etc/periodic/security/520.pfdenied

   1 #!/bin/sh -
   2 #
   3 # Copyright (c) 2004  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 # $FreeBSD: head/etc/periodic/security/520.pfdenied 306696 2016-10-04 23:12:35Z lidl $
  28 #
  29
  30 # If there is a global system configuration file, suck it in.
  31 #
  32 if [ -r /etc/defaults/periodic.conf ]
  33 then
  34     . /etc/defaults/periodic.conf
  35     source_periodic_confs
  36 fi
  37
  38 . /etc/periodic/security/security.functions
  39
  40 security_daily_compat_var security_status_pfdenied_enable
  41
  42 rc=0
  43
  44 if check_yesno_period security_status_pfdenied_enable
  45 then
  46         TMP=`mktemp -t security`
  47         pfctl -sr -v -z 2>/dev/null | \
  48             awk '{
  49                 if (/^block/) {
  50                     buf=$0
  51                     getline
  52                     gsub(" +"," ",$0)
  53                     if ($5 > 0)
  54                         print buf$0
  55                 }
  56             }' > ${TMP}
  57         if [ -s ${TMP} ]; then
  58                 check_diff new_only pf ${TMP} "${host} pf denied packets:"
  59         fi
  60         rc=$?
  61         rm -f ${TMP}
  62 fi
  63
  64 exit $rc