#!/bin/sh # # Script to install Shoreline Firewall # # This program is under GPL [http://www.gnu.org/copyleft/gpl.htm] # # (c) 2000,2001,2002,2003 - Tom Eastep (teastep@shorewall.net) # # Seawall documentation is available at http://seawall.sourceforge.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., 675 Mass Ave, Cambridge, MA 02139, USA # # Usage: # # If you are running a distribution that has a directory called /etc/rc.d/init.d or one # called /etc/init.d or you are running Slackware then simply cd to the directory # containing this script and run it. # # ./install.sh # # If you don't have either of those directories, you will need to determine where the # SysVInit scripts are kept on your system and pass the name of that directory. # # ./install.sh /etc/rc.d/scripts # # The default is that the firewall will be started in run levels 2-5 starting at # position 15 and stopping at position 90. This is correct RedHat/Mandrake, Debian, # Caldera and Corel. # # If you wish to change that, you can pass -r "<levels startpos stoppos>". # # Example 1: You wish to start your firewall in runlevels 2 and three, start at position # 15 and stop at position 90 # # ./install.sh -r "23 15 90" # # Example 2: You wish to start your firewall only in run level 3, start at position 5 # and stop at position 95. # # ./install.sh -r "3 5 95" /etc/rc.d/scripts # # For distributions that don't include chkconfig (Slackware, for example), the # /etc/rc.d/rc.local file is modified to start the firewall. # VERSION=1.4.8 usage() # $1 = exit status { ME=`basename $0` echo "usage: $ME [ -r \"<chkconfig parameters>\" ] [ <init scripts directory> ]" echo " $ME [ -v ]" echo " $ME [ -h ]" exit $1 } run_install() { if ! install $*; then echo echo "ERROR: Failed to install $*" exit 1 fi } cant_autostart() { echo echo "WARNING: Unable to configure Shorewall to start" echo " automatically at boot" } backup_file() # $1 = file to backup { if [ -z "$PREFIX" -a -f $1 -a ! -f ${1}-${VERSION}.bkout ]; then if (cp $1 ${1}-${VERSION}.bkout); then echo echo "$1 saved to ${1}-${VERSION}.bkout" else exit 1 fi fi } delete_file() # $1 = file to delete { if [ -z "$PREFIX" -a -f $1 -a ! -f ${1}-${VERSION}.bkout ]; then if (mv $1 ${1}-${VERSION}.bkout); then echo echo "$1 moved to ${1}-${VERSION}.bkout" else exit 1 fi fi } modify_rclocal() { if [ -f /etc/rc.d/rc.local ]; then if [ -z "`grep shorewall /etc/rc.d/rc.local`" ]; then cp -f /etc/rc.d/rc.local /etc/rc.d/rc.local-shorewall.bkout echo >> /etc/rc.d/rc.local echo "/sbin/shorewall start" >> /etc/rc.d/rc.local echo "/etc/rc.d/rc.local modified to start Shorewall" fi else cant_autostart fi } install_file_with_backup() # $1 = source $2 = target $3 = mode { backup_file $2 run_install -o $OWNER -g $GROUP -m $3 $1 ${2} } # # Parse the run line # # DEST is the SysVInit script directory # RUNLEVELS is the chkconfig parmeters for firewall # ARGS is "yes" if we've already parsed an argument # DEST="" RUNLEVELS="" ARGS="" if [ -z "$OWNER" ] ; then OWNER=root fi if [ -z "$GROUP" ] ; then GROUP=root fi while [ $# -gt 0 ] ; do case "$1" in -h|help|?) if [ -n "$ARGS" ]; then usage 1 fi usage 0 ;; -r) if [ -n "$RUNLEVELS" -o $# -eq 1 ]; then usage 1 fi RUNLEVELS="$2"; shift ;; -v) if [ -n "$ARGS" ]; then usage 1 fi echo "Shorewall Firewall Installer Version $VERSION" exit 0 ;; *) if [ -n "$DEST" ]; then usage 1 fi DEST="$1" ;; esac shift ARGS="yes" done PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/bin:/usr/local/sbin # # Determine where to install the firewall script # if [ -n "$PREFIX" ]; then install -d -o $OWNER -g $GROUP -m 755 ${PREFIX}/sbin install -d -o $OWNER -g $GROUP -m 755 ${PREFIX}${DEST} fi FIREWALL="shorewall" if [ -z "$DEST" ]; then # # We make this first test so that on RedHat systems that have Seawall installed, # we can still use PREFIX (the code that reads the existing symbolic link # fails dreadfully if the link is relative and PREFIX is non-null). # if [ -x /etc/rc.d/init.d/firewall ]; then DEST=/etc/rc.d/init.d elif [ -L /etc/shorewall/firewall ]; then TEMP=`ls -l /etc/shorewall/firewall | sed 's/^.*> //'` DEST=`dirname $TEMP` FIREWALL=`basename $TEMP` elif [ -d /etc/rc.d/init.d ]; then DEST=/etc/rc.d/init.d elif [ -d /etc/init.d ]; then DEST=/etc/init.d elif [ -f /etc/rc.d/rc.local ]; then DEST=/etc/rc.d FIREWALL="rc.shorewall" else echo "ERROR: Can't determine where to install the firewall script" echo " Rerun $0 passing the name of the SysVInit script directory" echo " on your system" exit 1 fi fi # # Change to the directory containing this script # cd "`dirname $0`" echo "Installing Shorewall Version $VERSION" # # Check for /etc/shorewall # if [ -d ${PREFIX}/etc/shorewall ]; then first_install="" else first_install="Yes" fi install_file_with_backup shorewall ${PREFIX}/sbin/shorewall 0544 echo echo "Shorewall control program installed in ${PREFIX}/sbin/shorewall" # # Install the Firewall Script # if [ -n "$RUNLEVELS" ]; then # # User specified chkconfig parameters -- build an awk script to install them # in the firewall script # echo "/# chkconfig/ { print \"# chkconfig: $RUNLEVELS\" ; next }" > awk.temp echo "{ print }" >> awk.temp awk -f awk.temp init.sh > init.temp if [ $? -ne 0 ]; then echo echo "ERROR: Error running awk." echo " You must run `basename $0` without the "-r" option then edit" echo " $DEST/$FIREWALL manually (line beginning '# chkconfig:')" exit 1 fi install_file_with_backup init.temp ${PREFIX}${DEST}/$FIREWALL 0544 rm -f init.temp awk.tmp else install_file_with_backup init.sh ${PREFIX}${DEST}/$FIREWALL 0544 fi echo echo "Shorewall script installed in ${PREFIX}${DEST}/$FIREWALL" # # 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}/var/lib/shorewall # # Install the config file # if [ -f ${PREFIX}/etc/shorewall/shorewall.conf ]; then backup_file /etc/shorewall/shorewall.conf else run_install -o $OWNER -g $GROUP -m 0744 shorewall.conf ${PREFIX}/etc/shorewall/shorewall.conf echo echo "Config file installed as ${PREFIX}/etc/shorewall/shorewall.conf" fi # # Install the zones file # if [ -f ${PREFIX}/etc/shorewall/zones ]; then backup_file /etc/shorewall/zones else run_install -o $OWNER -g $GROUP -m 0744 zones ${PREFIX}/etc/shorewall/zones echo echo "Zones file installed as ${PREFIX}/etc/shorewall/zones" fi # # Install the functions file # if [ -f ${PREFIX}/etc/shorewall/functions ]; then backup_file ${PREFIX}/etc/shorewall/functions rm -f ${PREFIX}/etc/shorewall/functions fi if [ -f ${PREFIX}/var/lib/shorewall/functions ]; then backup_file ${PREFIX}/var/lib/shorewall/functions rm -f ${PREFIX}/var/lib/shorewall/functions fi install_file_with_backup functions ${PREFIX}/usr/share/shorewall/functions 0444 echo echo "Common functions installed in ${PREFIX}/usr/share/shorewall/functions" # # Install the Help file # install_file_with_backup help ${PREFIX}/usr/share/shorewall/help 0544 echo echo "Help command executor installed in ${PREFIX}/usr/share/shorewall/help" # # Install the common.def file # install_file_with_backup common.def ${PREFIX}/etc/shorewall/common.def 0444 echo echo "Common rules installed in ${PREFIX}/etc/shorewall/common.def" # # Delete the icmp.def file # delete_file icmp.def # # Install the policy file # if [ -f ${PREFIX}/etc/shorewall/policy ]; then backup_file /etc/shorewall/policy else run_install -o $OWNER -g $GROUP -m 0600 policy ${PREFIX}/etc/shorewall/policy echo echo "Policy file installed as ${PREFIX}/etc/shorewall/policy" fi # # Install the interfaces file # if [ -f ${PREFIX}/etc/shorewall/interfaces ]; then backup_file /etc/shorewall/interfaces else run_install -o $OWNER -g $GROUP -m 0600 interfaces ${PREFIX}/etc/shorewall/interfaces echo echo "Interfaces file installed as ${PREFIX}/etc/shorewall/interfaces" fi # # Install the hosts file # if [ -f ${PREFIX}/etc/shorewall/hosts ]; then backup_file /etc/shorewall/hosts else run_install -o $OWNER -g $GROUP -m 0600 hosts ${PREFIX}/etc/shorewall/hosts echo echo "Hosts file installed as ${PREFIX}/etc/shorewall/hosts" fi # # Install the rules file # if [ -f ${PREFIX}/etc/shorewall/rules ]; then backup_file /etc/shorewall/rules else run_install -o $OWNER -g $GROUP -m 0600 rules ${PREFIX}/etc/shorewall/rules echo echo "Rules file installed as ${PREFIX}/etc/shorewall/rules" fi # # Install the NAT file # if [ -f ${PREFIX}/etc/shorewall/nat ]; then backup_file /etc/shorewall/nat else run_install -o $OWNER -g $GROUP -m 0600 nat ${PREFIX}/etc/shorewall/nat echo echo "NAT file installed as ${PREFIX}/etc/shorewall/nat" fi # # Install the Parameters file # if [ -f ${PREFIX}/etc/shorewall/params ]; then backup_file /etc/shorewall/params else run_install -o $OWNER -g $GROUP -m 0600 params ${PREFIX}/etc/shorewall/params echo echo "Parameter file installed as ${PREFIX}/etc/shorewall/params" fi # # Install the proxy ARP file # if [ -f ${PREFIX}/etc/shorewall/proxyarp ]; then backup_file /etc/shorewall/proxyarp else run_install -o $OWNER -g $GROUP -m 0600 proxyarp ${PREFIX}/etc/shorewall/proxyarp echo echo "Proxy ARP file installed as ${PREFIX}/etc/shorewall/proxyarp" fi # # Install the Stopped Routing file # if [ -f ${PREFIX}/etc/shorewall/routestopped ]; then backup_file /etc/shorewall/routestopped else run_install -o $OWNER -g $GROUP -m 0600 routestopped ${PREFIX}/etc/shorewall/routestopped echo echo "Stopped Routing file installed as ${PREFIX}/etc/shorewall/routestopped" fi # # Install the Mac List file # if [ -f ${PREFIX}/etc/shorewall/maclist ]; then backup_file /etc/shorewall/maclist else run_install -o $OWNER -g $GROUP -m 0600 maclist ${PREFIX}/etc/shorewall/maclist echo echo "MAC list file installed as ${PREFIX}/etc/shorewall/maclist" fi # # Install the Masq file # if [ -f ${PREFIX}/etc/shorewall/masq ]; then backup_file /etc/shorewall/masq else run_install -o $OWNER -g $GROUP -m 0600 masq ${PREFIX}/etc/shorewall/masq echo echo "Masquerade file installed as ${PREFIX}/etc/shorewall/masq" fi # # Install the Modules file # if [ -f ${PREFIX}/etc/shorewall/modules ]; then backup_file /etc/shorewall/modules else run_install -o $OWNER -g $GROUP -m 0600 modules ${PREFIX}/etc/shorewall/modules echo echo "Modules file installed as ${PREFIX}/etc/shorewall/modules" fi # # Install the TC Rules file # if [ -f ${PREFIX}/etc/shorewall/tcrules ]; then backup_file /etc/shorewall/tcrules else run_install -o $OWNER -g $GROUP -m 0600 tcrules ${PREFIX}/etc/shorewall/tcrules echo echo "TC Rules file installed as ${PREFIX}/etc/shorewall/tcrules" fi # # Install the TOS file # if [ -f ${PREFIX}/etc/shorewall/tos ]; then backup_file /etc/shorewall/tos else run_install -o $OWNER -g $GROUP -m 0600 tos ${PREFIX}/etc/shorewall/tos echo echo "TOS file installed as ${PREFIX}/etc/shorewall/tos" fi # # Install the Tunnels file # if [ -f ${PREFIX}/etc/shorewall/tunnels ]; then backup_file /etc/shorewall/tunnels else run_install -o $OWNER -g $GROUP -m 0600 tunnels ${PREFIX}/etc/shorewall/tunnels echo echo "Tunnels file installed as ${PREFIX}/etc/shorewall/tunnels" fi # # Install the blacklist file # if [ -f ${PREFIX}/etc/shorewall/blacklist ]; then backup_file /etc/shorewall/blacklist else run_install -o $OWNER -g $GROUP -m 0600 blacklist ${PREFIX}/etc/shorewall/blacklist echo echo "Blacklist file installed as ${PREFIX}/etc/shorewall/blacklist" fi # # Backup and remove the whitelist file # if [ -f ${PREFIX}/etc/shorewall/whitelist ]; then backup_file /etc/shorewall/whitelist rm -f ${PREFIX}/etc/shorewall/whitelist fi # # Install the rfc1918 file # if [ -f ${PREFIX}/etc/shorewall/rfc1918 ]; then backup_file /etc/shorewall/rfc1918 else run_install -o $OWNER -g $GROUP -m 0600 rfc1918 ${PREFIX}/etc/shorewall/rfc1918 echo echo "RFC 1918 file installed as ${PREFIX}/etc/shorewall/rfc1918" fi # # Install the init file # if [ -f ${PREFIX}/etc/shorewall/init ]; then backup_file /etc/shorewall/init else run_install -o $OWNER -g $GROUP -m 0600 init ${PREFIX}/etc/shorewall/init echo echo "Init file installed as ${PREFIX}/etc/shorewall/init" fi # # Install the start file # if [ -f ${PREFIX}/etc/shorewall/start ]; then backup_file /etc/shorewall/start else run_install -o $OWNER -g $GROUP -m 0600 start ${PREFIX}/etc/shorewall/start echo echo "Start file installed as ${PREFIX}/etc/shorewall/start" fi # # Install the stop file # if [ -f ${PREFIX}/etc/shorewall/stop ]; then backup_file /etc/shorewall/stop else run_install -o $OWNER -g $GROUP -m 0600 stop ${PREFIX}/etc/shorewall/stop echo echo "Stop file installed as ${PREFIX}/etc/shorewall/stop" fi # # Install the stopped file # if [ -f ${PREFIX}/etc/shorewall/stopped ]; then backup_file /etc/shorewall/stopped else run_install -o $OWNER -g $GROUP -m 0600 stopped ${PREFIX}/etc/shorewall/stopped echo echo "Stopped file installed as ${PREFIX}/etc/shorewall/stopped" fi # # Install the ECN file # if [ -f ${PREFIX}/etc/shorewall/ecn ]; then backup_file /etc/shorewall/ecn else run_install -o $OWNER -g $GROUP -m 0600 ecn ${PREFIX}/etc/shorewall/ecn echo echo "ECN file installed as ${PREFIX}/etc/shorewall/ecn" fi # # Install the Accounting file # if [ -f ${PREFIX}/etc/shorewall/accounting ]; then backup_file /etc/shorewall/accounting else run_install -o $OWNER -g $GROUP -m 0600 accounting ${PREFIX}/etc/shorewall/accounting echo echo "Accounting file installed as ${PREFIX}/etc/shorewall/accounting" fi # # Install the User Sets file # if [ -f ${PREFIX}/etc/shorewall/usersets ]; then backup_file /etc/shorewall/usersets else run_install -o $OWNER -g $GROUP -m 0600 usersets ${PREFIX}/etc/shorewall/usersets echo echo "User Sets file installed as ${PREFIX}/etc/shorewall/usersets" fi # # Install the User file # if [ -f ${PREFIX}/etc/shorewall/users ]; then backup_file /etc/shorewall/users else run_install -o $OWNER -g $GROUP -m 0600 users ${PREFIX}/etc/shorewall/users echo echo "Users file installed as ${PREFIX}/etc/shorewall/users" fi # # Backup the version file # if [ -z "$PREFIX" ]; then if [ -f /usr/share/shorewall/version ]; then backup_file /usr/share/shorewall/version elif [ -f /usr/lib/shorewall/version ]; then backup_file /usr/lib/shorewall/version elif [ -n "$oldversion" ]; then echo $oldversion > /usr/lib/shorewall/version-${VERSION}.bkout else echo "Unknown" > /usr/lib/shorewall/version-${VERSION}.bkout fi fi # # Create the version file # echo "$VERSION" > ${PREFIX}/usr/share/shorewall/version chmod 644 ${PREFIX}/usr/share/shorewall/version # # Remove and create the symbolic link to the init script # if [ -z "$PREFIX" ]; then rm -f /etc/shorewall/firewall rm -f /var/lib/shorewall/firewall [ -L /usr/lib/shorewall/firewall ] && \ mv -f /usr/lib/shorewall/firewall /usr/lib/shorewall/firewall-${VERSION}.bkout rm -f /usr/lib/shorewall/init rm -f /usr/share/shorewall/init ln -s ${DEST}/${FIREWALL} /usr/share/shorewall/init fi # # Install the firewall script # install_file_with_backup firewall ${PREFIX}/usr/share/shorewall/firewall 0544 if [ -z "$PREFIX" -a -n "$first_install" ]; then if [ -x /sbin/insserv -o -x /usr/sbin/insserv ]; then if insserv /etc/init.d/shorewall ; then echo echo "Firewall will start automatically at boot" else cant_autostart fi elif [ -x /sbin/chkconfig -o -x /usr/sbin/chkconfig ]; then if chkconfig --add $FIREWALL ; then echo echo "Firewall will start automatically in run levels as follows:" chkconfig --list $FIREWALL else cant_autostart fi elif [ -x /sbin/rc-update ]; then if rc-update add shorewall default; then echo echo "Firewall will start automatically at boot" else cant_autostart fi else modify_rclocal fi echo \ "######################################################################## # REMOVE THIS FILE AFTER YOU HAVE CONFIGURED SHOREWALL # ########################################################################" > /etc/shorewall/startup_disabled fi # # Report Success # echo echo "Shorewall Version $VERSION Installed"