mirror of
https://gitlab.com/shorewall/code.git
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f45bcb1de0
git-svn-id: https://shorewall.svn.sourceforge.net/svnroot/shorewall/trunk@4631 fbd18981-670d-0410-9b5c-8dc0c1a9a2bb
1652 lines
33 KiB
Bash
Executable File
1652 lines
33 KiB
Bash
Executable File
#!/bin/sh
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#
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# Shorewall Lite Packet Filtering Firewall Control Program - V3.3
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#
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# This program is under GPL [http://www.gnu.org/copyleft/gpl.htm]
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#
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# (c) 2006 - Tom Eastep (teastep@shorewall.net)
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#
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# This file should be placed in /sbin/shorewall-lite.
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#
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# Shorewall 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., 675 Mass Ave, Cambridge, MA 02139, USA
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#
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# If an error occurs while starting or restarting the firewall, the
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# firewall is automatically stopped.
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#
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# Commands are:
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#
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# shorewall-lite dump Dumps all Shorewall-related information
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# for problem analysis
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# shorewall-lite start Starts the firewall
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# shorewall-lite restart Restarts the firewall
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# shorewall-lite stop Stops the firewall
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# shorewall-lite status Displays firewall status
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# shorewall-lite reset Resets iptables packet and
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# byte counts
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# shorewall-lite clear Open the floodgates by
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# removing all iptables rules
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# and setting the three permanent
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# chain policies to ACCEPT
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# shorewall-lite show <chain> [ <chain> ... ] Display the rules in each <chain> listed
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# shorewall-lite show log Print the last 20 log messages
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# shorewall-lite show connections Show the kernel's connection
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# tracking table
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# shorewall-lite show nat Display the rules in the nat table
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# shorewall-lite show {mangle|tos} Display the rules in the mangle table
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# shorewall-lite show tc Display traffic control info
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# shorewall-lite show classifiers Display classifiers
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# shorewall-lite show capabilities Display iptables/kernel capabilities
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# shorewall-lite version Display the installed version id
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# shorewall-lite logwatch [ refresh-interval ] Monitor the local log for Shorewall
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# messages.
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# shorewall-lite drop <address> ... Temporarily drop all packets from the
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# listed address(es)
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# shorewall-lite reject <address> ... Temporarily reject all packets from the
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# listed address(es)
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# shorewall-lite allow <address> ... Reenable address(es) previously
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# disabled with "drop" or "reject"
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# shorewall-lite save [ <file> ] Save the list of "rejected" and
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# "dropped" addresses so that it will
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# be automatically reinstated the
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# next time that Shorewall starts.
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# Save the current state so that 'shorewall
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# restore' can be used.
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#
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# shorewall-lite forget [ <file> ] Discard the data saved by 'shorewall save'
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#
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# shorewall-lite restore [ <file> ] Restore the state of the firewall from
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# previously saved information.
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#
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# shorewall-lite ipaddr { <address>/<cidr> | <address> <netmask> }
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#
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# Displays information about the network
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# defined by the argument[s]
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#
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# shorewall-lite iprange <address>-<address> Decomposes a range of IP addresses into
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# a list of network/host addresses.
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#
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# shorewall-lite ipdecimal { <address> | <integer> }
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#
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# Displays the decimal equivalent of an IP
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# address and vice versa.
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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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# 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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.*)
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error_message "ERROR: Reserved File Name: $RESTOREFILE"
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exit 2
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;;
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esac
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}
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#
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# Set the configuration variables from shorewall.conf
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#
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get_config() {
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[ -n "$PATH" ] || PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/bin:/usr/local/sbin
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[ -z "$LOGFILE" ] && LOGFILE=/var/log/messages
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if [ ! -f $LOGFILE ]; then
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echo "LOGFILE ($LOGFILE) does not exist!" >&2
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exit 2
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fi
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#
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# See if we have a real version of "tail" -- use separate redirection so
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# that ash (aka /bin/sh on LRP) doesn't crap
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#
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if ( tail -n5 $LOGFILE > /dev/null 2> /dev/null ) ; then
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realtail="Yes"
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else
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realtail=""
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fi
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[ -n "$FW" ] || FW=fw
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[ -n "LOGFORMAT" ] && LOGFORMAT="${LOGFORMAT%%%*}"
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[ -n "$LOGFORMAT" ] || LOGFORMAT="Shorewall:"
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export LOGFORMAT
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if [ -n "$IPTABLES" ]; then
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if [ ! -x "$IPTABLES" ]; then
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echo " ERROR: The program specified in IPTABLES does not exist or is not executable" >&2
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exit 2
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fi
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else
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IPTABLES=$(mywhich iptables 2> /dev/null)
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if [ -z "$IPTABLES" ] ; then
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echo " ERROR: Can't find iptables executable" >&2
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exit 2
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fi
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fi
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export IPTABLES
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if [ -n "$SHOREWALL_SHELL" ]; then
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if [ ! -x "$SHOREWALL_SHELL" ]; then
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echo " ERROR: The program specified in SHOREWALL_SHELL does not exist or is not executable" >&2
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exit 2
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fi
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fi
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[ -n "$RESTOREFILE" ] || RESTOREFILE=restore
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validate_restorefile RESTOREFILE
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export RESTOREFILE
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[ -n "${VERBOSITY:=2}" ]
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VERBOSE=$(($VERBOSE_OFFSET + $VERBOSITY))
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export VERBOSE
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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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# Display the last $1 packets logged
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#
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packet_log() # $1 = number of messages
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{
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local options
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[ -n "$realtail" ] && options="-n$1"
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if [ -n "$SHOWMACS" -o $VERBOSE -gt 2 ]; then
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grep 'IN=.* OUT=' $LOGFILE | \
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sed s/" kernel:"// | \
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sed s/" $host $LOGFORMAT"/" "/ | \
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tail $options
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else
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grep 'IN=.* OUT=' $LOGFILE | \
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sed s/" kernel:"// | \
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sed s/" $host $LOGFORMAT"/" "/ | \
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sed 's/MAC=.* SRC=/SRC=/' | \
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tail $options
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fi
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}
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#
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# Show traffic control information
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#
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show_tc() {
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show_one_tc() {
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local device=${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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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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ip link list | \
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while read inx interface details; do
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case $inx in
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[0-9]*)
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show_one_tc ${interface%:}
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;;
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*)
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;;
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esac
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done
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}
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#
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# Show classifier information
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#
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show_classifiers() {
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show_one_classifier() {
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local device=${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 link list | \
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while read inx interface details; do
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case $inx in
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[0-9]*)
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show_one_classifier ${interface%:}
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;;
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*)
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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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# Watch the Firewall Log
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#
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logwatch() # $1 = timeout -- if negative, prompt each time that
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# an 'interesting' packet count changes
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{
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host=$(echo $HOSTNAME | sed 's/\..*$//')
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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="$rejects"
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$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 $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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# Verify that we have a compiled firewall script
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#
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verify_firewall_script() {
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if [ ! -f $FIREWALL ]; then
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echo " ERROR: Shorewall Lite is not properly installed" >&2
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if [ -L $FIREWALL ]; then
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echo " $FIREWALL is a symbolic link to a" >&2
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echo " non-existant file" >&2
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else
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echo " The file $FIREWALL does not exist" >&2
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fi
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exit 2
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fi
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}
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#
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# Save currently running configuration
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#
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save_config() {
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verify_firewall_script
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if shorewall_is_started ; then
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[ -d ${VARDIR} ] || mkdir -p ${VARDIR}
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if [ -f $RESTOREPATH -a ! -x $RESTOREPATH ]; then
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echo " ERROR: $RESTOREPATH exists and is not a saved Shorewall configuration"
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else
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case $RESTOREFILE in
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save|restore-base)
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echo " ERROR: Reserved file name: $RESTOREFILE"
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;;
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*)
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if $IPTABLES -L dynamic -n > ${VARDIR}/save; then
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echo " Dynamic Rules Saved"
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if [ -f ${VARDIR}/.restore ]; then
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if iptables-save | iptablesbug > ${VARDIR}/restore-$$; then
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cp -f ${VARDIR}/.restore $RESTOREPATH
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mv -f ${VARDIR}/restore-$$ ${RESTOREPATH}-iptables
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chmod +x $RESTOREPATH
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echo " Currently-running Configuration Saved to $RESTOREPATH"
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rm -f ${RESTOREPATH}-ipsets
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case ${SAVE_IPSETS:-No} in
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[Yy][Ee][Ss])
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RESTOREPATH=${RESTOREPATH}-ipsets
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f=${VARDIR}/restore-$$
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echo "#!/bin/sh" > $f
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echo "#This ipset restore file generated $(date) by Shorewall $version" >> $f
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echo >> $f
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echo ". ${SHAREDIR}/lib.base" >> $f
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echo >> $f
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grep '^MODULE' ${VARDIR}/restore-base >> $f
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echo "reload_kernel_modules << __EOF__" >> $f
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grep 'loadmodule ip_set' ${VARDIR}/restore-base >> $f
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echo "__EOF__" >> $f
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echo >> $f
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echo "ipset -U :all: :all:" >> $f
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echo "ipset -F" >> $f
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echo "ipset -X" >> $f
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echo "ipset -R << __EOF__" >> $f
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ipset -S >> $f
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echo "__EOF__" >> $f
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mv -f $f $RESTOREPATH
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chmod +x $RESTOREPATH
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echo " Current Ipset Contents Saved to $RESTOREPATH"
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;;
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[Nn][Oo])
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;;
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*)
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echo " WARNING: Invalid value ($SAVE_IPSETS) for SAVE_IPSETS. Ipset contents not saved"
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;;
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esac
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else
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rm -f ${VARDIR}/restore-$$
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echo " ERROR: Currently-running Configuration Not Saved"
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fi
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else
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echo " ERROR: ${VARDIR}/.restored oes not exist"
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fi
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else
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echo "Error Saving the Dynamic Rules"
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fi
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;;
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esac
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fi
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else
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echo "Shorewall isn't started"
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fi
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}
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#
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# Start Command Executor
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#
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start_command() {
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local finished=0
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do_it() {
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local rc=0
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[ -n "$nolock" ] || mutex_on
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|
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if [ -x ${LITEDIR}/firewall ]; then
|
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${LITEDIR}/firewall $debugging start
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rc=$?
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else
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error_message "${LITEDIR}/firewall is missing or is not executable"
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rc=2
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fi
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[ -n "$nolock" ] || mutex_off
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exit $rc
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}
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verify_firewall_script
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|
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if shorewall_is_started; then
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error_message "Shorewall is already running"
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exit 1
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fi
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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 $option in
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-)
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finished=1
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option=
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;;
|
|
f*)
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FAST=Yes
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option=${option#f}
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;;
|
|
*)
|
|
usage 1
|
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;;
|
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esac
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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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|
|
case $# in
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0)
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;;
|
|
1)
|
|
[ -n "$SHOREWALL_DIR" -o -n "$FAST" ] && usage 2
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|
|
if [ ! -d $1 ]; then
|
|
if [ -e $1 ]; then
|
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echo "$1 is not a directory" >&2 && exit 2
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|
else
|
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echo "Directory $1 does not exist" >&2 && exit 2
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|
fi
|
|
fi
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|
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SHOREWALL_DIR=$
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export SHOREWALL_DIR
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;;
|
|
*)
|
|
usage 1
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;;
|
|
esac
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|
|
export NOROUTES
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|
|
|
if [ -n "$FAST" ]; then
|
|
if qt mywhich make; then
|
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#
|
|
# RESTOREFILE is exported by get_config()
|
|
#
|
|
make -qf ${CONFDIR}/Makefile || FAST=
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|
fi
|
|
|
|
if [ -n "$FAST" ]; then
|
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|
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RESTOREPATH=${VARDIR}/$RESTOREFILE
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|
|
if [ -x $RESTOREPATH ]; then
|
|
if [ -x ${RESTOREPATH}-ipsets ]; then
|
|
echo Restoring Ipsets...
|
|
#
|
|
# We must purge iptables to be sure that there are no
|
|
# references to ipsets
|
|
#
|
|
iptables -F
|
|
iptables -X
|
|
$SHOREWALL_SHELL ${RESTOREPATH}-ipsets
|
|
fi
|
|
|
|
echo Restoring Shorewall Lite...
|
|
$SHOREWALL_SHELL $RESTOREPATH restore
|
|
date > ${VARDIR}/restarted
|
|
progress_message3 Shorewall Lite restored from $RESTOREPATH
|
|
else
|
|
do_it
|
|
fi
|
|
else
|
|
do_it
|
|
fi
|
|
else
|
|
do_it
|
|
fi
|
|
}
|
|
|
|
#
|
|
# Restart Command Executor
|
|
#
|
|
restart_command() {
|
|
local finished=0 rc=0
|
|
|
|
verify_firewall_script
|
|
|
|
while [ $finished -eq 0 -a $# -gt 0 ]; do
|
|
option=$1
|
|
case $option in
|
|
-*)
|
|
option=${option#-}
|
|
|
|
while [ -n "$option" ]; do
|
|
case $option in
|
|
-)
|
|
finished=1
|
|
option=
|
|
;;
|
|
n*)
|
|
NOROUTES=Yes
|
|
option=${option#n}
|
|
;;
|
|
*)
|
|
usage 1
|
|
;;
|
|
esac
|
|
done
|
|
shift
|
|
;;
|
|
*)
|
|
finished=1
|
|
;;
|
|
esac
|
|
done
|
|
|
|
case $# in
|
|
0)
|
|
;;
|
|
1)
|
|
[ -n "$SHOREWALL_DIR" ] && usage 2
|
|
|
|
if [ ! -d $1 ]; then
|
|
if [ -e $1 ]; then
|
|
echo "$1 is not a directory" >&2 && exit 2
|
|
else
|
|
echo "Directory $1 does not exist" >&2 && exit 2
|
|
fi
|
|
fi
|
|
|
|
SHOREWALL_DIR=$1
|
|
export SHOREWALL_DIR
|
|
;;
|
|
*)
|
|
usage 1
|
|
;;
|
|
esac
|
|
|
|
export NOROUTES
|
|
|
|
[ -n "$nolock" ] || mutex_on
|
|
|
|
if [ -x ${LITEDIR}/firewall ]; then
|
|
$SHOREWALL_SHELL ${LITEDIR}/firewall $debugging restart
|
|
rc=$?
|
|
else
|
|
error_message "${LITEDIR}/firewall is missing or is not executable"
|
|
rc=2
|
|
fi
|
|
|
|
[ -n "$nolock" ] || mutex_off
|
|
return $rc
|
|
}
|
|
|
|
#
|
|
# Show Command Executor
|
|
#
|
|
show_command() {
|
|
local finished=0
|
|
|
|
while [ $finished -eq 0 -a $# -gt 0 ]; do
|
|
option=$1
|
|
case $option in
|
|
-*)
|
|
option=${option#-}
|
|
|
|
while [ -n "$option" ]; do
|
|
case $option in
|
|
-)
|
|
finished=1
|
|
option=
|
|
;;
|
|
v*)
|
|
VERBOSE=$(($VERBOSE + 1 ))
|
|
option=${option#v}
|
|
;;
|
|
x*)
|
|
IPT_OPTIONS="-xnv"
|
|
option=${option#x}
|
|
;;
|
|
m*)
|
|
SHOWMACS=Yes
|
|
option=${option#m}
|
|
;;
|
|
f*)
|
|
FILEMODE=Yes
|
|
option=${option#f}
|
|
;;
|
|
*)
|
|
usage 1
|
|
;;
|
|
esac
|
|
done
|
|
shift
|
|
;;
|
|
*)
|
|
finished=1
|
|
;;
|
|
esac
|
|
done
|
|
|
|
[ -n "$debugging" ] && set -x
|
|
case "$1" in
|
|
connections)
|
|
[ $# -gt 1 ] && usage 1
|
|
echo "Shorewall Lite $version Connections at $HOSTNAME - $(date)"
|
|
echo
|
|
cat /proc/net/ip_conntrack
|
|
;;
|
|
nat)
|
|
[ $# -gt 1 ] && usage 1
|
|
echo "Shorewall Lite $version NAT Table at $HOSTNAME - $(date)"
|
|
echo
|
|
show_reset
|
|
$IPTABLES -t nat -L $IPT_OPTIONS
|
|
;;
|
|
tos|mangle)
|
|
[ $# -gt 1 ] && usage 1
|
|
echo "Shorewall Lite $version Mangle Table at $HOSTNAME - $(date)"
|
|
echo
|
|
show_reset
|
|
$IPTABLES -t mangle -L $IPT_OPTIONS
|
|
;;
|
|
log)
|
|
[ $# -gt 1 ] && usage 1
|
|
echo "Shorewall Lite $version Log ($LOGFILE) at $HOSTNAME - $(date)"
|
|
echo
|
|
show_reset
|
|
host=$(echo $HOSTNAME | sed 's/\..*$//')
|
|
packet_log 20
|
|
;;
|
|
tc)
|
|
[ $# -gt 1 ] && usage 1
|
|
echo "Shorewall Lite $version Traffic Control at $HOSTNAME - $(date)"
|
|
echo
|
|
show_tc
|
|
;;
|
|
classifiers)
|
|
[ $# -gt 1 ] && usage 1
|
|
echo "Shorewall Lite $version Clasifiers at $HOSTNAME - $(date)"
|
|
echo
|
|
show_classifiers
|
|
;;
|
|
zones)
|
|
[ $# -gt 1 ] && usage 1
|
|
if [ -f ${VARDIR}/zones ]; then
|
|
echo "Shorewall Lite $version Zones at $HOSTNAME - $(date)"
|
|
echo
|
|
while read zone type hosts; do
|
|
echo "$zone ($type)"
|
|
for host in $hosts; do
|
|
echo " $host"
|
|
done
|
|
done < ${VARDIR}/zones
|
|
echo
|
|
else
|
|
echo " ERROR: ${VARDIR}/zones does not exist" >&2
|
|
exit 1
|
|
fi
|
|
;;
|
|
capabilities)
|
|
[ $# -gt 1 ] && usage 1
|
|
determine_capabilities
|
|
VERBOSE=2
|
|
if [ -n "$FILEMODE" ]; then
|
|
report_capabilities1
|
|
else
|
|
report_capabilities
|
|
fi
|
|
;;
|
|
config)
|
|
. ${SHAREDIR}/configpath
|
|
echo "Default CONFIG_PATH is $CONFIG_PATH"
|
|
echo "LITEDIR is $LITEDIR"
|
|
;;
|
|
*)
|
|
echo "Shorewall Lite $version $([ $# -gt 0 ] && 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
|
|
}
|
|
#
|
|
# Dump Command Executor
|
|
#
|
|
dump_command() {
|
|
local finished=0
|
|
|
|
while [ $finished -eq 0 -a $# -gt 0 ]; do
|
|
option=$1
|
|
case $option in
|
|
-*)
|
|
option=${option#-}
|
|
|
|
while [ -n "$option" ]; do
|
|
case $option in
|
|
-)
|
|
finished=1
|
|
option=
|
|
;;
|
|
x*)
|
|
IPT_OPTIONS="-xnv"
|
|
option=${option#x}
|
|
;;
|
|
*)
|
|
usage 1
|
|
;;
|
|
esac
|
|
done
|
|
shift
|
|
;;
|
|
*)
|
|
finished=1
|
|
;;
|
|
esac
|
|
done
|
|
|
|
[ -n "$debugging" ] && set -x
|
|
[ $# -eq 0 ] || usage 1
|
|
clear_term
|
|
echo "Shorewall Lite $version Dump at $HOSTNAME - $(date)"
|
|
echo
|
|
show_reset
|
|
host=$(echo $HOSTNAME | sed 's/\..*$//')
|
|
$IPTABLES -L $IPT_OPTIONS
|
|
|
|
heading "Log ($LOGFILE)"
|
|
packet_log 20
|
|
|
|
heading "NAT Table"
|
|
$IPTABLES -t nat -L $IPT_OPTIONS
|
|
|
|
heading "Mangle Table"
|
|
$IPTABLES -t mangle -L $IPT_OPTIONS
|
|
|
|
heading "Conntrack Table"
|
|
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 $table
|
|
done
|
|
else
|
|
heading "Routing Table"
|
|
ip route ls
|
|
fi
|
|
|
|
heading "ARP"
|
|
arp -na
|
|
|
|
if qt mywhich lsmod; then
|
|
heading "Modules"
|
|
lsmod | grep -E '^ip_|^ipt_|^iptable_'
|
|
fi
|
|
|
|
determine_capabilities
|
|
echo
|
|
report_capabilities
|
|
|
|
if [ -n "$TC_ENABLED" ]; then
|
|
heading "Traffic Control"
|
|
show_tc
|
|
heading "TC Filters"
|
|
show_classifiers
|
|
fi
|
|
}
|
|
|
|
#
|
|
# Restore Comand Executor
|
|
#
|
|
restore_command() {
|
|
local finished=0
|
|
|
|
while [ $finished -eq 0 -a $# -gt 0 ]; do
|
|
option=$1
|
|
case $option in
|
|
-*)
|
|
option=${option#-}
|
|
|
|
while [ -n "$option" ]; do
|
|
case $option in
|
|
-)
|
|
finished=1
|
|
option=
|
|
;;
|
|
n*)
|
|
NOROUTES=Yes
|
|
option=${option#n}
|
|
;;
|
|
*)
|
|
usage 1
|
|
;;
|
|
esac
|
|
done
|
|
shift
|
|
;;
|
|
*)
|
|
finished=1
|
|
;;
|
|
esac
|
|
done
|
|
|
|
case $# in
|
|
0)
|
|
;;
|
|
1)
|
|
RESTOREFILE="$1"
|
|
validate_restorefile '<restore file>'
|
|
;;
|
|
*)
|
|
usage 1
|
|
;;
|
|
esac
|
|
|
|
RESTOREPATH=${VARDIR}/$RESTOREFILE
|
|
|
|
export NOROUTES
|
|
|
|
[ -n "$nolock" ] || mutex_on
|
|
|
|
if [ -x $RESTOREPATH ]; then
|
|
if [ -x ${RESTOREPATH}-ipsets ] ; then
|
|
echo Restoring Ipsets...
|
|
iptables -F
|
|
iptables -X
|
|
$SHOREWALL_SHELL ${RESTOREPATH}-ipsets
|
|
fi
|
|
|
|
progress_message3 "Restoring Shorewall Lite..."
|
|
$SHOREWALL_SHELL $RESTOREPATH restore && echo "Shorewall Lite restored from ${VARDIR}/$RESTOREFILE"
|
|
[ -n "$nolock" ] || mutex_off
|
|
else
|
|
echo "File ${VARDIR}/$RESTOREFILE: file not found"
|
|
[ -n "$nolock" ] || mutex_off
|
|
exit 2
|
|
fi
|
|
}
|
|
#
|
|
# 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] [ -q ] [ -v ] [ -t ] <command>"
|
|
echo "where <command> is one of:"
|
|
echo " allow <address> ..."
|
|
echo " clear"
|
|
echo " drop <address> ..."
|
|
echo " dump [ -x ]"
|
|
echo " forget [ <file name> ]"
|
|
echo " help [ <command > | host | address ]"
|
|
echo " hits"
|
|
echo " ipcalc { <address>/<vlsm> | <address> <netmask> }"
|
|
echo " ipdecimal { <address> | <integer> }"
|
|
echo " iprange <address>-<address>"
|
|
echo " logdrop <address> ..."
|
|
echo " logreject <address> ..."
|
|
echo " logwatch [<refresh interval>]"
|
|
echo " reject <address> ..."
|
|
echo " reset"
|
|
echo " restart [ -n ] [ <directory> ]"
|
|
echo " restore [ -n ] [ <file name> ]"
|
|
echo " save [ <file name> ]"
|
|
echo " show [ -x ] [ -m ] [ -f ] [<chain> [ <chain> ... ]|capabilities|classifiers|config|connections|log|mangle|nat|tc|zones]"
|
|
echo " start [ -f ] [ -n ] [ <directory> ]"
|
|
echo " stop"
|
|
echo " status"
|
|
echo " version"
|
|
echo
|
|
exit $1
|
|
}
|
|
|
|
#
|
|
# 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 "$@"
|
|
echo
|
|
}
|
|
|
|
#
|
|
# Create the appropriate -q option to pass onward
|
|
#
|
|
make_verbose() {
|
|
local v=$VERBOSE_OFFSET option=-
|
|
|
|
if [ $VERBOSE_OFFSET -gt 0 ]; then
|
|
while [ $v -gt 0 ]; do
|
|
option="${option}v"
|
|
v=$(($v - 1))
|
|
done
|
|
|
|
echo $option
|
|
elif [ $VERBOSE_OFFSET -lt 0 ]; then
|
|
while [ $v -lt 0 ]; do
|
|
option="${option}q"
|
|
v=$(($v + 1))
|
|
done
|
|
|
|
echo $option
|
|
fi
|
|
}
|
|
|
|
#
|
|
# 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=
|
|
IPT_OPTIONS="-nv"
|
|
FAST=
|
|
VERBOSE_OFFSET=0
|
|
NOROUTES=
|
|
EXPORT=
|
|
export TIMESTAMP=
|
|
noroutes=
|
|
|
|
finished=0
|
|
|
|
while [ $finished -eq 0 ]; do
|
|
[ $# -eq 0 ] && usage 1
|
|
option=$1
|
|
case $option in
|
|
-)
|
|
finished=1
|
|
;;
|
|
-*)
|
|
option=${option#-}
|
|
|
|
[ -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=$2
|
|
option=
|
|
shift
|
|
;;
|
|
e*)
|
|
EXPORT=Yes
|
|
option=${option#e}
|
|
;;
|
|
x*)
|
|
IPT_OPTIONS="-xnv"
|
|
option=${option#x}
|
|
;;
|
|
q*)
|
|
VERBOSE_OFFSET=$(($VERBOSE_OFFSET - 1 ))
|
|
option=${option#q}
|
|
;;
|
|
f*)
|
|
FAST=Yes
|
|
option=${option#f}
|
|
;;
|
|
v*)
|
|
VERBOSE_OFFSET=$(($VERBOSE_OFFSET + 1 ))
|
|
option=${option#v}
|
|
;;
|
|
n*)
|
|
NOROUTES=Yes
|
|
option=${option#n}
|
|
;;
|
|
t*)
|
|
TIMESTAMP=Yes
|
|
option=${option#t}
|
|
;;
|
|
-)
|
|
finished=1
|
|
option=
|
|
;;
|
|
*)
|
|
usage 1
|
|
;;
|
|
esac
|
|
done
|
|
shift
|
|
;;
|
|
*)
|
|
finished=1
|
|
;;
|
|
esac
|
|
done
|
|
|
|
if [ $# -eq 0 ]; then
|
|
usage 1
|
|
fi
|
|
|
|
[ -n "$SHOREWALL_DIR" ] && export SHOREWALL_DIR
|
|
PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/bin:/usr/local/sbin
|
|
MUTEX_TIMEOUT=
|
|
|
|
SHAREDIR=/usr/share/shorewall-lite
|
|
VARDIR=/var/lib/shorewall-lite
|
|
CONFDIR=/etc/shorewall-lite
|
|
export PRODUCT="Shorewall Lite"
|
|
|
|
FUNCTIONS=$SHAREDIR/lib.base
|
|
VERSION_FILE=$SHAREDIR/version
|
|
HELP=$SHAREDIR/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
|
|
|
|
[ -n "${LITEDIR}" -a -f ${LITEDIR}/firewall.conf ] && . ${LITEDIR}/firewall.conf
|
|
|
|
ensure_config_path
|
|
export CONFIG_PATH
|
|
|
|
[ -n "$LITEDIR" ] || { echo " ERROR: LITEDIR not defined in ${SHAREDIR}/configpath" >&2; exit 2; }
|
|
|
|
get_config
|
|
|
|
FIREWALL=$LITEDIR/firewall
|
|
|
|
if [ -f $VERSION_FILE ]; then
|
|
version=$(cat $VERSION_FILE)
|
|
else
|
|
echo " ERROR: Shorewall Lite is not properly installed" >&2
|
|
echo " The file $VERSION_FILE does not exist" >&2
|
|
exit 1
|
|
fi
|
|
|
|
banner="Shorewall Lite $version Status at $HOSTNAME -"
|
|
|
|
case $(echo -e) in
|
|
-e*)
|
|
RING_BELL="echo \a"
|
|
;;
|
|
*)
|
|
RING_BELL="echo -e \a"
|
|
;;
|
|
esac
|
|
|
|
case $(echo -n "Testing") in
|
|
-n*)
|
|
ECHO_N=
|
|
;;
|
|
*)
|
|
ECHO_N=-n
|
|
;;
|
|
esac
|
|
|
|
COMMAND=$1
|
|
|
|
case "$COMMAND" in
|
|
start)
|
|
shift
|
|
start_command $@
|
|
;;
|
|
stop|reset|clear)
|
|
[ $# -ne 1 ] && usage 1
|
|
verify_firewall_script
|
|
export NOROUTES
|
|
exec $SHOREWALL_SHELL $FIREWALL $debugging $nolock $COMMAND
|
|
;;
|
|
restart)
|
|
shift
|
|
restart_command $@
|
|
;;
|
|
show|list)
|
|
shift
|
|
show_command $@
|
|
;;
|
|
status)
|
|
[ $# -eq 1 ] || usage 1
|
|
echo "Shorewall Lite $version Status at $HOSTNAME - $(date)"
|
|
echo
|
|
if shorewall_is_started ; then
|
|
echo "Shorewall Lite is running"
|
|
status=0
|
|
else
|
|
echo "Shorewall Lite is stopped"
|
|
status=4
|
|
fi
|
|
|
|
if [ -f ${VARDIR}/state ]; then
|
|
state="$(cat ${VARDIR}/state)"
|
|
case $state in
|
|
Stopped*|Clear*)
|
|
status=3
|
|
;;
|
|
esac
|
|
else
|
|
state=Unknown
|
|
fi
|
|
echo "State:$state"
|
|
echo
|
|
exit $status
|
|
;;
|
|
dump)
|
|
shift
|
|
dump_command $@
|
|
;;
|
|
hits)
|
|
[ -n "$debugging" ] && set -x
|
|
[ $# -eq 1 ] || usage 1
|
|
clear_term
|
|
echo "Shorewall Lite $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 | \
|
|
while read count address month day; do
|
|
printf '%7d %-15s %3s %2d\n' $count $address $month $day
|
|
done
|
|
|
|
echo ""
|
|
|
|
echo " HITS IP PORT"
|
|
echo " ---- --------------- -----"
|
|
grep "$LOGFORMAT" $LOGFILE | sed 's/\(.*SRC=\)\(.*\)\( DST=.*DPT=\)\([0-9]\{1,5\}\)\(.*\)/\2 \4/
|
|
t
|
|
s/\(.*SRC=\)\(.*\)\( DST=.*\)/\2/' | sort | uniq -c | sort -rn | \
|
|
while read count address port; do
|
|
printf '%7d %-15s %d\n' $count $address $port
|
|
done
|
|
|
|
echo ""
|
|
|
|
echo " HITS DATE"
|
|
echo " ---- ------"
|
|
grep "$LOGFORMAT" $LOGFILE | sed 's/\(.\{6\}\)\(.*\)/\1/' | sort | uniq -c | sort -rn | \
|
|
while read count month day; do
|
|
printf '%7d %3s %2d\n' $count $month $day
|
|
done
|
|
|
|
echo ""
|
|
|
|
echo " HITS PORT SERVICE(S)"
|
|
echo " ---- ----- ----------"
|
|
grep "$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 | 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
|
|
;;
|
|
version)
|
|
echo $version Lite
|
|
;;
|
|
logwatch)
|
|
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 $option in
|
|
v*)
|
|
VERBOSE=$(($VERBOSE + 1 ))
|
|
option=${option#v}
|
|
;;
|
|
q*)
|
|
VERBOSE=$(($VERBOSE - 1 ))
|
|
option=${option#q}
|
|
;;
|
|
m*)
|
|
SHOWMACS=Yes
|
|
option=${option#m}
|
|
;;
|
|
-)
|
|
finished=1
|
|
option=
|
|
;;
|
|
*)
|
|
usage 1
|
|
;;
|
|
esac
|
|
done
|
|
shift
|
|
;;
|
|
*)
|
|
finished=1
|
|
;;
|
|
esac
|
|
done
|
|
|
|
[ -n "$debugging" ] && set -x
|
|
|
|
if [ $# -eq 1 ]; then
|
|
logwatch $1
|
|
elif [ $# -eq 0 ]; then
|
|
logwatch 30
|
|
else
|
|
usage 1
|
|
fi
|
|
;;
|
|
drop)
|
|
[ -n "$debugging" ] && set -x
|
|
[ $# -eq 1 ] && usage 1
|
|
if shorewall_is_started ; then
|
|
mutex_on
|
|
while [ $# -gt 1 ]; do
|
|
shift
|
|
qt $IPTABLES -D dynamic -s $1 -j reject
|
|
qt $IPTABLES -D dynamic -s $1 -j DROP
|
|
qt $IPTABLES -D dynamic -s $1 -j logreject
|
|
qt $IPTABLES -D dynamic -s $1 -j logdrop
|
|
$IPTABLES -A dynamic -s $1 -j DROP || break 1
|
|
echo "$1 Dropped"
|
|
done
|
|
mutex_off
|
|
else
|
|
error_message "ERROR: Shorewall is not started"
|
|
exit 2
|
|
fi
|
|
;;
|
|
logdrop)
|
|
[ -n "$debugging" ] && set -x
|
|
[ $# -eq 1 ] && usage 1
|
|
if shorewall_is_started ; then
|
|
mutex_on
|
|
while [ $# -gt 1 ]; do
|
|
shift
|
|
qt $IPTABLES -D dynamic -s $1 -j reject
|
|
qt $IPTABLES -D dynamic -s $1 -j DROP
|
|
qt $IPTABLES -D dynamic -s $1 -j logreject
|
|
qt $IPTABLES -D dynamic -s $1 -j logdrop
|
|
$IPTABLES -A dynamic -s $1 -j logdrop || break 1
|
|
echo "$1 Dropped"
|
|
done
|
|
mutex_off
|
|
else
|
|
error_message "ERROR: Shorewall is not started"
|
|
exit 2
|
|
fi
|
|
;;
|
|
reject|logreject)
|
|
[ -n "$debugging" ] && set -x
|
|
[ $# -eq 1 ] && usage 1
|
|
if shorewall_is_started ; then
|
|
mutex_on
|
|
while [ $# -gt 1 ]; do
|
|
shift
|
|
qt $IPTABLES -D dynamic -s $1 -j reject
|
|
qt $IPTABLES -D dynamic -s $1 -j DROP
|
|
qt $IPTABLES -D dynamic -s $1 -j logreject
|
|
qt $IPTABLES -D dynamic -s $1 -j logdrop
|
|
$IPTABLES -A dynamic -s $1 -j $COMMAND || break 1
|
|
echo "$1 Rejected"
|
|
done
|
|
mutex_off
|
|
else
|
|
error_message "ERROR: Shorewall is not started"
|
|
exit 2
|
|
fi
|
|
;;
|
|
allow)
|
|
[ -n "$debugging" ] && set -x
|
|
[ $# -eq 1 ] && usage 1
|
|
if shorewall_is_started ; then
|
|
mutex_on
|
|
while [ $# -gt 1 ]; do
|
|
shift
|
|
if qt $IPTABLES -D dynamic -s $1 -j reject ||\
|
|
qt $IPTABLES -D dynamic -s $1 -j DROP ||\
|
|
qt $IPTABLES -D dynamic -s $1 -j logdrop ||\
|
|
qt $IPTABLES -D dynamic -s $1 -j logreject
|
|
then
|
|
echo "$1 Allowed"
|
|
else
|
|
echo "$1 Not Dropped or Rejected"
|
|
fi
|
|
done
|
|
mutex_off
|
|
else
|
|
error_message "ERROR: Shorewall is not started"
|
|
exit 2
|
|
fi
|
|
;;
|
|
save)
|
|
[ -n "$debugging" ] && set -x
|
|
|
|
case $# in
|
|
1)
|
|
;;
|
|
2)
|
|
RESTOREFILE="$2"
|
|
validate_restorefile '<restore file>'
|
|
;;
|
|
*)
|
|
usage 1
|
|
;;
|
|
esac
|
|
|
|
RESTOREPATH=${VARDIR}/$RESTOREFILE
|
|
|
|
[ "$nolock" ] || mutex_on
|
|
|
|
save_config
|
|
|
|
[ "$nolock" ] || mutex_off
|
|
;;
|
|
forget)
|
|
case $# in
|
|
1)
|
|
;;
|
|
2)
|
|
RESTOREFILE="$2"
|
|
validate_restorefile '<restore file>'
|
|
;;
|
|
*)
|
|
usage 1
|
|
;;
|
|
esac
|
|
|
|
|
|
RESTOREPATH=${VARDIR}/$RESTOREFILE
|
|
|
|
if [ -x $RESTOREPATH ]; then
|
|
|
|
if [ -x ${RESTOREPATH}-ipsets ]; then
|
|
rm -f ${RESTOREPATH}-ipsets
|
|
echo " ${RESTOREPATH}-ipsets removed"
|
|
fi
|
|
|
|
rm -f $RESTOREPATH
|
|
rm -f ${RESTOREPATH}-iptables
|
|
echo " $RESTOREPATH removed"
|
|
elif [ -f $RESTOREPATH ]; then
|
|
echo " $RESTOREPATH exists and is not a saved Shorewall configuration"
|
|
fi
|
|
rm -f ${VARDIR}/save
|
|
;;
|
|
ipcalc)
|
|
[ -n "$debugging" ] && set -x
|
|
if [ $# -eq 2 ]; then
|
|
address=${2%/*}
|
|
vlsm=${2#*/}
|
|
elif [ $# -eq 3 ]; then
|
|
address=$2
|
|
vlsm=$(ip_vlsm $3)
|
|
else
|
|
usage 1
|
|
fi
|
|
|
|
[ -z "$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 $2
|
|
;;
|
|
*)
|
|
usage 1
|
|
;;
|
|
esac
|
|
;;
|
|
ipdecimal)
|
|
[ -n "$debugging" ] && set -x
|
|
case $2 in
|
|
*.*.*.*)
|
|
echo " $(decodeaddr $2)"
|
|
;;
|
|
*)
|
|
echo " $(encodeaddr $2)"
|
|
;;
|
|
esac
|
|
;;
|
|
restore)
|
|
shift
|
|
restore_command $@
|
|
;;
|
|
call)
|
|
[ -n "$debugging" ] && set -x
|
|
#
|
|
# Undocumented way to call functions in ${SHAREDIR}/functions directly
|
|
#
|
|
shift
|
|
$@
|
|
;;
|
|
help)
|
|
shift
|
|
[ $# -ne 1 ] && usage 1
|
|
help $@
|
|
;;
|
|
*)
|
|
usage 1
|
|
;;
|
|
|
|
esac
|