holm/shorewall_code
1
0
Fork 0
forked from extern/shorewall_code
Code Pull Requests Activity
988afa6bf5
shorewall_code/Shorewall/shorewall
teastep ef134da4b9 Make -q work with the try command 
git-svn-id: https://shorewall.svn.sourceforge.net/svnroot/shorewall/trunk@2494 fbd18981-670d-0410-9b5c-8dc0c1a9a2bb
2005-08-15 18:30:59 +00:00

1327 lines
31 KiB
Bash
Executable File
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

#!/bin/sh
#
# Shorewall Packet Filtering Firewall Control Program - V2.6
#
# This program is under GPL [http://www.gnu.org/copyleft/gpl.htm]
#
# (c) 1999,2000,2001,2002,2003,2004,2005 - 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 <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 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 <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 Verify the more heavily-used
# configuration files.
# 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 safe-start Starts the firewall and promtp for a c
# confirmation to accept or reject the new
# configuration
#
# shorewall safe-restart Restarts the firewall and prompt for a
# confirmation to accept or reject the new
# configuration
#
# 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 bugs in iptables-save (or rather in the extension modules).
#
iptablesbug()
{
if qt mywhich awk ; then
awk 'BEGIN {sline=""; };\
/^-j/ { print sline $0; next };\
/-m policy.*-j/ { print $0; next };\
/-m policy/ { sline=$0; next };\
/--mask ff/ { sub( /--mask ff/, "--mask 0xff" ) };\
{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=$(mywhich iptables 2> /dev/null)
if [ -z "$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
case $STARTUP_ENABLED in
[Nn][Oo])
echo " WARNING: Shorewall startup is disabled. To enable startup, set STARTUP_ENABLED=Yes in /etc/shorewall/shorewall.conf" >&2
;;
esac
}
#
# Clear descriptor 1 if it is a terminal
#
clear_term() {
[ -t 1 ] && clear
}
#
# Delay $timeout seconds -- if we're running on a recent bash2 then allow
# <enter> 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$1"
if [ -n "$VERBOSE" ]; then
grep "${LOGFORMAT}" $LOGFILE | \
sed s/" kernel:"// | \
sed s/" $host $LOGFORMAT"/" "/ | \
tail $options
else
grep "${LOGFORMAT}" $LOGFILE | \
sed s/" kernel:"// | \
sed s/" $host $LOGFORMAT"/" "/ | \
sed 's/MAC=.* SRC=/SRC=/' | \
tail $options
fi
}
#
# Show traffic control information
#
show_tc() {
show_one_tc() {
local device=${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
}
#
# 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=$1
fi
qt mywhich awk && haveawk=Yes || haveawk=
while true; do
clear_term
echo "$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 $ECHO_N 'Enter any character to continue: '
read foo
else
timed_read
fi
else
echo
packet_log 40
timed_read
fi
done
}
#
# Save currently running configuration
#
save_config() {
[ "$nolock" ] || mutex_on
if shorewall_is_started ; 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-$$
[ -f /var/lib/shorewall/restore-tail ] && \
cat /var/lib/shorewall/restore-tail >> /var/lib/shorewall/restore-$$
mv -f /var/lib/shorewall/restore-$$ $RESTOREPATH
chmod +x $RESTOREPATH
echo " Currently-running Configuration Saved to $RESTOREPATH"
rm -f ${RESTOREPATH}-ipsets
case ${SAVE_IPSETS:-No} in
[Yy][Ee][Ss])
RESTOREPATH=${RESTOREPATH}-ipsets
f=/var/lib/shorewall/restore-$$
echo "#!/bin/sh" > $f
echo "#This ipset restore file generated $(date) by Shorewall $version" >> $f
echo >> $f
echo ". /usr/share/shorewall/functions" >> $f
echo >> $f
grep '^MODULE' /var/lib/shorewall/restore-base >> $f
echo "reload_kernel_modules << __EOF__" >> $f
grep 'loadmodule ip_set' /var/lib/shorewall/restore-base >> $f
echo "__EOF__" >> $f
echo >> $f
echo "ipset -U :all: :all:" >> $f
echo "ipset -F" >> $f
echo "ipset -X" >> $f
echo "ipset -R << __EOF__" >> $f
ipset -S >> $f
echo "__EOF__" >> $f
mv -f $f $RESTOREPATH
chmod +x $RESTOREPATH
echo " Current Ipset Contents Saved to $RESTOREPATH"
;;
[Nn][Oo])
;;
*)
echo " WARNING: Invalid value ($SAVE_IPSETS) for SAVE_IPSETS. Ipset contents not saved"
;;
esac
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
[ "$nolock" ] || mutex_off
}
#
# 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] [ -x ] [ -q ] [ -f ] [ -v ] <command>"
echo "where <command> is one of:"
echo " add <interface>[:{<bridge-port>[:<host>]|<host>}[,...]] ... <zone>"
echo " allow <address> ..."
echo " check [ <directory> ]"
echo " clear"
echo " delete <interface>[:{<bridge-port>[:<host>]|<host>}[,...]] ... <zone>"
echo " drop <address> ..."
echo " dump"
echo " forget [ <file name> ]"
echo " help [ <command > | host | address ]"
echo " hits"
echo " ipcalc [ <address>/<vlsm> | <address> <netmask> ]"
echo " iprange <address>-<address>"
echo " logwatch [<refresh interval>]"
echo " refresh"
echo " reject <address> ..."
echo " reset"
echo " restart [ <directory> ]"
echo " restore [ <file name> ]"
echo " save [ <file name> ]"
echo " show [<chain> [ <chain> ... ]|actions|capabilities|classifiers|connections|log|nat|tc|tos|zones]"
echo " start [ <directory> ]"
echo " stop"
echo " status"
echo " try <directory> [ <timeout> ]"
echo " version"
echo " safe-start"
echo " safe-restart"
echo
exit $1
}
#
# Display the time that the counters were last reset
#
show_reset() {
[ -f /var/lib/shorewall/restarted ] && \
echo "Counters reset $(cat /var/lib/shorewall/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)"
}
read_yesno_with_timeout() {
read -t 60 yn 2> /dev/null
if [ $? -eq 2 ]
then
# read doesn't support timeout
test -x /bin/bash || return 2 # bash is not installed so the feature is not available
/bin/bash -c 'read -t 60 yn ; if [ "$yn" == "y" ] ; then exit 0 ; else exit 1 ; fi' # invoke bash and use its version of read
return $?
else
# read supports timeout
case "$yn" in
y|Y)
return 0
;;
*)
return 1
;;
esac
fi
}
#
# Print a heading with leading and trailing black lines
#
heading() {
echo
echo "$@"
echo
}
#
# 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=
VERBOSE=
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}
;;
v*)
VERBOSE=Yes
option=${option#v}
;;
*)
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
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
if qt mywhich make; then
make -qf /etc/shorewall/Makefile || FAST=
fi
if [ -n "$FAST" ]; then
RESTOREPATH=/var/lib/shorewall/$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
${RESTOREPATH}-ipsets
fi
echo Restoring Shorewall...
$RESTOREPATH
date > /var/lib/shorewall/restarted
echo Shorewall restored from $RESTOREPATH
else
exec $SHOREWALL_SHELL $FIREWALL $debugging $nolock start
fi
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)
[ $# -lt 3 ] && usage 1
exec $SHOREWALL_SHELL $FIREWALL $debugging $nolock $@
;;
show|list)
[ -n "$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
;;
zones)
[ $# -gt 2 ] && usage 1
if [ -f /var/lib/shorewall/zones ]; then
echo "Shorewall-$version Zones at $HOSTNAME - $(date)"
echo
while read zone hosts; do
echo $zone
for host in $hosts; do
echo " $host"
done
done < /var/lib/shorewall/zones
echo
else
echo " ERROR: /var/lib/shorewall/zones does not exist" >&2
exit 1
fi
;;
capabilities)
exec $SHOREWALL_SHELL $FIREWALL $debugging $nolock capabilities
;;
actions)
echo "allowBcast #Silently Allow Broadcast/multicast"
echo "dropBcast #Silently Drop Broadcast/multicast"
echo "dropNotSyn #Silently Drop Non-syn TCP packets"
echo "rejNotSyn #Silently Reject Non-syn TCP packets"
echo "dropInvalid #Silently Drop packets that are in the INVALID conntrack state"
echo "allowInvalid #Accept packets that are in the INVALID conntrack state."
echo "allowoutUPnP #Allow traffic from local command 'upnpd'"
echo "allowinUPnP #Allow UPnP inbound (to firewall) traffic"
echo "forwardUPnP #Allow traffic that upnpd has redirected from"
cat /usr/share/shorewall/actions.std /etc/shorewall/actions | grep -Ev '^\#|^$'
;;
*)
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
;;
status)
[ $# -eq 1 ] || usage 1
echo "Shorewall-$version Status at $HOSTNAME - $(date)"
echo
if shorewall_is_started ; then
echo "Shorewall is running"
status=0
else
echo "Shorewall is stopped"
status=4
fi
if [ -f /var/lib/shorewall/state ]; then
state="$(cat /var/lib/shorewall/state)"
case $state in
Stopped*|Clear*)
status=3
;;
esac
else
state=Unknown
fi
echo "State:$state"
echo
exit $status
;;
dump)
[ -n "$debugging" ] && set -x
[ $# -eq 1 ] || usage 1
clear_term
echo "Shorewall-$version Dump at $HOSTNAME - $(date)"
echo
show_reset
host=$(echo $HOSTNAME | sed 's/\..*$//')
$IPTABLES -L $IPT_OPTIONS
echo
packet_log 20
heading "NAT Table"
$IPTABLES -t nat -L $IPT_OPTIONS
heading "Mangle Table"
$IPTABLES -t mangle -L $IPT_OPTIONS
echo
cat /proc/net/ip_conntrack
heading "IP Configuration"
ip addr ls
heading "IP Stats"
ip -stat link ls
if qt mywhich brctl; then
heading "Bridges"
brctl show
fi
heading "/proc"
show_proc /proc/version
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 arp_ignore rp_filter log_martians; do
show_proc $directory/$file
done
done
if [ -n "$(ip rule ls)" ]; then
heading "Routing Rules"
ip rule ls
ip rule ls | while read rule; do
echo ${rule##* }
done | sort -u | while read table; do
heading "Table $table:"
ip route ls table $table
done
else
heading "Routing Table"
ip route ls
fi
heading "ARP"
arp -na
if qt mywhich lsmod; then
heading "Modules"
lsmod | grep -E '^ip_|^ipt_|^iptable_'
fi
;;
hits)
[ -n "$debugging" ] && set -x
[ $# -eq 1 ] || usage 1
clear_term
echo "Shorewall-$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 $# -gt 3 ] && usage 1
[ -n "$QUIET" ] && QUIET=-q
if ! $0 $debugging $QUIET -c $2 restart; then
if ! $IPTABLES -L shorewall > /dev/null 2> /dev/null; then
$0 $QUIET start
fi
elif ! $IPTABLES -L shorewall > /dev/null 2> /dev/null; then
$0 $QUIET start
elif [ $# -eq 3 ]; then
sleep $3
$0 $QUIET restart
fi
;;
logwatch)
[ -n "$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="$2"
validate_restorefile '<restore file>'
;;
*)
usage 1
;;
esac
RESTOREPATH=/var/lib/shorewall/$RESTOREFILE
save_config
;;
forget)
case $# in
1)
;;
2)
RESTOREFILE="$2"
validate_restorefile '<restore file>'
;;
*)
usage 1
;;
esac
RESTOREPATH=/var/lib/shorewall/$RESTOREFILE
if [ -x $RESTOREPATH ]; then
if [ -x ${RESTOREPATH}-ipsets ]; then
rm -f ${RESTOREPATH}-ipsets
echo " ${RESTOREPATH}-ipsets removed"
fi
rm -f $RESTOREPATH
echo " $RESTOREPATH removed"
elif [ -f $RESTOREPATH ]; then
echo " $RESTOREPATH exists and is not a saved Shorewall configuration"
fi
rm -f /var/lib/shorewall/save
;;
ipcalc)
[ -n "$debugging" ] && set -x
if [ $# -eq 2 ]; then
address=${2%/*}
vlsm=${2#*/}
elif [ $# -eq 3 ]; then
address=$2
vlsm=$(ip_vlsm $3)
else
usage 1
fi
[ -z "$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="$2"
validate_restorefile '<restore file>'
;;
*)
usage 1
;;
esac
RESTOREPATH=/var/lib/shorewall/$RESTOREFILE
[ -n "$nolock" ] || mutex_on
if [ -x $RESTOREPATH ]; then
if [ -x ${RESTOREPATH}-ipsets ] ; then
echo Restoring Ipsets...
iptables -F
iptables -X
${RESTOREPATH}-ipsets
fi
echo Restoring Shorewall...
$RESTOREPATH && echo "Shorewall restored from /var/lib/shorewall/$RESTOREFILE"
[ -n "$nolock" ] || mutex_off
else
echo "File /var/lib/shorewall/$RESTOREFILE: file not found"
[ -n "$nolock" ] || mutex_off
exit 2
fi
;;
call)
[ -n "$debugging" ] && set -x
#
# Undocumented way to call functions in /usr/share/shorewall/functions directly
#
shift;
$@
;;
help)
shift
[ $# -ne 1 ] && usage 1
help $@
;;
safe-restart|safe-start)
# 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
mutex_on
if shorewall_is_started
then
running=0
else
running=1
fi
if [ "$1" = "safe-start" -a $running -eq 0 ]
then
# the command is safe-start but the firewall is already running
$0 nolock $debugging start
ret=$?
exit 0
fi
if [ "$1" = "safe-start" -o $running -ne 0 ]
then
# the command is safe-start or shorewall is not started yet
command="start"
else
# the command is safe-restart and the firewall is already running
command="restart"
fi
if [ "$command" = "restart" ]
then
# save previous configuration
$0 nolock $debugging save "safe-start-restart"
fi
$0 nolock $debugging $command
echo -n "Do you want to accept the new firewall configuration? [y/n] "
read_yesno_with_timeout
if [ $? -eq 0 ]
then
echo "New configuration has been accepted"
if [ "$command" = "restart" ]
then
# removed previous configuration
rm /var/lib/shorewall/safe-start-restart
fi
else
if [ "$command" = "restart" ]
then
$0 nolock $debugging restore "safe-start-restart"
rm /var/lib/shorewall/safe-start-restart
else
$0 nolock $debugging clear
fi
mutex_off
echo "New configuration has been rejected and the old one restored"
exit 2
fi
mutex_off
[ $? -eq 0 ] && [ -n "$SUBSYSLOCK" ] && touch $SUBSYSLOCK
;;
*)
usage 1
;;
esac
View Git Blame Copy Permalink