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shorewall_code/Shorewall/shorewall

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#!/bin/sh
#
# Shorewall Packet Filtering Firewall Control Program - V3.4
#
# This program is under GPL [http://www.gnu.org/copyleft/gpl.htm]
#
# (c) 1999,2000,2001,2002,2003,2004,2005,2006,2007 - Tom Eastep (teastep@shorewall.net)
#
# This file should be placed in /sbin/shorewall.
#
# Shorewall documentation is available at http://www.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., 675 Mass Ave, Cambridge, MA 02139, USA
#
# If an error occurs while starting or restarting the firewall, the
# firewall is automatically stopped.
#
# The firewall uses configuration files in /etc/shorewall/ - skeleton
# files is included with the firewall.
#
# Commands are:
#
# shorewall add <iface>[:<host>] zone Adds a host or subnet to a zone
# shorewall delete <iface>[:<host>] zone Deletes a host or subnet from a zone
# shorewall dump Dumps all Shorewall-related information
# for problem analysis
# shorewall start Starts the firewall
# shorewall restart Restarts the firewall
# shorewall stop Stops the firewall
# shorewall status Displays firewall status
# shorewall reset Resets iptables packet and
# byte counts
# shorewall clear Open the floodgates by
# removing all iptables rules
# and setting the three permanent
# chain policies to ACCEPT
# shorewall refresh Rebuild the common chain to
# compensate for a change of
# broadcast address on any "detect"
# interface.
# shorewall [re]load [ <directory> ] <system>
# Compile a script and install it on a
# remote Shorewall Lite system.
# shorewall show <chain> [ <chain> ... ] Display the rules in each <chain> listed
# shorewall show actions Displays the available actions
# shorewall show log Print the last 20 log messages
# shorewall show connections Show the kernel's connection
# tracking table
# shorewall show nat Display the rules in the nat table
# shorewall show {mangle|tos} Display the rules in the mangle table
# shorewall show tc Display traffic control info
# shorewall show classifiers Display classifiers
# shorewall show capabilities Display iptables/kernel capabilities
# shorewall version Display the installed version id
# shorewall check [ -e ] [ <directory> ] Dry-run compilation.
# shorewall try <directory> [ <timeout> ] Try a new configuration and if
# it doesn't work, revert to the
# standard one. If a timeout is supplied
# the command reverts back to the
# standard configuration after that many
# seconds have elapsed after successfully
# starting the new configuration.
# shorewall logwatch [ refresh-interval ] Monitor the local log for Shorewall
# messages.
# shorewall drop <address> ... Temporarily drop all packets from the
# listed address(es)
# shorewall reject <address> ... Temporarily reject all packets from the
# listed address(es)
# shorewall allow <address> ... Reenable address(es) previously
# disabled with "drop" or "reject"
# shorewall save [ <file> ] Save the list of "rejected" and
# "dropped" addresses so that it will
# be automatically reinstated the
# next time that Shorewall starts.
# Save the current state so that 'shorewall
# restore' can be used.
#
# shorewall forget [ <file> ] Discard the data saved by 'shorewall save'
#
# shorewall restore [ <file> ] Restore the state of the firewall from
# previously saved information.
#
# shorewall ipaddr { <address>/<cidr> | <address> <netmask> }
#
# Displays information about the network
# defined by the argument[s]
#
# shorewall iprange <address>-<address> Decomposes a range of IP addresses into
# a list of network/host addresses.
#
# shorewall ipdecimal { <address> | <integer> }
#
# Displays the decimal equivalent of an IP
# address and vice versa.
#
# shorewall safe-start [ <directory> ] Starts the firewall and promtp for a c
# confirmation to accept or reject the new
# configuration
#
# shorewall safe-restart [ <directory> ] Restarts the firewall and prompt for a
# confirmation to accept or reject the new
# configuration
#
# shorewall compile [ -e ] [ <directory> ] <filename>
# Compile a firewall program file.
#
# Set the configuration variables from shorewall.conf
#
get_config() {
if [ -z "$EXPORT" -a "$(id -u)" = 0 ]; then
#
# This block is avoided for compile for export and when the user isn't root
#
export CONFIG_PATH
[ -z "$LOGFILE" ] && LOGFILE=/var/log/messages
if [ -n "$(syslog_circular_buffer)" ]; then
LOGREAD="logread"
elif [ -f $LOGFILE ]; then
LOGREAD="cat $LOGFILE"
else
echo "LOGFILE ($LOGFILE) does not exist!" >&2
exit 2
fi
if [ -n "$IPTABLES" ]; then
if [ ! -x "$IPTABLES" ]; then
echo " ERROR: The program specified in IPTABLES does not exist or is not executable" >&2
exit 2
fi
else
IPTABLES=$(mywhich iptables 2> /dev/null)
if [ -z "$IPTABLES" ] ; then
echo " ERROR: Can't find iptables executable" >&2
exit 2
fi
fi
export IPTABLES
#
# See if we have a real version of "tail" -- use separate redirection so
# that ash (aka /bin/sh on LRP) doesn't crap
#
if ( tail -n5 /dev/null > /dev/null 2> /dev/null ) ; then
realtail="Yes"
else
realtail=""
fi
#
# Compile by non-root needs no restore file
#
[ -n "$RESTOREFILE" ] || RESTOREFILE=restore
validate_restorefile RESTOREFILE
export RESTOREFILE
case $STARTUP_ENABLED in
No|no|NO)
echo " WARNING: Shorewall startup is disabled. To enable startup, set STARTUP_ENABLED=Yes in ${CONFDIR}/shorewall.conf" >&2
STARTUP_ENABLED=
;;
Yes|yes|YES)
;;
*)
if [ -n "$STARTUP_ENABLED" ]; then
echo " ERROR: Invalid Value for STARTUP_ENABLE: $STARTUP_ENABLED" >&2
exit 2
fi
;;
esac
case ${TC_ENABLED:=Internal} in
No|NO|no)
TC_ENABLED=
;;
esac
[ -n "LOGFORMAT" ] && LOGFORMAT="${LOGFORMAT%%%*}"
[ -n "$LOGFORMAT" ] || LOGFORMAT="Shorewall:"
export LOGFORMAT
fi
if [ -n "$SHOREWALL_SHELL" ]; then
if [ ! -x "$SHOREWALL_SHELL" ]; then
echo " ERROR: The program specified in SHOREWALL_SHELL does not exist or is not executable" >&2
exit 2
fi
fi
[ -n "${VERBOSITY:=2}" ]
VERBOSE=$(($VERBOSE_OFFSET + $VERBOSITY))
export VERBOSE
[ -n "${HOSTNAME:=$(hostname)}" ]
case "$EXPERIMENTAL" in
yes|Yes)
;;
*)
EXPERIMENTAL=
;;
esac
export EXPERIMENTAL;
}
#
# Start Command Executor
#
start_command() {
local finished=0
do_it() {
local rc=0
[ -n "$nolock" ] || mutex_on
progress_message3 "Compiling..."
if $SHOREWALL_SHELL ${SHAREDIR}/compiler $debugging $nolock compile ${VARDIR}/.start; then
${VARDIR}/.start $debugging start
rc=$?
else
rc=$?
logger -p kern.err "ERROR:Shorewall start failed"
fi
[ -n "$nolock" ] || mutex_off
exit $rc
}
if shorewall_is_started; then
error_message "Shorewall is already running"
exit 0
fi
if [ -z "$STARTUP_ENABLED" ]; then
error_message "ERROR: Startup is disabled"
exit 2
fi
while [ $finished -eq 0 -a $# -gt 0 ]; do
option=$1
case $option in
-*)
option=${option#-}
while [ -n "$option" ]; do
case $option in
-)
finished=1
option=
;;
f*)
FAST=Yes
option=${option#f}
;;
*)
usage 1
;;
esac
done
shift
;;
*)
finished=1
;;
esac
done
case $# in
0)
;;
1)
[ -n "$SHOREWALL_DIR" -o -n "$FAST" ] && usage 2
if [ ! -d $1 ]; then
if [ -e $1 ]; then
echo "$1 is not a directory" >&2 && exit 2
else
echo "Directory $1 does not exist" >&2 && exit 2
fi
fi
SHOREWALL_DIR=$(resolve_file $1)
export SHOREWALL_DIR
;;
*)
usage 1
;;
esac
export NOROUTES
if [ -n "$FAST" ]; then
if qt mywhich make; then
#
# RESTOREFILE is exported by get_config()
#
make -qf ${CONFDIR}/Makefile || FAST=
fi
if [ -n "$FAST" ]; then
RESTOREPATH=${VARDIR}/$RESTOREFILE
if [ -x $RESTOREPATH ]; then
if [ -x ${RESTOREPATH}-ipsets ]; then
echo Restoring Ipsets...
#
# We must purge iptables to be sure that there are no
# references to ipsets
#
iptables -F
iptables -X
$SHOREWALL_SHELL ${RESTOREPATH}-ipsets
fi
echo Restoring Shorewall...
$SHOREWALL_SHELL $RESTOREPATH restore
date > ${VARDIR}/restarted
progress_message3 Shorewall restored from $RESTOREPATH
else
do_it
fi
else
do_it
fi
else
do_it
fi
}
#
# Compile Command Executor
#
compile_command() {
local finished=0
while [ $finished -eq 0 ]; do
[ $# -eq 0 ] && usage 1
option=$1
case $option in
-*)
shift
option=${option#-}
[ -z "$option" ] && usage 1
while [ -n "$option" ]; do
case $option in
e*)
EXPORT=Yes
option=${option#e}
;;
p*)
export PROFILE=Yes
option=${option#p}
;;
d*)
export DEBUG=Yes;
option=${option#d}
;;
-)
finished=1
option=
;;
*)
usage 1
;;
esac
done
;;
*)
finished=1
;;
esac
done
file=
case $# in
1)
file=$1
;;
2)
[ -n "$SHOREWALL_DIR" ] && usage 2
if [ ! -d $1 ]; then
if [ -e $1 ]; then
echo "$1 is not a directory" >&2 && exit 2
else
echo "Directory $1 does not exist" >&2 && exit 2
fi
fi
SHOREWALL_DIR=$(resolve_file $1)
export SHOREWALL_DIR
file=$2
;;
*)
usage 1
;;
esac
export EXPORT
progress_message3 "Compiling..."
exec $SHOREWALL_SHELL ${SHAREDIR}/compiler $debugging compile $file
}
#
# Check Command Executor
#
check_command() {
local finished=0
while [ $finished -eq 0 -a $# -gt 0 ]; do
option=$1
case $option in
-*)
option=${option#-}
while [ -n "$option" ]; do
case $option in
-)
finished=1
option=
;;
e*)
EXPORT=Yes
option=${option#e}
;;
*)
usage 1
;;
esac
done
shift
;;
*)
finished=1
;;
esac
done
case $# in
0)
;;
1)
[ -n "$SHOREWALL_DIR" ] && usage 2
if [ ! -d $1 ]; then
if [ -e $1 ]; then
echo "$1 is not a directory" >&2 && exit 2
else
echo "Directory $1 does not exist" >&2 && exit 2
fi
fi
SHOREWALL_DIR=$(resolve_file $1)
export SHOREWALL_DIR
;;
*)
usage 1
;;
esac
export EXPORT
progress_message3 "Checking..."
exec $SHOREWALL_SHELL ${SHAREDIR}/compiler $debugging $nolock check
}
#
# Restart Command Executor
#
restart_command() {
local finished=0 rc=0
while [ $finished -eq 0 -a $# -gt 0 ]; do
option=$1
case $option in
-*)
option=${option#-}
while [ -n "$option" ]; do
case $option in
-)
finished=1
option=
;;
n*)
NOROUTES=Yes
option=${option#n}
;;
*)
usage 1
;;
esac
done
shift
;;
*)
finished=1
;;
esac
done
case $# in
0)
;;
1)
[ -n "$SHOREWALL_DIR" ] && usage 2
if [ ! -d $1 ]; then
if [ -e $1 ]; then
echo "$1 is not a directory" >&2 && exit 2
else
echo "Directory $1 does not exist" >&2 && exit 2
fi
fi
SHOREWALL_DIR=$(resolve_file $1)
export SHOREWALL_DIR
;;
*)
usage 1
;;
esac
if [ -z "$STARTUP_ENABLED" ]; then
error_message "ERROR: Startup is disabled"
exit 2
fi
export NOROUTES
[ -n "$nolock" ] || mutex_on
progress_message3 "Compiling..."
if $SHOREWALL_SHELL ${SHAREDIR}/compiler $debugging $nolock compile ${VARDIR}/.restart; then
$SHOREWALL_SHELL ${VARDIR}/.restart $debugging restart
rc=$?
else
rc=$?
logger -p kern.err "ERROR:Shorewall restart failed"
fi
[ -n "$nolock" ] || mutex_off
return $rc
}
#
# Refresh Command Executor
#
refresh_command() {
local finished=0
while [ $finished -eq 0 -a $# -gt 0 ]; do
option=$1
case $option in
-*)
option=${option#-}
while [ -n "$option" ]; do
case $option in
-)
finished=1
option=
;;
*)
usage 1
;;
esac
done
shift
;;
*)
finished=1
;;
esac
done
case $# in
0)
;;
*)
usage 1
;;
esac
if ! shorewall_is_started ; then
error_message "ERROR: Shorewall is not running"
exit 2
fi
if [ -z "$STARTUP_ENABLED" ]; then
error_message "ERROR: Startup is disabled"
exit 2
fi
export NOROUTES
[ -n "$nolock" ] || mutex_on
progress_message3 "Compiling..."
if $SHOREWALL_SHELL ${SHAREDIR}/compiler $debugging $nolock compile ${VARDIR}/.refresh; then
$SHOREWALL_SHELL ${VARDIR}/.refresh $debugging refresh
fi
rc=$?
[ -n "$nolock" ] || mutex_off
return $rc
}
#
# Safe-start/safe-restart Command Executor
#
safe_commands() {
local finished=0
# test is the shell supports timed read
read -t 0 junk 2> /dev/null
if [ $? -eq 2 -a ! -x /bin/bash ];then
echo "Your shell does not support a feature required to execute this command".
exit 2
fi
while [ $finished -eq 0 -a $# -gt 0 ]; do
option=$1
case $option in
-*)
option=${option#-}
while [ -n "$option" ]; do
case $option in
-)
finished=1
option=
;;
n*)
NOROUTES=Yes
option=${option#n}
;;
*)
usage 1
;;
esac
done
shift
;;
*)
finished=1
;;
esac
done
case $# in
0)
;;
1)
[ -n "$SHOREWALL_DIR" ] && usage 2
if [ ! -d $1 ]; then
if [ -e $1 ]; then
echo "$1 is not a directory" >&2 && exit 2
else
echo "Directory $1 does not exist" >&2 && exit 2
fi
fi
SHOREWALL_DIR=$(resolve_file $1)
export SHOREWALL_DIR
;;
*)
usage 1
;;
esac
if [ -z "$STARTUP_ENABLED" ]; then
error_message "ERROR: Startup is disabled"
exit 2
fi
mutex_on
if shorewall_is_started; then
running=Yes
else
running=
fi
if [ "$COMMAND" = "safe-start" -a -n "$running" ]; then
# the command is safe-start but the firewall is already running
error_message "Shorewall is already started"
mutex_off
exit 0
fi
if [ "$COMMAND" = "safe-start" -o -z "$running" ]; then
# the command is safe-start or shorewall is not started yet
command="start"
else
# the command is safe-restart and the firewall is already running
command="restart"
fi
progress_message3 "Compiling..."
if ! $SHOREWALL_SHELL ${SHAREDIR}/compiler $debugging nolock compile ${VARDIR}/.$command; then
status=$?
mutex_off
exit $status
fi
case $command in
start)
export RESTOREFILE=NONE
progress_message3 "Starting..."
;;
restart)
export RESTOREFILE=.safe
RESTOREPATH=${VARDIR}/.safe
save_config
progress_message3 "Restarting..."
;;
esac
if ${VARDIR}/.$command $command; then
echo -n "Do you want to accept the new firewall configuration? [y/n] "
if read_yesno_with_timeout; then
echo "New configuration has been accepted"
else
if [ "$command" = "restart" ]; then
${VARDIR}/.safe restore
else
${VARDIR}/.$command clear
fi
mutex_off
echo "New configuration has been rejected and the old one restored"
exit 2
fi
fi
mutex_off
}
#
# 'try' Command Executor
#
try_command() {
local finished=0 timeout=
handle_directory() {
[ -n "$SHOREWALL_DIR" ] && usage 2
if [ ! -d $1 ]; then
if [ -e $1 ]; then
echo "$1 is not a directory" >&2 && exit 2
else
echo "Directory $1 does not exist" >&2 && exit 2
fi
fi
SHOREWALL_DIR=$(resolve_file $1)
export SHOREWALL_DIR
}
while [ $finished -eq 0 -a $# -gt 0 ]; do
option=$1
case $option in
-*)
option=${option#-}
while [ -n "$option" ]; do
case $option in
-)
finished=1
option=
;;
n*)
NOROUTES=Yes
option=${option#n}
;;
*)
usage 1
;;
esac
done
shift
;;
*)
finished=1
;;
esac
done
case $# in
0)
usage 1
;;
1)
handle_directory $1
;;
2)
handle_directory $1
timeout=$2
;;
*)
usage 1
;;
esac
if [ -z "$STARTUP_ENABLED" ]; then
error_message "ERROR: Startup is disabled"
exit 2
fi
mutex_on
if shorewall_is_started; then
running=Yes
else
running=
fi
if [ -z "$running" ]; then
# shorewall is not started yet
command="start"
else
# the firewall is already running
command="restart"
fi
progress_message3 "Compiling..."
if ! $SHOREWALL_SHELL ${SHAREDIR}/compiler $debugging nolock compile ${VARDIR}/.$command; then
status=$?
mutex_off
exit $status
fi
case $command in
start)
export RESTOREFILE=NONE
progress_message3 "Starting..."
;;
restart)
export RESTOREFILE=.try
RESTOREPATH=${VARDIR}/.try
save_config
progress_message3 "Restarting..."
;;
esac
if ${VARDIR}/.$command $command && [ -n "$timeout" ]; then
sleep $timeout
if [ "$command" = "restart" ]; then
${VARDIR}/.try restore
else
${VARDIR}/.$command clear
fi
fi
mutex_off
return 0
}
#
# [Re]load command executor
#
reload_command() # $* = original arguments less the command.
{
local verbose=$(make_verbose) file= capabilities= finished=0 saveit= result directory system getcaps= root=root
[ -n "$LITEDIR" ] || fatal_error "ERROR: LITEDIR not defined in ${SHAREDIR}/configpath"
while [ $finished -eq 0 -a $# -gt 0 ]; do
option=$1
case $option in
-*)
option=${option#-}
while [ -n "$option" ]; do
case $option in
-)
finished=1
option=
;;
s*)
saveit=Yes
option=${option#s}
;;
c*)
getcaps=Yes
option=${option#c}
;;
r)
[ $# -gt 1 ] || fatal_error "Missing Root User name"
root=$2
option=
shift
;;
*)
usage 1
;;
esac
done
shift
;;
*)
finished=1
;;
esac
done
case $# in
1)
directory="."
system=$1
;;
2)
directory=$1
system=$2
;;
*)
usage 1
;;
esac
litedir=$(ssh ${root}@${system} /sbin/shorewall-lite show config 2> /dev/null | grep ^LITEDIR | sed 's/LITEDIR is //')
[ -n "$litedir" ] && LITEDIR=$litedir
if [ -z "$getcaps" ]; then
SHOREWALL_DIR=$(resolve_file $directory)
capabilities=$(find_file capabilities)
[ -f $capabilities ] || getcaps=Yes
fi
if [ -n "$getcaps" ]; then
if [ -f $directory/shorewall.conf ]; then
MODULESDIR=$(grep '^\s*MODULESDIR=' $directory/shorewall.conf | tail -n 1)
MODULESDIR=${MODULESDIR#*=}
IPTABLES=$(grep '^\s*IPTABLES=' $directory/shorewall.conf | tail -n 1)
IPTABLES=${IPTABLES#*=}
fi
progress_message "Getting Capabilities on system $system..."
if ! ssh ${root}@${system} "MODULESDIR=$MODULESDIR IPTABLES=$IPTABLES /usr/share/shorewall-lite/shorecap > ${LITEDIR}/capabilities" || \
! scp ${root}@$system:${LITEDIR}/capabilities $directory; then
fatal_error "ERROR: Capturing capabilities on system $system failed"
fi
fi
file=$(resolve_file $directory/firewall)
if shorewall $debugging $verbose compile -e $directory $directory/firewall && \
progress_message "Copying $file and ${file}.conf to ${system}:${LITEDIR}..." && \
scp $directory/firewall $directory/firewall.conf ${root}@${system}:${LITEDIR}
then
echo "Copy complete"
if [ $COMMAND = reload ]; then
ssh ${root}@${system} "/sbin/shorewall-lite $debugging $verbose restart" && \
progress_message3 "System $system reloaded" || saveit=
else
ssh ${root}@${system} "/sbin/shorewall-lite $debugging $verbose restart" && \
progress_message3 "System $system reloaded" || saveit=
fi
if [ -n "$saveit" ]; then
ssh ${root}@${system} "/sbin/shorewall-lite $debugging $verbose save" && \
progress_message3 "Configuration on system $system saved"
fi
fi
}
#
# Export command executor
#
export_command() # $* = original arguments less the command.
{
local verbose=$(make_verbose) file= finished=0 directory target
while [ $finished -eq 0 -a $# -gt 0 ]; do
option=$1
case $option in
-*)
option=${option#-}
while [ -n "$option" ]; do
case $option in
-)
finished=1
option=
;;
*)
fatal_error "Unrecognized option \"$option\""
;;
esac
done
shift
;;
*)
finished=1
;;
esac
done
case $# in
1)
directory="."
target=$1
;;
2)
directory=$1
target=$2
;;
*)
fatal_error "ERROR: Invalid command syntax (\"man shorewall\" for help)"
;;
esac
case $target in
*:*)
;;
*)
target=$target:
;;
esac
file=$(resolve_file $directory/firewall)
if shorewall $debugging $verbose compile -e $directory $directory/firewall && \
echo "Copying $file and ${file}.conf to ${target#*@}..." && \
scp $directory/firewall $directory/firewall.conf $target
then
progress_message3 "Copy complete"
fi
}
#
# Give Usage Information
#
usage() # $1 = exit status
{
echo "Usage: $(basename $0) [debug|trace] [nolock] [ -q ] [ -v ] [ -t ] <command>"
echo "where <command> is one of:"
echo " add <interface>[:<host-list>] ... <zone>"
echo " allow <address> ..."
echo " check [ -e ] [ <directory> ]"
echo " clear"
echo " compile [ -e ] [ <directory name> ] <path name>"
echo " delete <interface>[:<host-list>] ... <zone>"
echo " drop <address> ..."
echo " dump [ -x ]"
echo " export [ <directory1> ] [<user>@]<system>[:<directory2>]"
echo " forget [ <file name> ]"
echo " help"
echo " hits"
echo " ipcalc { <address>/<vlsm> | <address> <netmask> }"
echo " ipdecimal { <address> | <integer> }"
echo " iprange <address>-<address>"
echo " load [ -s ] [ -c ] [ -r <root user> ] [ <directory> ] <system>"
echo " logdrop <address> ..."
echo " logreject <address> ..."
echo " logwatch [<refresh interval>]"
echo " refresh"
echo " reject <address> ..."
echo " reload [ -s ] [ -c ] [ -r <root user> ] [ <directory> ] <system>"
echo " reset"
echo " restart [ -n ] [ <directory> ]"
echo " restore [ -n ] [ <file name> ]"
echo " save [ <file name> ]"
echo " show [ -x ] [ -m ] [-f] [ -t {filter|mangle|nat} ] [<chain> [ <chain> ... ]|actions|capabilities|classifiers|config|connections|ip|log|macros|mangle|nat|routing|tc|zones]"
echo " start [ -f ] [ -n ] [ <directory> ]"
echo " stop"
echo " status"
echo " try <directory> [ <timeout> ]"
echo " version"
echo " safe-start [ <directory> ]"
echo " safe-restart [ <directory> ]"
echo
exit $1
}
#
# Execution begins here
#
debugging=
if [ $# -gt 0 ] && [ "x$1" = "xdebug" -o "x$1" = "xtrace" ]; then
debugging=debug
shift
fi
nolock=
if [ $# -gt 0 ] && [ "$1" = "nolock" ]; then
nolock=nolock
shift
fi
SHOREWALL_DIR=
IPT_OPTIONS="-nv"
FAST=
VERBOSE_OFFSET=0
NOROUTES=
EXPORT=
export TIMESTAMP=
noroutes=
finished=0
while [ $finished -eq 0 ]; do
[ $# -eq 0 ] && usage 1
option=$1
case $option in
-)
finished=1
;;
-*)
option=${option#-}
while [ -n "$option" ]; do
case $option in
c)
[ $# -eq 1 ] && usage 1
if [ ! -d $2 ]; then
if [ -e $2 ]; then
echo "$2 is not a directory" >&2 && exit 2
else
echo "Directory $2 does not exist" >&2 && exit 2
fi
fi
SHOREWALL_DIR=$(resolve_file $2)
option=
shift
;;
e*)
EXPORT=Yes
option=${option#e}
;;
x*)
IPT_OPTIONS="-xnv"
option=${option#x}
;;
q*)
VERBOSE_OFFSET=$(($VERBOSE_OFFSET - 1 ))
option=${option#q}
;;
f*)
FAST=Yes
option=${option#f}
;;
v*)
VERBOSE_OFFSET=$(($VERBOSE_OFFSET + 1 ))
option=${option#v}
;;
n*)
NOROUTES=Yes
option=${option#n}
;;
t*)
TIMESTAMP=Yes
option=${option#t}
;;
-)
finished=1
option=
;;
*)
usage 1
;;
esac
done
shift
;;
*)
finished=1
;;
esac
done
if [ $# -eq 0 ]; then
usage 1
fi
[ -n "$SHOREWALL_DIR" ] && export SHOREWALL_DIR
PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/bin:/usr/local/sbin
MUTEX_TIMEOUT=
SHAREDIR=/usr/share/shorewall
VARDIR=/var/lib/shorewall
CONFDIR=/etc/shorewall
export PRODUCT="Shorewall"
FIREWALL=$SHAREDIR/firewall
LIBRARIES="$SHAREDIR/lib.base $SHAREDIR/lib.cli"
VERSION_FILE=$SHAREDIR/version
HELP=$SHAREDIR/help
for library in $LIBRARIES; do
if [ -f $library ]; then
. $library
else
echo "$library does not exist!" >&2
exit 2
fi
done
ensure_config_path
config=$(find_file shorewall.conf)
if [ -f $config ]; then
if [ -r $config ]; then
. $config
else
echo "Cannot read $config! (Hint: Are you root?)" >&2
exit 1
fi
else
echo "$config does not exist!" >&2
exit 2
fi
ensure_config_path
get_config
if [ ! -f $FIREWALL ]; then
echo " ERROR: Shorewall is not properly installed" >&2
if [ -L $FIREWALL ]; then
echo " $FIREWALL is a symbolic link to a" >&2
echo " non-existant file" >&2
else
echo " The file $FIREWALL does not exist" >&2
fi
exit 2
fi
if [ -f $VERSION_FILE ]; then
version=$(cat $VERSION_FILE)
else
echo " ERROR: Shorewall is not properly installed" >&2
echo " The file $VERSION_FILE does not exist" >&2
exit 1
fi
banner="Shorewall-$version Status at $HOSTNAME -"
case $(echo -e) in
-e*)
RING_BELL="echo \a"
;;
*)
RING_BELL="echo -e \a"
;;
esac
case $(echo -n "Testing") in
-n*)
ECHO_N=
;;
*)
ECHO_N=-n
;;
esac
COMMAND=$1
case "$COMMAND" in
start)
shift
start_command $@
;;
stop|reset|clear)
[ $# -ne 1 ] && usage 1
export NOROUTES
exec $SHOREWALL_SHELL $FIREWALL $debugging $nolock $COMMAND
;;
compile)
shift
compile_command $@
;;
restart)
shift
restart_command $@
;;
refresh)
shift
refresh_command $@
;;
check)
shift
check_command $@
;;
add|delete)
[ $# -lt 3 ] && usage 1
exec $SHOREWALL_SHELL $FIREWALL $debugging $nolock $@
;;
show|list)
shift
show_command $@
;;
load|reload)
shift
reload_command $@
;;
export)
shift
export_command $@
;;
status)
[ $# -eq 1 ] || usage 1
echo "Shorewall-$version Status at $HOSTNAME - $(date)"
echo
if shorewall_is_started ; then
echo "Shorewall is running"
status=0
else
echo "Shorewall is stopped"
status=4
fi
if [ -f ${VARDIR}/state ]; then
state="$(cat ${VARDIR}/state)"
case $state in
Stopped*|Clear*)
status=3
;;
esac
else
state=Unknown
fi
echo "State:$state"
echo
exit $status
;;
dump)
shift
dump_command $@
;;
hits)
[ -n "$debugging" ] && set -x
[ $# -eq 1 ] || usage 1
hits_command
;;
version)
echo $version
;;
try)
shift
try_command $@
;;
logwatch)
logwatch_command $@
;;
drop)
[ -n "$debugging" ] && set -x
[ $# -eq 1 ] && usage 1
if shorewall_is_started ; then
mutex_on
block DROP Dropped $*
mutex_off
else
error_message "ERROR: Shorewall is not started"
exit 2
fi
;;
logdrop)
[ -n "$debugging" ] && set -x
[ $# -eq 1 ] && usage 1
if shorewall_is_started ; then
mutex_on
block logdrop Dropped $*
mutex_off
else
error_message "ERROR: Shorewall is not started"
exit 2
fi
;;
reject|logreject)
[ -n "$debugging" ] && set -x
[ $# -eq 1 ] && usage 1
if shorewall_is_started ; then
mutex_on
block $COMMAND Rejected $*
mutex_off
else
error_message "ERROR: Shorewall is not started"
exit 2
fi
;;
allow)
allow_command $@
;;
save)
[ -n "$debugging" ] && set -x
case $# in
1)
;;
2)
RESTOREFILE="$2"
validate_restorefile '<restore file>'
;;
*)
usage 1
;;
esac
RESTOREPATH=${VARDIR}/$RESTOREFILE
mutex_off
[ "$nolock" ] || mutex_on
save_config
[ "$nolock" ] || mutex_off
;;
forget)
case $# in
1)
;;
2)
RESTOREFILE="$2"
validate_restorefile '<restore file>'
;;
*)
usage 1
;;
esac
RESTOREPATH=${VARDIR}/$RESTOREFILE
if [ -x $RESTOREPATH ]; then
if [ -x ${RESTOREPATH}-ipsets ]; then
rm -f ${RESTOREPATH}-ipsets
echo " ${RESTOREPATH}-ipsets removed"
fi
rm -f $RESTOREPATH
rm -f ${RESTOREPATH}-iptables
echo " $RESTOREPATH removed"
elif [ -f $RESTOREPATH ]; then
echo " $RESTOREPATH exists and is not a saved Shorewall configuration"
fi
rm -f ${VARDIR}/save
;;
ipcalc)
[ -n "$debugging" ] && set -x
if [ $# -eq 2 ]; then
address=${2%/*}
vlsm=${2#*/}
elif [ $# -eq 3 ]; then
address=$2
vlsm=$(ip_vlsm $3)
else
usage 1
fi
valid_address $address || fatal_error "Invalid IP address: $address"
[ -z "$vlsm" ] && exit 2
[ "x$address" = "x$vlsm" ] && usage 2
[ $vlsm -gt 32 ] && echo "Invalid VLSM: /$vlsm" >&2 && exit 2
address=$address/$vlsm
echo " CIDR=$address"
temp=$(ip_netmask $address); echo " NETMASK=$(encodeaddr $temp)"
temp=$(ip_network $address); echo " NETWORK=$temp"
temp=$(broadcastaddress $address); echo " BROADCAST=$temp"
;;
iprange)
[ -n "$debugging" ] && set -x
case $2 in
*.*.*.*-*.*.*.*)
for address in ${2%-*} ${2#*-}; do
valid_address $address || fatal_error "Invalid IP address: $address"
done
ip_range $2
;;
*)
usage 1
;;
esac
;;
ipdecimal)
[ -n "$debugging" ] && set -x
case $2 in
*.*.*.*)
valid_address $2 || fatal_error "Invalid IP address: $2"
echo " $(decodeaddr $2)"
;;
*)
echo " $(encodeaddr $2)"
;;
esac
;;
restore)
shift
restore_command $@
;;
call)
[ -n "$debugging" ] && set -x
#
# Undocumented way to call functions in ${SHAREDIR}/functions directly
#
shift
$@
;;
help)
shift
usage
;;
safe-restart|safe-start)
shift
safe_commands $@
;;
*)
usage 1
;;
esac
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