Improve update scripts
- Refactor VPN update scripts into functions - Cleanup
This commit is contained in:
hwdsl2
parent
665349336d
commit
52216d8f59
@ -19,88 +19,71 @@ 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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[ -n "$VPN_UPDATE_SWAN_VER" ] && SWAN_VER="$VPN_UPDATE_SWAN_VER"
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exiterr() { echo "Error: $1" >&2; exit 1; }
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exiterr2() { exiterr "'yum install' failed."; }
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bigecho() { echo "## $1"; }
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vpnupgrade() {
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check_root() {
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if [ "$(id -u)" != 0 ]; then
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exiterr "Script must be run as root. Try 'sudo sh $0'"
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fi
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}
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[ -n "$VPN_UPDATE_SWAN_VER" ] && SWAN_VER="$VPN_UPDATE_SWAN_VER"
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check_os() {
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os_arch=$(uname -m | tr -dc 'A-Za-z0-9_-')
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if ! grep -qs "Amazon Linux release 2" /etc/system-release; then
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exiterr "This script only supports Amazon Linux 2."
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fi
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}
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os_arch=$(uname -m | tr -dc 'A-Za-z0-9_-')
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if ! grep -qs "Amazon Linux release 2" /etc/system-release; then
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exiterr "This script only supports Amazon Linux 2."
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fi
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if [ "$(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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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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check_libreswan() {
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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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exit 1
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;;
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esac
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ipsec_ver=$(/usr/local/sbin/ipsec --version 2>/dev/null)
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swan_ver_old=$(printf '%s' "$ipsec_ver" | sed -e 's/.*Libreswan U\?//' -e 's/\( (\|\/K\).*//')
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if ! printf '%s' "$ipsec_ver" | grep -q "Libreswan"; then
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ipsec_ver=$(/usr/local/sbin/ipsec --version 2>/dev/null)
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swan_ver_old=$(printf '%s' "$ipsec_ver" | sed -e 's/.*Libreswan U\?//' -e 's/\( (\|\/K\).*//')
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if ! printf '%s' "$ipsec_ver" | grep -q "Libreswan"; then
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cat 1>&2 <<'EOF'
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Error: This script requires Libreswan already installed.
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See: https://github.com/hwdsl2/setup-ipsec-vpn
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EOF
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exit 1
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fi
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exit 1
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fi
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swan_ver_cur=4.4
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swan_ver_url="https://dl.ls20.com/v1/amzn/2/swanverupg?arch=$os_arch&ver1=$swan_ver_old&ver2=$SWAN_VER"
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swan_ver_latest=$(wget -t 3 -T 15 -qO- "$swan_ver_url")
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if printf '%s' "$swan_ver_latest" | grep -Eq '^([3-9]|[1-9][0-9]{1,2})(\.([0-9]|[1-9][0-9]{1,2})){1,2}$' \
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&& [ "$swan_ver_cur" != "$swan_ver_latest" ] \
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&& printf '%s\n%s' "$swan_ver_cur" "$swan_ver_latest" | sort -C -V; then
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echo "Note: A newer version of Libreswan ($swan_ver_latest) is available."
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echo " To update to the new version, exit this script and run:"
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echo " wget https://git.io/vpnupgrade -O vpnup.sh && sudo sh vpnup.sh"
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echo
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printf "Do you want to continue anyway? [y/N] "
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read -r response
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case $response in
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[yY][eE][sS]|[yY])
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echo
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;;
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*)
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echo "Abort. No changes were made."
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exit 1
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;;
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esac
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fi
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if [ "$swan_ver_old" = "$SWAN_VER" ]; then
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cat <<EOF
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You already have Libreswan version $SWAN_VER installed!
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If you continue, the same version will be re-installed.
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if [ "$swan_ver_old" = "$SWAN_VER" ]; then
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echo "You already have Libreswan version $SWAN_VER installed! "
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echo "If you continue, the same version will be re-installed."
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echo
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printf "Do you want to continue anyway? [y/N] "
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read -r response
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case $response in
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[yY][eE][sS]|[yY])
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echo
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;;
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*)
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echo "Abort. No changes were made."
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exit 1
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;;
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esac
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fi
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EOF
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printf "Do you want to continue anyway? [y/N] "
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read -r response
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case $response in
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[yY][eE][sS]|[yY])
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echo
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;;
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*)
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echo "Abort. No changes were made."
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exit 1
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;;
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esac
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fi
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}
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show_setup_info() {
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cat <<EOF
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Welcome! Use this script to update Libreswan on your IPsec VPN server.
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@ -108,9 +91,6 @@ Welcome! Use this script to update Libreswan on your IPsec VPN server.
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Current version: Libreswan $swan_ver_old
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Version to install: Libreswan $SWAN_VER
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EOF
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cat <<'EOF'
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Note: This script will make the following changes to your VPN configuration:
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- Fix obsolete ipsec.conf and/or ikev2.conf options
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- Optimize VPN ciphers
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@ -118,127 +98,139 @@ Note: This script will make the following changes to your VPN configuration:
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EOF
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if [ "$SWAN_VER" != "4.4" ]; then
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if [ "$SWAN_VER" != "4.4" ]; then
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cat <<'EOF'
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WARNING: Older versions of Libreswan could contain known security vulnerabilities.
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See https://libreswan.org/security/ for more information.
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Are you sure you want to install an older version?
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EOF
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fi
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fi
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printf "Do you want to continue? [y/N] "
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read -r response
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case $response in
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[yY][eE][sS]|[yY])
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echo
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bigecho "Please be patient. Setup is continuing..."
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;;
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*)
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echo "Abort. No changes were made."
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exit 1
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;;
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esac
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printf "Do you want to continue? [y/N] "
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read -r response
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case $response in
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[yY][eE][sS]|[yY])
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echo
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;;
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*)
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echo "Abort. No changes were made."
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exit 1
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;;
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esac
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}
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mkdir -p /opt/src
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cd /opt/src || exit 1
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# shellcheck disable=SC2154,SC2039,SC3047
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start_setup() {
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trap 'dlo=$dl;dl=$LINENO' DEBUG 2>/dev/null
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trap 'finish $? $((dlo+1))' EXIT
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mkdir -p /opt/src
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cd /opt/src || exit 1
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}
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bigecho "Installing required packages..."
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install_pkgs() {
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bigecho "Installing required packages..."
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(
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set -x
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yum -y -q install nss-devel nspr-devel pkgconfig pam-devel \
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libcap-ng-devel libselinux-devel curl-devel nss-tools \
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flex bison gcc make wget sed tar \
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systemd-devel libevent-devel fipscheck-devel >/dev/null
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) || exiterr2
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}
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(
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set -x
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yum -y -q install nss-devel nspr-devel pkgconfig pam-devel \
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libcap-ng-devel libselinux-devel curl-devel nss-tools \
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flex bison gcc make wget sed tar \
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systemd-devel libevent-devel fipscheck-devel >/dev/null
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) || exiterr2
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get_libreswan() {
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bigecho "Downloading Libreswan..."
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swan_file="libreswan-$SWAN_VER.tar.gz"
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swan_url1="https://github.com/libreswan/libreswan/archive/v$SWAN_VER.tar.gz"
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swan_url2="https://download.libreswan.org/$swan_file"
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(
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set -x
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wget -t 3 -T 30 -q -O "$swan_file" "$swan_url1" || wget -t 3 -T 30 -q -O "$swan_file" "$swan_url2"
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) || exit 1
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/bin/rm -rf "/opt/src/libreswan-$SWAN_VER"
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tar xzf "$swan_file" && /bin/rm -f "$swan_file"
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}
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bigecho "Downloading Libreswan..."
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swan_file="libreswan-$SWAN_VER.tar.gz"
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swan_url1="https://github.com/libreswan/libreswan/archive/v$SWAN_VER.tar.gz"
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swan_url2="https://download.libreswan.org/$swan_file"
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(
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set -x
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wget -t 3 -T 30 -q -O "$swan_file" "$swan_url1" || wget -t 3 -T 30 -q -O "$swan_file" "$swan_url2"
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) || exit 1
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/bin/rm -rf "/opt/src/libreswan-$SWAN_VER"
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tar xzf "$swan_file" && /bin/rm -f "$swan_file"
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bigecho "Compiling and installing Libreswan, please wait..."
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cd "libreswan-$SWAN_VER" || exit 1
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[ "$SWAN_VER" = "4.1" ] && sed -i 's/ sysv )/ sysvinit )/' programs/setup/setup.in
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install_libreswan() {
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bigecho "Compiling and installing Libreswan, please wait..."
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cd "libreswan-$SWAN_VER" || exit 1
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[ "$SWAN_VER" = "4.1" ] && sed -i 's/ sysv )/ sysvinit )/' programs/setup/setup.in
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cat > Makefile.inc.local <<'EOF'
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WERROR_CFLAGS=-w -s
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USE_DNSSEC=false
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EOF
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echo "USE_DH2=true" >> Makefile.inc.local
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if ! grep -qs IFLA_XFRM_LINK /usr/include/linux/if_link.h; then
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echo "USE_XFRM_INTERFACE_IFLA_HEADER=true" >> Makefile.inc.local
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fi
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if [ "$SWAN_VER" != "3.32" ]; then
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echo "USE_NSS_KDF=false" >> Makefile.inc.local
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echo "FINALNSSDIR=/etc/ipsec.d" >> Makefile.inc.local
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fi
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NPROCS=$(grep -c ^processor /proc/cpuinfo)
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[ -z "$NPROCS" ] && NPROCS=1
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(
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set -x
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make "-j$((NPROCS+1))" -s base >/dev/null && make -s install-base >/dev/null
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)
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echo "USE_DH2=true" >> Makefile.inc.local
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if ! grep -qs IFLA_XFRM_LINK /usr/include/linux/if_link.h; then
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echo "USE_XFRM_INTERFACE_IFLA_HEADER=true" >> Makefile.inc.local
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fi
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if [ "$SWAN_VER" != "3.32" ]; then
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echo "USE_NSS_KDF=false" >> Makefile.inc.local
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echo "FINALNSSDIR=/etc/ipsec.d" >> Makefile.inc.local
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fi
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NPROCS=$(grep -c ^processor /proc/cpuinfo)
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[ -z "$NPROCS" ] && NPROCS=1
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(
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set -x
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make "-j$((NPROCS+1))" -s base >/dev/null && make -s install-base >/dev/null
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)
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cd /opt/src || exit 1
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/bin/rm -rf "/opt/src/libreswan-$SWAN_VER"
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if ! /usr/local/sbin/ipsec --version 2>/dev/null | grep -qF "$SWAN_VER"; then
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exiterr "Libreswan $SWAN_VER failed to build."
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fi
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cd /opt/src || exit 1
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/bin/rm -rf "/opt/src/libreswan-$SWAN_VER"
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if ! /usr/local/sbin/ipsec --version 2>/dev/null | grep -qF "$SWAN_VER"; then
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exiterr "Libreswan $SWAN_VER failed to build."
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fi
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}
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# Restore SELinux contexts
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restorecon /etc/ipsec.d/*db 2>/dev/null
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restorecon /usr/local/sbin -Rv 2>/dev/null
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restorecon /usr/local/libexec/ipsec -Rv 2>/dev/null
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restore_selinux() {
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restorecon /etc/ipsec.d/*db 2>/dev/null
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restorecon /usr/local/sbin -Rv 2>/dev/null
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restorecon /usr/local/libexec/ipsec -Rv 2>/dev/null
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}
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bigecho "Updating VPN configuration..."
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update_config() {
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bigecho "Updating VPN configuration..."
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IKE_NEW=" ike=aes256-sha2,aes128-sha2,aes256-sha1,aes128-sha1,aes256-sha2;modp1024,aes128-sha1;modp1024"
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PHASE2_NEW=" phase2alg=aes_gcm-null,aes128-sha1,aes256-sha1,aes256-sha2_512,aes128-sha2,aes256-sha2"
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IKE_NEW=" ike=aes256-sha2,aes128-sha2,aes256-sha1,aes128-sha1,aes256-sha2;modp1024,aes128-sha1;modp1024"
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PHASE2_NEW=" phase2alg=aes_gcm-null,aes128-sha1,aes256-sha1,aes256-sha2_512,aes128-sha2,aes256-sha2"
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dns_state=0
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DNS_SRV1=$(grep "modecfgdns1=" /etc/ipsec.conf | head -n 1 | cut -d '=' -f 2)
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DNS_SRV2=$(grep "modecfgdns2=" /etc/ipsec.conf | head -n 1 | cut -d '=' -f 2)
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[ -n "$DNS_SRV1" ] && dns_state=2
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[ -n "$DNS_SRV1" ] && [ -n "$DNS_SRV2" ] && dns_state=1
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[ "$(grep -c "modecfgdns1=" /etc/ipsec.conf)" -gt "1" ] && dns_state=3
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dns_state=0
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DNS_SRV1=$(grep "modecfgdns1=" /etc/ipsec.conf | head -n 1 | cut -d '=' -f 2)
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DNS_SRV2=$(grep "modecfgdns2=" /etc/ipsec.conf | head -n 1 | cut -d '=' -f 2)
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[ -n "$DNS_SRV1" ] && dns_state=2
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[ -n "$DNS_SRV1" ] && [ -n "$DNS_SRV2" ] && dns_state=1
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[ "$(grep -c "modecfgdns1=" /etc/ipsec.conf)" -gt "1" ] && dns_state=3
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sed -i".old-$(date +%F-%T)" \
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-e "s/^[[:space:]]\+auth=/ phase2=/" \
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-e "s/^[[:space:]]\+forceencaps=/ encapsulation=/" \
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-e "s/^[[:space:]]\+ike-frag=/ fragmentation=/" \
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-e "s/^[[:space:]]\+sha2_truncbug=/ sha2-truncbug=/" \
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-e "s/^[[:space:]]\+sha2-truncbug=yes/ sha2-truncbug=no/" \
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-e "s/^[[:space:]]\+ike=.\+/$IKE_NEW/" \
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-e "s/^[[:space:]]\+phase2alg=.\+/$PHASE2_NEW/" /etc/ipsec.conf
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sed -i".old-$(date +%F-%T)" \
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-e "s/^[[:space:]]\+auth=/ phase2=/" \
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-e "s/^[[:space:]]\+forceencaps=/ encapsulation=/" \
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-e "s/^[[:space:]]\+ike-frag=/ fragmentation=/" \
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-e "s/^[[:space:]]\+sha2_truncbug=/ sha2-truncbug=/" \
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-e "s/^[[:space:]]\+sha2-truncbug=yes/ sha2-truncbug=no/" \
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-e "s/^[[:space:]]\+ike=.\+/$IKE_NEW/" \
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-e "s/^[[:space:]]\+phase2alg=.\+/$PHASE2_NEW/" /etc/ipsec.conf
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if [ "$dns_state" = "1" ]; then
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sed -i -e "s/^[[:space:]]\+modecfgdns1=.\+/ modecfgdns=\"$DNS_SRV1 $DNS_SRV2\"/" \
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-e "/modecfgdns2=/d" /etc/ipsec.conf
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elif [ "$dns_state" = "2" ]; then
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sed -i "s/^[[:space:]]\+modecfgdns1=.\+/ modecfgdns=$DNS_SRV1/" /etc/ipsec.conf
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fi
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if [ "$dns_state" = "1" ]; then
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sed -i -e "s/^[[:space:]]\+modecfgdns1=.\+/ modecfgdns=\"$DNS_SRV1 $DNS_SRV2\"/" \
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-e "/modecfgdns2=/d" /etc/ipsec.conf
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elif [ "$dns_state" = "2" ]; then
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sed -i "s/^[[:space:]]\+modecfgdns1=.\+/ modecfgdns=$DNS_SRV1/" /etc/ipsec.conf
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fi
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sed -i "/ikev2=never/d" /etc/ipsec.conf
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sed -i "/conn shared/a \ ikev2=never" /etc/ipsec.conf
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sed -i "/ikev2=never/d" /etc/ipsec.conf
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sed -i "/conn shared/a \ ikev2=never" /etc/ipsec.conf
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if grep -qs ike-frag /etc/ipsec.d/ikev2.conf; then
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sed -i 's/^[[:space:]]\+ike-frag=/ fragmentation=/' /etc/ipsec.d/ikev2.conf
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fi
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}
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if grep -qs ike-frag /etc/ipsec.d/ikev2.conf; then
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sed -i 's/^[[:space:]]\+ike-frag=/ fragmentation=/' /etc/ipsec.d/ikev2.conf
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fi
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bigecho "Restarting IPsec service..."
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mkdir -p /run/pluto
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service ipsec restart 2>/dev/null
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restart_ipsec() {
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bigecho "Restarting IPsec service..."
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mkdir -p /run/pluto
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service ipsec restart 2>/dev/null
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}
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show_setup_complete() {
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cat <<EOF
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================================================
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@ -249,7 +241,7 @@ Libreswan $SWAN_VER has been successfully installed!
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EOF
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if [ "$dns_state" = "3" ]; then
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if [ "$dns_state" = "3" ]; then
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cat <<'EOF'
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IMPORTANT: You must edit /etc/ipsec.conf and replace
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all occurrences of these two lines:
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@ -262,8 +254,44 @@ IMPORTANT: You must edit /etc/ipsec.conf and replace
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Then run "sudo service ipsec restart".
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EOF
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fi
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fi
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}
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|
||||
check_swan_ver() {
|
||||
swan_ver_cur=4.4
|
||||
swan_ver_url="https://dl.ls20.com/v1/amzn/2/swanverupg?arch=$os_arch&ver1=$swan_ver_old&ver2=$SWAN_VER"
|
||||
[ "$1" != "0" ] && swan_ver_url="$swan_ver_url&e=$2"
|
||||
swan_ver_latest=$(wget -t 3 -T 15 -qO- "$swan_ver_url")
|
||||
if printf '%s' "$swan_ver_latest" | grep -Eq '^([3-9]|[1-9][0-9]{1,2})(\.([0-9]|[1-9][0-9]{1,2})){1,2}$' \
|
||||
&& [ "$1" = "0" ] && [ "$swan_ver_cur" != "$swan_ver_latest" ] \
|
||||
&& printf '%s\n%s' "$swan_ver_cur" "$swan_ver_latest" | sort -C -V; then
|
||||
cat <<EOF
|
||||
Note: A newer version of Libreswan ($swan_ver_latest) is available.
|
||||
To update, run:
|
||||
wget https://git.io/vpnupgrade -O vpnup.sh && sudo sh vpnup.sh
|
||||
|
||||
EOF
|
||||
fi
|
||||
}
|
||||
|
||||
finish() {
|
||||
check_swan_ver "$1" "$2"
|
||||
exit "$1"
|
||||
}
|
||||
|
||||
vpnupgrade() {
|
||||
check_root
|
||||
check_os
|
||||
check_libreswan
|
||||
show_setup_info
|
||||
start_setup
|
||||
install_pkgs
|
||||
get_libreswan
|
||||
install_libreswan
|
||||
restore_selinux
|
||||
update_config
|
||||
restart_ipsec
|
||||
show_setup_complete
|
||||
}
|
||||
|
||||
## Defer setup until we have the complete script
|
||||
|
||||
@ -19,104 +19,89 @@ SWAN_VER=4.4
|
||||
### DO NOT edit below this line ###
|
||||
|
||||
export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
|
||||
[ -n "$VPN_UPDATE_SWAN_VER" ] && SWAN_VER="$VPN_UPDATE_SWAN_VER"
|
||||
|
||||
exiterr() { echo "Error: $1" >&2; exit 1; }
|
||||
exiterr2() { exiterr "'yum install' failed."; }
|
||||
bigecho() { echo "## $1"; }
|
||||
|
||||
vpnupgrade() {
|
||||
check_root() {
|
||||
if [ "$(id -u)" != 0 ]; then
|
||||
exiterr "Script must be run as root. Try 'sudo sh $0'"
|
||||
fi
|
||||
}
|
||||
|
||||
[ -n "$VPN_UPDATE_SWAN_VER" ] && SWAN_VER="$VPN_UPDATE_SWAN_VER"
|
||||
check_vz() {
|
||||
if [ -f /proc/user_beancounters ]; then
|
||||
exiterr "OpenVZ VPS is not supported."
|
||||
fi
|
||||
}
|
||||
|
||||
os_type=centos
|
||||
os_arch=$(uname -m | tr -dc 'A-Za-z0-9_-')
|
||||
rh_file="/etc/redhat-release"
|
||||
if grep -qs "Red Hat" "$rh_file"; then
|
||||
os_type=rhel
|
||||
fi
|
||||
if grep -qs "release 7" "$rh_file"; then
|
||||
os_ver=7
|
||||
elif grep -qs "release 8" "$rh_file"; then
|
||||
os_ver=8
|
||||
grep -qi stream "$rh_file" && os_ver=8s
|
||||
grep -qi rocky "$rh_file" && os_type=rocky
|
||||
grep -qi alma "$rh_file" && os_type=alma
|
||||
else
|
||||
exiterr "This script only supports CentOS/RHEL 7 and 8."
|
||||
fi
|
||||
check_os() {
|
||||
os_type=centos
|
||||
os_arch=$(uname -m | tr -dc 'A-Za-z0-9_-')
|
||||
rh_file="/etc/redhat-release"
|
||||
if grep -qs "Red Hat" "$rh_file"; then
|
||||
os_type=rhel
|
||||
fi
|
||||
if grep -qs "release 7" "$rh_file"; then
|
||||
os_ver=7
|
||||
elif grep -qs "release 8" "$rh_file"; then
|
||||
os_ver=8
|
||||
grep -qi stream "$rh_file" && os_ver=8s
|
||||
grep -qi rocky "$rh_file" && os_type=rocky
|
||||
grep -qi alma "$rh_file" && os_type=alma
|
||||
else
|
||||
exiterr "This script only supports CentOS/RHEL 7 and 8."
|
||||
fi
|
||||
}
|
||||
|
||||
if [ -f /proc/user_beancounters ]; then
|
||||
exiterr "OpenVZ VPS is not supported."
|
||||
fi
|
||||
|
||||
if [ "$(id -u)" != 0 ]; then
|
||||
exiterr "Script must be run as root. Try 'sudo sh $0'"
|
||||
fi
|
||||
|
||||
case $SWAN_VER in
|
||||
3.32|4.[1234])
|
||||
true
|
||||
;;
|
||||
*)
|
||||
check_libreswan() {
|
||||
case $SWAN_VER in
|
||||
3.32|4.[1234])
|
||||
true
|
||||
;;
|
||||
*)
|
||||
cat 1>&2 <<EOF
|
||||
Error: Libreswan version '$SWAN_VER' is not supported.
|
||||
This script can install one of these versions:
|
||||
3.32, 4.1-4.3 or 4.4
|
||||
EOF
|
||||
exit 1
|
||||
;;
|
||||
esac
|
||||
exit 1
|
||||
;;
|
||||
esac
|
||||
|
||||
ipsec_ver=$(/usr/local/sbin/ipsec --version 2>/dev/null)
|
||||
swan_ver_old=$(printf '%s' "$ipsec_ver" | sed -e 's/.*Libreswan U\?//' -e 's/\( (\|\/K\).*//')
|
||||
if ! printf '%s' "$ipsec_ver" | grep -q "Libreswan"; then
|
||||
ipsec_ver=$(/usr/local/sbin/ipsec --version 2>/dev/null)
|
||||
swan_ver_old=$(printf '%s' "$ipsec_ver" | sed -e 's/.*Libreswan U\?//' -e 's/\( (\|\/K\).*//')
|
||||
if ! printf '%s' "$ipsec_ver" | grep -q "Libreswan"; then
|
||||
cat 1>&2 <<'EOF'
|
||||
Error: This script requires Libreswan already installed.
|
||||
See: https://github.com/hwdsl2/setup-ipsec-vpn
|
||||
EOF
|
||||
exit 1
|
||||
fi
|
||||
exit 1
|
||||
fi
|
||||
|
||||
swan_ver_cur=4.4
|
||||
swan_ver_url="https://dl.ls20.com/v1/$os_type/$os_ver/swanverupg?arch=$os_arch&ver1=$swan_ver_old&ver2=$SWAN_VER"
|
||||
swan_ver_latest=$(wget -t 3 -T 15 -qO- "$swan_ver_url")
|
||||
if printf '%s' "$swan_ver_latest" | grep -Eq '^([3-9]|[1-9][0-9]{1,2})(\.([0-9]|[1-9][0-9]{1,2})){1,2}$' \
|
||||
&& [ "$swan_ver_cur" != "$swan_ver_latest" ] \
|
||||
&& printf '%s\n%s' "$swan_ver_cur" "$swan_ver_latest" | sort -C -V; then
|
||||
echo "Note: A newer version of Libreswan ($swan_ver_latest) is available."
|
||||
echo " To update to the new version, exit this script and run:"
|
||||
echo " wget https://git.io/vpnupgrade -O vpnup.sh && sudo sh vpnup.sh"
|
||||
echo
|
||||
printf "Do you want to continue anyway? [y/N] "
|
||||
read -r response
|
||||
case $response in
|
||||
[yY][eE][sS]|[yY])
|
||||
echo
|
||||
;;
|
||||
*)
|
||||
echo "Abort. No changes were made."
|
||||
exit 1
|
||||
;;
|
||||
esac
|
||||
fi
|
||||
if [ "$swan_ver_old" = "$SWAN_VER" ]; then
|
||||
cat <<EOF
|
||||
You already have Libreswan version $SWAN_VER installed!
|
||||
If you continue, the same version will be re-installed.
|
||||
|
||||
if [ "$swan_ver_old" = "$SWAN_VER" ]; then
|
||||
echo "You already have Libreswan version $SWAN_VER installed! "
|
||||
echo "If you continue, the same version will be re-installed."
|
||||
echo
|
||||
printf "Do you want to continue anyway? [y/N] "
|
||||
read -r response
|
||||
case $response in
|
||||
[yY][eE][sS]|[yY])
|
||||
echo
|
||||
;;
|
||||
*)
|
||||
echo "Abort. No changes were made."
|
||||
exit 1
|
||||
;;
|
||||
esac
|
||||
fi
|
||||
EOF
|
||||
printf "Do you want to continue anyway? [y/N] "
|
||||
read -r response
|
||||
case $response in
|
||||
[yY][eE][sS]|[yY])
|
||||
echo
|
||||
;;
|
||||
*)
|
||||
echo "Abort. No changes were made."
|
||||
exit 1
|
||||
;;
|
||||
esac
|
||||
fi
|
||||
}
|
||||
|
||||
show_setup_info() {
|
||||
cat <<EOF
|
||||
|
||||
Welcome! Use this script to update Libreswan on your IPsec VPN server.
|
||||
@ -124,9 +109,6 @@ Welcome! Use this script to update Libreswan on your IPsec VPN server.
|
||||
Current version: Libreswan $swan_ver_old
|
||||
Version to install: Libreswan $SWAN_VER
|
||||
|
||||
EOF
|
||||
|
||||
cat <<'EOF'
|
||||
Note: This script will make the following changes to your VPN configuration:
|
||||
- Fix obsolete ipsec.conf and/or ikev2.conf options
|
||||
- Optimize VPN ciphers
|
||||
@ -134,144 +116,157 @@ Note: This script will make the following changes to your VPN configuration:
|
||||
|
||||
EOF
|
||||
|
||||
if [ "$SWAN_VER" != "4.4" ]; then
|
||||
if [ "$SWAN_VER" != "4.4" ]; then
|
||||
cat <<'EOF'
|
||||
WARNING: Older versions of Libreswan could contain known security vulnerabilities.
|
||||
See https://libreswan.org/security/ for more information.
|
||||
Are you sure you want to install an older version?
|
||||
|
||||
EOF
|
||||
fi
|
||||
fi
|
||||
|
||||
printf "Do you want to continue? [y/N] "
|
||||
read -r response
|
||||
case $response in
|
||||
[yY][eE][sS]|[yY])
|
||||
echo
|
||||
bigecho "Please be patient. Setup is continuing..."
|
||||
;;
|
||||
*)
|
||||
echo "Abort. No changes were made."
|
||||
exit 1
|
||||
;;
|
||||
esac
|
||||
printf "Do you want to continue? [y/N] "
|
||||
read -r response
|
||||
case $response in
|
||||
[yY][eE][sS]|[yY])
|
||||
echo
|
||||
;;
|
||||
*)
|
||||
echo "Abort. No changes were made."
|
||||
exit 1
|
||||
;;
|
||||
esac
|
||||
}
|
||||
|
||||
mkdir -p /opt/src
|
||||
cd /opt/src || exit 1
|
||||
# shellcheck disable=SC2154,SC2039,SC3047
|
||||
start_setup() {
|
||||
trap 'dlo=$dl;dl=$LINENO' DEBUG 2>/dev/null
|
||||
trap 'finish $? $((dlo+1))' EXIT
|
||||
mkdir -p /opt/src
|
||||
cd /opt/src || exit 1
|
||||
}
|
||||
|
||||
bigecho "Installing required packages..."
|
||||
|
||||
(
|
||||
set -x
|
||||
yum -y -q install nss-devel nspr-devel pkgconfig pam-devel \
|
||||
libcap-ng-devel libselinux-devel curl-devel nss-tools \
|
||||
flex bison gcc make wget sed tar >/dev/null
|
||||
) || exiterr2
|
||||
|
||||
erp="--enablerepo"
|
||||
rp1="$erp=*server-*optional*"
|
||||
rp2="$erp=*releases-optional*"
|
||||
rp3="$erp=[Pp]ower[Tt]ools"
|
||||
[ "$os_type" = "rhel" ] && rp3="$erp=codeready-builder-for-rhel-8-*"
|
||||
|
||||
if [ "$os_ver" = "7" ]; then
|
||||
install_pkgs_1() {
|
||||
bigecho "Installing required packages..."
|
||||
(
|
||||
set -x
|
||||
yum "$rp1" "$rp2" -y -q install systemd-devel libevent-devel fipscheck-devel >/dev/null
|
||||
yum -y -q install nss-devel nspr-devel pkgconfig pam-devel \
|
||||
libcap-ng-devel libselinux-devel curl-devel nss-tools \
|
||||
flex bison gcc make wget sed tar >/dev/null
|
||||
) || exiterr2
|
||||
else
|
||||
}
|
||||
|
||||
install_pkgs_2() {
|
||||
erp="--enablerepo"
|
||||
rp1="$erp=*server-*optional*"
|
||||
rp2="$erp=*releases-optional*"
|
||||
rp3="$erp=[Pp]ower[Tt]ools"
|
||||
[ "$os_type" = "rhel" ] && rp3="$erp=codeready-builder-for-rhel-8-*"
|
||||
if [ "$os_ver" = "7" ]; then
|
||||
(
|
||||
set -x
|
||||
yum "$rp1" "$rp2" -y -q install systemd-devel libevent-devel fipscheck-devel >/dev/null
|
||||
) || exiterr2
|
||||
else
|
||||
(
|
||||
set -x
|
||||
yum "$rp3" -y -q install systemd-devel libevent-devel fipscheck-devel >/dev/null
|
||||
) || exiterr2
|
||||
fi
|
||||
}
|
||||
|
||||
get_libreswan() {
|
||||
bigecho "Downloading Libreswan..."
|
||||
swan_file="libreswan-$SWAN_VER.tar.gz"
|
||||
swan_url1="https://github.com/libreswan/libreswan/archive/v$SWAN_VER.tar.gz"
|
||||
swan_url2="https://download.libreswan.org/$swan_file"
|
||||
(
|
||||
set -x
|
||||
yum "$rp3" -y -q install systemd-devel libevent-devel fipscheck-devel >/dev/null
|
||||
) || exiterr2
|
||||
fi
|
||||
wget -t 3 -T 30 -q -O "$swan_file" "$swan_url1" || wget -t 3 -T 30 -q -O "$swan_file" "$swan_url2"
|
||||
) || exit 1
|
||||
/bin/rm -rf "/opt/src/libreswan-$SWAN_VER"
|
||||
tar xzf "$swan_file" && /bin/rm -f "$swan_file"
|
||||
}
|
||||
|
||||
bigecho "Downloading Libreswan..."
|
||||
|
||||
swan_file="libreswan-$SWAN_VER.tar.gz"
|
||||
swan_url1="https://github.com/libreswan/libreswan/archive/v$SWAN_VER.tar.gz"
|
||||
swan_url2="https://download.libreswan.org/$swan_file"
|
||||
(
|
||||
set -x
|
||||
wget -t 3 -T 30 -q -O "$swan_file" "$swan_url1" || wget -t 3 -T 30 -q -O "$swan_file" "$swan_url2"
|
||||
) || exit 1
|
||||
/bin/rm -rf "/opt/src/libreswan-$SWAN_VER"
|
||||
tar xzf "$swan_file" && /bin/rm -f "$swan_file"
|
||||
|
||||
bigecho "Compiling and installing Libreswan, please wait..."
|
||||
|
||||
cd "libreswan-$SWAN_VER" || exit 1
|
||||
[ "$SWAN_VER" = "4.1" ] && sed -i 's/ sysv )/ sysvinit )/' programs/setup/setup.in
|
||||
install_libreswan() {
|
||||
bigecho "Compiling and installing Libreswan, please wait..."
|
||||
cd "libreswan-$SWAN_VER" || exit 1
|
||||
[ "$SWAN_VER" = "4.1" ] && sed -i 's/ sysv )/ sysvinit )/' programs/setup/setup.in
|
||||
cat > Makefile.inc.local <<'EOF'
|
||||
WERROR_CFLAGS=-w -s
|
||||
USE_DNSSEC=false
|
||||
EOF
|
||||
echo "USE_DH2=true" >> Makefile.inc.local
|
||||
if ! grep -qs IFLA_XFRM_LINK /usr/include/linux/if_link.h; then
|
||||
echo "USE_XFRM_INTERFACE_IFLA_HEADER=true" >> Makefile.inc.local
|
||||
fi
|
||||
if [ "$SWAN_VER" != "3.32" ]; then
|
||||
echo "USE_NSS_KDF=false" >> Makefile.inc.local
|
||||
echo "FINALNSSDIR=/etc/ipsec.d" >> Makefile.inc.local
|
||||
fi
|
||||
NPROCS=$(grep -c ^processor /proc/cpuinfo)
|
||||
[ -z "$NPROCS" ] && NPROCS=1
|
||||
(
|
||||
set -x
|
||||
make "-j$((NPROCS+1))" -s base >/dev/null && make -s install-base >/dev/null
|
||||
)
|
||||
echo "USE_DH2=true" >> Makefile.inc.local
|
||||
if ! grep -qs IFLA_XFRM_LINK /usr/include/linux/if_link.h; then
|
||||
echo "USE_XFRM_INTERFACE_IFLA_HEADER=true" >> Makefile.inc.local
|
||||
fi
|
||||
if [ "$SWAN_VER" != "3.32" ]; then
|
||||
echo "USE_NSS_KDF=false" >> Makefile.inc.local
|
||||
echo "FINALNSSDIR=/etc/ipsec.d" >> Makefile.inc.local
|
||||
fi
|
||||
NPROCS=$(grep -c ^processor /proc/cpuinfo)
|
||||
[ -z "$NPROCS" ] && NPROCS=1
|
||||
(
|
||||
set -x
|
||||
make "-j$((NPROCS+1))" -s base >/dev/null && make -s install-base >/dev/null
|
||||
)
|
||||
|
||||
cd /opt/src || exit 1
|
||||
/bin/rm -rf "/opt/src/libreswan-$SWAN_VER"
|
||||
if ! /usr/local/sbin/ipsec --version 2>/dev/null | grep -qF "$SWAN_VER"; then
|
||||
exiterr "Libreswan $SWAN_VER failed to build."
|
||||
fi
|
||||
cd /opt/src || exit 1
|
||||
/bin/rm -rf "/opt/src/libreswan-$SWAN_VER"
|
||||
if ! /usr/local/sbin/ipsec --version 2>/dev/null | grep -qF "$SWAN_VER"; then
|
||||
exiterr "Libreswan $SWAN_VER failed to build."
|
||||
fi
|
||||
}
|
||||
|
||||
# Restore SELinux contexts
|
||||
restorecon /etc/ipsec.d/*db 2>/dev/null
|
||||
restorecon /usr/local/sbin -Rv 2>/dev/null
|
||||
restorecon /usr/local/libexec/ipsec -Rv 2>/dev/null
|
||||
restore_selinux() {
|
||||
restorecon /etc/ipsec.d/*db 2>/dev/null
|
||||
restorecon /usr/local/sbin -Rv 2>/dev/null
|
||||
restorecon /usr/local/libexec/ipsec -Rv 2>/dev/null
|
||||
}
|
||||
|
||||
bigecho "Updating VPN configuration..."
|
||||
update_config() {
|
||||
bigecho "Updating VPN configuration..."
|
||||
IKE_NEW=" ike=aes256-sha2,aes128-sha2,aes256-sha1,aes128-sha1,aes256-sha2;modp1024,aes128-sha1;modp1024"
|
||||
PHASE2_NEW=" phase2alg=aes_gcm-null,aes128-sha1,aes256-sha1,aes256-sha2_512,aes128-sha2,aes256-sha2"
|
||||
|
||||
IKE_NEW=" ike=aes256-sha2,aes128-sha2,aes256-sha1,aes128-sha1,aes256-sha2;modp1024,aes128-sha1;modp1024"
|
||||
PHASE2_NEW=" phase2alg=aes_gcm-null,aes128-sha1,aes256-sha1,aes256-sha2_512,aes128-sha2,aes256-sha2"
|
||||
dns_state=0
|
||||
DNS_SRV1=$(grep "modecfgdns1=" /etc/ipsec.conf | head -n 1 | cut -d '=' -f 2)
|
||||
DNS_SRV2=$(grep "modecfgdns2=" /etc/ipsec.conf | head -n 1 | cut -d '=' -f 2)
|
||||
[ -n "$DNS_SRV1" ] && dns_state=2
|
||||
[ -n "$DNS_SRV1" ] && [ -n "$DNS_SRV2" ] && dns_state=1
|
||||
[ "$(grep -c "modecfgdns1=" /etc/ipsec.conf)" -gt "1" ] && dns_state=3
|
||||
|
||||
dns_state=0
|
||||
DNS_SRV1=$(grep "modecfgdns1=" /etc/ipsec.conf | head -n 1 | cut -d '=' -f 2)
|
||||
DNS_SRV2=$(grep "modecfgdns2=" /etc/ipsec.conf | head -n 1 | cut -d '=' -f 2)
|
||||
[ -n "$DNS_SRV1" ] && dns_state=2
|
||||
[ -n "$DNS_SRV1" ] && [ -n "$DNS_SRV2" ] && dns_state=1
|
||||
[ "$(grep -c "modecfgdns1=" /etc/ipsec.conf)" -gt "1" ] && dns_state=3
|
||||
sed -i".old-$(date +%F-%T)" \
|
||||
-e "s/^[[:space:]]\+auth=/ phase2=/" \
|
||||
-e "s/^[[:space:]]\+forceencaps=/ encapsulation=/" \
|
||||
-e "s/^[[:space:]]\+ike-frag=/ fragmentation=/" \
|
||||
-e "s/^[[:space:]]\+sha2_truncbug=/ sha2-truncbug=/" \
|
||||
-e "s/^[[:space:]]\+sha2-truncbug=yes/ sha2-truncbug=no/" \
|
||||
-e "s/^[[:space:]]\+ike=.\+/$IKE_NEW/" \
|
||||
-e "s/^[[:space:]]\+phase2alg=.\+/$PHASE2_NEW/" /etc/ipsec.conf
|
||||
|
||||
sed -i".old-$(date +%F-%T)" \
|
||||
-e "s/^[[:space:]]\+auth=/ phase2=/" \
|
||||
-e "s/^[[:space:]]\+forceencaps=/ encapsulation=/" \
|
||||
-e "s/^[[:space:]]\+ike-frag=/ fragmentation=/" \
|
||||
-e "s/^[[:space:]]\+sha2_truncbug=/ sha2-truncbug=/" \
|
||||
-e "s/^[[:space:]]\+sha2-truncbug=yes/ sha2-truncbug=no/" \
|
||||
-e "s/^[[:space:]]\+ike=.\+/$IKE_NEW/" \
|
||||
-e "s/^[[:space:]]\+phase2alg=.\+/$PHASE2_NEW/" /etc/ipsec.conf
|
||||
if [ "$dns_state" = "1" ]; then
|
||||
sed -i -e "s/^[[:space:]]\+modecfgdns1=.\+/ modecfgdns=\"$DNS_SRV1 $DNS_SRV2\"/" \
|
||||
-e "/modecfgdns2=/d" /etc/ipsec.conf
|
||||
elif [ "$dns_state" = "2" ]; then
|
||||
sed -i "s/^[[:space:]]\+modecfgdns1=.\+/ modecfgdns=$DNS_SRV1/" /etc/ipsec.conf
|
||||
fi
|
||||
|
||||
if [ "$dns_state" = "1" ]; then
|
||||
sed -i -e "s/^[[:space:]]\+modecfgdns1=.\+/ modecfgdns=\"$DNS_SRV1 $DNS_SRV2\"/" \
|
||||
-e "/modecfgdns2=/d" /etc/ipsec.conf
|
||||
elif [ "$dns_state" = "2" ]; then
|
||||
sed -i "s/^[[:space:]]\+modecfgdns1=.\+/ modecfgdns=$DNS_SRV1/" /etc/ipsec.conf
|
||||
fi
|
||||
sed -i "/ikev2=never/d" /etc/ipsec.conf
|
||||
sed -i "/conn shared/a \ ikev2=never" /etc/ipsec.conf
|
||||
|
||||
sed -i "/ikev2=never/d" /etc/ipsec.conf
|
||||
sed -i "/conn shared/a \ ikev2=never" /etc/ipsec.conf
|
||||
if grep -qs ike-frag /etc/ipsec.d/ikev2.conf; then
|
||||
sed -i 's/^[[:space:]]\+ike-frag=/ fragmentation=/' /etc/ipsec.d/ikev2.conf
|
||||
fi
|
||||
}
|
||||
|
||||
if grep -qs ike-frag /etc/ipsec.d/ikev2.conf; then
|
||||
sed -i 's/^[[:space:]]\+ike-frag=/ fragmentation=/' /etc/ipsec.d/ikev2.conf
|
||||
fi
|
||||
|
||||
bigecho "Restarting IPsec service..."
|
||||
|
||||
mkdir -p /run/pluto
|
||||
service ipsec restart 2>/dev/null
|
||||
restart_ipsec() {
|
||||
bigecho "Restarting IPsec service..."
|
||||
mkdir -p /run/pluto
|
||||
service ipsec restart 2>/dev/null
|
||||
}
|
||||
|
||||
show_setup_complete() {
|
||||
cat <<EOF
|
||||
|
||||
================================================
|
||||
@ -282,7 +277,7 @@ Libreswan $SWAN_VER has been successfully installed!
|
||||
|
||||
EOF
|
||||
|
||||
if [ "$dns_state" = "3" ]; then
|
||||
if [ "$dns_state" = "3" ]; then
|
||||
cat <<'EOF'
|
||||
IMPORTANT: You must edit /etc/ipsec.conf and replace
|
||||
all occurrences of these two lines:
|
||||
@ -295,8 +290,46 @@ IMPORTANT: You must edit /etc/ipsec.conf and replace
|
||||
Then run "sudo service ipsec restart".
|
||||
|
||||
EOF
|
||||
fi
|
||||
fi
|
||||
}
|
||||
|
||||
check_swan_ver() {
|
||||
swan_ver_cur=4.4
|
||||
swan_ver_url="https://dl.ls20.com/v1/$os_type/$os_ver/swanverupg?arch=$os_arch&ver1=$swan_ver_old&ver2=$SWAN_VER"
|
||||
[ "$1" != "0" ] && swan_ver_url="$swan_ver_url&e=$2"
|
||||
swan_ver_latest=$(wget -t 3 -T 15 -qO- "$swan_ver_url")
|
||||
if printf '%s' "$swan_ver_latest" | grep -Eq '^([3-9]|[1-9][0-9]{1,2})(\.([0-9]|[1-9][0-9]{1,2})){1,2}$' \
|
||||
&& [ "$1" = "0" ] && [ "$swan_ver_cur" != "$swan_ver_latest" ] \
|
||||
&& printf '%s\n%s' "$swan_ver_cur" "$swan_ver_latest" | sort -C -V; then
|
||||
cat <<EOF
|
||||
Note: A newer version of Libreswan ($swan_ver_latest) is available.
|
||||
To update, run:
|
||||
wget https://git.io/vpnupgrade -O vpnup.sh && sudo sh vpnup.sh
|
||||
|
||||
EOF
|
||||
fi
|
||||
}
|
||||
|
||||
finish() {
|
||||
check_swan_ver "$1" "$2"
|
||||
exit "$1"
|
||||
}
|
||||
|
||||
vpnupgrade() {
|
||||
check_root
|
||||
check_vz
|
||||
check_os
|
||||
check_libreswan
|
||||
show_setup_info
|
||||
start_setup
|
||||
install_pkgs_1
|
||||
install_pkgs_2
|
||||
get_libreswan
|
||||
install_libreswan
|
||||
restore_selinux
|
||||
update_config
|
||||
restart_ipsec
|
||||
show_setup_complete
|
||||
}
|
||||
|
||||
## Defer setup until we have the complete script
|
||||
|
||||
@ -19,114 +19,98 @@ SWAN_VER=4.4
|
||||
### DO NOT edit below this line ###
|
||||
|
||||
export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
|
||||
[ -n "$VPN_UPDATE_SWAN_VER" ] && SWAN_VER="$VPN_UPDATE_SWAN_VER"
|
||||
|
||||
exiterr() { echo "Error: $1" >&2; exit 1; }
|
||||
exiterr2() { exiterr "'apt-get install' failed."; }
|
||||
bigecho() { echo "## $1"; }
|
||||
|
||||
vpnupgrade() {
|
||||
check_root() {
|
||||
if [ "$(id -u)" != 0 ]; then
|
||||
exiterr "Script must be run as root. Try 'sudo sh $0'"
|
||||
fi
|
||||
}
|
||||
|
||||
[ -n "$VPN_UPDATE_SWAN_VER" ] && SWAN_VER="$VPN_UPDATE_SWAN_VER"
|
||||
check_vz() {
|
||||
if [ -f /proc/user_beancounters ]; then
|
||||
exiterr "OpenVZ VPS is not supported."
|
||||
fi
|
||||
}
|
||||
|
||||
os_type=$(lsb_release -si 2>/dev/null)
|
||||
os_arch=$(uname -m | tr -dc 'A-Za-z0-9_-')
|
||||
[ -z "$os_type" ] && [ -f /etc/os-release ] && os_type=$(. /etc/os-release && printf '%s' "$ID")
|
||||
case $os_type in
|
||||
[Uu]buntu)
|
||||
os_type=ubuntu
|
||||
;;
|
||||
[Dd]ebian)
|
||||
os_type=debian
|
||||
;;
|
||||
[Rr]aspbian)
|
||||
os_type=raspbian
|
||||
;;
|
||||
*)
|
||||
exiterr "This script only supports Ubuntu and Debian."
|
||||
;;
|
||||
esac
|
||||
check_os() {
|
||||
os_type=$(lsb_release -si 2>/dev/null)
|
||||
os_arch=$(uname -m | tr -dc 'A-Za-z0-9_-')
|
||||
[ -z "$os_type" ] && [ -f /etc/os-release ] && os_type=$(. /etc/os-release && printf '%s' "$ID")
|
||||
case $os_type in
|
||||
[Uu]buntu)
|
||||
os_type=ubuntu
|
||||
;;
|
||||
[Dd]ebian)
|
||||
os_type=debian
|
||||
;;
|
||||
[Rr]aspbian)
|
||||
os_type=raspbian
|
||||
;;
|
||||
*)
|
||||
exiterr "This script only supports Ubuntu and Debian."
|
||||
;;
|
||||
esac
|
||||
os_ver=$(sed 's/\..*//' /etc/debian_version | tr -dc 'A-Za-z0-9')
|
||||
if [ "$os_ver" = "8" ] || [ "$os_ver" = "jessiesid" ]; then
|
||||
exiterr "Debian 8 or Ubuntu < 16.04 is not supported."
|
||||
fi
|
||||
}
|
||||
|
||||
os_ver=$(sed 's/\..*//' /etc/debian_version | tr -dc 'A-Za-z0-9')
|
||||
if [ "$os_ver" = "8" ] || [ "$os_ver" = "jessiesid" ]; then
|
||||
exiterr "Debian 8 or Ubuntu < 16.04 is not supported."
|
||||
fi
|
||||
|
||||
if [ -f /proc/user_beancounters ]; then
|
||||
exiterr "OpenVZ VPS is not supported."
|
||||
fi
|
||||
|
||||
if [ "$(id -u)" != 0 ]; then
|
||||
exiterr "Script must be run as root. Try 'sudo sh $0'"
|
||||
fi
|
||||
|
||||
case $SWAN_VER in
|
||||
3.32|4.[1234])
|
||||
true
|
||||
;;
|
||||
*)
|
||||
check_libreswan() {
|
||||
case $SWAN_VER in
|
||||
3.32|4.[1234])
|
||||
true
|
||||
;;
|
||||
*)
|
||||
cat 1>&2 <<EOF
|
||||
Error: Libreswan version '$SWAN_VER' is not supported.
|
||||
This script can install one of these versions:
|
||||
3.32, 4.1-4.3 or 4.4
|
||||
EOF
|
||||
exit 1
|
||||
;;
|
||||
esac
|
||||
exit 1
|
||||
;;
|
||||
esac
|
||||
|
||||
if [ "$SWAN_VER" = "3.32" ] && [ "$os_ver" = "11" ]; then
|
||||
exiterr "Libreswan 3.32 is not supported on Debian 11."
|
||||
fi
|
||||
|
||||
ipsec_ver=$(/usr/local/sbin/ipsec --version 2>/dev/null)
|
||||
swan_ver_old=$(printf '%s' "$ipsec_ver" | sed -e 's/.*Libreswan U\?//' -e 's/\( (\|\/K\).*//')
|
||||
if ! printf '%s' "$ipsec_ver" | grep -q "Libreswan"; then
|
||||
ipsec_ver=$(/usr/local/sbin/ipsec --version 2>/dev/null)
|
||||
swan_ver_old=$(printf '%s' "$ipsec_ver" | sed -e 's/.*Libreswan U\?//' -e 's/\( (\|\/K\).*//')
|
||||
if ! printf '%s' "$ipsec_ver" | grep -q "Libreswan"; then
|
||||
cat 1>&2 <<'EOF'
|
||||
Error: This script requires Libreswan already installed.
|
||||
See: https://github.com/hwdsl2/setup-ipsec-vpn
|
||||
EOF
|
||||
exit 1
|
||||
fi
|
||||
exit 1
|
||||
fi
|
||||
|
||||
swan_ver_cur=4.4
|
||||
swan_ver_url="https://dl.ls20.com/v1/$os_type/$os_ver/swanverupg?arch=$os_arch&ver1=$swan_ver_old&ver2=$SWAN_VER"
|
||||
swan_ver_latest=$(wget -t 3 -T 15 -qO- "$swan_ver_url")
|
||||
if printf '%s' "$swan_ver_latest" | grep -Eq '^([3-9]|[1-9][0-9]{1,2})(\.([0-9]|[1-9][0-9]{1,2})){1,2}$' \
|
||||
&& [ "$swan_ver_cur" != "$swan_ver_latest" ] \
|
||||
&& printf '%s\n%s' "$swan_ver_cur" "$swan_ver_latest" | sort -C -V; then
|
||||
echo "Note: A newer version of Libreswan ($swan_ver_latest) is available."
|
||||
echo " To update to the new version, exit this script and run:"
|
||||
echo " wget https://git.io/vpnupgrade -O vpnup.sh && sudo sh vpnup.sh"
|
||||
echo
|
||||
printf "Do you want to continue anyway? [y/N] "
|
||||
read -r response
|
||||
case $response in
|
||||
[yY][eE][sS]|[yY])
|
||||
echo
|
||||
;;
|
||||
*)
|
||||
echo "Abort. No changes were made."
|
||||
exit 1
|
||||
;;
|
||||
esac
|
||||
fi
|
||||
if [ "$swan_ver_old" = "$SWAN_VER" ]; then
|
||||
cat <<EOF
|
||||
You already have Libreswan version $SWAN_VER installed!
|
||||
If you continue, the same version will be re-installed.
|
||||
|
||||
if [ "$swan_ver_old" = "$SWAN_VER" ]; then
|
||||
echo "You already have Libreswan version $SWAN_VER installed! "
|
||||
echo "If you continue, the same version will be re-installed."
|
||||
echo
|
||||
printf "Do you want to continue anyway? [y/N] "
|
||||
read -r response
|
||||
case $response in
|
||||
[yY][eE][sS]|[yY])
|
||||
echo
|
||||
;;
|
||||
*)
|
||||
echo "Abort. No changes were made."
|
||||
exit 1
|
||||
;;
|
||||
esac
|
||||
fi
|
||||
EOF
|
||||
printf "Do you want to continue anyway? [y/N] "
|
||||
read -r response
|
||||
case $response in
|
||||
[yY][eE][sS]|[yY])
|
||||
echo
|
||||
;;
|
||||
*)
|
||||
echo "Abort. No changes were made."
|
||||
exit 1
|
||||
;;
|
||||
esac
|
||||
fi
|
||||
}
|
||||
|
||||
show_setup_info() {
|
||||
cat <<EOF
|
||||
|
||||
Welcome! Use this script to update Libreswan on your IPsec VPN server.
|
||||
@ -134,9 +118,6 @@ Welcome! Use this script to update Libreswan on your IPsec VPN server.
|
||||
Current version: Libreswan $swan_ver_old
|
||||
Version to install: Libreswan $SWAN_VER
|
||||
|
||||
EOF
|
||||
|
||||
cat <<'EOF'
|
||||
Note: This script will make the following changes to your VPN configuration:
|
||||
- Fix obsolete ipsec.conf and/or ikev2.conf options
|
||||
- Optimize VPN ciphers
|
||||
@ -144,141 +125,155 @@ Note: This script will make the following changes to your VPN configuration:
|
||||
|
||||
EOF
|
||||
|
||||
if [ "$SWAN_VER" != "4.4" ]; then
|
||||
if [ "$SWAN_VER" != "4.4" ]; then
|
||||
cat <<'EOF'
|
||||
WARNING: Older versions of Libreswan could contain known security vulnerabilities.
|
||||
See https://libreswan.org/security/ for more information.
|
||||
Are you sure you want to install an older version?
|
||||
|
||||
EOF
|
||||
fi
|
||||
fi
|
||||
|
||||
printf "Do you want to continue? [y/N] "
|
||||
read -r response
|
||||
case $response in
|
||||
[yY][eE][sS]|[yY])
|
||||
echo
|
||||
bigecho "Please be patient. Setup is continuing..."
|
||||
;;
|
||||
*)
|
||||
echo "Abort. No changes were made."
|
||||
exit 1
|
||||
;;
|
||||
esac
|
||||
printf "Do you want to continue? [y/N] "
|
||||
read -r response
|
||||
case $response in
|
||||
[yY][eE][sS]|[yY])
|
||||
echo
|
||||
;;
|
||||
*)
|
||||
echo "Abort. No changes were made."
|
||||
exit 1
|
||||
;;
|
||||
esac
|
||||
}
|
||||
|
||||
mkdir -p /opt/src
|
||||
cd /opt/src || exit 1
|
||||
# shellcheck disable=SC2154,SC2039,SC3047
|
||||
start_setup() {
|
||||
trap 'dlo=$dl;dl=$LINENO' DEBUG 2>/dev/null
|
||||
trap 'finish $? $((dlo+1))' EXIT
|
||||
mkdir -p /opt/src
|
||||
cd /opt/src || exit 1
|
||||
}
|
||||
|
||||
bigecho "Installing required packages..."
|
||||
install_pkgs_1() {
|
||||
bigecho "Installing required packages..."
|
||||
export DEBIAN_FRONTEND=noninteractive
|
||||
(
|
||||
set -x
|
||||
apt-get -yqq update
|
||||
) || exiterr "'apt-get update' failed."
|
||||
}
|
||||
|
||||
export DEBIAN_FRONTEND=noninteractive
|
||||
(
|
||||
set -x
|
||||
apt-get -yqq update
|
||||
) || exiterr "'apt-get update' failed."
|
||||
(
|
||||
set -x
|
||||
apt-get -yqq install libnss3-dev libnspr4-dev pkg-config \
|
||||
libpam0g-dev libcap-ng-dev libcap-ng-utils libselinux1-dev \
|
||||
libcurl4-nss-dev libnss3-tools libevent-dev libsystemd-dev \
|
||||
flex bison gcc make wget sed >/dev/null
|
||||
) || exiterr2
|
||||
install_pkgs_2() {
|
||||
(
|
||||
set -x
|
||||
apt-get -yqq install libnss3-dev libnspr4-dev pkg-config \
|
||||
libpam0g-dev libcap-ng-dev libcap-ng-utils libselinux1-dev \
|
||||
libcurl4-nss-dev libnss3-tools libevent-dev libsystemd-dev \
|
||||
flex bison gcc make wget sed >/dev/null
|
||||
) || exiterr2
|
||||
}
|
||||
|
||||
bigecho "Downloading Libreswan..."
|
||||
get_libreswan() {
|
||||
bigecho "Downloading Libreswan..."
|
||||
swan_file="libreswan-$SWAN_VER.tar.gz"
|
||||
swan_url1="https://github.com/libreswan/libreswan/archive/v$SWAN_VER.tar.gz"
|
||||
swan_url2="https://download.libreswan.org/$swan_file"
|
||||
(
|
||||
set -x
|
||||
wget -t 3 -T 30 -q -O "$swan_file" "$swan_url1" || wget -t 3 -T 30 -q -O "$swan_file" "$swan_url2"
|
||||
) || exit 1
|
||||
/bin/rm -rf "/opt/src/libreswan-$SWAN_VER"
|
||||
tar xzf "$swan_file" && /bin/rm -f "$swan_file"
|
||||
}
|
||||
|
||||
swan_file="libreswan-$SWAN_VER.tar.gz"
|
||||
swan_url1="https://github.com/libreswan/libreswan/archive/v$SWAN_VER.tar.gz"
|
||||
swan_url2="https://download.libreswan.org/$swan_file"
|
||||
(
|
||||
set -x
|
||||
wget -t 3 -T 30 -q -O "$swan_file" "$swan_url1" || wget -t 3 -T 30 -q -O "$swan_file" "$swan_url2"
|
||||
) || exit 1
|
||||
/bin/rm -rf "/opt/src/libreswan-$SWAN_VER"
|
||||
tar xzf "$swan_file" && /bin/rm -f "$swan_file"
|
||||
|
||||
bigecho "Compiling and installing Libreswan, please wait..."
|
||||
|
||||
cd "libreswan-$SWAN_VER" || exit 1
|
||||
[ "$SWAN_VER" = "4.1" ] && sed -i 's/ sysv )/ sysvinit )/' programs/setup/setup.in
|
||||
install_libreswan() {
|
||||
bigecho "Compiling and installing Libreswan, please wait..."
|
||||
cd "libreswan-$SWAN_VER" || exit 1
|
||||
[ "$SWAN_VER" = "4.1" ] && sed -i 's/ sysv )/ sysvinit )/' programs/setup/setup.in
|
||||
cat > Makefile.inc.local <<'EOF'
|
||||
WERROR_CFLAGS=-w -s
|
||||
USE_DNSSEC=false
|
||||
EOF
|
||||
if [ "$SWAN_VER" = "3.32" ] || ! grep -qs 'VERSION_CODENAME=' /etc/os-release; then
|
||||
if [ "$SWAN_VER" = "3.32" ] || ! grep -qs 'VERSION_CODENAME=' /etc/os-release; then
|
||||
cat >> Makefile.inc.local <<'EOF'
|
||||
USE_DH31=false
|
||||
USE_NSS_AVA_COPY=true
|
||||
USE_NSS_IPSEC_PROFILE=false
|
||||
USE_GLIBC_KERN_FLIP_HEADERS=true
|
||||
EOF
|
||||
fi
|
||||
echo "USE_DH2=true" >> Makefile.inc.local
|
||||
if ! grep -qs IFLA_XFRM_LINK /usr/include/linux/if_link.h; then
|
||||
echo "USE_XFRM_INTERFACE_IFLA_HEADER=true" >> Makefile.inc.local
|
||||
fi
|
||||
if [ "$SWAN_VER" != "3.32" ]; then
|
||||
echo "USE_NSS_KDF=false" >> Makefile.inc.local
|
||||
echo "FINALNSSDIR=/etc/ipsec.d" >> Makefile.inc.local
|
||||
fi
|
||||
NPROCS=$(grep -c ^processor /proc/cpuinfo)
|
||||
[ -z "$NPROCS" ] && NPROCS=1
|
||||
(
|
||||
set -x
|
||||
make "-j$((NPROCS+1))" -s base >/dev/null && make -s install-base >/dev/null
|
||||
)
|
||||
|
||||
cd /opt/src || exit 1
|
||||
/bin/rm -rf "/opt/src/libreswan-$SWAN_VER"
|
||||
if ! /usr/local/sbin/ipsec --version 2>/dev/null | grep -qF "$SWAN_VER"; then
|
||||
exiterr "Libreswan $SWAN_VER failed to build."
|
||||
fi
|
||||
|
||||
bigecho "Updating VPN configuration..."
|
||||
|
||||
IKE_NEW=" ike=aes256-sha2,aes128-sha2,aes256-sha1,aes128-sha1,aes256-sha2;modp1024,aes128-sha1;modp1024"
|
||||
PHASE2_NEW=" phase2alg=aes_gcm-null,aes128-sha1,aes256-sha1,aes256-sha2_512,aes128-sha2,aes256-sha2"
|
||||
|
||||
if uname -m | grep -qi '^arm'; then
|
||||
if ! modprobe -q sha512; then
|
||||
PHASE2_NEW=" phase2alg=aes_gcm-null,aes128-sha1,aes256-sha1,aes128-sha2,aes256-sha2"
|
||||
fi
|
||||
fi
|
||||
echo "USE_DH2=true" >> Makefile.inc.local
|
||||
if ! grep -qs IFLA_XFRM_LINK /usr/include/linux/if_link.h; then
|
||||
echo "USE_XFRM_INTERFACE_IFLA_HEADER=true" >> Makefile.inc.local
|
||||
fi
|
||||
if [ "$SWAN_VER" != "3.32" ]; then
|
||||
echo "USE_NSS_KDF=false" >> Makefile.inc.local
|
||||
echo "FINALNSSDIR=/etc/ipsec.d" >> Makefile.inc.local
|
||||
fi
|
||||
NPROCS=$(grep -c ^processor /proc/cpuinfo)
|
||||
[ -z "$NPROCS" ] && NPROCS=1
|
||||
(
|
||||
set -x
|
||||
make "-j$((NPROCS+1))" -s base >/dev/null && make -s install-base >/dev/null
|
||||
)
|
||||
|
||||
dns_state=0
|
||||
DNS_SRV1=$(grep "modecfgdns1=" /etc/ipsec.conf | head -n 1 | cut -d '=' -f 2)
|
||||
DNS_SRV2=$(grep "modecfgdns2=" /etc/ipsec.conf | head -n 1 | cut -d '=' -f 2)
|
||||
[ -n "$DNS_SRV1" ] && dns_state=2
|
||||
[ -n "$DNS_SRV1" ] && [ -n "$DNS_SRV2" ] && dns_state=1
|
||||
[ "$(grep -c "modecfgdns1=" /etc/ipsec.conf)" -gt "1" ] && dns_state=3
|
||||
cd /opt/src || exit 1
|
||||
/bin/rm -rf "/opt/src/libreswan-$SWAN_VER"
|
||||
if ! /usr/local/sbin/ipsec --version 2>/dev/null | grep -qF "$SWAN_VER"; then
|
||||
exiterr "Libreswan $SWAN_VER failed to build."
|
||||
fi
|
||||
}
|
||||
|
||||
sed -i".old-$(date +%F-%T)" \
|
||||
-e "s/^[[:space:]]\+auth=/ phase2=/" \
|
||||
-e "s/^[[:space:]]\+forceencaps=/ encapsulation=/" \
|
||||
-e "s/^[[:space:]]\+ike-frag=/ fragmentation=/" \
|
||||
-e "s/^[[:space:]]\+sha2_truncbug=/ sha2-truncbug=/" \
|
||||
-e "s/^[[:space:]]\+sha2-truncbug=yes/ sha2-truncbug=no/" \
|
||||
-e "s/^[[:space:]]\+ike=.\+/$IKE_NEW/" \
|
||||
-e "s/^[[:space:]]\+phase2alg=.\+/$PHASE2_NEW/" /etc/ipsec.conf
|
||||
update_config() {
|
||||
bigecho "Updating VPN configuration..."
|
||||
IKE_NEW=" ike=aes256-sha2,aes128-sha2,aes256-sha1,aes128-sha1,aes256-sha2;modp1024,aes128-sha1;modp1024"
|
||||
PHASE2_NEW=" phase2alg=aes_gcm-null,aes128-sha1,aes256-sha1,aes256-sha2_512,aes128-sha2,aes256-sha2"
|
||||
|
||||
if [ "$dns_state" = "1" ]; then
|
||||
sed -i -e "s/^[[:space:]]\+modecfgdns1=.\+/ modecfgdns=\"$DNS_SRV1 $DNS_SRV2\"/" \
|
||||
-e "/modecfgdns2=/d" /etc/ipsec.conf
|
||||
elif [ "$dns_state" = "2" ]; then
|
||||
sed -i "s/^[[:space:]]\+modecfgdns1=.\+/ modecfgdns=$DNS_SRV1/" /etc/ipsec.conf
|
||||
fi
|
||||
if uname -m | grep -qi '^arm'; then
|
||||
if ! modprobe -q sha512; then
|
||||
PHASE2_NEW=" phase2alg=aes_gcm-null,aes128-sha1,aes256-sha1,aes128-sha2,aes256-sha2"
|
||||
fi
|
||||
fi
|
||||
|
||||
sed -i "/ikev2=never/d" /etc/ipsec.conf
|
||||
sed -i "/conn shared/a \ ikev2=never" /etc/ipsec.conf
|
||||
dns_state=0
|
||||
DNS_SRV1=$(grep "modecfgdns1=" /etc/ipsec.conf | head -n 1 | cut -d '=' -f 2)
|
||||
DNS_SRV2=$(grep "modecfgdns2=" /etc/ipsec.conf | head -n 1 | cut -d '=' -f 2)
|
||||
[ -n "$DNS_SRV1" ] && dns_state=2
|
||||
[ -n "$DNS_SRV1" ] && [ -n "$DNS_SRV2" ] && dns_state=1
|
||||
[ "$(grep -c "modecfgdns1=" /etc/ipsec.conf)" -gt "1" ] && dns_state=3
|
||||
|
||||
if grep -qs ike-frag /etc/ipsec.d/ikev2.conf; then
|
||||
sed -i 's/^[[:space:]]\+ike-frag=/ fragmentation=/' /etc/ipsec.d/ikev2.conf
|
||||
fi
|
||||
sed -i".old-$(date +%F-%T)" \
|
||||
-e "s/^[[:space:]]\+auth=/ phase2=/" \
|
||||
-e "s/^[[:space:]]\+forceencaps=/ encapsulation=/" \
|
||||
-e "s/^[[:space:]]\+ike-frag=/ fragmentation=/" \
|
||||
-e "s/^[[:space:]]\+sha2_truncbug=/ sha2-truncbug=/" \
|
||||
-e "s/^[[:space:]]\+sha2-truncbug=yes/ sha2-truncbug=no/" \
|
||||
-e "s/^[[:space:]]\+ike=.\+/$IKE_NEW/" \
|
||||
-e "s/^[[:space:]]\+phase2alg=.\+/$PHASE2_NEW/" /etc/ipsec.conf
|
||||
|
||||
bigecho "Restarting IPsec service..."
|
||||
if [ "$dns_state" = "1" ]; then
|
||||
sed -i -e "s/^[[:space:]]\+modecfgdns1=.\+/ modecfgdns=\"$DNS_SRV1 $DNS_SRV2\"/" \
|
||||
-e "/modecfgdns2=/d" /etc/ipsec.conf
|
||||
elif [ "$dns_state" = "2" ]; then
|
||||
sed -i "s/^[[:space:]]\+modecfgdns1=.\+/ modecfgdns=$DNS_SRV1/" /etc/ipsec.conf
|
||||
fi
|
||||
|
||||
mkdir -p /run/pluto
|
||||
service ipsec restart 2>/dev/null
|
||||
sed -i "/ikev2=never/d" /etc/ipsec.conf
|
||||
sed -i "/conn shared/a \ ikev2=never" /etc/ipsec.conf
|
||||
|
||||
if grep -qs ike-frag /etc/ipsec.d/ikev2.conf; then
|
||||
sed -i 's/^[[:space:]]\+ike-frag=/ fragmentation=/' /etc/ipsec.d/ikev2.conf
|
||||
fi
|
||||
}
|
||||
|
||||
restart_ipsec() {
|
||||
bigecho "Restarting IPsec service..."
|
||||
mkdir -p /run/pluto
|
||||
service ipsec restart 2>/dev/null
|
||||
}
|
||||
|
||||
show_setup_complete() {
|
||||
cat <<EOF
|
||||
|
||||
================================================
|
||||
@ -289,7 +284,7 @@ Libreswan $SWAN_VER has been successfully installed!
|
||||
|
||||
EOF
|
||||
|
||||
if [ "$dns_state" = "3" ]; then
|
||||
if [ "$dns_state" = "3" ]; then
|
||||
cat <<'EOF'
|
||||
IMPORTANT: You must edit /etc/ipsec.conf and replace
|
||||
all occurrences of these two lines:
|
||||
@ -302,8 +297,45 @@ IMPORTANT: You must edit /etc/ipsec.conf and replace
|
||||
Then run "sudo service ipsec restart".
|
||||
|
||||
EOF
|
||||
fi
|
||||
fi
|
||||
}
|
||||
|
||||
check_swan_ver() {
|
||||
swan_ver_cur=4.4
|
||||
swan_ver_url="https://dl.ls20.com/v1/$os_type/$os_ver/swanverupg?arch=$os_arch&ver1=$swan_ver_old&ver2=$SWAN_VER"
|
||||
[ "$1" != "0" ] && swan_ver_url="$swan_ver_url&e=$2"
|
||||
swan_ver_latest=$(wget -t 3 -T 15 -qO- "$swan_ver_url")
|
||||
if printf '%s' "$swan_ver_latest" | grep -Eq '^([3-9]|[1-9][0-9]{1,2})(\.([0-9]|[1-9][0-9]{1,2})){1,2}$' \
|
||||
&& [ "$1" = "0" ] && [ "$swan_ver_cur" != "$swan_ver_latest" ] \
|
||||
&& printf '%s\n%s' "$swan_ver_cur" "$swan_ver_latest" | sort -C -V; then
|
||||
cat <<EOF
|
||||
Note: A newer version of Libreswan ($swan_ver_latest) is available.
|
||||
To update, run:
|
||||
wget https://git.io/vpnupgrade -O vpnup.sh && sudo sh vpnup.sh
|
||||
|
||||
EOF
|
||||
fi
|
||||
}
|
||||
|
||||
finish() {
|
||||
check_swan_ver "$1" "$2"
|
||||
exit "$1"
|
||||
}
|
||||
|
||||
vpnupgrade() {
|
||||
check_root
|
||||
check_vz
|
||||
check_os
|
||||
check_libreswan
|
||||
show_setup_info
|
||||
start_setup
|
||||
install_pkgs_1
|
||||
install_pkgs_2
|
||||
get_libreswan
|
||||
install_libreswan
|
||||
update_config
|
||||
restart_ipsec
|
||||
show_setup_complete
|
||||
}
|
||||
|
||||
## Defer setup until we have the complete script
|
||||
|
||||
Loading…
Reference in New Issue
Block a user