2dbdee1287
- Upgrade to new Libreswan version 3.19 - Some changes are required in the VPN config files - Ref: https://lists.libreswan.org/pipermail/swan-announce/2017/000023.html
164 lines
4.3 KiB
Bash
164 lines
4.3 KiB
Bash
#!/bin/sh
|
|
#
|
|
# Script to upgrade Libreswan on CentOS and RHEL
|
|
#
|
|
# Copyright (C) 2016 Lin Song <linsongui@gmail.com>
|
|
#
|
|
# 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!
|
|
|
|
# Check https://libreswan.org for the latest version
|
|
swan_ver=3.19
|
|
|
|
### DO NOT edit below this line ###
|
|
|
|
export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
|
|
|
|
exiterr() { echo "Error: $1" >&2; exit 1; }
|
|
exiterr2() { echo "Error: 'yum install' failed." >&2; exit 1; }
|
|
|
|
if ! grep -qs -e "release 6" -e "release 7" /etc/redhat-release; then
|
|
exiterr "This script only supports CentOS/RHEL 6 and 7."
|
|
fi
|
|
|
|
if [ -f /proc/user_beancounters ]; then
|
|
exiterr "This script does not support OpenVZ VPS."
|
|
fi
|
|
|
|
if [ "$(id -u)" != 0 ]; then
|
|
exiterr "Script must be run as root. Try 'sudo sh $0'"
|
|
fi
|
|
|
|
if [ -z "$swan_ver" ]; then
|
|
exiterr "Libreswan version 'swan_ver' not specified."
|
|
fi
|
|
|
|
if ! /usr/local/sbin/ipsec --version 2>/dev/null | grep -qs "Libreswan"; then
|
|
exiterr "This script requires Libreswan already installed."
|
|
fi
|
|
|
|
if /usr/local/sbin/ipsec --version 2>/dev/null | grep -qs "$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 wish to continue anyway? [y/N] "
|
|
read -r response
|
|
case $response in
|
|
[yY][eE][sS]|[yY])
|
|
echo
|
|
;;
|
|
*)
|
|
echo "Aborting."
|
|
exit 1
|
|
;;
|
|
esac
|
|
fi
|
|
|
|
clear
|
|
|
|
cat <<EOF
|
|
Welcome! This script will build and install Libreswan $swan_ver on your server.
|
|
Additional packages required for Libreswan compilation will also be installed.
|
|
|
|
This is intended for use on servers running an older version of Libreswan.
|
|
|
|
EOF
|
|
|
|
cat <<'EOF'
|
|
!!! IMPORTANT NOTE !!!
|
|
|
|
The new Libreswan version 3.19 requires some configuration changes.
|
|
This script will make the following changes to your /etc/ipsec.conf:
|
|
|
|
Replace this line:
|
|
auth=esp
|
|
with the following:
|
|
phase2=esp
|
|
|
|
Replace this line:
|
|
forceencaps=yes
|
|
with the following:
|
|
encapsulation=yes
|
|
|
|
Your other VPN configuration files will not be modified.
|
|
|
|
EOF
|
|
|
|
printf "Do you wish to continue? [y/N] "
|
|
read -r response
|
|
case $response in
|
|
[yY][eE][sS]|[yY])
|
|
echo
|
|
echo "Please be patient. Setup is continuing..."
|
|
echo
|
|
;;
|
|
*)
|
|
echo "Aborting."
|
|
exit 1
|
|
;;
|
|
esac
|
|
|
|
# Create and change to working dir
|
|
mkdir -p /opt/src
|
|
cd /opt/src || exiterr "Cannot enter /opt/src."
|
|
|
|
# Install Wget
|
|
yum -y install wget || exiterr2
|
|
|
|
# Add the EPEL repository
|
|
yum -y install epel-release || exiterr2
|
|
|
|
# Install necessary packages
|
|
yum -y install nss-devel nspr-devel pkgconfig pam-devel \
|
|
libcap-ng-devel libselinux-devel \
|
|
curl-devel flex bison gcc make \
|
|
fipscheck-devel unbound-devel xmlto || exiterr2
|
|
|
|
# Install libevent2 and systemd-devel
|
|
if grep -qs "release 6" /etc/redhat-release; then
|
|
yum -y remove libevent-devel
|
|
yum -y install libevent2-devel || exiterr2
|
|
else
|
|
yum -y install libevent-devel systemd-devel || exiterr2
|
|
fi
|
|
|
|
# Compile and install Libreswan
|
|
swan_file="libreswan-$swan_ver.tar.gz"
|
|
swan_url1="https://download.libreswan.org/$swan_file"
|
|
swan_url2="https://github.com/libreswan/libreswan/archive/v$swan_ver.tar.gz"
|
|
if ! { wget -t 3 -T 30 -nv -O "$swan_file" "$swan_url1" || wget -t 3 -T 30 -nv -O "$swan_file" "$swan_url2"; }; then
|
|
exiterr "Cannot download Libreswan source."
|
|
fi
|
|
/bin/rm -rf "/opt/src/libreswan-$swan_ver"
|
|
tar xzf "$swan_file" && /bin/rm -f "$swan_file"
|
|
cd "libreswan-$swan_ver" || exiterr "Cannot enter Libreswan source dir."
|
|
echo "WERROR_CFLAGS =" > Makefile.inc.local
|
|
make -s programs && make -s install
|
|
|
|
# Verify the install and clean up
|
|
cd /opt/src || exiterr "Cannot enter /opt/src."
|
|
/bin/rm -rf "/opt/src/libreswan-$swan_ver"
|
|
if ! /usr/local/sbin/ipsec --version 2>/dev/null | grep -qs "$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
|
|
|
|
# Update ipsec.conf options
|
|
sed -i.old -e "s/auth=esp/phase2=esp/" -e "s/forceencaps=yes/encapsulation=yes/" /etc/ipsec.conf
|
|
|
|
# Restart IPsec service
|
|
service ipsec restart
|
|
|
|
echo
|
|
echo "Libreswan $swan_ver was installed successfully! "
|
|
echo
|
|
|
|
exit 0
|