freebsd-src/etc/periodic/security/520.pfdenied
Max Laier 66754ab3f1 Teach periodic(8) security output to display information about blocked
packet counts by pf(4).

This adds a ``daily_status_security_pfdenied_enable'' variable to
periodic.conf, which defaults to ``YES'' as the matching IPF(W) versions.

The output will look like this (line wrapped):

  pf denied packets:
  > block drop log on rl0 proto tcp all [ Evaluations: 504986 Packets: 0
    Bytes: 0 States: 0 ]
  > block drop log on rl0 all [ Evaluations: 18559 Packets: 427 Bytes: 140578
    States: 0 ]

Submitted by:	clive (thanks a lot!)
MFC after:	2 weeks
2004-11-24 18:41:53 +00:00

54 lines
1.9 KiB
Bash

#!/bin/sh -
#
# Copyright (c) 2004 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.
#
# $FreeBSD$
#
# 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_pfdenied_enable" in
[Yy][Ee][Ss])
TMP=`mktemp -t security`
if pfctl -sr -v 2>/dev/null | nawk '{if (/^block/) {buf=$0; getline; gsub(" +"," ",$0); print buf$0;} }' > ${TMP}; then
check_diff new_only pf ${TMP} "${host} pf denied packets:"
fi
rc=$?
rm -f ${TMP};;
*) rc=0;;
esac
exit $rc