mirror of
https://gitlab.com/shorewall/code.git
synced 2024-11-15 20:24:09 +01:00
2077 lines
49 KiB
Plaintext
2077 lines
49 KiB
Plaintext
#
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# Shorewall 4.4 -- /usr/share/shorewall/lib.cli.
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#
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# This program is under GPL [http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt]
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#
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# (c) 1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010 - Tom Eastep (teastep@shorewall.net)
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#
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# Complete documentation is available at http://shorewall.net
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of Version 2 of the GNU General Public License
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# as published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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#
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# This library contains the command processing code common to /sbin/shorewall and
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# /sbin/shorewall-lite.
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#
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#
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# Fatal Error
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#
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fatal_error() # $@ = Message
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{
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echo " $@" >&2
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exit 2
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}
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#
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# Display a chain if it exists
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#
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showfirstchain() # $1 = name of chain
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{
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awk \
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'BEGIN {prnt=0; rslt=1; }; \
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/^$/ { next; };\
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/^Chain/ {if ( prnt == 1 ) { rslt=0; exit 0; }; };\
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/Chain '$1'/ { prnt=1; }; \
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{ if (prnt == 1) print; };\
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END { exit rslt; }' $TMPFILE
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}
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showchain() # $1 = name of chain
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{
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if [ "$firstchain" = "Yes" ]; then
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if showfirstchain $1; then
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firstchain=
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fi
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else
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awk \
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'BEGIN {prnt=0;};\
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/^$|^ pkts/ { next; };\
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/^Chain/ {if ( prnt == 1 ) exit; };\
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/Chain '$1'/ { prnt=1; };\
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{ if (prnt == 1) print; }' $TMPFILE
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fi
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}
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#
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# The 'awk' hack that compensates for bugs in iptables-save (or rather in the extension modules).
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#
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iptablesbug()
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{
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if qt mywhich awk ; then
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awk 'BEGIN { sline=""; };\
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/^-j/ { print sline $0; next };\
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/-m policy.*-j/ { print $0; next };\
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/-m policy/ { sline=$0; next };\
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/--mask ff/ { sub( /--mask ff/, "--mask 0xff" ) };\
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{ print ; sline="" }'
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else
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echo " WARNING: You don't have 'awk' on this system so the output of the save command may be unusable" >&2
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cat
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fi
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}
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#
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# Validate the value of RESTOREFILE
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#
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validate_restorefile() # $* = label
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{
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case $RESTOREFILE in
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*/*)
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error_message "ERROR: $@ must specify a simple file name: $RESTOREFILE"
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exit 2
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;;
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.safe|.try)
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;;
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.*|NONE)
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error_message "ERROR: Reserved File Name: $RESTOREFILE"
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exit 2
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;;
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esac
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}
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#
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# Clear descriptor 1 if it is a terminal
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#
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clear_term() {
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[ -t 1 ] && clear
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}
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#
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# Delay $timeout seconds -- if we're running on a recent bash2 then allow
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# <enter> to terminate the delay
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#
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timed_read ()
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{
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read -t $timeout foo 2> /dev/null
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test $? -eq 2 && sleep $timeout
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}
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#
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# Determine if 'syslog -C' is running
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#
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syslog_circular_buffer() {
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local pid
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local tty
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local flags
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local cputime
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local path
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local args
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local arg
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ps ax 2> /dev/null | while read pid tty flags cputime path args; do
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case $path in
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syslogd|*/syslogd)
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for arg in $args; do
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if [ x$arg = x-C ]; then
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echo Yes
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return
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fi
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done
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;;
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esac
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done
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}
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#
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# Display the last $1 packets logged
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#
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packet_log() # $1 = number of messages
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{
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if [ -n "$g_showmacs" -o $VERBOSITY -gt 2 ]; then
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$g_logread | grep 'IN=.* OUT=.*SRC=.*\..*DST=' | head -n$1 | tac | sed 's/ kernel://; s/\[.*\] //' | sed s/" $host $LOGFORMAT"/" "/
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else
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$g_logread | grep 'IN=.* OUT=.*SRC=.*\..*DST=' | head -n$1 | tac | sed 's/ kernel://; s/MAC=.* SRC=/SRC=/; s/\[.*\] '// | sed s/" $host $LOGFORMAT"/" "/
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fi
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}
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search_log() # $1 = IP address to search for
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{
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if [ -n "$g_showmacs" -o $VERBOSITY -gt 2 ]; then
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$g_logread | grep 'IN=.* OUT=.*SRC=.*\..*DST=' | grep "$1" | tac | sed 's/ kernel://; s/\[.*\] //' | sed s/" $host $LOGFORMAT"/" "/
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else
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$g_logread | grep 'IN=.* OUT=.*SRC=.*\..*DST=' | grep "$1" | tac | sed 's/ kernel://; s/MAC=.* SRC=/SRC=/; s/\[.*\] '// | sed s/" $host $LOGFORMAT"/" "/
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fi
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}
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#
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# Show traffic control information
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#
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show_tc() {
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show_one_tc() {
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local device
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device=${1%@*}
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qdisc=$(tc qdisc list dev $device)
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if [ -n "$qdisc" ]; then
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echo Device $device:
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tc -s -d qdisc show dev $device
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echo
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tc -s -d class show dev $device
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echo
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fi
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}
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if [ $# -gt 0 ]; then
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show_one_tc $1
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else
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ip -o link list | while read inx interface details; do
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show_one_tc ${interface%:}
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done
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fi
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}
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#
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# Show classifier information
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#
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show_classifiers() {
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show_one_classifier() {
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local device
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device=${1%@*}
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qdisc=$(tc qdisc list dev $device)
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if [ -n "$qdisc" ]; then
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echo Device $device:
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tc -s filter ls dev $device
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echo
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fi
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}
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ip -o link list | while read inx interface details; do
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show_one_classifier ${interface%:}
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done
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}
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#
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# Watch the Firewall Log
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#
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logwatch() # $1 = timeout -- if negative, prompt each time that
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# an 'interesting' packet count changes
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{
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if [ -z "$LOGFILE" ]; then
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LOGFILE=/var/log/messages
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if [ -n "$(syslog_circular_buffer)" ]; then
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g_logread="logread | tac"
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elif [ -r $LOGFILE ]; then
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g_logread="tac $LOGFILE"
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else
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echo "LOGFILE ($LOGFILE) does not exist!" >&2
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exit 2
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fi
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fi
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host=$(echo $g_hostname | sed 's/\..*$//')
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oldrejects=$($IPTABLES -L -v -n | grep 'LOG')
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if [ $1 -lt 0 ]; then
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timeout=$((- $1))
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pause="Yes"
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else
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pause="No"
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timeout=$1
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fi
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qt mywhich awk && haveawk=Yes || haveawk=
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while true; do
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clear_term
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echo "$banner $(date)"
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echo
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echo "Dropped/Rejected Packet Log ($LOGFILE)"
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echo
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show_reset
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rejects=$($IPTABLES -L -v -n | grep 'LOG')
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if [ "$rejects" != "$oldrejects" ]; then
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oldrejects="$rejects"
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$g_ring_bell
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packet_log 40
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if [ "$pause" = "Yes" ]; then
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echo
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echo $g_echo_n 'Enter any character to continue: '
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read foo
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else
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timed_read
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fi
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else
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echo
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packet_log 40
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timed_read
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fi
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done
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}
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#
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# Save currently running configuration
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#
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do_save() {
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local status
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status=0
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if [ -f ${VARDIR}/firewall ]; then
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if $iptables_save | iptablesbug > ${VARDIR}/restore-$$; then
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cp -f ${VARDIR}/firewall $g_restorepath
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mv -f ${VARDIR}/restore-$$ ${g_restorepath}-iptables
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chmod +x $g_restorepath
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echo " Currently-running Configuration Saved to $g_restorepath"
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run_user_exit save
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else
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rm -f ${VARDIR}/restore-$$
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echo " ERROR: Currently-running Configuration Not Saved" >&2
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status=1
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fi
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else
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echo " ERROR: ${VARDIR}/firewall does not exist" >&2
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status=1
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fi
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case ${SAVE_IPSETS:=No} in
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[Yy]es)
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case ${IPSET:=ipset} in
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*/*)
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if [ ! -x "$IPSET" ]; then
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error_message "ERROR: IPSET=$IPSET does not exist or is not executable - ipsets are not saved"
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IPSET=
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fi
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;;
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*)
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IPSET="$(mywhich $IPSET)"
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[ -n "$IPSET" ] || error_message "ERROR: The ipset utility cannot be located - ipsets are not saved"
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;;
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esac
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if [ -n "$IPSET" ]; then
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if [ -f /etc/debian_version ] && [ $(cat /etc/debian_version) = 5.0.3 ]; then
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#
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# The 'grep -v' is a hack for a bug in ipset's nethash implementation when xtables-addons is applied to Lenny
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#
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hack='| grep -v /31'
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else
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hack=
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fi
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if eval $IPSET -S $hack > ${VARDIR}/ipsets.tmp; then
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#
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# Don't save an 'empty' file
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#
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grep -qE -- '^(-N|create )' ${VARDIR}/ipsets.tmp && mv -f ${VARDIR}/ipsets.tmp ${g_restorepath}-ipsets
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fi
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fi
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;;
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[Nn]o)
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;;
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*)
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error_message "WARNING: Invalid value ($SAVE_IPSETS) for SAVE_IPSETS"
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;;
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esac
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return $status
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}
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save_config() {
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local result
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result=1
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iptables_save=${IPTABLES}-save
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[ -x $iptables_save ] || echo "$iptables-save does not exist or is not executable" >&2
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if shorewall_is_started ; then
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[ -d ${VARDIR} ] || mkdir -p ${VARDIR}
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if [ -f $g_restorepath -a ! -x $g_restorepath ]; then
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echo " ERROR: $g_restorepath exists and is not a saved $g_product configuration" >&2
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else
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case $RESTOREFILE in
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capabilities|chains|default_route|firewall|firewall.conf|nat|proxyarp|restarted|rt_tables|save|state|undo_routing|zones)
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echo " ERROR: Reserved file name: $RESTOREFILE" >&2
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;;
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*)
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validate_restorefile RESTOREFILE
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do_save && rm -f ${VARDIR}/save
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;;
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esac
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fi
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else
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echo "Shorewall isn't started" >&2
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fi
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return 0
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}
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#
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# Show routing configuration
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#
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show_routing() {
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if [ -n "$(ip rule list)" ]; then
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heading "Routing Rules"
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ip rule list
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ip rule list | while read rule; do
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echo ${rule##* }
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done | sort -u | while read table; do
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heading "Table $table:"
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ip route list table $table
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done
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if [ -n "$g_routecache" ]; then
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heading "Route Cache"
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ip -4 route list cache
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fi
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else
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heading "Routing Table"
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ip route list
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fi
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}
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#
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# 'list dynamic' command executor
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#
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find_sets() {
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local junk
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local setname
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ipset -L -n | grep "^Name: ${1}_" | while read junk setname; do echo $setname; done
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}
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list_zone() {
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local sets
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local setname
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[ -n "$(mywhich ipset)" ] || fatal_error "The ipset utility cannot be located"
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sets=$(ipset -L -n | grep '^$1_');
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[ -n "$sets" ] || sets=$(find_sets $1)
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for setname in $sets; do
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echo "${setname#${1}_}:"
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ipset -L $setname -n | awk 'BEGIN {prnt=0;}; \
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/^Members:/ {prnt=1; next; }; \
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/^Bindings:/ {prnt=0; }; \
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{ if (prnt == 1) print " ", $1; };'
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done
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}
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#
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# Show Filter - For Shorewall-lite, if there was an scfilter file at compile-time,
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# then the compiler generated another version of this function and
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# embedded it in the firewall.conf file. That version supersedes this
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# one.
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#
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show_connections_filter() {
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local filter
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local command
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local first
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command=${SHOREWALL_SHELL}
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filter=$(find_file scfilter)
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if [ -f $filter ]; then
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first=$(head -n1 $filter)
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case $first in
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\#!*)
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command=${first#\#!}
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;;
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esac
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$command $filter
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else
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cat -
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fi
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}
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#
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# Show Command Executor
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#
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show_command() {
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local finished
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finished=0
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local table
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table=filter
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local table_given
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table_given=
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show_macro() {
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foo=`grep 'This macro' $macro | sed 's/This macro //'`
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if [ -n "$foo" ]; then
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macro=${macro#*.}
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foo=${foo%.*}
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if [ ${#macro} -gt 10 ]; then
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echo " $macro ${foo#\#}"
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else
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$g_echo_e " $macro \t${foo#\#}"
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fi
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fi
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}
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while [ $finished -eq 0 -a $# -gt 0 ]; do
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option=$1
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case $option in
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-*)
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option=${option#-}
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|
|
while [ -n "$option" ]; do
|
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case $option in
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-)
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finished=1
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option=
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;;
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v*)
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VERBOSITY=$(($VERBOSITY + 1 ))
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option=${option#v}
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;;
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x*)
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g_ipt_options="-xnv"
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option=${option#x}
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;;
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|
m*)
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g_showmacs=Yes
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option=${option#m}
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;;
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f*)
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g_filemode=Yes
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option=${option#f}
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;;
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t)
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[ $# -eq 1 ] && usage 1
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|
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case $2 in
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mangle|nat|filter|raw|rawpost)
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table=$2
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table_given=Yes
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;;
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|
*)
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|
fatal_error "Invalid table name ($s)"
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|
;;
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esac
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option=
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shift
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;;
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|
l*)
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|
g_ipt_options1="--line-numbers"
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|
option=${option#l}
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;;
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|
c*)
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|
g_routecache=Yes
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option=${option#c}
|
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;;
|
|
*)
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|
usage 1
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;;
|
|
esac
|
|
done
|
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shift
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;;
|
|
*)
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finished=1
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;;
|
|
esac
|
|
done
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|
|
|
g_ipt_options="$g_ipt_options $g_ipt_options1"
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|
|
|
|
|
[ -n "$g_debugging" ] && set -x
|
|
case "$1" in
|
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connections)
|
|
[ $# -gt 1 ] && usage 1
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|
|
|
if [ -d /proc/sys/net/netfilter/ ]; then
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|
local count
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|
local max
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count=$(cat /proc/sys/net/netfilter/nf_conntrack_count)
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max=$(cat /proc/sys/net/netfilter/nf_conntrack_max)
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echo "$g_product $SHOREWALL_VERSION Connections ($count out of $max) at $g_hostname - $(date)"
|
|
else
|
|
echo "$g_product $SHOREWALL_VERSION Connections at $g_hostname - $(date)"
|
|
fi
|
|
|
|
echo
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|
|
|
if qt mywhich conntrack ; then
|
|
conntrack -f ipv4 -L | show_connections_filter
|
|
else
|
|
if [ -f /proc/net/ip_conntrack ]; then
|
|
cat /proc/net/ip_conntrack | show_connections_filter
|
|
else
|
|
grep -v '^ipv6' /proc/net/nf_conntrack | show_connections_filter
|
|
fi
|
|
fi
|
|
;;
|
|
nat)
|
|
[ $# -gt 1 ] && usage 1
|
|
echo "$g_product $SHOREWALL_VERSION NAT Table at $g_hostname - $(date)"
|
|
echo
|
|
show_reset
|
|
$IPTABLES -t nat -L $g_ipt_options
|
|
;;
|
|
raw)
|
|
[ $# -gt 1 ] && usage 1
|
|
echo "$g_product $SHOREWALL_VERSION RAW Table at $g_hostname - $(date)"
|
|
echo
|
|
show_reset
|
|
$IPTABLES -t raw -L $g_ipt_options
|
|
;;
|
|
rawpost)
|
|
[ $# -gt 1 ] && usage 1
|
|
echo "$g_product $SHOREWALL_VERSION RAWPOST Table at $g_hostname - $(date)"
|
|
echo
|
|
show_reset
|
|
$IPTABLES -t rawpost -L $g_ipt_options
|
|
;;
|
|
tos|mangle)
|
|
[ $# -gt 1 ] && usage 1
|
|
echo "$g_product $SHOREWALL_VERSION Mangle Table at $g_hostname - $(date)"
|
|
echo
|
|
show_reset
|
|
$IPTABLES -t mangle -L $g_ipt_options
|
|
;;
|
|
log)
|
|
[ $# -gt 2 ] && usage 1
|
|
|
|
if [ -z "$LOGFILE" ]; then
|
|
LOGFILE=/var/log/messages
|
|
|
|
if [ -n "$(syslog_circular_buffer)" ]; then
|
|
g_logread="logread | tac"
|
|
elif [ -r $LOGFILE ]; then
|
|
g_logread="tac $LOGFILE"
|
|
else
|
|
echo "LOGFILE ($LOGFILE) does not exist!" >&2
|
|
exit 2
|
|
fi
|
|
fi
|
|
|
|
echo "$g_product $SHOREWALL_VERSION Log ($LOGFILE) at $g_hostname - $(date)"
|
|
echo
|
|
show_reset
|
|
host=$(echo $g_hostname | sed 's/\..*$//')
|
|
|
|
if [ $# -eq 2 ]; then
|
|
search_log $2
|
|
else
|
|
packet_log 20
|
|
fi
|
|
;;
|
|
tc)
|
|
[ $# -gt 2 ] && usage 1
|
|
echo "$g_product $SHOREWALL_VERSION Traffic Control at $g_hostname - $(date)"
|
|
echo
|
|
shift
|
|
|
|
if [ -z "$1" ]; then
|
|
$IPTABLES -t mangle -L -n -v
|
|
echo
|
|
fi
|
|
|
|
show_tc $1
|
|
;;
|
|
classifiers|filters)
|
|
[ $# -gt 1 ] && usage 1
|
|
echo "$g_product $SHOREWALL_VERSION Classifiers at $g_hostname - $(date)"
|
|
echo
|
|
show_classifiers
|
|
;;
|
|
zones)
|
|
[ $# -gt 1 ] && usage 1
|
|
if [ -f ${VARDIR}/zones ]; then
|
|
echo "$g_product $SHOREWALL_VERSION Zones at $g_hostname - $(date)"
|
|
echo
|
|
while read zone type hosts; do
|
|
echo "$zone ($type)"
|
|
for host in $hosts; do
|
|
case $host in
|
|
exclude)
|
|
echo " exclude:"
|
|
;;
|
|
*)
|
|
echo " $host"
|
|
;;
|
|
esac
|
|
done
|
|
done < ${VARDIR}/zones
|
|
echo
|
|
else
|
|
echo " ERROR: ${VARDIR}/zones does not exist" >&2
|
|
exit 1
|
|
fi
|
|
;;
|
|
capabilities)
|
|
[ $# -gt 1 ] && usage 1
|
|
determine_capabilities
|
|
VERBOSITY=2
|
|
if [ -n "$g_filemode" ]; then
|
|
report_capabilities1
|
|
else
|
|
report_capabilities
|
|
fi
|
|
;;
|
|
ip)
|
|
[ $# -gt 1 ] && usage 1
|
|
echo "$g_product $SHOREWALL_VERSION IP at $g_hostname - $(date)"
|
|
echo
|
|
ip -4 addr list
|
|
;;
|
|
routing)
|
|
[ $# -gt 1 ] && usage 1
|
|
echo "$g_product $SHOREWALL_VERSION Routing at $g_hostname - $(date)"
|
|
echo
|
|
show_routing
|
|
;;
|
|
config)
|
|
. ${SHAREDIR}/configpath
|
|
if [ -n "$g_filemode" ]; then
|
|
echo "CONFIG_PATH=$CONFIG_PATH"
|
|
echo "VARDIR=$VARDIR"
|
|
echo "LIBEXEC=$g_libexec"
|
|
[ -n "$LITEDIR" ] && echo "LITEDIR=$LITEDIR"
|
|
else
|
|
echo "Default CONFIG_PATH is $CONFIG_PATH"
|
|
echo "Default VARDIR is $VARDIR"
|
|
echo "LIBEXEC is $g_libexec"
|
|
[ -n "$LITEDIR" ] && echo "LITEDIR is $LITEDIR"
|
|
fi
|
|
;;
|
|
chain)
|
|
shift
|
|
echo "$g_product $SHOREWALL_VERSION $([ $# -gt 1 ] && echo "Chains " || [ $# -gt 0 ] && echo "Chain " || echo $table Table)$* at $g_hostname - $(date)"
|
|
echo
|
|
show_reset
|
|
if [ $# -gt 0 ]; then
|
|
for chain in $*; do
|
|
$IPTABLES -t $table -L $chain $g_ipt_options
|
|
echo
|
|
done
|
|
else
|
|
$IPTABLES -t $table -L $g_ipt_options
|
|
fi
|
|
;;
|
|
vardir)
|
|
echo $VARDIR;
|
|
;;
|
|
policies)
|
|
[ $# -gt 1 ] && usage 1
|
|
echo "$g_product $SHOREWALL_VERSION Policies at $g_hostname - $(date)"
|
|
echo
|
|
[ -f ${VARDIR}/policies ] && cat ${VARDIR}/policies;
|
|
;;
|
|
ipa)
|
|
echo "$g_product $SHOREWALL_VERSION per-IP Accounting at $g_hostname - $(date)"
|
|
echo
|
|
[ $# -gt 1 ] && usage 1
|
|
perip_accounting
|
|
;;
|
|
*)
|
|
if [ "$g_product" = Shorewall ]; then
|
|
case $1 in
|
|
actions)
|
|
[ $# -gt 1 ] && usage 1
|
|
echo "A_ACCEPT # Audit and accept the connection"
|
|
echo "A_DROP # Audit and drop the connection"
|
|
echo "A_REJECT # Audit and reject the connection "
|
|
echo "allowBcast # Silently Allow Broadcast/multicast"
|
|
echo "allowInvalid # Accept packets that are in the INVALID conntrack state."
|
|
echo "allowinUPnP # Allow UPnP inbound (to firewall) traffic"
|
|
echo "allowoutUPnP # Allow traffic from local command 'upnpd' (does not work with kernels after 2.6.13)"
|
|
echo "dropBcast # Silently Drop Broadcast/multicast"
|
|
echo "dropInvalid # Silently Drop packets that are in the INVALID conntrack state"
|
|
echo "dropNotSyn # Silently Drop Non-syn TCP packets"
|
|
echo "forwardUPnP # Allow traffic that upnpd has redirected from"
|
|
echo "rejNotSyn # Silently Reject Non-syn TCP packets"
|
|
|
|
if [ -f ${CONFDIR}/actions ]; then
|
|
cat ${SHAREDIR}/actions.std ${CONFDIR}/actions | grep -Ev '^\#|^$'
|
|
else
|
|
grep -Ev '^\#|^$' ${SHAREDIR}/actions.std
|
|
fi
|
|
|
|
return
|
|
;;
|
|
macro)
|
|
[ $# -ne 2 ] && usage 1
|
|
for directory in $(split $CONFIG_PATH); do
|
|
if [ -f ${directory}/macro.$2 ]; then
|
|
echo "Shorewall $SHOREWALL_VERSION Macro $2 at $g_hostname - $(date)"
|
|
cat ${directory}/macro.$2
|
|
return
|
|
fi
|
|
done
|
|
echo " WARNING: Macro $2 not found" >&2
|
|
return
|
|
;;
|
|
macros)
|
|
[ $# -gt 1 ] && usage 1
|
|
|
|
for directory in $(split $CONFIG_PATH); do
|
|
temp=
|
|
for macro in ${directory}/macro.*; do
|
|
case $macro in
|
|
*\*)
|
|
;;
|
|
*)
|
|
if [ -z "$temp" ]; then
|
|
echo
|
|
echo "Macros in $directory:"
|
|
echo
|
|
temp=Yes
|
|
fi
|
|
show_macro
|
|
;;
|
|
esac
|
|
done
|
|
done
|
|
return
|
|
;;
|
|
esac
|
|
fi
|
|
|
|
|
|
if [ $# -gt 0 ]; then
|
|
if [ $1 = dynamic -a $# -gt 1 ]; then
|
|
shift
|
|
[ $# -eq 1 ] || usage 1
|
|
list_zone $1
|
|
return;
|
|
fi
|
|
|
|
[ -n "$table_given" ] || for chain in $*; do
|
|
if ! qt $IPTABLES -t $table -L $chain $g_ipt_options; then
|
|
error_message "ERROR: Chain '$chain' is not recognized by $IPTABLES."
|
|
exit 1
|
|
fi
|
|
done
|
|
|
|
echo "$g_product $SHOREWALL_VERSION $([ $# -gt 1 ] && echo "Chains " || echo "Chain ")$* at $g_hostname - $(date)"
|
|
echo
|
|
show_reset
|
|
for chain in $*; do
|
|
$IPTABLES -t $table -L $chain $g_ipt_options
|
|
echo
|
|
done
|
|
else
|
|
echo "$g_product $SHOREWALL_VERSION $table Table at $g_hostname - $(date)"
|
|
echo
|
|
show_reset
|
|
$IPTABLES -t $table -L $g_ipt_options
|
|
fi
|
|
;;
|
|
esac
|
|
}
|
|
|
|
perip_accounting() {
|
|
if qt mywhich iptaccount; then
|
|
local hnames
|
|
local hname
|
|
|
|
hnames=$(iptaccount -a | grep '^Found table:' | cut -d ' ' -f 3)
|
|
|
|
if [ -n "$hnames" ]; then
|
|
for hname in $hnames; do
|
|
iptaccount -l $hname | egrep '^IP:|^Show'
|
|
echo
|
|
done
|
|
else
|
|
echo " No IP Accounting Tables Defined"
|
|
echo
|
|
fi
|
|
else
|
|
echo " iptaccount is not installed"
|
|
fi
|
|
}
|
|
|
|
#
|
|
# Dump Filter - For Shorewall-lite, if there was a dumpfilter file at compile-time,
|
|
# then the compiler generated another version of this function and
|
|
# embedded it in the firewall.conf file. That version supersedes this
|
|
# one.
|
|
#
|
|
dump_filter() {
|
|
local filter
|
|
local command
|
|
local first
|
|
|
|
command=${SHOREWALL_SHELL}
|
|
|
|
filter=$(find_file dumpfilter)
|
|
|
|
if [ -f $filter ]; then
|
|
first=$(head -n1 $filter)
|
|
|
|
case $first in
|
|
\#!*)
|
|
command=${first#\#!}
|
|
;;
|
|
esac
|
|
|
|
$command $filter
|
|
else
|
|
cat -
|
|
fi
|
|
}
|
|
|
|
#
|
|
# Dump Command Executor
|
|
#
|
|
do_dump_command() {
|
|
local finished
|
|
finished=0
|
|
|
|
while [ $finished -eq 0 -a $# -gt 0 ]; do
|
|
option=$1
|
|
case $option in
|
|
-*)
|
|
option=${option#-}
|
|
|
|
while [ -n "$option" ]; do
|
|
case $option in
|
|
-)
|
|
finished=1
|
|
option=
|
|
;;
|
|
x*)
|
|
g_ipt_options="-xnv"
|
|
option=${option#x}
|
|
;;
|
|
m*)
|
|
g_showmacs=Yes
|
|
option=${option#m}
|
|
;;
|
|
l*)
|
|
g_ipt_options1="--line-numbers"
|
|
option=${option#l}
|
|
;;
|
|
c*)
|
|
g_routecache=Yes
|
|
option=${option#c}
|
|
;;
|
|
*)
|
|
usage 1
|
|
;;
|
|
esac
|
|
done
|
|
shift
|
|
;;
|
|
*)
|
|
finished=1
|
|
;;
|
|
esac
|
|
done
|
|
|
|
if [ -z "$LOGFILE" ]; then
|
|
LOGFILE=/var/log/messages
|
|
|
|
if [ -n "$(syslog_circular_buffer)" ]; then
|
|
g_logread="logread | tac"
|
|
elif [ -r $LOGFILE ]; then
|
|
g_logread="tac $LOGFILE"
|
|
else
|
|
echo "LOGFILE ($LOGFILE) does not exist!" >&2
|
|
exit 2
|
|
fi
|
|
fi
|
|
|
|
g_ipt_options="$g_ipt_options $g_ipt_options1"
|
|
|
|
[ $VERBOSITY -lt 2 ] && VERBOSITY=2
|
|
|
|
[ -n "$g_debugging" ] && set -x
|
|
[ $# -eq 0 ] || usage 1
|
|
clear_term
|
|
echo "$g_product $SHOREWALL_VERSION Dump at $g_hostname - $(date)"
|
|
echo
|
|
|
|
show_reset
|
|
host=$(echo $g_hostname | sed 's/\..*$//')
|
|
$IPTABLES -L $g_ipt_options
|
|
|
|
heading "Log ($LOGFILE)"
|
|
packet_log 20
|
|
|
|
if qt $IPTABLES -t nat -L -n; then
|
|
heading "NAT Table"
|
|
$IPTABLES -t nat -L $g_ipt_options
|
|
fi
|
|
|
|
if qt $IPTABLES -t mangle -L -n; then
|
|
heading "Mangle Table"
|
|
$IPTABLES -t mangle -L $g_ipt_options
|
|
fi
|
|
|
|
if qt $IPTABLES -t raw -L -n; then
|
|
heading "Raw Table"
|
|
$IPTABLES -t raw -L $g_ipt_options
|
|
fi
|
|
|
|
if qt $IPTABLES -t rawpost -L -n; then
|
|
heading "Rawpost Table"
|
|
$IPTABLES -t rawpost -L $g_ipt_options
|
|
fi
|
|
|
|
local count=$(cat /proc/sys/net/netfilter/nf_conntrack_count)
|
|
local max=$(cat /proc/sys/net/netfilter/nf_conntrack_max)
|
|
|
|
heading "Conntrack Table ($count out of $max)"
|
|
[ -f /proc/net/ip_conntrack ] && cat /proc/net/ip_conntrack || grep -v '^ipv6' /proc/net/nf_conntrack
|
|
|
|
heading "IP Configuration"
|
|
ip -4 addr list
|
|
|
|
heading "IP Stats"
|
|
ip -stat link list
|
|
|
|
if qt mywhich brctl; then
|
|
heading "Bridges"
|
|
brctl show
|
|
fi
|
|
|
|
heading "Per-IP Counters"
|
|
|
|
perip_accounting
|
|
|
|
if qt mywhich setkey; then
|
|
heading "PFKEY SPD"
|
|
setkey -DP
|
|
heading "PFKEY SAD"
|
|
setkey -D | grep -Ev '^[[:space:]](A:|E:)' # Don't divulge the keys
|
|
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
|
|
|
|
show_routing
|
|
|
|
heading "ARP"
|
|
arp -na
|
|
|
|
if qt mywhich lsmod; then
|
|
heading "Modules"
|
|
lsmod | grep -E '^(ip_|ipt_|iptable_|nf_|xt_)' | sort
|
|
fi
|
|
|
|
determine_capabilities
|
|
echo
|
|
report_capabilities
|
|
|
|
echo
|
|
netstat -tunap
|
|
|
|
if [ -n "$TC_ENABLED" ]; then
|
|
heading "Traffic Control"
|
|
show_tc
|
|
heading "TC Filters"
|
|
show_classifiers
|
|
fi
|
|
}
|
|
|
|
dump_command() {
|
|
do_dump_command | dump_filter
|
|
}
|
|
|
|
#
|
|
# Restore Comand Executor
|
|
#
|
|
restore_command() {
|
|
local finished
|
|
finished=0
|
|
|
|
while [ $finished -eq 0 -a $# -gt 0 ]; do
|
|
option=$1
|
|
case $option in
|
|
-*)
|
|
option=${option#-}
|
|
|
|
while [ -n "$option" ]; do
|
|
case $option in
|
|
-)
|
|
finished=1
|
|
option=
|
|
;;
|
|
n*)
|
|
g_noroutes=Yes
|
|
option=${option#n}
|
|
;;
|
|
*)
|
|
usage 1
|
|
;;
|
|
esac
|
|
done
|
|
shift
|
|
;;
|
|
*)
|
|
finished=1
|
|
;;
|
|
esac
|
|
done
|
|
|
|
case $# in
|
|
0)
|
|
;;
|
|
1)
|
|
RESTOREFILE="$1"
|
|
validate_restorefile '<restore file>'
|
|
;;
|
|
*)
|
|
usage 1
|
|
;;
|
|
esac
|
|
|
|
if [ -z "$STARTUP_ENABLED" ]; then
|
|
error_message "ERROR: Startup is disabled"
|
|
exit 2
|
|
fi
|
|
|
|
g_restorepath=${VARDIR}/$RESTOREFILE
|
|
|
|
[ -n "$nolock" ] || mutex_on
|
|
|
|
if [ -x $g_restorepath ]; then
|
|
progress_message3 "Restoring Shorewall..."
|
|
|
|
run_it $g_restorepath restore && progress_message3 "$g_product restored from ${VARDIR}/$RESTOREFILE"
|
|
|
|
[ -n "$nolock" ] || mutex_off
|
|
else
|
|
echo "File $g_restorepath: file not found"
|
|
[ -n "$nolock" ] || mutex_off
|
|
exit 2
|
|
fi
|
|
}
|
|
|
|
#
|
|
# Display the time that the counters were last reset
|
|
#
|
|
show_reset() {
|
|
[ -f ${VARDIR}/restarted ] && \
|
|
echo "Counters reset $(cat ${VARDIR}/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 "$@"
|
|
echo
|
|
}
|
|
|
|
#
|
|
# Create the appropriate -q option to pass onward
|
|
#
|
|
make_verbose() {
|
|
local v
|
|
v=$g_verbose_offset
|
|
local option
|
|
option=-
|
|
|
|
if [ -n "$g_use_verbosity" ]; then
|
|
echo "-v$g_use_verbosity"
|
|
elif [ $g_verbose_offset -gt 0 ]; then
|
|
while [ $v -gt 0 ]; do
|
|
option="${option}v"
|
|
v=$(($v - 1))
|
|
done
|
|
|
|
echo $option
|
|
elif [ $g_verbose_offset -lt 0 ]; then
|
|
while [ $v -lt 0 ]; do
|
|
option="${option}q"
|
|
v=$(($v + 1))
|
|
done
|
|
|
|
echo $option
|
|
fi
|
|
}
|
|
|
|
#
|
|
# Executor for drop,reject,... commands
|
|
#
|
|
block() # $1 = command, $2 = Finished, $3 - $n addresses
|
|
{
|
|
local chain
|
|
chain=$1
|
|
local finished
|
|
finished=$2
|
|
local which
|
|
which='-s'
|
|
local range
|
|
range='--src-range'
|
|
|
|
if ! chain_exists dynamic; then
|
|
echo "Dynamic blacklisting is not enabled in the current $g_product configuration" >&2
|
|
[ -n "$nolock" ] || mutex_off
|
|
exit 2
|
|
fi
|
|
|
|
shift 3
|
|
|
|
while [ $# -gt 0 ]; do
|
|
case $1 in
|
|
from)
|
|
which='-s'
|
|
range='--src-range'
|
|
shift
|
|
continue
|
|
;;
|
|
to)
|
|
which='-d'
|
|
range='--dst-range'
|
|
shift
|
|
continue
|
|
;;
|
|
*-*)
|
|
qt $IPTABLES -D dynamic -m iprange $range $1 -j reject
|
|
qt $IPTABLES -D dynamic -m iprange $range $1 -j DROP
|
|
qt $IPTABLES -D dynamic -m iprange $range $1 -j logreject
|
|
qt $IPTABLES -D dynamic -m iprange $range $1 -j logdrop
|
|
$IPTABLES -A dynamic -m iprange $range $1 -j $chain || break 1
|
|
;;
|
|
*)
|
|
qt $IPTABLES -D dynamic $which $1 -j reject
|
|
qt $IPTABLES -D dynamic $which $1 -j DROP
|
|
qt $IPTABLES -D dynamic $which $1 -j logreject
|
|
qt $IPTABLES -D dynamic $which $1 -j logdrop
|
|
$IPTABLES -A dynamic $which $1 -j $chain || break 1
|
|
;;
|
|
esac
|
|
|
|
echo "$1 $finished"
|
|
shift
|
|
done
|
|
}
|
|
|
|
#
|
|
# Replace commas with spaces and echo the result
|
|
#
|
|
separate_list() {
|
|
local list
|
|
list="$@"
|
|
local part
|
|
local newlist
|
|
local firstpart
|
|
local lastpart
|
|
local enclosure
|
|
|
|
case "$list" in
|
|
*,|,*|*,,*|*[[:space:]]*)
|
|
#
|
|
# There's been whining about us not catching embedded white space in
|
|
# comma-separated lists. This is an attempt to snag some of the cases.
|
|
#
|
|
echo "WARNING -- invalid comma-separated list \"$@\"" >&2
|
|
;;
|
|
*\[*\]*)
|
|
#
|
|
# Where we need to embed comma-separated lists within lists, we enclose them
|
|
# within square brackets.
|
|
#
|
|
firstpart=${list%%\[*}
|
|
lastpart=${list#*\[}
|
|
enclosure=${lastpart%%\]*}
|
|
lastpart=${lastpart#*\]}
|
|
case $lastpart in
|
|
\,*)
|
|
case $firstpart in
|
|
*\,)
|
|
echo "$(separate_list ${firstpart%,}) [$enclosure] $(separate_list ${lastpart#,})"
|
|
;;
|
|
*)
|
|
echo "$(separate_list $firstpart)[$enclosure] $(separate_list ${lastpart#,})"
|
|
;;
|
|
esac
|
|
;;
|
|
*)
|
|
case $firstpart in
|
|
*\,)
|
|
echo "$(separate_list ${firstpart%,}) [$enclosure]$(separate_list $lastpart)"
|
|
;;
|
|
*)
|
|
echo "$(separate_list $firstpart)[$enclosure]$(separate_list $lastpart)"
|
|
;;
|
|
esac
|
|
;;
|
|
esac
|
|
return
|
|
;;
|
|
esac
|
|
|
|
list="$@"
|
|
part="${list%%,*}"
|
|
newlist="$part"
|
|
|
|
while [ "x$part" != "x$list" ]; do
|
|
list="${list#*,}";
|
|
part="${list%%,*}";
|
|
newlist="$newlist $part";
|
|
done
|
|
|
|
echo "$newlist"
|
|
}
|
|
|
|
#
|
|
# add command executor
|
|
#
|
|
add_command() {
|
|
local interface host hostlist zone ipset
|
|
if ! shorewall_is_started ; then
|
|
echo "Shorewall Not Started" >&2
|
|
exit 2
|
|
fi
|
|
|
|
case "$IPSET" in
|
|
*/*)
|
|
;;
|
|
*)
|
|
[ -n "$(mywhich $IPSET)" ] || fatal_error "The $IPSET utility cannot be located"
|
|
;;
|
|
esac
|
|
#
|
|
# Normalize host list
|
|
#
|
|
while [ $# -gt 1 ]; do
|
|
interface=${1%%:*}
|
|
host=${1#*:}
|
|
[ "$host" = "$1" ] && host=
|
|
|
|
if [ -z "$host" ]; then
|
|
hostlist="$hostlist $interface:0.0.0.0/0"
|
|
else
|
|
for h in $(separate_list $host); do
|
|
hostlist="$hostlist $interface:$h"
|
|
done
|
|
fi
|
|
|
|
shift
|
|
done
|
|
|
|
zone=$1
|
|
|
|
for host in $hostlist; do
|
|
interface=${host%:*}
|
|
|
|
ipset=${zone}_${interface};
|
|
|
|
if ! qt $IPSET -L $ipset -n; then
|
|
fatal_error "Zone $zone, interface $interface is does not have a dynamic host list"
|
|
fi
|
|
|
|
host=${host#*:}
|
|
|
|
if $IPSET -A $ipset $host; then
|
|
echo "Host $interface:$host added to zone $zone"
|
|
else
|
|
fatal_error "Unable to add $interface:$host to zone $zone"
|
|
fi
|
|
done
|
|
|
|
}
|
|
|
|
#
|
|
# delete command executor
|
|
#
|
|
delete_command() {
|
|
local interface host hostent hostlist zone ipset
|
|
if ! shorewall_is_started ; then
|
|
echo "Shorewall Not Started" >&2
|
|
exit 2;
|
|
fi
|
|
|
|
case "$IPSET" in
|
|
*/*)
|
|
;;
|
|
*)
|
|
[ -n "$(mywhich $IPSET)" ] || fatal_error "The $IPSET utility cannot be located"
|
|
;;
|
|
esac
|
|
|
|
#
|
|
# Normalize host list
|
|
#
|
|
while [ $# -gt 1 ]; do
|
|
interface=${1%%:*}
|
|
host=${1#*:}
|
|
[ "$host" = "$1" ] && host=
|
|
|
|
if [ -z "$host" ]; then
|
|
hostlist="$hostlist $interface:0.0.0.0/0"
|
|
else
|
|
for h in $(separate_list $host); do
|
|
hostlist="$hostlist $interface:$h"
|
|
done
|
|
fi
|
|
|
|
shift
|
|
done
|
|
|
|
zone=$1
|
|
|
|
for hostent in $hostlist; do
|
|
interface=${hostent%:*}
|
|
|
|
ipset=${zone}_${interface};
|
|
|
|
if ! qt $IPSET -L $ipset -n; then
|
|
fatal_error "Zone $zone, interface $interface is does not have a dynamic host list"
|
|
fi
|
|
|
|
host=${hostent#*:}
|
|
|
|
if $IPSET -D $ipset $host; then
|
|
echo "Host $hostend deleted from zone $zone"
|
|
else
|
|
echo " WARNING: Unable to delete host $hostent to zone $zone" >&2
|
|
fi
|
|
done
|
|
|
|
}
|
|
|
|
#
|
|
# 'hits' commmand executor
|
|
#
|
|
hits_command() {
|
|
local finished
|
|
finished=0
|
|
local today
|
|
today=
|
|
|
|
while [ $finished -eq 0 -a $# -gt 0 ]; do
|
|
option=$1
|
|
case $option in
|
|
-*)
|
|
option=${option#-}
|
|
|
|
while [ -n "$option" ]; do
|
|
case $option in
|
|
-)
|
|
finished=1
|
|
option=
|
|
;;
|
|
t*)
|
|
today=$(date +'^%b %_d.*')
|
|
option=${option#t}
|
|
;;
|
|
*)
|
|
usage 1
|
|
;;
|
|
esac
|
|
done
|
|
shift
|
|
;;
|
|
*)
|
|
finished=1
|
|
;;
|
|
esac
|
|
done
|
|
|
|
[ $# -eq 0 ] || usage 1
|
|
|
|
clear_term
|
|
echo "$g_product $SHOREWALL_VERSION Hits at $g_hostname - $(date)"
|
|
echo
|
|
|
|
timeout=30
|
|
|
|
if $g_logread | grep -q "${today}IN=.* OUT=" ; then
|
|
echo " HITS IP DATE"
|
|
echo " ---- --------------- ------"
|
|
$g_logread | grep "${today}IN=.* OUT=" | sed 's/\(.\{6\}\)\(.*SRC=\)\(.*\)\( DST=.*\)/\3 \1/' | sort | uniq -c | sort -rn | while read count address month day; do
|
|
printf '%7d %-15s %3s %2d\n' $count $address $month $day
|
|
done
|
|
|
|
echo ""
|
|
|
|
echo " HITS IP PORT"
|
|
echo " ---- --------------- -----"
|
|
$g_logread | grep "${today}IN=.* OUT=" | sed 's/\(.*SRC=\)\(.*\)\( DST=.*DPT=\)\([0-9]\{1,5\}\)\(.*\)/\2 \4/
|
|
t
|
|
s/\(.*SRC=\)\(.*\)\( DST=.*\)/\2/' | sort | uniq -c | sort -rn | while read count address port; do
|
|
[ -z "$port" ] && port=0
|
|
printf '%7d %-15s %d\n' $count $address $port
|
|
done
|
|
|
|
echo ""
|
|
|
|
echo " HITS DATE"
|
|
echo " ---- ------"
|
|
$g_logread | grep "${today}IN=.* OUT=" | sed 's/\(.\{6\}\)\(.*\)/\1/' | sort | uniq -c | sort -rn | while read count month day; do
|
|
printf '%7d %3s %2d\n' $count $month $day
|
|
done
|
|
|
|
echo ""
|
|
|
|
echo " HITS PORT SERVICE(S)"
|
|
echo " ---- ----- ----------"
|
|
$g_logread | grep "${today}IN=.* OUT=.*DPT" | 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 | cut -f 1 -d' ' | 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 $port
|
|
fi
|
|
done
|
|
fi
|
|
}
|
|
|
|
#
|
|
# 'allow' command executor
|
|
#
|
|
allow_command() {
|
|
[ -n "$g_debugging" ] && set -x
|
|
[ $# -eq 1 ] && usage 1
|
|
if shorewall_is_started ; then
|
|
local which
|
|
which='-s'
|
|
local range
|
|
range='--src-range'
|
|
|
|
if ! chain_exists dynamic; then
|
|
echo "Dynamic blacklisting is not enabled in the current $g_product configuration" >&2
|
|
exit 2
|
|
fi
|
|
|
|
[ -n "$nolock" ] || mutex_on
|
|
while [ $# -gt 1 ]; do
|
|
shift
|
|
case $1 in
|
|
from)
|
|
which='-s'
|
|
range='--src-range'
|
|
continue
|
|
;;
|
|
to)
|
|
which='-d'
|
|
range='--dst-range'
|
|
continue
|
|
;;
|
|
*-*)
|
|
if qt $IPTABLES -D dynamic -m iprange $range $1 -j reject ||\
|
|
qt $IPTABLES -D dynamic -m iprange $range $1 -j DROP ||\
|
|
qt $IPTABLES -D dynamic -m iprange $range $1 -j logdrop ||\
|
|
qt $IPTABLES -D dynamic -m iprange $range $1 -j logreject
|
|
then
|
|
echo "$1 Allowed"
|
|
else
|
|
echo "$1 Not Dropped or Rejected"
|
|
fi
|
|
;;
|
|
*)
|
|
if qt $IPTABLES -D dynamic $which $1 -j reject ||\
|
|
qt $IPTABLES -D dynamic $which $1 -j DROP ||\
|
|
qt $IPTABLES -D dynamic $which $1 -j logdrop ||\
|
|
qt $IPTABLES -D dynamic $which $1 -j logreject
|
|
then
|
|
echo "$1 Allowed"
|
|
else
|
|
echo "$1 Not Dropped or Rejected"
|
|
fi
|
|
;;
|
|
esac
|
|
done
|
|
[ -n "$nolock" ] || mutex_off
|
|
else
|
|
error_message "ERROR: $g_product is not started"
|
|
exit 2
|
|
fi
|
|
}
|
|
|
|
#
|
|
# 'logwatch' command executor
|
|
#
|
|
logwatch_command() {
|
|
shift
|
|
|
|
finished=0
|
|
|
|
while [ $finished -eq 0 -a $# -ne 0 ]; do
|
|
option=$1
|
|
case $option in
|
|
-*)
|
|
option=${option#-}
|
|
|
|
[ -z "$option" ] && usage 1
|
|
|
|
while [ -n "$option" ]; do
|
|
case $option in
|
|
v*)
|
|
VERBOSITY=$(($VERBOSITY + 1 ))
|
|
option=${option#v}
|
|
;;
|
|
q*)
|
|
VERBOSITY=$(($VERBOSITY - 1 ))
|
|
option=${option#q}
|
|
;;
|
|
m*)
|
|
g_showmacs=Yes
|
|
option=${option#m}
|
|
;;
|
|
-)
|
|
finished=1
|
|
option=
|
|
;;
|
|
*)
|
|
usage 1
|
|
;;
|
|
esac
|
|
done
|
|
shift
|
|
;;
|
|
*)
|
|
finished=1
|
|
;;
|
|
esac
|
|
done
|
|
|
|
[ -n "$g_debugging" ] && set -x
|
|
|
|
if [ $# -eq 1 ]; then
|
|
logwatch $1
|
|
elif [ $# -eq 0 ]; then
|
|
logwatch 30
|
|
else
|
|
usage 1
|
|
fi
|
|
}
|
|
|
|
#
|
|
# Determine which optional facilities are supported by iptables/netfilter
|
|
#
|
|
determine_capabilities() {
|
|
[ -n "$IPTABLES" ] || IPTABLES=$(mywhich iptables)
|
|
|
|
if [ -z "$IPTABLES" ]; then
|
|
echo " ERROR: No executable iptables binary can be found on your PATH" >&2
|
|
exit 1
|
|
fi
|
|
|
|
[ "$IP" = ip -o -z "$IP" ] && IP=$(which ip)
|
|
|
|
[ -n "$IP" -a -x "$IP" ] || IP=
|
|
|
|
[ "$TC" = tc -o -z "$TC" ] && TC=$(which tc)
|
|
|
|
[ -n "$TC" -a -x "$TC" ] || TC=
|
|
|
|
qt $IPTABLES -t nat -L -n && NAT_ENABLED=Yes || NAT_ENABLED=
|
|
qt $IPTABLES -t mangle -L -n && MANGLE_ENABLED=Yes || MANGLE_ENABLED=
|
|
|
|
CONNTRACK_MATCH=
|
|
NEW_CONNTRACK_MATCH=
|
|
OLD_CONNTRACK_MATCH=
|
|
MULTIPORT=
|
|
XMULTIPORT=
|
|
POLICY_MATCH=
|
|
PHYSDEV_MATCH=
|
|
PHYSDEV_BRIDGE=
|
|
IPRANGE_MATCH=
|
|
RECENT_MATCH=
|
|
OWNER_MATCH=
|
|
IPSET_MATCH=
|
|
OLD_IPSET_MATCH=
|
|
IPSET_V5=
|
|
CONNMARK=
|
|
XCONNMARK=
|
|
CONNMARK_MATCH=
|
|
XCONNMARK_MATCH=
|
|
RAW_TABLE=
|
|
RAWPOST_TABLE=
|
|
IPP2P_MATCH=
|
|
OLD_IPP2P_MATCH=
|
|
LENGTH_MATCH=
|
|
CLASSIFY_TARGET=
|
|
ENHANCED_REJECT=
|
|
USEPKTTYPE=
|
|
KLUDGEFREE=
|
|
MARK=
|
|
XMARK=
|
|
EXMARK=
|
|
TPROXY_TARGET=
|
|
MANGLE_FORWARD=
|
|
COMMENTS=
|
|
ADDRTYPE=
|
|
TCPMSS_MATCH=
|
|
HASHLIMIT_MATCH=
|
|
NFQUEUE_TARGET=
|
|
REALM_MATCH=
|
|
HELPER_MATCH=
|
|
CONNLIMIT_MATCH=
|
|
TIME_MATCH=
|
|
GOTO_TARGET=
|
|
LOGMARK_TARGET=
|
|
IPMARK_TARGET=
|
|
LOG_TARGET=Yes
|
|
ULOG_TARGET=
|
|
NFLOG_TARGET=
|
|
PERSISTENT_SNAT=
|
|
FLOW_FILTER=
|
|
FWMARK_RT_MASK=
|
|
MARK_ANYWHERE=
|
|
HEADER_MATCH=
|
|
ACCOUNT_TARGET=
|
|
AUDIT_TARGET=
|
|
CONDITION_MATCH=
|
|
IPTABLES_S=
|
|
BASIC_FILTER=
|
|
|
|
chain=fooX$$
|
|
|
|
if [ -n "$NAT_ENABLED" ]; then
|
|
if qt $IPTABLES -t nat -N $chain; then
|
|
qt $IPTABLES -t nat -A $chain -j SNAT --to-source 1.2.3.4 --persistent && PERSISTENT_SNAT=Yes
|
|
qt $IPTABLES -t nat -F $chain
|
|
qt $IPTABLES -t nat -X $chain
|
|
fi
|
|
fi
|
|
|
|
qt $IPTABLES -F $chain
|
|
qt $IPTABLES -X $chain
|
|
if ! $IPTABLES -N $chain; then
|
|
echo " ERROR: The command \"$IPTABLES -N $chain\" failed" >&2
|
|
exit 1
|
|
fi
|
|
|
|
chain1=${chain}1
|
|
|
|
qt $IPTABLES -F $chain1
|
|
qt $IPTABLES -X $chain1
|
|
if ! $IPTABLES -N $chain1; then
|
|
echo " ERROR: The command \"$IPTABLES -N $chain1\" failed" >&2
|
|
exit 1
|
|
fi
|
|
|
|
if ! qt $IPTABLES -A $chain -m state --state ESTABLISHED,RELATED -j ACCEPT &&
|
|
! qt $IPTABLES -A $chain -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT; then
|
|
echo " ERROR: Your kernel lacks connection tracking and/or state matching -- Shorewall will not run on this system" >&2
|
|
exit 1
|
|
fi
|
|
|
|
qt $IPTABLES -A $chain -m conntrack --ctorigdst 192.168.1.1 -j ACCEPT && CONNTRACK_MATCH=Yes
|
|
|
|
if [ -n "$CONNTRACK_MATCH" ]; then
|
|
qt $IPTABLES -A $chain -m conntrack -p tcp --ctorigdstport 22 -j ACCEPT && NEW_CONNTRACK_MATCH=Yes
|
|
qt $IPTABLES -A $chain -m conntrack ! --ctorigdst 1.2.3.4 || OLD_CONNTRACK_MATCH=Yes
|
|
fi
|
|
|
|
if qt $IPTABLES -A $chain -p tcp -m multiport --dports 21,22 -j ACCEPT; then
|
|
MULTIPORT=Yes
|
|
qt $IPTABLES -A $chain -p tcp -m multiport --sports 60 -m multiport --dports 99 -j ACCEPT && KLUDEFREE=Yes
|
|
fi
|
|
|
|
qt $IPTABLES -A $chain -p tcp -m multiport --dports 21:22 -j ACCEPT && XMULTIPORT=Yes
|
|
qt $IPTABLES -A $chain -m policy --pol ipsec --mode tunnel --dir in -j ACCEPT && POLICY_MATCH=Yes
|
|
|
|
if qt $IPTABLES -A $chain -m physdev --physdev-out eth0 -j ACCEPT; then
|
|
PHYSDEV_MATCH=Yes
|
|
qt $IPTABLES -A $chain -m physdev --physdev-is-bridged --physdev-in eth0 --physdev-out eth0 -j ACCEPT && PHYSDEV_BRIDGE=Yes
|
|
if [ -z "${KLUDGEFREE}" ]; then
|
|
qt $IPTABLES -A $chain -m physdev --physdev-in eth0 -m physdev --physdev-out eth0 -j ACCEPT && KLUDGEFREE=Yes
|
|
fi
|
|
fi
|
|
|
|
if qt $IPTABLES -A $chain -m iprange --src-range 192.168.1.5-192.168.1.124 -j ACCEPT; then
|
|
IPRANGE_MATCH=Yes
|
|
if [ -z "${KLUDGEFREE}" ]; then
|
|
qt $IPTABLES -A $chain -m iprange --src-range 192.168.1.5-192.168.1.124 -m iprange --dst-range 192.168.1.5-192.168.1.124 -j ACCEPT && KLUDGEFREE=Yes
|
|
fi
|
|
fi
|
|
|
|
qt $IPTABLES -A $chain -m recent --update -j ACCEPT && RECENT_MATCH=Yes
|
|
qt $IPTABLES -A $chain -m owner --uid-owner 0 -j ACCEPT && OWNER_MATCH=Yes
|
|
|
|
if qt $IPTABLES -A $chain -m connmark --mark 2 -j ACCEPT; then
|
|
CONNMARK_MATCH=Yes
|
|
qt $IPTABLES -A $chain -m connmark --mark 2/0xFF -j ACCEPT && XCONNMARK_MATCH=Yes
|
|
fi
|
|
|
|
qt $IPTABLES -A $chain -p tcp -m ipp2p --edk -j ACCEPT && IPP2P_MATCH=Yes
|
|
if [ -n "$IPP2P_MATCH" ]; then
|
|
qt $IPTABLES -A $chain -p tcp -m ipp2p --ipp2p -j ACCEPT && OLD_IPP2P_MATCH=Yes
|
|
fi
|
|
|
|
qt $IPTABLES -A $chain -m length --length 10:20 -j ACCEPT && LENGTH_MATCH=Yes
|
|
qt $IPTABLES -A $chain -j REJECT --reject-with icmp-host-prohibited && ENHANCED_REJECT=Yes
|
|
|
|
qt $IPTABLES -A $chain -j ACCEPT -m comment --comment "This is a comment" && COMMENTS=Yes
|
|
|
|
if [ -n "$MANGLE_ENABLED" ]; then
|
|
qt $IPTABLES -t mangle -N $chain
|
|
|
|
if qt $IPTABLES -t mangle -A $chain -j MARK --set-mark 1; then
|
|
MARK=Yes
|
|
qt $IPTABLES -t mangle -A $chain -j MARK --and-mark 0xFF && XMARK=Yes
|
|
qt $IPTABLES -t mangle -A $chain -j MARK --set-mark 1/0xFF && EXMARK=Yes
|
|
fi
|
|
|
|
if qt $IPTABLES -t mangle -A $chain -j CONNMARK --save-mark; then
|
|
CONNMARK=Yes
|
|
qt $IPTABLES -t mangle -A $chain -j CONNMARK --save-mark --mask 0xFF && XCONNMARK=Yes
|
|
fi
|
|
|
|
qt $IPTABLES -t mangle -A $chain -j CLASSIFY --set-class 1:1 && CLASSIFY_TARGET=Yes
|
|
qt $IPTABLES -t mangle -A $chain -j IPMARK --addr src && IPMARK_TARGET=Yes
|
|
qt $IPTABLES -t mangle -A $chain -p tcp -j TPROXY --on-port 0 --tproxy-mark 1 && TPROXY_TARGET=Yes
|
|
qt $IPTABLES -t mangle -F $chain
|
|
qt $IPTABLES -t mangle -X $chain
|
|
qt $IPTABLES -t mangle -L FORWARD -n && MANGLE_FORWARD=Yes
|
|
fi
|
|
|
|
qt $IPTABLES -t raw -L -n && RAW_TABLE=Yes
|
|
qt $IPTABLES -t rawpost -L -n && RAWPOST_TABLE=Yes
|
|
|
|
if qt mywhich ipset; then
|
|
qt ipset -X $chain # Just in case something went wrong the last time
|
|
|
|
local have_ipset
|
|
|
|
if qt ipset -N $chain hash:ip family inet; then
|
|
IPSET_V5=Yes
|
|
have_ipset=Yes
|
|
elif qt ipset -N $chain iphash ; then
|
|
have_ipset=Yes
|
|
fi
|
|
|
|
if [ -n "$have_ipset" ]; then
|
|
if qt $IPTABLES -A $chain -m set --match-set $chain src -j ACCEPT; then
|
|
qt $IPTABLES -D $chain -m set --match-set $chain src -j ACCEPT
|
|
IPSET_MATCH=Yes
|
|
elif qt $IPTABLES -A $chain -m set --set $chain src -j ACCEPT; then
|
|
qt $IPTABLES -D $chain -m set --set $chain src -j ACCEPT
|
|
IPSET_MATCH=Yes
|
|
OLD_IPSET_MATCH=Yes
|
|
fi
|
|
qt ipset -X $chain
|
|
fi
|
|
fi
|
|
|
|
qt $IPTABLES -A $chain -m pkttype --pkt-type broadcast -j ACCEPT && USEPKTTYPE=Yes
|
|
qt $IPTABLES -A $chain -m addrtype --src-type BROADCAST -j ACCEPT && ADDRTYPE=Yes
|
|
qt $IPTABLES -A $chain -p tcp --tcp-flags SYN,RST SYN -m tcpmss --mss 1000:1500 -j ACCEPT && TCPMSS_MATCH=Yes
|
|
qt $IPTABLES -A $chain -m hashlimit --hashlimit-upto 4 --hashlimit-burst 5 --hashlimit-name $chain --hashlimit-mode dstip -j ACCEPT && HASHLIMIT_MATCH=Yes
|
|
if [ -z "$HASHLIMIT_MATCH" ]; then
|
|
qt $IPTABLES -A $chain -m hashlimit --hashlimit 4 --hashlimit-burst 5 --hashlimit-name $chain --hashlimit-mode dstip -j ACCEPT && OLD_HL_MATCH=Yes
|
|
HASHLIMIT_MATCH=$OLD_HL_MATCH
|
|
fi
|
|
qt $IPTABLES -A $chain -j NFQUEUE --queue-num 4 && NFQUEUE_TARGET=Yes
|
|
qt $IPTABLES -A $chain -m realm --realm 4 && REALM_MATCH=Yes
|
|
qt $IPTABLES -A $chain -m helper --helper "ftp" && HELPER_MATCH=Yes
|
|
qt $IPTABLES -A $chain -m connlimit --connlimit-above 8 -j DROP && CONNLIMIT_MATCH=Yes
|
|
qt $IPTABLES -A $chain -m time --timestart 23:00 -j DROP && TIME_MATCH=Yes
|
|
qt $IPTABLES -A $chain -g $chain1 && GOTO_TARGET=Yes
|
|
qt $IPTABLES -A $chain -j LOGMARK && LOGMARK_TARGET=Yes
|
|
qt $IPTABLES -A $chain -j LOG || LOG_TARGET=
|
|
qt $IPTABLES -A $chain -j ULOG && ULOG_TARGET=Yes
|
|
qt $IPTABLES -A $chain -j NFLOG && NFLOG_TARGET=Yes
|
|
qt $IPTABLES -A $chain -j MARK --set-mark 5 && MARK_ANYWHERE=Yes
|
|
qt $IPTABLES -A $chain -j ACCOUNT --addr 192.168.1.0/29 --tname $chain && ACCOUNT_TARGET=Yes
|
|
qt $IPTABLES -A $chain -j AUDIT --type drop && AUDIT_TARGET=Yes
|
|
qt $IPTABLES -A $chain -m condition --condition foo && CONDITION_MATCH=Yes
|
|
qt $IPTABLES -S INPUT && IPTABLES_S=Yes
|
|
qt $IPTABLES -F $chain
|
|
qt $IPTABLES -X $chain
|
|
qt $IPTABLES -F $chain1
|
|
qt $IPTABLES -X $chain1
|
|
|
|
[ -n "$TC" ] && $TC filter add flow help 2>&1 | grep -q ^Usage && FLOW_FILTER=Yes
|
|
[ -n "$TC" ] && $TC filter add basic help 2>&1 | grep -q ^Usage && BASIC_FILTER=Yes
|
|
[ -n "$IP" ] && $IP rule add help 2>&1 | grep -q /MASK && FWMARK_RT_MASK=Yes
|
|
|
|
CAPVERSION=$SHOREWALL_CAPVERSION
|
|
|
|
KERNELVERSION=$(uname -r 2> /dev/null | sed -e 's/-.*//')
|
|
|
|
case "$KERNELVERSION" in
|
|
*.*.*)
|
|
KERNELVERSION=$(printf "%d%02d%02d" $(echo $KERNELVERSION | sed -e 's/^\([0-9][0-9]*\)\.\([0-9][0-9]*\)\.\([0-9][0-9]*\).*$/\1 \2 \3/g'))
|
|
;;
|
|
*)
|
|
KERNELVERSION=$(printf "%d%02d00" $(echo $KERNELVERSION | sed -e 's/^\([0-9][0-9]*\)\.\([0-9][0-9]*\).*$/\1 \2/g'))
|
|
;;
|
|
esac
|
|
}
|
|
|
|
report_capabilities() {
|
|
report_capability() # $1 = Capability Description , $2 Capability Setting (if any)
|
|
{
|
|
local setting
|
|
setting=
|
|
|
|
[ "x$2" = "xYes" ] && setting="Available" || setting="Not available"
|
|
|
|
echo " " $1: $setting
|
|
}
|
|
|
|
if [ $VERBOSITY -gt 1 ]; then
|
|
echo "Shorewall has detected the following iptables/netfilter capabilities:"
|
|
report_capability "NAT" $NAT_ENABLED
|
|
report_capability "Packet Mangling" $MANGLE_ENABLED
|
|
report_capability "Multi-port Match" $MULTIPORT
|
|
[ -n "$MULTIPORT" ] && report_capability "Extended Multi-port Match" $XMULTIPORT
|
|
report_capability "Connection Tracking Match" $CONNTRACK_MATCH
|
|
if [ -n "$CONNTRACK_MATCH" ]; then
|
|
report_capability "Extended Connection Tracking Match Support" $NEW_CONNTRACK_MATCH
|
|
[ -n "$OLD_CONNTRACK_MATCH" ] && report_capability "Old Connection Tracking Match Syntax" $OLD_CONNTRACK_MATCH
|
|
fi
|
|
report_capability "Packet Type Match" $USEPKTTYPE
|
|
report_capability "Policy Match" $POLICY_MATCH
|
|
report_capability "Physdev Match" $PHYSDEV_MATCH
|
|
report_capability "Physdev-is-bridged Support" $PHYSDEV_BRIDGE
|
|
report_capability "Packet length Match" $LENGTH_MATCH
|
|
report_capability "IP range Match" $IPRANGE_MATCH
|
|
report_capability "Recent Match" $RECENT_MATCH
|
|
report_capability "Owner Match" $OWNER_MATCH
|
|
if [ -n "$IPSET_MATCH" ]; then
|
|
report_capability "Ipset Match" $IPSET_MATCH
|
|
[ -n "$OLD_IPSET_MATCH" ] && report_capability "OLD_Ipset Match" $OLD_IPSET_MATCH
|
|
fi
|
|
report_capability "CONNMARK Target" $CONNMARK
|
|
[ -n "$CONNMARK" ] && report_capability "Extended CONNMARK Target" $XCONNMARK
|
|
report_capability "Connmark Match" $CONNMARK_MATCH
|
|
[ -n "$CONNMARK_MATCH" ] && report_capability "Extended Connmark Match" $XCONNMARK_MATCH
|
|
report_capability "Raw Table" $RAW_TABLE
|
|
report_capability "Rawpost Table" $RAWPOST_TABLE
|
|
report_capability "IPP2P Match" $IPP2P_MATCH
|
|
[ -n "$OLD_IPP2P_MATCH" ] && report_capability "Old IPP2P Match Syntax" $OLD_IPP2P_MATCH
|
|
report_capability "CLASSIFY Target" $CLASSIFY_TARGET
|
|
report_capability "Extended REJECT" $ENHANCED_REJECT
|
|
report_capability "Repeat match" $KLUDGEFREE
|
|
report_capability "MARK Target" $MARK
|
|
[ -n "$MARK" ] && report_capability "Extended MARK Target" $XMARK
|
|
[ -n "$XMARK" ] && report_capability "Extended MARK Target 2" $EXMARK
|
|
report_capability "Mangle FORWARD Chain" $MANGLE_FORWARD
|
|
report_capability "Comments" $COMMENTS
|
|
report_capability "Address Type Match" $ADDRTYPE
|
|
report_capability "TCPMSS Match" $TCPMSS_MATCH
|
|
report_capability "Hashlimit Match" $HASHLIMIT_MATCH
|
|
[ -n "$OLD_HL_MATCH" ] && report_capability "Old Hashlimit Match" $OLD_HL_MATCH
|
|
report_capability "NFQUEUE Target" $NFQUEUE_TARGET
|
|
report_capability "Realm Match" $REALM_MATCH
|
|
report_capability "Helper Match" $HELPER_MATCH
|
|
report_capability "Connlimit Match" $CONNLIMIT_MATCH
|
|
report_capability "Time Match" $TIME_MATCH
|
|
report_capability "Goto Support" $GOTO_TARGET
|
|
report_capability "LOGMARK Target" $LOGMARK_TARGET
|
|
report_capability "IPMARK Target" $IPMARK_TARGET
|
|
report_capability "LOG Target" $LOG_TARGET
|
|
report_capability "ULOG Target" $ULOG_TARGET
|
|
report_capability "NFLOG Target" $NFLOG_TARGET
|
|
report_capability "Persistent SNAT" $PERSISTENT_SNAT
|
|
report_capability "TPROXY Target" $TPROXY_TARGET
|
|
report_capability "FLOW Classifier" $FLOW_FILTER
|
|
report_capability "fwmark route mask" $FWMARK_RT_MASK
|
|
report_capability "Mark in any table" $MARK_ANYWHERE
|
|
report_capability "Header Match" $HEADER_MATCH
|
|
report_capability "ACCOUNT Target" $ACCOUNT_TARGET
|
|
report_capability "AUDIT Target" $AUDIT_TARGET
|
|
report_capability "ipset V5" $IPSET_V5
|
|
report_capability "Condition Match" $CONDITION_MATCH
|
|
report_capability "iptables -S" $IPTABLES_S
|
|
report_capability "Basic Filter" $BASIC_FILTER
|
|
fi
|
|
|
|
[ -n "$PKTTYPE" ] || USEPKTTYPE=
|
|
|
|
}
|
|
|
|
report_capabilities1() {
|
|
report_capability1() # $1 = Capability
|
|
{
|
|
eval echo $1=\$$1
|
|
}
|
|
|
|
echo "#"
|
|
echo "# Shorewall $SHOREWALL_VERSION detected the following iptables/netfilter capabilities - $(date)"
|
|
echo "#"
|
|
report_capability1 NAT_ENABLED
|
|
report_capability1 MANGLE_ENABLED
|
|
report_capability1 MULTIPORT
|
|
report_capability1 XMULTIPORT
|
|
report_capability1 CONNTRACK_MATCH
|
|
report_capability1 NEW_CONNTRACK_MATCH
|
|
report_capability1 OLD_CONNTRACK_MATCH
|
|
report_capability1 USEPKTTYPE
|
|
report_capability1 POLICY_MATCH
|
|
report_capability1 PHYSDEV_MATCH
|
|
report_capability1 PHYSDEV_BRIDGE
|
|
report_capability1 LENGTH_MATCH
|
|
report_capability1 IPRANGE_MATCH
|
|
report_capability1 RECENT_MATCH
|
|
report_capability1 OWNER_MATCH
|
|
report_capability1 IPSET_MATCH
|
|
report_capability1 OLD_IPSET_MATCH
|
|
report_capability1 CONNMARK
|
|
report_capability1 XCONNMARK
|
|
report_capability1 CONNMARK_MATCH
|
|
report_capability1 XCONNMARK_MATCH
|
|
report_capability1 RAW_TABLE
|
|
report_capability1 RAWPOST_TABLE
|
|
report_capability1 IPP2P_MATCH
|
|
report_capability1 OLD_IPP2P_MATCH
|
|
report_capability1 CLASSIFY_TARGET
|
|
report_capability1 ENHANCED_REJECT
|
|
report_capability1 KLUDGEFREE
|
|
report_capability1 MARK
|
|
report_capability1 XMARK
|
|
report_capability1 EXMARK
|
|
report_capability1 MANGLE_FORWARD
|
|
report_capability1 COMMENTS
|
|
report_capability1 ADDRTYPE
|
|
report_capability1 TCPMSS_MATCH
|
|
report_capability1 HASHLIMIT_MATCH
|
|
report_capability1 OLD_HL_MATCH
|
|
report_capability1 NFQUEUE_TARGET
|
|
report_capability1 REALM_MATCH
|
|
report_capability1 HELPER_MATCH
|
|
report_capability1 CONNLIMIT_MATCH
|
|
report_capability1 TIME_MATCH
|
|
report_capability1 GOTO_TARGET
|
|
report_capability1 LOGMARK_TARGET
|
|
report_capability1 IPMARK_TARGET
|
|
report_capability1 LOG_TARGET
|
|
report_capability1 ULOG_TARGET
|
|
report_capability1 NFLOG_TARGET
|
|
report_capability1 PERSISTENT_SNAT
|
|
report_capability1 TPROXY_TARGET
|
|
report_capability1 FLOW_FILTER
|
|
report_capability1 FWMARK_RT_MASK
|
|
report_capability1 MARK_ANYWHERE
|
|
report_capability1 HEADER_MATCH
|
|
report_capability1 ACCOUNT_TARGET
|
|
report_capability1 AUDIT_TARGET
|
|
report_capability1 IPSET_V5
|
|
report_capability1 CONDITION_MATCH
|
|
report_capability1 IPTABLES_S
|
|
report_capability1 BASIC_FILTER
|
|
|
|
echo CAPVERSION=$SHOREWALL_CAPVERSION
|
|
echo KERNELVERSION=$KERNELVERSION
|
|
}
|