] ; then
|
|
if [[ -f "$(basename $KEY_CONFIG)/openssl-1.0.0.cnf" ]]; then
|
|
echononl " Create Symlink '$(basename $KEY_CONFIG)'.."
|
|
ln -s "$(basename $KEY_CONFIG)/openssl-1.0.0.cnf" "$KEY_CONFIG"
|
|
if [[ $? -eq 0 ]] ; then
|
|
echo_ok
|
|
else
|
|
echo_failed
|
|
error "$(cat $log_file)"
|
|
fatal "No OpenSSL configuration file present!"
|
|
fi
|
|
fi
|
|
fi
|
|
|
|
_failed=false
|
|
echononl " Adjust '$KEY_CONFIG'.."
|
|
OPENSSL_CONFIG_FILE="$(realpath "$KEY_CONFIG")"
|
|
perl -i.ORIG -n -p -e "s/^(\s*default_days\s*=.*)/#\1\ndefault_days = $CA_EXPIRE/" $KEY_CONFIG > "$log_file" 2>&1
|
|
if [[ $? -ne 0 ]]; then
|
|
_failed=true
|
|
fi
|
|
perl -i -n -p -e "s/^(\s*default_crl_days\s*=.*)/#\1\ndefault_crl_days = $CA_EXPIRE/" $KEY_CONFIG > "$log_file" 2>&1
|
|
if [[ $? -ne 0 ]]; then
|
|
_failed=true
|
|
fi
|
|
|
|
if $_failed ; then
|
|
echo_failed
|
|
error "$(cat $log_file)"
|
|
else
|
|
echo_ok
|
|
fi
|
|
|
|
|
|
# ---
|
|
# - Create Keys and Certs
|
|
# ---
|
|
echo ""
|
|
echo -e "\033[32m--\033[m"
|
|
echo "Create Keys and Certs .."
|
|
echo -e "\033[32m--\033[m"
|
|
echo ""
|
|
|
|
# - Create file 'serial' with value '01' - the serial for the next
|
|
# - created certificate
|
|
# -
|
|
echononl " Create '${OPENVPN_BASE_DIR}/keys/serial'.."
|
|
echo "01" > "${OPENVPN_BASE_DIR}/keys/serial" 2> "$log_file"
|
|
if [[ $? -eq 0 ]] ; then
|
|
echo_ok
|
|
else
|
|
echo_failed
|
|
error "$(cat $log_file)"
|
|
fi
|
|
|
|
# - Create empty file index.txt at key-directory
|
|
# -
|
|
echononl " Create empty file '${OPENVPN_BASE_DIR}/keys/index.txt'.."
|
|
touch $OPENVPN_BASE_DIR/keys/index.txt
|
|
if [[ $? -eq 0 ]] ; then
|
|
echo_ok
|
|
else
|
|
echo_failed
|
|
error "$(cat $log_file)"
|
|
fi
|
|
|
|
# - Create Root CA
|
|
# -
|
|
echononl " Create Root CA.."
|
|
printf "\n\n\n\n\n\n\n\n" | ${EASY_RSA_DIR}/build-ca > "$log_file" 2>&1
|
|
if [[ $? -eq 0 ]] ; then
|
|
echo_ok
|
|
else
|
|
echo_failed
|
|
error "$(cat $log_file)"
|
|
fi
|
|
|
|
# - Build Diffie-Hellman parameters for the server side
|
|
# - of an SSL/TLS connection.
|
|
# .
|
|
echononl " Build Diffie-Hellman parameter (dh key).."
|
|
${EASY_RSA_DIR}/build-dh > "$log_file" 2>&1
|
|
if [[ $? -eq 0 ]] ; then
|
|
echo_ok
|
|
else
|
|
echo_failed
|
|
error "$(cat $log_file)"
|
|
fi
|
|
|
|
# - Build Sever Key
|
|
# -
|
|
#echononl " Create Sever Key"
|
|
echo ""
|
|
echo -e " \033[32mNow create the server key. Tis procedure works interactive.\033[m"
|
|
echo -e " Use \033[37m\033[1m${KEY_CN}-server\033[m as 'commonName'"
|
|
echo ""
|
|
echononl "Type <return> to continue: "
|
|
read ok
|
|
echo ""
|
|
|
|
${EASY_RSA_DIR}/build-key-server server
|
|
if [[ $? -eq 0 ]] ; then
|
|
info "Building server key was successfully."
|
|
else
|
|
error "Building server key failed!"
|
|
fi
|
|
|
|
echo ""
|
|
echononl "Type <return> to continue: "
|
|
read ok
|
|
echo ""
|
|
#printf "\n\n\n\n\n${KEY_CN}-server\n\n\n\ny\ny\n" | ${EASY_RSA_DIR}/build-key-server server
|
|
|
|
# - For extra security beyond that provided
|
|
# - by SSL/TLS, create an "HMAC firewall"
|
|
# - to help block DoS attacks and UDP port flooding.
|
|
# -
|
|
echononl " Create 'ta.key' for additional security"
|
|
openvpn --genkey --secret ${OPENVPN_BASE_DIR}/keys/ta.key > "$log_file" 2>&1
|
|
if [[ $? -eq 0 ]] ; then
|
|
echo_ok
|
|
else
|
|
echo_failed
|
|
error "$(cat $log_file)"
|
|
fi
|
|
|
|
# - Create empty CRL (Certificate Revokation List)
|
|
# -
|
|
echononl " Create CRL (Certificate Revokation List) '${OPENVPN_BASE_DIR}/crl.pem'.."
|
|
openssl ca -gencrl -out ${OPENVPN_BASE_DIR}/crl.pem -config $KEY_CONFIG > "$log_file" 2>&1
|
|
if [[ $? -eq 0 ]] ; then
|
|
echo_ok
|
|
else
|
|
echo_failed
|
|
error "$(cat $log_file)"
|
|
fi
|
|
|
|
echononl " Create symlink for '${OPENVPN_BASE_DIR}/keys/crl.pem'.."
|
|
ln -s ../crl.pem ${OPENVPN_BASE_DIR}/keys/crl.pem > "$log_file" 2>&1
|
|
if [[ $? -eq 0 ]] ; then
|
|
echo_ok
|
|
else
|
|
echo_failed
|
|
error "$(cat $log_file)"
|
|
fi
|
|
|
|
|
|
# ----
|
|
# - Create server configurations
|
|
# ----
|
|
|
|
echo ""
|
|
echo -e "\033[32m--\033[m"
|
|
echo "Server configurations .."
|
|
echo -e "\033[32m--\033[m"
|
|
echo ""
|
|
|
|
echononl " Backup Client configuration directory '$OPENVPN_CCD_DIR'"
|
|
if [[ -d "$OPENVPN_CCD_DIR" ]]; then
|
|
mv "$OPENVPN_CCD_DIR" "${OPENVPN_CCD_DIR}.$_date"
|
|
if [[ $? -eq 0 ]] ; then
|
|
echo_ok
|
|
else
|
|
echo_failed
|
|
error "$(cat $log_file)"
|
|
fi
|
|
else
|
|
echo_skipped
|
|
fi
|
|
|
|
|
|
echononl " Create Client configuration directory '$OPENVPN_CCD_DIR'"
|
|
mkdir "$OPENVPN_CCD_DIR" > "$log_file" 2>&1
|
|
if [[ $? -eq 0 ]] ; then
|
|
echo_ok
|
|
else
|
|
echo_failed
|
|
error "$(cat $log_file)"
|
|
fi
|
|
|
|
|
|
#---------------------------------------
|
|
#-----------------------------
|
|
# Write Server Configuration for $OPENVPN_NAME
|
|
#-----------------------------
|
|
#---------------------------------------
|
|
_server_conf_file="/etc/openvpn/server-${OPENVPN_NAME}.conf"
|
|
|
|
echononl " Backup file $_server_conf_file"
|
|
if [[ -f "$_server_conf_file" ]] ; then
|
|
mv "$_server_conf_file" "${_server_conf_file}.$_date" > "$log_file" 2>&1
|
|
if [[ $? -eq 0 ]] ; then
|
|
echo_ok
|
|
else
|
|
echo_failed
|
|
error "$(cat $log_file)"
|
|
fi
|
|
else
|
|
echo_skipped
|
|
fi
|
|
|
|
echononl " Create configuration '${_server_conf_file}"
|
|
cat <<EOF > ${_server_conf_file} 2> "$log_file"
|
|
#################################################
|
|
# Sample OpenVPN 2.0 config file for #
|
|
# multi-client server. #
|
|
# #
|
|
# This file is for the server side #
|
|
# of a many-clients <-> one-server #
|
|
# OpenVPN configuration. #
|
|
# #
|
|
# OpenVPN also supports #
|
|
# single-machine <-> single-machine #
|
|
# configurations (See the Examples page #
|
|
# on the web site for more info). #
|
|
# #
|
|
# This config should work on Windows #
|
|
# or Linux/BSD systems. Remember on #
|
|
# Windows to quote pathnames and use #
|
|
# double backslashes, e.g.: #
|
|
# "C:\\\\Program Files\\\\OpenVPN\\\\config\\\\foo.key" #
|
|
# #
|
|
# Comments are preceded with '#' or ';' #
|
|
#################################################
|
|
|
|
# Which local IP address should OpenVPN
|
|
# listen on? (optional)
|
|
;local a.b.c.d
|
|
|
|
# Which TCP/UDP port should OpenVPN listen on?
|
|
# If you want to run multiple OpenVPN instances
|
|
# on the same machine, use a different port
|
|
# number for each one. You will need to
|
|
# open up this port on your firewall.
|
|
port $SERVER_PORT
|
|
|
|
# TCP or UDP server?
|
|
;proto tcp
|
|
proto udp
|
|
|
|
topology subnet
|
|
EOF
|
|
|
|
if [[ ${#LOCAL_NETWORK_ARR[@]} -gt 0 ]]; then
|
|
for _local_network in ${LOCAL_NETWORK_ARR[@]} ; do
|
|
IFS='/' read -a _net_arr <<< "${_local_network}"
|
|
if [[ -n ${_net_arr[1]} ]]; then
|
|
_netmask=$(cidr2mask ${_net_arr[1]})
|
|
else
|
|
_netmask="255.255.255.0"
|
|
fi
|
|
cat <<EOF >> ${_server_conf_file} 2>> "$log_file"
|
|
route ${_net_arr[0]} $_netmask $OPENVPN_SERVER_IP
|
|
EOF
|
|
done
|
|
fi
|
|
|
|
cat <<EOF >> ${_server_conf_file} 2>> "$log_file"
|
|
|
|
# "dev tun" will create a routed IP tunnel,
|
|
# "dev tap" will create an ethernet tunnel.
|
|
# Use "dev tap" if you are ethernet bridging.
|
|
# If you want to control access policies
|
|
# over the VPN, you must create firewall
|
|
# rules for the the TUN/TAP interface.
|
|
# On non-Windows systems, you can give
|
|
# an explicit unit number, such as tun0.
|
|
# On Windows, use "dev-node" for this.
|
|
# On most systems, the VPN will not function
|
|
# unless you partially or fully disable
|
|
# the firewall for the TUN/TAP interface.
|
|
;dev tap
|
|
dev tun
|
|
|
|
# Enable TUN IPv6 module
|
|
;tun-ipv6
|
|
|
|
# Windows needs the TAP-Win32 adapter name
|
|
# from the Network Connections panel if you
|
|
# have more than one. On XP SP2 or higher,
|
|
# you may need to selectively disable the
|
|
# Windows firewall for the TAP adapter.
|
|
# Non-Windows systems usually don't need this.
|
|
;dev-node MyTap
|
|
|
|
# SSL/TLS root certificate (ca), certificate
|
|
# (cert), and private key (key). Each client
|
|
# and the server must have their own cert and
|
|
# key file. The server and all clients will
|
|
# use the same ca file.
|
|
#
|
|
# See the "easy-rsa" directory for a series
|
|
# of scripts for generating RSA certificates
|
|
# and private keys. Remember to use
|
|
# a unique Common Name for the server
|
|
# and each of the client certificates.
|
|
#
|
|
# Any X509 key management system can be used.
|
|
# OpenVPN can also use a PKCS #12 formatted key file
|
|
# (see "pkcs12" directive in man page).
|
|
ca ${OPENVPN_BASE_DIR}/keys/ca.crt
|
|
cert ${OPENVPN_BASE_DIR}/keys/server.crt
|
|
key ${OPENVPN_BASE_DIR}/keys/server.key # This file should be kept secret
|
|
|
|
# Diffie hellman parameters.
|
|
# Generate your own with:
|
|
# openssl dhparam -out dh1024.pem 1024
|
|
# Substitute 2048 for 1024 if you are using
|
|
# 2048 bit keys.
|
|
dh ${OPENVPN_BASE_DIR}/keys/dh${KEY_SIZE}.pem
|
|
|
|
# Configure server mode and supply a VPN subnet
|
|
# for OpenVPN to draw client addresses from.
|
|
# The server will take 10.8.0.1 for itself,
|
|
# the rest will be made available to clients.
|
|
# Each client will be able to reach the server
|
|
# on 10.8.0.1. Comment this line out if you are
|
|
# ethernet bridging. See the man page for more info.
|
|
;server 10.8.0.0 255.255.255.0
|
|
;server-ipv6 2a01:30:1fff:fd00::/64
|
|
server $OPENVPN_NETWORK 255.255.255.0
|
|
|
|
# Maintain a record of client <-> virtual IP address
|
|
# associations in this file. If OpenVPN goes down or
|
|
# is restarted, reconnecting clients can be assigned
|
|
# the same virtual IP address from the pool that was
|
|
# previously assigned.
|
|
ifconfig-pool-persist ${OPENVPN_BASE_DIR}/ipp.txt
|
|
|
|
# Configure server mode for ethernet bridging.
|
|
# You must first use your OS's bridging capability
|
|
# to bridge the TAP interface with the ethernet
|
|
# NIC interface. Then you must manually set the
|
|
# IP/netmask on the bridge interface, here we
|
|
# assume 10.8.0.4/255.255.255.0. Finally we
|
|
# must set aside an IP range in this subnet
|
|
# (start=10.8.0.50 end=10.8.0.100) to allocate
|
|
# to connecting clients. Leave this line commented
|
|
# out unless you are ethernet bridging.
|
|
;server-bridge 10.8.0.4 255.255.255.0 10.8.0.50 10.8.0.100
|
|
|
|
# Push routes to the client to allow it
|
|
# to reach other private subnets behind
|
|
# the server. Remember that these
|
|
# private subnets will also need
|
|
# to know to route the OpenVPN client
|
|
# address pool (10.8.0.0/255.255.255.0)
|
|
# back to the OpenVPN server.
|
|
;push "route 10.8.0.0 255.255.255.0"
|
|
EOF
|
|
if [[ ${#REMOTE_NETWORK_ARR[@]} -gt 0 ]]; then
|
|
for _remote_network in ${REMOTE_NETWORK_ARR[@]} ; do
|
|
IFS='/' read -a _net_arr <<< "${_remote_network}"
|
|
if [[ -n ${_net_arr[1]} ]]; then
|
|
_netmask=$(cidr2mask ${_net_arr[1]})
|
|
else
|
|
_netmask="255.255.255.0"
|
|
fi
|
|
cat <<EOF >> ${_server_conf_file} 2>> "$log_file"
|
|
push "route ${_net_arr[0]} $_netmask"
|
|
EOF
|
|
done
|
|
fi
|
|
|
|
cat <<EOF >> ${_server_conf_file} 2>> "$log_file"
|
|
|
|
# To assign specific IP addresses to specific
|
|
# clients or if a connecting client has a private
|
|
# subnet behind it that should also have VPN access,
|
|
# use the subdirectory "ccd" for client-specific
|
|
# configuration files (see man page for more info).
|
|
client-config-dir $OPENVPN_CCD_DIR
|
|
|
|
# ---
|
|
# EXAMPLE: Suppose the client
|
|
# having the certificate common name "Thelonious"
|
|
# also has a small subnet behind his connecting
|
|
# machine, such as 192.168.40.128/255.255.255.248.
|
|
# First, uncomment out these lines:
|
|
;client-config-dir /etc/openvpn/ccd
|
|
;route 192.168.40.128 255.255.255.248
|
|
|
|
# Then create a file ccd/Thelonious with this line:
|
|
# iroute 192.168.40.128 255.255.255.248
|
|
# This will allow Thelonious' private subnet to
|
|
# access the VPN. This example will only work
|
|
# if you are routing, not bridging, i.e. you are
|
|
# using "dev tun" and "server" directives.
|
|
# ---
|
|
|
|
# ---
|
|
# EXAMPLE: Suppose you want to give
|
|
# Thelonious a fixed VPN IP address of 10.9.0.1.
|
|
# First uncomment out these lines:
|
|
;client-config-dir ccd
|
|
;route 10.9.0.0 255.255.255.252
|
|
|
|
# Then add this line to ccd/Thelonious:
|
|
# ifconfig-push 10.9.0.1 10.9.0.2
|
|
# ---
|
|
|
|
# ---
|
|
# Suppose that you want to enable different
|
|
# firewall access policies for different groups
|
|
# of clients. There are two methods:
|
|
# (1) Run multiple OpenVPN daemons, one for each
|
|
# group, and firewall the TUN/TAP interface
|
|
# for each group/daemon appropriately.
|
|
# (2) (Advanced) Create a script to dynamically
|
|
# modify the firewall in response to access
|
|
# from different clients. See man
|
|
# page for more info on learn-address script.
|
|
;learn-address ./script
|
|
# ---
|
|
|
|
# If enabled, this directive will configure
|
|
# all clients to redirect their default
|
|
# network gateway through the VPN, causing
|
|
# all IP traffic such as web browsing and
|
|
# and DNS lookups to go through the VPN
|
|
# (The OpenVPN server machine may need to NAT
|
|
# the TUN/TAP interface to the internet in
|
|
# order for this to work properly).
|
|
# CAVEAT: May break client's network config if
|
|
# client's local DHCP server packets get routed
|
|
# through the tunnel. Solution: make sure
|
|
# client's local DHCP server is reachable via
|
|
# a more specific route than the default route
|
|
# of 0.0.0.0/0.0.0.0.
|
|
;push "redirect-gateway"
|
|
|
|
# Certain Windows-specific network settings
|
|
# can be pushed to clients, such as DNS
|
|
# or WINS server addresses. CAVEAT:
|
|
# http://openvpn.net/faq.html#dhcpcaveats
|
|
;push "dhcp-option WINS 10.8.0.1"
|
|
EOF
|
|
if [[ -n "$DNS_SERVER" ]]; then
|
|
cat <<EOF >> ${_server_conf_file} 2>> "$log_file"
|
|
push "dhcp-option DNS ${DNS_SERVER}"
|
|
EOF
|
|
fi
|
|
if [[ -n "$DEFAULT_DOMAIN" ]]; then
|
|
cat <<EOF >> ${_server_conf_file} 2>> "$log_file"
|
|
push "dhcp-option DOMAIN ${DEFAULT_DOMAIN}"
|
|
EOF
|
|
fi
|
|
|
|
cat <<EOF >> ${_server_conf_file} 2>> "$log_file"
|
|
|
|
# Uncomment this directive to allow different
|
|
# clients to be able to "see" each other.
|
|
# By default, clients will only see the server.
|
|
# To force clients to only see the server, you
|
|
# will also need to appropriately firewall the
|
|
# server's TUN/TAP interface.
|
|
client-to-client
|
|
|
|
# Uncomment this directive if multiple clients
|
|
# might connect with the same certificate/key
|
|
# files or common names. This is recommended
|
|
# only for testing purposes. For production use,
|
|
# each client should have its own certificate/key
|
|
# pair.
|
|
#
|
|
# IF YOU HAVE NOT GENERATED INDIVIDUAL
|
|
# CERTIFICATE/KEY PAIRS FOR EACH CLIENT,
|
|
# EACH HAVING ITS OWN UNIQUE "COMMON NAME",
|
|
# UNCOMMENT THIS LINE OUT.
|
|
;duplicate-cn
|
|
|
|
# The keepalive directive causes ping-like
|
|
# messages to be sent back and forth over
|
|
# the link so that each side knows when
|
|
# the other side has gone down.
|
|
# Ping every 10 seconds, assume that remote
|
|
# peer is down if no ping received during
|
|
# a 120 second time period.
|
|
keepalive 10 120
|
|
|
|
# For extra security beyond that provided
|
|
# by SSL/TLS, create an "HMAC firewall"
|
|
# to help block DoS attacks and UDP port flooding.
|
|
#
|
|
# Generate with:
|
|
# openvpn --genkey --secret ta.key
|
|
#
|
|
# The server and each client must have
|
|
# a copy of this key.
|
|
# The second parameter should be '0'
|
|
# on the server and '1' on the clients.
|
|
;tls-auth ta.key 0 # This file is secret
|
|
tls-auth ${OPENVPN_BASE_DIR}/keys/ta.key 0
|
|
|
|
# Select a cryptographic cipher.
|
|
# This config item must be copied to
|
|
# the client config file as well.
|
|
;cipher BF-CBC # Blowfish (default)
|
|
;cipher AES-128-CBC # AES
|
|
;cipher DES-EDE3-CBC # Triple-DES
|
|
EOF
|
|
|
|
if [[ -n "$SERVER_CIPHER" ]]; then
|
|
cat <<EOF >> ${_server_conf_file} 2>> "$log_file"
|
|
cipher AES-256-CBC
|
|
EOF
|
|
|
|
fi
|
|
|
|
cat <<EOF >> ${_server_conf_file} 2>> "$log_file"
|
|
|
|
# Enable compression on the VPN link.
|
|
# If you enable it here, you must also
|
|
# enable it in the client config file.
|
|
comp-lzo
|
|
|
|
# The maximum number of concurrently connected
|
|
# clients we want to allow.
|
|
;max-clients 100
|
|
|
|
# It's a good idea to reduce the OpenVPN
|
|
# daemon's privileges after initialization.
|
|
#
|
|
# You can uncomment this out on
|
|
# non-Windows systems.
|
|
user nobody
|
|
group nogroup
|
|
|
|
# The persist options will try to avoid
|
|
# accessing certain resources on restart
|
|
# that may no longer be accessible because
|
|
# of the privilege downgrade.
|
|
persist-key
|
|
persist-tun
|
|
persist-local-ip
|
|
persist-remote-ip
|
|
|
|
# Output a short status file showing
|
|
# current connections, truncated
|
|
# and rewritten every minute.
|
|
;status openvpn-status.log
|
|
status /var/log/openvpn/status-server-${OPENVPN_NAME}.log
|
|
|
|
# By default, log messages will go to the syslog (or
|
|
# on Windows, if running as a service, they will go to
|
|
# the "\Program Files\OpenVPN\log" directory).
|
|
# Use log or log-append to override this default.
|
|
# "log" will truncate the log file on OpenVPN startup,
|
|
# while "log-append" will append to it. Use one
|
|
# or the other (but not both).
|
|
;log-append openvpn.log
|
|
;log openvpn.log
|
|
log /var/log/openvpn/server-${OPENVPN_NAME}.log
|
|
|
|
# Set the appropriate level of log
|
|
# file verbosity.
|
|
#
|
|
# 0 is silent, except for fatal errors
|
|
# 4 is reasonable for general usage
|
|
# 5 and 6 can help to debug connection problems
|
|
# 9 is extremely verbose
|
|
verb 1
|
|
|
|
# Silence repeating messages. At most 20
|
|
# sequential messages of the same message
|
|
# category will be output to the log.
|
|
;mute 20
|
|
|
|
# CRL (certificate revocation list) verification
|
|
crl-verify ${OPENVPN_BASE_DIR}/crl.pem
|
|
EOF
|
|
if [[ $? -eq 0 ]] ; then
|
|
echo_ok
|
|
else
|
|
echo_failed
|
|
error "$(cat $log_file)"
|
|
fi
|
|
|
|
echo ""
|
|
|
|
|
|
# - Start OpenVPN Service
|
|
# -
|
|
echononl " Start OpenVPN Service"
|
|
if $systemd_supported ; then
|
|
$systemctl start $service_name > "$log_file" 2>&1
|
|
if [[ $? -ne 0 ]]; then
|
|
echo_failed
|
|
error "$(cat $log_file)"
|
|
else
|
|
echo_ok
|
|
fi
|
|
else
|
|
$init_script start > "$log_file" 2>&1
|
|
if [[ $? -ne 0 ]]; then
|
|
echo_failed
|
|
error "$(cat $log_file)"
|
|
else
|
|
echo_ok
|
|
fi
|
|
fi
|
|
|
|
|
|
# - See if OpenVPN Service is running/has started
|
|
#
|
|
check_string_ps="$openvpn_binary"
|
|
check_string_ps_plus="--daemon"
|
|
sleep 2
|
|
PID=$(ps -e f | grep -E "[[:digit:]]\ ${check_string_ps}" | grep "\ ${check_string_ps_plus}\ " | grep -v grep | awk '{print$2}')
|
|
if [[ "X${PID}" = "X" ]]; then
|
|
warn "\033[37m\033[1mOpenVPN Service is NOT running.\033[m\n Maybe you have to restart the machine in order to start openvpn daemon."
|
|
fi
|
|
|
|
|
|
echo ""
|
|
clean_up 0
|