xref: /freebsd/usr.sbin/periodic/etc/security/550.ipfwlimit (revision 2e3f49888ec8851bafb22011533217487764fdb0)
1#!/bin/sh -
2#
3# Copyright (c) 2001  The FreeBSD Project
4# All rights reserved.
5#
6# Redistribution and use in source and binary forms, with or without
7# modification, are permitted provided that the following conditions
8# are met:
9# 1. Redistributions of source code must retain the above copyright
10#    notice, this list of conditions and the following disclaimer.
11# 2. Redistributions in binary form must reproduce the above copyright
12#    notice, this list of conditions and the following disclaimer in the
13#    documentation and/or other materials provided with the distribution.
14#
15# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25# SUCH DAMAGE.
26#
27#
28
29# Show ipfw rules which have reached the log limit
30#
31
32# If there is a global system configuration file, suck it in.
33#
34if [ -r /etc/defaults/periodic.conf ]
35then
36    . /etc/defaults/periodic.conf
37    source_periodic_confs
38fi
39
40security_daily_compat_var security_status_ipfwlimit_enable
41
42rc=0
43
44if check_yesno_period security_status_ipfwlimit_enable
45then
46	IPFW_VERBOSE=`sysctl -n net.inet.ip.fw.verbose 2> /dev/null`
47	if [ $? -ne 0 ] || [ "$IPFW_VERBOSE" -eq 0 ]; then
48		exit 0
49	fi
50	TMP=`mktemp -t security`
51	ipfw -a list | grep " log " | \
52	grep '^[[:digit:]]\+[[:space:]]\+[[:digit:]]\+' | \
53	awk \
54		'{if ($6 == "logamount") {
55			if ($2 > $7)
56				{print $0}}
57		}' > ${TMP}
58
59	if [ -s "${TMP}" ]; then
60		rc=1
61		echo ""
62		echo 'ipfw log limit reached:'
63		cat ${TMP}
64	fi
65	rm -f ${TMP}
66fi
67
68exit $rc
69