#!/bin/sh # # Shorewall Packet Filtering Firewall Control Program - V2.2 # # This program is under GPL [http://www.gnu.org/copyleft/gpl.htm] # # (c) 1999,2000,2001,2002,2003,2004 - Tom Eastep (teastep@shorewall.net) # # This file should be placed in /sbin/shorewall. # # Shorewall documentation is available at http://shorewall.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 # # 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 [:] zone Adds a host or subnet to a zone # shorewall delete [:] zone Deletes a host or subnet from a zone # shorewall start Starts the firewall # shorewall restart Restarts the firewall # shorewall stop Stops the firewall # shorewall monitor [ refresh-interval ] Repeatedly Displays firewall status # plus the last 20 "interesting" # packets # 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 show [ ... ] Display the rules in each listed # 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 version Display the installed version id # shorewall check Verify the more heavily-used # configuration files. # shorewall try [ ] 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
... Temporarily drop all packets from the # listed address(es) # shorewall reject
... Temporarily reject all packets from the # listed address(es) # shorewall allow
... Reenable address(es) previously # disabled with "drop" or "reject" # shorewall save [ ] 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 [ ] Discard the data saved by 'shorewall save' # # shorewall restore [ ] Restore the state of the firewall from # previously saved information. # # shorewall ipaddr [
/ |
] # # Displays information about the network # defined by the argument[s] # # shorewall iprange
-
Decomposes a range of IP addresses into # a list of network/host addresses. # # Fatal Error # fatal_error() # $@ = Message { echo " $@" >&2 exit 2 } # Display a chain if it exists # showfirstchain() # $1 = name of chain { awk \ 'BEGIN {prnt=0; rslt=1; }; \ /^$/ { next; };\ /^Chain/ {if ( prnt == 1 ) { rslt=0; exit 0; }; };\ /Chain '$1'/ { prnt=1; }; \ { if (prnt == 1) print; };\ END { exit rslt; }' $TMPFILE } showchain() # $1 = name of chain { if [ "$firstchain" = "Yes" ]; then if showfirstchain $1; then firstchain= fi else awk \ 'BEGIN {prnt=0;};\ /^$|^ pkts/ { next; };\ /^Chain/ {if ( prnt == 1 ) exit; };\ /Chain '$1'/ { prnt=1; };\ { if (prnt == 1) print; }' $TMPFILE fi } # # The 'awk' hack that compensates for a bug in iptables-save (actually in libipt_policy.so) and can be removed when that bug is fixed. # iptablesbug() { if qt which awk ; then awk 'BEGIN {sline=""; };\ /^-j/ { print sline $0; next };\ /-m policy.*-j/ { print $0; next };\ /-m policy/ { sline=$0; next };\ {print ; sline="" }' else echo " Warning: You don't have 'awk' on this system so the output of the save command may be unusable" >&2 cat fi } # # Validate the value of RESTOREFILE # validate_restorefile() # $* = label { case $RESTOREFILE in */*) echo " ERROR: $@ must specify a simple file name: $RESTOREFILE" >&2 exit 2 ;; esac } # # Set the configuration variables from shorewall.conf # get_config() { [ -z "$LOGFILE" ] && LOGFILE=/var/log/messages if [ ! -f $LOGFILE ]; then echo "LOGFILE ($LOGFILE) does not exist!" >&2 exit 2 fi # # 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 $LOGFILE > /dev/null 2> /dev/null ) ; then realtail="Yes" else realtail="" fi [ -n "$FW" ] || FW=fw [ -n "LOGFORMAT" ] && LOGFORMAT="${LOGFORMAT%%%*}" [ -n "$LOGFORMAT" ] || LOGFORMAT="Shorewall:" if [ -n "$IPTABLES" ]; then if [ ! -e "$IPTABLES" ]; then echo " ERROR: The program specified in IPTABLES does not exist or is not executable" >&2 exit 2 fi else IPTABLES=$(which iptables 2> /dev/null) if [ -z "$IPTABLES" ] ; then echo " ERROR: Can't find iptables executable" >&2 exit 2 fi fi if [ -n "$SHOREWALL_SHELL" ]; then if [ ! -e "$SHOREWALL_SHELL" ]; then echo " ERROR: The program specified in SHOREWALL_SHELL does not exist or is not executable" >&2 exit 2 fi fi [ -n "$RESTOREFILE" ] || RESTOREFILE=restore validate_restorefile RESTOREFILE export RESTOREFILE } # # Display IPTABLES rules -- we used to store them in a variable but ash # dies when trying to display large sets of rules # display_chains() { trap "rm -f /tmp/chains-$$; exit 1" 1 2 3 4 5 6 9 if [ "$haveawk" = "Yes" ]; then # # Send the output to a temporary file since ash craps if we try to store # the output in a variable. # TMPFILE=$(mktempfile) [ -n "$TMPFILE" ] || { echo " ERROR:Cannot create temporary file" >&2; exit 1; } $IPTABLES -L $IPT_OPTIONS >> $TMPFILE clear echo "$banner $(date)" echo echo "Standard Chains" echo firstchain="Yes" showchain INPUT showchain OUTPUT showchain FORWARD timed_read clear echo "$banner $(date)" echo firstchain=Yes echo "Input Chains" echo chains=$(grep '^Chain.*_[in|fwd]' $TMPFILE | cut -d' ' -f 2) for chain in $chains; do showchain $chain done timed_read for zone in $zones; do if [ -n "$(grep "^Chain \.*${zone}" $TMPFILE)" ] ; then clear echo "$banner $(date)" echo firstchain=Yes eval display=\$${zone}_display echo "$display Chains" echo for zone1 in $FW $zones; do showchain ${zone}2$zone1 showchain @${zone}2$zone1 [ "$zone" != "$zone1" ] && \ showchain ${zone1}2${zone} && \ showchain @${zone1}2${zone} done timed_read fi done clear echo "$banner $(date)" echo firstchain=Yes echo "Policy Chains" echo showchain common showchain badpkt showchain icmpdef showchain rfc1918 showchain blacklst showchain reject showchain newnotsyn for zone in $zones all; do showchain ${zone}2all showchain @${zone}2all [ "$zone" = "all" ] || { showchain all2${zone}; showchain @all2${zone}; } done timed_read clear echo "$banner $(date)" echo firstchain=Yes echo "Dynamic Chain" echo showchain dynamic timed_read qt rm -f $TMPFILE else $IPTABLES -L -n -v timed_read fi trap - 1 2 3 4 5 6 9 } # # Delay $timeout seconds -- if we're running on a recent bash2 then allow # to terminate the delay # timed_read () { read -t $timeout foo 2> /dev/null test $? -eq 2 && sleep $timeout } # # Display the last $1 packets logged # packet_log() # $1 = number of messages { local options [ -n "$realtail" ] && options="-n$1" grep "${LOGFORMAT}" $LOGFILE | \ sed s/" kernel:"// | \ sed s/" $host $LOGFORMAT"/" "/ | \ sed 's/MAC=.* SRC=/SRC=/' | \ tail $options } # # Show traffic control information # show_tc() { show_one_tc() { local device=${1%@*} qdisc=$(tc qdisc list dev $device) if [ -n "$qdisc" ]; then echo Device $device: tc -s -d qdisc show dev $device tc -s -d class show dev $device echo fi } ip link list | \ while read inx interface details; do case $inx in [0-9]*) show_one_tc ${interface%:} ;; *) ;; esac done } # # Show classifier information # show_classifiers() { show_one_classifier() { local device=${1%@*} qdisc=$(tc qdisc list dev $device) if [ -n "$qdisc" ]; then echo Device $device: tc -s filter ls dev $device echo fi } ip link list | \ while read inx interface details; do case $inx in [0-9]*) show_one_classifier ${interface%:} ;; *) ;; esac done } # # Monitor the Firewall # monitor_firewall() # $1 = timeout -- if negative, prompt each time that # an 'interesting' packet count changes { host=$(echo $HOSTNAME | sed 's/\..*$//') oldrejects=$($IPTABLES -L -v -n | grep 'LOG') if [ $1 -lt 0 ]; then let "timeout=- $1" pause="Yes" else pause="No" timeout=$1 fi if qt which awk; then TMP_DIR=$(mktempdir) [ -n "$TMP_DIR" ] || { echo " ERROR:Cannot create temporary directory" >&2; exit 1; } haveawk=Yes determine_zones rm -rf $TMP_DIR else haveawk= fi while true; do display_chains clear echo "$banner $(date)" echo echo "Dropped/Rejected Packet Log" echo show_reset rejects=$($IPTABLES -L -v -n | grep 'LOG') if [ "$rejects" != "$oldrejects" ]; then oldrejects="$rejects" $RING_BELL packet_log 20 if [ "$pause" = "Yes" ]; then echo echo $ECHO_N 'Enter any character to continue: ' read foo else timed_read fi else echo packet_log 20 timed_read fi clear echo "$banner $(date)" echo echo "NAT Status" echo $IPTABLES -t nat -L $IPT_OPTIONS timed_read clear echo "$banner $(date)" echo echo echo "TOS/MARK Status" echo $IPTABLES -t mangle -L $IPT_OPTIONS timed_read clear echo "$banner $(date)" echo echo echo "Tracked Connections" echo cat /proc/net/ip_conntrack timed_read clear echo "$banner $(date)" echo echo echo "Traffic Shaping/Control" echo show_tc timed_read clear echo "$banner $(date)" echo echo echo "Packet Classifiers" echo show_classifiers timed_read done } # # Watch the Firewall Log # logwatch() # $1 = timeout -- if negative, prompt each time that # an 'interesting' packet count changes { host=$(echo $HOSTNAME | sed 's/\..*$//') oldrejects=$($IPTABLES -L -v -n | grep 'LOG') if [ $1 -lt 0 ]; then timeout=$((- $1)) pause="Yes" else pause="No" timeout=$1 fi qt which awk && haveawk=Yes || haveawk= while true; do clear echo "$banner $(date)" echo echo "Dropped/Rejected Packet Log" echo show_reset rejects=$($IPTABLES -L -v -n | grep 'LOG') if [ "$rejects" != "$oldrejects" ]; then oldrejects="$rejects" $RING_BELL packet_log 40 if [ "$pause" = "Yes" ]; then echo echo $ECHO_N 'Enter any character to continue: ' read foo else timed_read fi else echo packet_log 40 timed_read fi done } # # Help information # help() { [ -x $HELP ] && { export version; exec $HELP $*; } echo "Help subsystem is not installed at $HELP" } # # Give Usage Information # usage() # $1 = exit status { echo "Usage: $(basename $0) [debug|trace] [nolock] [-c ] [ -x ] [ -q ] [ -f ] " echo "where is one of:" echo " add [:] " echo " allow
..." echo " check [ ]" echo " clear" echo " delete [:] " echo " drop
..." echo " forget [ ]" echo " help [ | host | address ]" echo " hits" echo " ipcalc [
/ |
]" echo " iprange
-
" echo " logwatch []" echo " monitor []" echo " refresh" echo " reject
..." echo " reset" echo " restart [ ]" echo " restore [ ]" echo " save [ ]" echo " show [ [ ... ]|classifiers|connections|log|nat|tc|tos]" echo " start [ ]" echo " stop" echo " status" echo " try [ ]" echo " version" echo echo "The -c and -f options may not be specified with a in the start, restart and check commands" exit $1 } # # Display the time that the counters were last reset # show_reset() { [ -f $STATEDIR/restarted ] && \ echo "Counters reset $(cat $STATEDIR/restarted)" && \ echo } # # Display's the passed file name followed by "=" and the file's contents. # show_proc() # $1 = name of a file { [ -f $1 ] && echo " $1 = $(cat $1)" } # # Execution begins here # debugging= if [ $# -gt 0 ] && [ "$1" = "debug" -o "$1" = "trace" ]; then debugging=debug shift fi nolock= if [ $# -gt 0 ] && [ "$1" = "nolock" ]; then nolock=nolock shift fi SHOREWALL_DIR= QUIET= IPT_OPTIONS="-nv" FAST= done=0 while [ $done -eq 0 ]; do [ $# -eq 0 ] && usage 1 option=$1 case $option in -*) option=${option#-} [ -z "$option" ] && usage 1 while [ -n "$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=$2 option= shift ;; x*) IPT_OPTIONS="-xnv" option=${option#x} ;; q*) QUIET=Yes option=${option#q} ;; f*) FAST=Yes option=${option#f} ;; *) usage 1 ;; esac done shift ;; *) done=1 ;; esac done if [ $# -eq 0 ]; then usage 1 fi [ -n "$SHOREWALL_DIR" ] && export SHOREWALL_DIR [ -n "$QUIET" ] && export QUIET PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/bin:/usr/local/sbin MUTEX_TIMEOUT= SHARED_DIR=/usr/share/shorewall FIREWALL=$SHARED_DIR/firewall FUNCTIONS=$SHARED_DIR/functions VERSION_FILE=$SHARED_DIR/version HELP=$SHARED_DIR/help if [ -f $FUNCTIONS ]; then . $FUNCTIONS else echo "$FUNCTIONS does not exist!" >&2 exit 2 fi 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 export CONFIG_PATH get_config [ -z "${STATEDIR}" ] && STATEDIR=/var/state/shorewall if [ ! -f $FIREWALL ]; then echo "ERROR: Shorewall is not properly installed" if [ -L $FIREWALL ]; then echo " $FIREWALL is a symbolic link to a" echo " non-existant file" else echo " The file $FIREWALL does not exist" fi exit 2 fi if [ -f $VERSION_FILE ]; then version=$(cat $VERSION_FILE) else echo "ERROR: Shorewall is not properly installed" echo " The file $VERSION_FILE does not exist" exit 1 fi banner="Shorewall-$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 case "$1" in start) case $# in 1) ;; 2) [ -n "$SHOREWALL_DIR" -o -n "$FAST" ] && usage 2 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=$2 export SHOREWALL_DIR ;; *) usage 1 ;; esac if [ -n "$FAST" ]; then RESTOREPATH=/var/lib/shorewall/$RESTOREFILE if [ -x $RESTOREPATH ]; then echo Restoring Shorewall... $RESTOREPATH date > $STATEDIR/restarted echo Shorewall restored from $RESTOREPATH else exec $SHOREWALL_SHELL $FIREWALL $debugging $nolock start fi else exec $SHOREWALL_SHELL $FIREWALL $debugging $nolock start fi ;; stop|reset|clear|refresh) [ $# -ne 1 ] && usage 1 exec $SHOREWALL_SHELL $FIREWALL $debugging $nolock $1 ;; check|restart) case $# in 1) ;; 2) [ -n "$SHOREWALL_DIR" ] && usage 2 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=$2 export SHOREWALL_DIR ;; *) usage 1 ;; esac exec $SHOREWALL_SHELL $FIREWALL $debugging $nolock $1 ;; add|delete) [ $# -ne 3 ] && usage 1 exec $SHOREWALL_SHELL $FIREWALL $debugging $nolock $1 $2 $3 ;; show|list) [ -n "$debugging" ] && set -x case "$2" in connections) [ $# -gt 2 ] && usage 1 echo "Shorewall-$version Connections at $HOSTNAME - $(date)" echo cat /proc/net/ip_conntrack ;; nat) [ $# -gt 2 ] && usage 1 echo "Shorewall-$version NAT at $HOSTNAME - $(date)" echo show_reset $IPTABLES -t nat -L $IPT_OPTIONS ;; tos|mangle) [ $# -gt 2 ] && usage 1 echo "Shorewall-$version TOS at $HOSTNAME - $(date)" echo show_reset $IPTABLES -t mangle -L $IPT_OPTIONS ;; log) [ $# -gt 2 ] && usage 1 echo "Shorewall-$version Log at $HOSTNAME - $(date)" echo show_reset host=$(echo $HOSTNAME | sed 's/\..*$//') packet_log 20 ;; tc) [ $# -gt 2 ] && usage 1 echo "Shorewall-$version Traffic Control at $HOSTNAME - $(date)" echo show_tc ;; classifiers) [ $# -gt 2 ] && usage 1 echo "Shorewall-$version Clasifiers at $HOSTNAME - $(date)" echo show_classifiers ;; *) shift echo "Shorewall-$version $([ $# -gt 1 ] && echo Chains || echo Chain) $* at $HOSTNAME - $(date)" echo show_reset if [ $# -gt 0 ]; then for chain in $*; do $IPTABLES -L $chain $IPT_OPTIONS done else $IPTABLES -L $IPT_OPTIONS fi ;; esac ;; monitor) [ -n "$debugging" ] && set -x if [ $# -eq 2 ]; then monitor_firewall $2 elif [ $# -eq 1 ]; then monitor_firewall 30 else usage 1 fi ;; status) [ -n "$debugging" ] && set -x [ $# -eq 1 ] || usage 1 clear echo "Shorewall-$version Status at $HOSTNAME - $(date)" echo show_reset host=$(echo $HOSTNAME | sed 's/\..*$//') $IPTABLES -L $IPT_OPTIONS echo packet_log 20 echo echo "NAT Table" echo $IPTABLES -t nat -L $IPT_OPTIONS echo echo "Mangle Table" echo $IPTABLES -t mangle -L $IPT_OPTIONS echo cat /proc/net/ip_conntrack echo echo "IP Configuration" echo ip addr ls if qt which brctl; then echo echo "Bridges" echo brctl show fi echo echo "/proc" echo show_proc /proc/sys/net/ipv4/ip_forward show_proc /proc/sys/net/ipv4/icmp_echo_ignore_all for directory in /proc/sys/net/ipv4/conf/*; do for file in proxy_arp arp_filter rp_filter log_martians; do show_proc $directory/$file done done echo echo "Routing Rules" echo ip rule ls ip rule ls | while read rule; do table=${rule##* } echo echo "Table $table:" echo ip route ls table $table done ;; hits) [ -n "$debugging" ] && set -x [ $# -eq 1 ] || usage 1 clear echo "Shorewall-$version Hits at $HOSTNAME - $(date)" echo timeout=30 if [ $(grep -c "$LOGFORMAT" $LOGFILE ) -gt 0 ] ; then echo " HITS IP DATE" echo " ---- --------------- ------" grep "$LOGFORMAT" $LOGFILE | sed 's/\(.\{6\}\)\(.*SRC=\)\(.*\)\( DST=.*\)/\3 \1/' | sort | uniq -c | sort -rn echo "" echo " HITS IP PORT" echo " ---- --------------- -----" grep "$LOGFORMAT" $LOGFILE | sed 's/\(.*SRC=\)\(.*\)\( DST=.*DPT=\)\([0-9]\{1,5\}\)\(.*\)/\2 \4/ t s/\(.*SRC=\)\(.*\)\( DST=.*\)/\2/' | sort | uniq -c | sort -rn echo "" echo " HITS DATE" echo " ---- ------" grep "$LOGFORMAT" $LOGFILE | sed 's/\(.\{6\}\)\(.*\)/\1/' | sort | uniq -c | sort -rn echo "" echo " HITS PORT SERVICE(S)" echo " ---- ----- ----------" grep "$LOGFORMAT.*DPT" $LOGFILE | sed 's/\(.*DPT=\)\([0-9]\{1,5\}\)\(.*\)/\2/' | sort | uniq -c | sort -rn | \ while read count port ; do # List all services defined for the given port srv=$(grep "^[^#].*\\b$port/" /etc/services | cut -f 1 | sort -u) srv=$(echo $srv | sed 's/ /,/g') if [ -n "$srv" ] ; then printf '%7d %5d %s\n' $count $port $srv else printf '%7d %5d\n' $count $port fi done fi ;; version) echo $version ;; try) [ -n "$SHOREWALL_DIR" ] && startup_error "Error: -c option may not be used with \"try\"" [ $# -lt 2 -o $# -gt 3 ] && usage 1 if ! $0 $debugging -c $2 restart; then if ! $IPTABLES -L shorewall > /dev/null 2> /dev/null; then $0 start fi elif ! $IPTABLES -L shorewall > /dev/null 2> /dev/null; then $0 start elif [ $# -eq 3 ]; then sleep $3 $0 restart fi ;; logwatch) [ -n "$debugging" ] && set -x if [ $# -eq 2 ]; then logwatch $2 elif [ $# -eq 1 ]; then logwatch 30 else usage 1 fi ;; drop) [ -n "$debugging" ] && set -x [ $# -eq 1 ] && usage 1 mutex_on while [ $# -gt 1 ]; do shift qt $IPTABLES -D dynamic -s $1 -j reject qt $IPTABLES -D dynamic -s $1 -j DROP $IPTABLES -A dynamic -s $1 -j DROP || break 1 echo "$1 Dropped" done mutex_off ;; reject) [ -n "$debugging" ] && set -x [ $# -eq 1 ] && usage 1 mutex_on while [ $# -gt 1 ]; do shift qt $IPTABLES -D dynamic -s $1 -j reject qt $IPTABLES -D dynamic -s $1 -j DROP $IPTABLES -A dynamic -s $1 -j reject || break 1 echo "$1 Rejected" done mutex_off ;; allow) [ -n "$debugging" ] && set -x [ $# -eq 1 ] && usage 1 mutex_on while [ $# -gt 1 ]; do shift if qt $IPTABLES -D dynamic -s $1 -j reject || qt $IPTABLES -D dynamic -s $1 -j DROP; then echo "$1 Allowed" else echo "$1 Not Dropped or Rejected" fi done mutex_off ;; save) [ -n "$debugging" ] && set -x case $# in 1) ;; 2) RESTOREFILE="$2" validate_restorefile '' ;; *) usage 1 ;; esac RESTOREPATH=/var/lib/shorewall/$RESTOREFILE mutex_on if qt $IPTABLES -L shorewall -n; then [ -d /var/lib/shorewall ] || mkdir -p /var/lib/shorewall if [ -f $RESTOREPATH -a ! -x $RESTOREPATH ]; then echo " ERROR: $RESTOREPATH exists and is not a saved Shorewall configuration" else case $RESTOREFILE in save|restore-base) echo " ERROR: Reserved file name: $RESTOREFILE" ;; *) if $IPTABLES -L dynamic -n > /var/lib/shorewall/save; then echo " Dynamic Rules Saved" if [ -f /var/lib/shorewall/restore-base ]; then cp -f /var/lib/shorewall/restore-base /var/lib/shorewall/restore-$$ if iptables-save | iptablesbug >> /var/lib/shorewall/restore-$$ ; then echo __EOF__ >> /var/lib/shorewall/restore-$$ mv -f /var/lib/shorewall/restore-$$ $RESTOREPATH chmod +x $RESTOREPATH echo " Currently-running Configuration Saved to $RESTOREPATH" else rm -f /var/lib/shorewall/restore-$$ echo " ERROR: Currently-running Configuration Not Saved" fi else echo " ERROR: /var/lib/shorewall/restore-base does not exist" fi else echo "Error Saving the Dynamic Rules" fi ;; esac fi else echo "Shorewall isn't started" fi mutex_off ;; forget) case $# in 1) ;; 2) RESTOREFILE="$2" validate_restorefile '' ;; *) usage 1 ;; esac RESTOREPATH=/var/lib/shorewall/$RESTOREFILE if [ -x $RESTOREPATH ]; then rm -f $RESTOREPATH echo " $RESTOREPATH removed" elif [ -f $RESTOREPATH ]; then echo " $RESTOREPATH exists and is not a saved Shorewall configuration" fi ;; ipcalc) [ -n "$debugging" ] && set -x if [ $# -eq 2 ]; then address=${2%/*} vlsm=${2#*/} elif [ $# -eq 3 ]; then address=$2 vlsm=$(ip_vlsm $3) else usage 1 fi [ -z "$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 *.*.*.*-*.*.*.*) ip_range $2 ;; *) usage 1 ;; esac ;; restore) case $# in 1) ;; 2) RESTOREFILE="$2" validate_restorefile '' ;; *) usage 1 ;; esac RESTOREPATH=/var/lib/shorewall/$RESTOREFILE if [ -x $RESTOREPATH ]; then echo Restoring Shorewall... $RESTOREPATH && echo "Shorewall restored from /var/lib/shorewall/$RESTOREFILE" else echo "File /var/lib/shorewall/$RESTOREFILE: file not found" exit 2 fi ;; call) [ -n "$debugging" ] && set -x # # Undocumented way to call functions in /usr/share/shorewall/functions directly # shift; $@ ;; help) shift [ $# -ne 1 ] && usage 1 help $@ ;; *) usage 1 ;; esac