install.sh

sharewall is very good

#!/bin/sh
#
# Script to install Shoreline Firewall
#
#     This program is under GPL [http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt]
#
#     (c) 2000,2001,2002,2003,2004,2005 - Tom Eastep ([e-mail])
#
#       Shorewall documentation is available at http://shorewall.net
#
#       This program is free software; you can redistribute it and/or modify
#       it under the terms of Version 2 of the GNU General Public License
#       as published by the Free Software Foundation.
#
#       This program is distributed in the hope that it will be useful,
#       but WITHOUT ANY WARRANTY; without even the implied warranty of
#       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
#       GNU General Public License for more details.
#
#       You should have received a copy of the GNU General Public License
#       along with this program; if not, write to the Free Software
#       Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#

VERSION=4.2.7

usage() # $1 = exit status
{
    ME=$(basename $0)
    echo "usage: $ME"
    echo "       $ME -v"
    echo "       $ME -h"
    echo "       $ME -n"
    exit $1
}

split() {
    local ifs
    ifs=$IFS
    IFS=:
    set -- $1
    echo $*
    IFS=$ifs
}

qt()
{
    "$@" >/dev/null 2>&1
}

mywhich() {
    local dir

    for dir in $(split $PATH); do
	if [ -x $dir/$1 ]; then
	    echo $dir/$1
	    return 0
	fi
    done

    return 2
}

run_install()
{
    if ! install $*; then
	echo
	echo "ERROR: Failed to install $*" >&2
	exit 1
    fi
}

cant_autostart()
{
    echo
    echo  "WARNING: Unable to configure shorewall to start automatically at boot" >&2
}

backup_directory() # $1 = directory to backup
{
    if [ -d $1 ]; then
	if cp -a $1  ${1}-${VERSION}.bkout ; then
	    echo
	    echo "$1 saved to ${1}-${VERSION}.bkout"
	else
	    exit 1
	fi
    fi
}

backup_file() # $1 = file to backup, $2 = (optional) Directory in which to create the backup
{
    if [ -z "${PREFIX}{NOBACKUP}" ]; then
	if [ -f $1 -a ! -f ${1}-${VERSION}.bkout ]; then
	    if [ -n "$2" ]; then
		if [ -d $2 ]; then
		    if cp -f $1 $2 ; then
			echo
			echo "$1 saved to $2/$(basename $1)"
		    else
			exit 1
		    fi
		fi
	    elif cp $1 ${1}-${VERSION}.bkout; then
		echo
		echo "$1 saved to ${1}-${VERSION}.bkout"
	    else
		exit 1
	    fi
	fi
    fi
}

delete_file() # $1 = file to delete
{
    rm -f $1
}

install_file() # $1 = source $2 = target $3 = mode
{
    run_install $OWNERSHIP -m $3 $1 ${2}
}

install_file_with_backup() # $1 = source $2 = target $3 = mode $4 = (optional) backup directory
{
    backup_file $2 $4
    run_install $OWNERSHIP -m $3 $1 ${2}
}

#
# Parse the run line
#
# DEST is the SysVInit script directory
# INIT is the name of the script in the $DEST directory
# RUNLEVELS is the chkconfig parmeters for firewall
# ARGS is "yes" if we've already parsed an argument
#
ARGS=""

if [ -z "$DEST" ] ; then
	DEST="/etc/init.d"
fi

if [ -z "$INIT" ] ; then
	INIT="shorewall"
fi

if [ -z "$RUNLEVELS" ] ; then
	RUNLEVELS=""
fi

DEBIAN=
CYGWIN=
MANDIR=${MANDIR:-"/usr/share/man"}

case $(uname) in
    CYGWIN*)
	DEST=
	INIT=
	OWNER=$(id -un)
	GROUP=$(id -gn)
	CYGWIN=Yes
	;;
    *)
	[ -z "$OWNER" ] && OWNER=root
	[ -z "$GROUP" ] && GROUP=root
	;;
esac

OWNERSHIP="-o $OWNER -g $GROUP"

NOBACKUP=

while [ $# -gt 0 ] ; do
    case "$1" in
	-h|help|?)
	    usage 0
	    ;;
        -v)
	    echo "Shorewall Firewall Installer Version $VERSION"
	    exit 0
	    ;;
	-n)
	    NOBACKUP=Yes
	    ;;
	*)
	    usage 1
	    ;;
    esac
    shift
    ARGS="yes"
done

PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/bin:/usr/local/sbin

#
# Determine where to install the firewall script
#

if [ -n "$PREFIX" ]; then
    if [ -z "$CYGWIN" ]; then
	if [ `id -u` != 0 ] ; then
	    echo "Not setting file owner/group permissions, not running as root."
	    OWNERSHIP=""
	fi

	install -d $OWNERSHIP -m 755 ${PREFIX}/sbin
	install -d $OWNERSHIP -m 755 ${PREFIX}${DEST}
    fi
else
    [ -x /usr/share/shorewall-shell/compiler -o -x /usr/share/shorewall-perl/compiler.pl ] || \
	{ echo "   ERROR: No Shorewall compiler is installed" >&2; exit 1; }
    if [ -z "$CYGWIN" ]; then
	if [ -d /etc/apt -a -e /usr/bin/dpkg ]; then
	    DEBIAN=yes
	elif [ -f /etc/slackware-version ] ; then
	    echo "installing Slackware specific configuration..."
	    DEST="/etc/rc.d"
	    MANDIR="/usr/man"
	    SLACKWARE=yes
	elif [ -f /etc/arch-release ] ; then
	    DEST="/etc/rc.d"
	    INIT="shorewall"
	    ARCHLINUX=yes
	fi
    fi
fi

#
# Change to the directory containing this script
#
cd "$(dirname $0)"

echo "Installing Shorewall-common Version $VERSION"

#
# Check for /etc/shorewall
#
if [ -d ${PREFIX}/etc/shorewall ]; then
    first_install=""
    if [ -z "$NOBACKUP" ]; then
	backup_directory ${PREFIX}/etc/shorewall
	backup_directory ${PREFIX}/usr/share/shorewall
	backup_directory ${PREFIX}/var/lib/shorewall
    fi
else
    first_install="Yes"
fi

if [ -z "$CYGWIN" ]; then
   install_file_with_backup shorewall ${PREFIX}/sbin/shorewall 0755 ${PREFIX}/var/lib/shorewall-${VERSION}.bkout
   echo "shorewall control program installed in ${PREFIX}/sbin/shorewall"
else
   install_file_with_backup shorewall ${PREFIX}/bin/shorewall 0755 ${PREFIX}/var/lib/shorewall-${VERSION}.bkout
   echo "shorewall control program installed in ${PREFIX}/bin/shorewall"
fi


#
# Install the Firewall Script
#
if [ -n "$DEBIAN" ]; then
    install_file_with_backup init.debian.sh /etc/init.d/shorewall 0544 ${PREFIX}/usr/share/shorewall-${VERSION}.bkout
elif [ -n "$ARCHLINUX" ]; then
    install_file_with_backup init.archlinux.sh ${PREFIX}${DEST}/$INIT 0544 ${PREFIX}/usr/share/shorewall-${VERSION}.bkout
elif [ -n "$SLACKWARE" ]; then
	install_file_with_backup init.slackware.firewall.sh ${PREFIX}${DEST}/rc.firewall 0644 ${PREFIX}/usr/share/shorewall-${VERSION}.bkout
	install_file_with_backup init.slackware.shorewall.sh ${PREFIX}${DEST}/rc.shorewall 0644 ${PREFIX}/usr/share/shorewall-${VERSION}.bkout
elif [ -n "$INIT" ]; then
    install_file_with_backup init.sh ${PREFIX}${DEST}/$INIT 0544 ${PREFIX}/usr/share/shorewall-${VERSION}.bkout
fi

[ -n "$CYGWIN" ] || echo  "Shorewall script installed in ${PREFIX}${DEST}/$INIT"

#
# Create /etc/shorewall, /usr/share/shorewall and /var/shorewall if needed
#
mkdir -p ${PREFIX}/etc/shorewall
mkdir -p ${PREFIX}/usr/share/shorewall
mkdir -p ${PREFIX}/usr/share/shorewall/configfiles
mkdir -p ${PREFIX}/var/lib/shorewall

chmod 755 ${PREFIX}/etc/shorewall
chmod 755 ${PREFIX}/usr/share/shorewall
chmod 755 ${PREFIX}/usr/share/shorewall/configfiles
#
# Install the config file
#
run_install $OWNERSHIP -m 0644 shorewall.conf ${PREFIX}/usr/share/shorewall/configfiles/shorewall.conf

qt mywhich perl && perl -p -w -i -e 's|^CONFIG_PATH=.*|CONFIG_PATH=/usr/share/shorewall/configfiles:/usr/share/shorewall|;' ${PREFIX}/usr/share/shorewall/configfiles/shorewall.conf

if [ ! -f ${PREFIX}/etc/shorewall/shorewall.conf ]; then
   run_install $OWNERSHIP -m 0644 shorewall.conf ${PREFIX}/etc/shorewall/shorewall.conf
   echo "Config file installed as ${PREFIX}/etc/shorewall/shorewall.conf"
fi


if [ -n "$ARCHLINUX" ] ; then
   sed -e 's!LOGFILE=/var/log/messages!LOGFILE=/var/log/messages.log!' -i ${PREFIX}/etc/shorewall/shorewall.conf
fi
#
# Install the zones file
#
run_install $OWNERSHIP -m 0644 zones ${PREFIX}/usr/share/shorewall/configfiles/zones

if [ -z "$CYGWIN" -a ! -f ${PREFIX}/etc/shorewall/zones ]; then
    run_install $OWNERSHIP -m 0744 zones ${PREFIX}/etc/shorewall/zones
    echo "Zones file installed as ${PREFIX}/etc/shorewall/zones"
fi

delete_file ${PREFIX}/usr/share/shorewall/compiler
delete_file ${PREFIX}/usr/share/shorewall/lib.accounting
delete_file ${PREFIX}/usr/share/shorewall/lib.actions
delete_file ${PREFIX}/usr/share/shorewall/lib.dynamiczones
delete_file ${PREFIX}/usr/share/shorewall/lib.maclist
delete_file ${PREFIX}/usr/share/shorewall/lib.nat
delete_file ${PREFIX}/usr/share/shorewall/lib.providers
delete_file ${PREFIX}/usr/share/shorewall/lib.proxyarp
delete_file ${PREFIX}/usr/share/shorewall/lib.tc
delete_file ${PREFIX}/usr/share/shorewall/lib.tcrules
delete_file ${PREFIX}/usr/share/shorewall/lib.tunnels
delete_file ${PREFIX}/usr/share/shorewall/prog.header
delete_file ${PREFIX}/usr/share/shorewall/prog.footer

#
# Install wait4ifup
#

install_file wait4ifup ${PREFIX}/usr/share/shorewall/wait4ifup 0755

echo
echo "wait4ifup installed in ${PREFIX}/usr/share/shorewall/wait4ifup"

#
# Install the policy file
#
run_install $OWNERSHIP -m 0644 policy ${PREFIX}/usr/share/shorewall/configfiles/policy

if [ -z "$CYGWIN" -a ! -f ${PREFIX}/etc/shorewall/policy ]; then
    run_install $OWNERSHIP -m 0600 policy ${PREFIX}/etc/shorewall/policy
    echo "Policy file installed as ${PREFIX}/etc/shorewall/policy"
fi
#
# Install the interfaces file
#
run_install $OWNERSHIP -m 0644 interfaces ${PREFIX}/usr/share/shorewall/configfiles/interfaces

if [ -z "$CYGWIN" -a ! -f ${PREFIX}/etc/shorewall/interfaces ]; then
    run_install $OWNERSHIP -m 0600 interfaces ${PREFIX}/etc/shorewall/interfaces
    echo "Interfaces file installed as ${PREFIX}/etc/shorewall/interfaces"
fi
#
# Install the ipsec file
#
run_install $OWNERSHIP -m 0644 ipsec ${PREFIX}/usr/share/shorewall/configfiles/ipsec

if [ -z "$CYGWIN" -a ! -f ${PREFIX}/etc/shorewall/ipsec ]; then
    run_install $OWNERSHIP -m 0600 ipsec ${PREFIX}/etc/shorewall/ipsec
    echo "Dummy IPSEC file installed as ${PREFIX}/etc/shorewall/ipsec"
fi

#
# Install the hosts file
#
run_install $OWNERSHIP -m 0644 hosts ${PREFIX}/usr/share/shorewall/configfiles/hosts

if [ -z "$CYGWIN" -a ! -f ${PREFIX}/etc/shorewall/hosts ]; then
    run_install $OWNERSHIP -m 0600 hosts ${PREFIX}/etc/shorewall/hosts
    echo "Hosts file installed as ${PREFIX}/etc/shorewall/hosts"
fi
#
# Install the rules file
#
run_install $OWNERSHIP -m 0644 rules ${PREFIX}/usr/share/shorewall/configfiles/rules

if [ -z "$CYGWIN" -a ! -f ${PREFIX}/etc/shorewall/rules ]; then
    run_install $OWNERSHIP -m 0600 rules ${PREFIX}/etc/shorewall/rules
    echo "Rules file installed as ${PREFIX}/etc/shorewall/rules"
fi
#
# Install the NAT file
#
run_install $OWNERSHIP -m 0644 nat ${PREFIX}/usr/share/shorewall/configfiles/nat

if [ -z "$CYGWIN" -a ! -f ${PREFIX}/etc/shorewall/nat ]; then
    run_install $OWNERSHIP -m 0600 nat ${PREFIX}/etc/shorewall/nat
    echo "NAT file installed as ${PREFIX}/etc/shorewall/nat"
fi
#
# Install the NETMAP file
#
run_install $OWNERSHIP -m 0644 netmap ${PREFIX}/usr/share/shorewall/configfiles/netmap

if [ -z "$CYGWIN" -a ! -f ${PREFIX}/etc/shorewall/netmap ]; then
    run_install $OWNERSHIP -m 0600 netmap ${PREFIX}/etc/shorewall/netmap
    echo "NETMAP file installed as ${PREFIX}/etc/shorewall/netmap"
fi
#
# Install the Parameters file
#