From 838fbc680770786bd3f151a70cd1c4499ebf1fa4 Mon Sep 17 00:00:00 2001
From: hwdsl2 <hwdsl2@users.noreply.github.com>
Date: Fri, 8 Jan 2016 03:03:56 -0600
Subject: [PATCH] Add upgrade scripts for Libreswan

---
 vpnupgrade_Libreswan.sh        | 111 +++++++++++++++++++++++++
 vpnupgrade_Libreswan_centos.sh | 146 +++++++++++++++++++++++++++++++++
 2 files changed, 257 insertions(+)
 create mode 100644 vpnupgrade_Libreswan.sh
 create mode 100644 vpnupgrade_Libreswan_centos.sh

diff --git a/vpnupgrade_Libreswan.sh b/vpnupgrade_Libreswan.sh
new file mode 100644
index 0000000..925ebea
--- /dev/null
+++ b/vpnupgrade_Libreswan.sh
@@ -0,0 +1,111 @@
+#!/bin/sh
+#
+# Simple script to upgrade Libreswan on Ubuntu and Debian
+#
+# Copyright (C) 2015 Lin Song
+#
+# This work is licensed under the Creative Commons Attribution-ShareAlike 3.0
+# Unported License: http://creativecommons.org/licenses/by-sa/3.0/
+#
+# Attribution required: please include my name in any derivative and let me
+# know how you have improved it!
+
+SWAN_VER=3.16
+
+if [ "$(lsb_release -si)" != "Ubuntu" ] && [ "$(lsb_release -si)" != "Debian" ]; then
+  echo "Looks like you aren't running this script on a Ubuntu or Debian system."
+  exit 1
+fi
+
+if [ "$(sed 's/\..*//' /etc/debian_version 2>/dev/null)" = "7" ]; then
+  echo "Sorry, this script does not support Debian 7 (Wheezy)."
+  exit 1
+fi
+
+if [ "$(id -u)" != 0 ]; then
+  echo "Sorry, you need to run this script as root."
+  exit 1
+fi
+
+ipsec --version 2>/dev/null | grep -qs "Libreswan"
+if [ "$?" != "0" ]; then
+  echo "This upgrade script requires that you already have Libreswan installed."
+  echo "Aborting."
+  exit 1
+fi
+
+ipsec --version 2>/dev/null | grep -qs "Libreswan ${SWAN_VER}"
+if [ "$?" = "0" ]; then
+  echo "You already have Libreswan ${SWAN_VER} installed! "
+  echo
+  read -r -p "Do you wish to continue anyway? [y/N] " response
+  case $response in
+    [yY][eE][sS]|[yY])
+      echo
+      ;;
+    *)
+      echo "Aborting."
+      exit 1
+      ;;
+  esac
+fi
+
+echo "Welcome! This upgrade script will build and install Libreswan ${SWAN_VER} on your server."
+echo "This is intended for use on VPN servers with an older version of Libreswan installed."
+echo "Your existing VPN configuration files will NOT be modified."
+
+echo
+read -r -p "Do you wish to continue? [y/N] " response
+case $response in
+  [yY][eE][sS]|[yY])
+    echo
+    echo "Please be patient. Setup is continuing..."
+    echo
+    ;;
+  *)
+    echo "Aborting."
+    exit 1
+    ;;
+esac
+
+# Create and change to working dir
+mkdir -p /opt/src
+cd /opt/src || { echo "Failed to change working directory to /opt/src. Aborting."; exit 1; }
+
+# Update package index and install wget and nano
+export DEBIAN_FRONTEND=noninteractive
+apt-get -y update
+apt-get -y install wget nano
+
+# Install necessary packages
+apt-get -y install libnss3-dev libnspr4-dev pkg-config libpam0g-dev \
+        libcap-ng-dev libcap-ng-utils libselinux1-dev \
+        libcurl4-nss-dev libgmp3-dev flex bison gcc make \
+        libunbound-dev libnss3-tools libevent-dev
+apt-get -y --no-install-recommends install xmlto
+apt-get -y install xl2tpd
+
+# Compile and install Libreswan (https://libreswan.org/)
+SWAN_URL=https://download.libreswan.org/libreswan-${SWAN_VER}.tar.gz
+/bin/rm -rf "/opt/src/libreswan-${SWAN_VER}"
+wget -t 3 -T 30 -qO- $SWAN_URL | tar xvz
+[ ! -d libreswan-${SWAN_VER} ] && { echo "Could not retrieve Libreswan source files. Aborting."; exit 1; }
+cd libreswan-${SWAN_VER}
+make programs && make install
+
+ipsec --version 2>/dev/null | grep -qs "Libreswan ${SWAN_VER}"
+if [ "$?" != "0" ]; then
+  echo
+  echo "Sorry, something went wrong."
+  echo "Libreswan ${SWAN_VER} was NOT installed successfully."
+  echo "Exiting script."
+  exit 1
+fi
+
+service ipsec restart
+service xl2tpd restart
+
+echo
+echo "Congratulations! Libreswan ${SWAN_VER} was installed successfully!"
+
+exit 0
diff --git a/vpnupgrade_Libreswan_centos.sh b/vpnupgrade_Libreswan_centos.sh
new file mode 100644
index 0000000..891d766
--- /dev/null
+++ b/vpnupgrade_Libreswan_centos.sh
@@ -0,0 +1,146 @@
+#!/bin/sh
+#
+# Simple script to upgrade Libreswan on CentOS and RHEL
+#
+# Copyright (C) 2015 Lin Song
+#
+# This work is licensed under the Creative Commons Attribution-ShareAlike 3.0
+# Unported License: http://creativecommons.org/licenses/by-sa/3.0/
+#
+# Attribution required: please include my name in any derivative and let me
+# know how you have improved it!
+
+SWAN_VER=3.16
+
+if [ ! -f /etc/redhat-release ]; then
+  echo "Looks like you aren't running this script on a CentOS/RHEL system."
+  exit 1
+fi
+
+if grep -qs -v -e "release 6" -e "release 7" /etc/redhat-release; then
+  echo "Sorry, this script only supports versions 6 and 7 of CentOS/RHEL."
+  exit 1
+fi
+
+if [ "$(uname -m)" != "x86_64" ]; then
+  echo "Sorry, this script only supports 64-bit CentOS/RHEL."
+  exit 1
+fi
+
+if [ "$(id -u)" != 0 ]; then
+  echo "Sorry, you need to run this script as root."
+  exit 1
+fi
+
+ipsec --version 2>/dev/null | grep -qs "Libreswan"
+if [ "$?" != "0" ]; then
+  echo "This upgrade script requires that you already have Libreswan installed."
+  echo "Aborting."
+  exit 1
+fi
+
+ipsec --version 2>/dev/null | grep -qs "Libreswan ${SWAN_VER}"
+if [ "$?" = "0" ]; then
+  echo "You already have Libreswan ${SWAN_VER} installed! "
+  echo
+  read -r -p "Do you wish to continue anyway? [y/N] " response
+  case $response in
+    [yY][eE][sS]|[yY])
+      echo
+      ;;
+    *)
+      echo "Aborting."
+      exit 1
+      ;;
+  esac
+fi
+
+echo "Welcome! This upgrade script will build and install Libreswan ${SWAN_VER} on your server."
+echo "This is intended for use on VPN servers with an older version of Libreswan installed."
+echo "Your existing VPN configuration files will NOT be modified."
+
+echo
+read -r -p "Do you wish to continue? [y/N] " response
+case $response in
+  [yY][eE][sS]|[yY])
+    echo
+    echo "Please be patient. Setup is continuing..."
+    echo
+    ;;
+  *)
+    echo "Aborting."
+    exit 1
+    ;;
+esac
+
+# Create and change to working dir
+mkdir -p /opt/src
+cd /opt/src || { echo "Failed to change working directory to /opt/src. Aborting."; exit 1; }
+
+# Install wget and nano
+yum -y install wget nano
+
+# Add the EPEL repository
+if grep -qs "release 6" /etc/redhat-release; then
+  EPEL_RPM="epel-release-6-8.noarch.rpm"
+  EPEL_URL="http://download.fedoraproject.org/pub/epel/6/x86_64/$EPEL_RPM"
+elif grep -qs "release 7" /etc/redhat-release; then
+  EPEL_RPM="epel-release-7-5.noarch.rpm"
+  EPEL_URL="http://download.fedoraproject.org/pub/epel/7/x86_64/e/$EPEL_RPM"
+else
+  echo "Sorry, this script only supports versions 6 and 7 of CentOS/RHEL."
+  exit 1
+fi
+wget -t 3 -T 30 -nv -O $EPEL_RPM $EPEL_URL
+[ ! -f $EPEL_RPM ] && { echo "Could not retrieve EPEL repository RPM file. Aborting."; exit 1; }
+rpm -ivh --force $EPEL_RPM && /bin/rm -f $EPEL_RPM
+
+# Install necessary packages
+yum -y install nss-devel nspr-devel pkgconfig pam-devel \
+    libcap-ng-devel libselinux-devel \
+    curl-devel gmp-devel flex bison gcc make \
+    fipscheck-devel unbound-devel gmp gmp-devel xmlto
+yum -y install ppp xl2tpd
+
+# Installed Libevent 2. Use backported version for CentOS 6.
+if grep -qs "release 6" /etc/redhat-release; then
+  LE2_URL="https://people.redhat.com/pwouters/libreswan-rhel6"
+  RPM1="libevent2-2.0.21-1.el6.x86_64.rpm"
+  RPM2="libevent2-devel-2.0.21-1.el6.x86_64.rpm"
+  wget -t 3 -T 30 -nv -O $RPM1 $LE2_URL/$RPM1
+  wget -t 3 -T 30 -nv -O $RPM2 $LE2_URL/$RPM2
+  [ ! -f $RPM1 ] || [ ! -f $RPM2 ] && { echo "Could not retrieve Libevent2 RPM file(s). Aborting."; exit 1; }
+  rpm -ivh --force $RPM1 $RPM2 && /bin/rm -f $RPM1 $RPM2
+elif grep -qs "release 7" /etc/redhat-release; then
+  yum -y install libevent-devel
+fi
+
+# Compile and install Libreswan (https://libreswan.org/)
+SWAN_URL=https://download.libreswan.org/libreswan-${SWAN_VER}.tar.gz
+/bin/rm -rf "/opt/src/libreswan-${SWAN_VER}"
+wget -t 3 -T 30 -qO- $SWAN_URL | tar xvz
+[ ! -d libreswan-${SWAN_VER} ] && { echo "Could not retrieve Libreswan source files. Aborting."; exit 1; }
+cd libreswan-${SWAN_VER}
+make programs && make install
+
+ipsec --version 2>/dev/null | grep -qs "Libreswan ${SWAN_VER}"
+if [ "$?" != "0" ]; then
+  echo
+  echo "Sorry, something went wrong."
+  echo "Libreswan ${SWAN_VER} was NOT installed successfully."
+  echo "Exiting script."
+  exit 1
+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
+
+service ipsec restart
+service xl2tpd restart
+
+echo
+echo "Congratulations! Libreswan ${SWAN_VER} was installed successfully!"
+
+exit 0