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#!/bin/sh -
#
# Copyright (c) 2001 The FreeBSD Project
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# $FreeBSD$
#
# Show denied packets
#
# If there is a global system configuration file, suck it in.
#
if [ -r /etc/defaults/periodic.conf ]
then
. /etc/defaults/periodic.conf
source_periodic_confs
fi
LOG="${daily_status_security_logdir}"
rc=0
case "$daily_status_security_ipfwdenied_enable" in
[Yy][Ee][Ss])
TMP=`mktemp ${TMPDIR:-/tmp}/security.XXXXXXXXXX`
if ipfw -a l 2>/dev/null | egrep "deny|reset|unreach" > ${TMP}; then
if [ ! -f ${LOG}/ipfw.today ]; then
rc=1
echo ""
echo "No ${LOG}/ipfw.today"
cp ${TMP} ${LOG}/ipfw.today || rc=3
fi
if ! cmp ${LOG}/ipfw.today ${TMP} >/dev/null; then
[ $rc -lt 1 ] && rc=1
echo ""
echo "${host} denied packets:"
diff -b ${LOG}/ipfw.today ${TMP} | egrep "^>"
mv ${LOG}/ipfw.today ${LOG}/ipfw.yesterday || rc=3
mv ${TMP} ${LOG}/ipfw.today || rc=3
fi
fi
rm -f ${TMP};;
*) rc=0;;
esac
exit $rc
|
