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https://github.com/hwdsl2/setup-ipsec-vpn.git
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Add update script
- Add a new wrapper script for updating Libreswan on all supported OS. The previous vpnupgrade.sh has been moved to vpnupgrade_ubuntu.sh.
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hwdsl2
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166
extras/vpnupgrade.sh
Executable file
166
extras/vpnupgrade.sh
Executable file
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#!/bin/sh
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#
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# Script to update Libreswan on Ubuntu, Debian, CentOS/RHEL, Rocky Linux,
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# AlmaLinux and Amazon Linux 2
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#
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# The latest version of this script is available at:
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# https://github.com/hwdsl2/setup-ipsec-vpn
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#
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# Copyright (C) 2021 Lin Song <linsongui@gmail.com>
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#
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# This work is licensed under the Creative Commons Attribution-ShareAlike 3.0
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# Unported License: http://creativecommons.org/licenses/by-sa/3.0/
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#
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# Attribution required: please include my name in any derivative and let me
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# know how you have improved it!
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# Specify which Libreswan version to install. See: https://libreswan.org
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SWAN_VER=4.4
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### DO NOT edit below this line ###
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export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
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exiterr() { echo "Error: $1" >&2; exit 1; }
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check_root() {
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if [ "$(id -u)" != 0 ]; then
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exiterr "Script must be run as root. Try 'sudo sh $0'"
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fi
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}
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check_vz() {
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if [ -f /proc/user_beancounters ]; then
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exiterr "OpenVZ VPS is not supported."
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fi
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}
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check_os() {
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os_type=centos
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rh_file="/etc/redhat-release"
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if grep -qs "Red Hat" "$rh_file"; then
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os_type=rhel
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fi
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if grep -qs "release 7" "$rh_file"; then
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os_ver=7
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elif grep -qs "release 8" "$rh_file"; then
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os_ver=8
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grep -qi stream "$rh_file" && os_ver=8s
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grep -qi rocky "$rh_file" && os_type=rocky
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grep -qi alma "$rh_file" && os_type=alma
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elif grep -qs "Amazon Linux release 2" /etc/system-release; then
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os_type=amzn
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os_ver=2
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else
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os_type=$(lsb_release -si 2>/dev/null)
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[ -z "$os_type" ] && [ -f /etc/os-release ] && os_type=$(. /etc/os-release && printf '%s' "$ID")
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case $os_type in
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[Uu]buntu)
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os_type=ubuntu
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;;
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[Dd]ebian)
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os_type=debian
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;;
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[Rr]aspbian)
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os_type=raspbian
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;;
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*)
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exiterr "This script only supports Ubuntu, Debian, CentOS/RHEL 7/8 and Amazon Linux 2."
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;;
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esac
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os_ver=$(sed 's/\..*//' /etc/debian_version | tr -dc 'A-Za-z0-9')
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if [ "$os_ver" = "8" ] || [ "$os_ver" = "jessiesid" ]; then
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exiterr "Debian 8 or Ubuntu < 16.04 is not supported."
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fi
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fi
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}
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check_swan_ver() {
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case $SWAN_VER in
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3.32|4.[1234])
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true
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;;
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*)
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cat 1>&2 <<EOF
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Error: Libreswan version '$SWAN_VER' is not supported.
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This script can install one of these versions:
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3.32, 4.1-4.3 or 4.4
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EOF
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exit 1
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;;
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esac
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ipsec_ver=$(/usr/local/sbin/ipsec --version 2>/dev/null)
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if ! printf '%s' "$ipsec_ver" | grep -q "Libreswan"; then
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cat 1>&2 <<'EOF'
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Error: This script requires Libreswan already installed.
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See: https://github.com/hwdsl2/setup-ipsec-vpn
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EOF
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exit 1
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fi
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}
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install_wget() {
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if ! command -v wget >/dev/null 2>&1; then
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if [ "$os_type" = "ubuntu" ] || [ "$os_type" = "debian" ] || [ "$os_type" = "raspbian" ]; then
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export DEBIAN_FRONTEND=noninteractive
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(
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set -x
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apt-get -yqq update
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) || exiterr "'apt-get update' failed."
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(
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set -x
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apt-get -yqq install wget >/dev/null
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) || exiterr "'apt-get install wget' failed."
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else
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(
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set -x
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yum -y -q install wget >/dev/null
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) || exiterr "'yum install wget' failed."
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fi
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fi
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}
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get_setup_url() {
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base_url="https://github.com/hwdsl2/setup-ipsec-vpn/raw/master/extras"
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sh_file="vpnupgrade_ubuntu.sh"
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if [ "$os_type" = "centos" ] || [ "$os_type" = "rhel" ] || [ "$os_type" = "rocky" ] || [ "$os_type" = "alma" ]; then
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sh_file="vpnupgrade_centos.sh"
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elif [ "$os_type" = "amzn" ]; then
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sh_file="vpnupgrade_amzn.sh"
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fi
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setup_url="$base_url/$sh_file"
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}
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run_setup() {
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status=0
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TMPDIR=$(mktemp -d /tmp/vpnup.XXXXX 2>/dev/null)
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if [ -d "$TMPDIR" ]; then
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if ( set -x; wget -t 3 -T 30 -q -O "$TMPDIR/vpnup.sh" "$setup_url" \
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|| curl -fsL "$setup_url" -o "$TMPDIR/vpnup.sh" 2>/dev/null ); then
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VPN_UPDATE_SWAN_VER="$SWAN_VER" /bin/sh "$TMPDIR/vpnup.sh" || status=1
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else
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status=1
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echo "Error: Could not download update script." >&2
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fi
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/bin/rm -f "$TMPDIR/vpnup.sh"
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/bin/rmdir "$TMPDIR"
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else
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exiterr "Could not create temporary directory."
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fi
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}
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vpnupgrade() {
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check_root
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check_vz
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check_os
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check_swan_ver
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install_wget
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get_setup_url
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run_setup
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}
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## Defer setup until we have the complete script
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vpnupgrade "$@"
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exit "$status"
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