FreeBSD-5.3/etc/periodic/security/500.ipfwdenied

#!/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
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# 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
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# $FreeBSD: src/etc/periodic/security/500.ipfwdenied,v 1.5 2003/06/30 22:06:26 mtm Exp $
#

# 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

. /etc/periodic/security/security.functions

rc=0

case "$daily_status_security_ipfwdenied_enable" in
    [Yy][Ee][Ss])
	TMP=`mktemp -t security`
	if ipfw -a l 2>/dev/null | egrep "deny|reset|unreach" > ${TMP}; then
	  check_diff new_only ipfw ${TMP} "${host} ipfw denied packets:"
	fi
	rc=$?
	rm -f ${TMP};;
    *)	rc=0;;
esac

exit $rc