security.d/chk_dev

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1 #!/bin/bash
2 #
3 # $Id$
4 #
5 #############################################################################
6 # Copyright (C) 2006-2007
7 #
8 # Michiel Broek <mbse@mbse.eu>
9 # Beekmansbos 10
10 # 1971 BV IJmuiden
11 # the Netherlands
12 #
13 # This file is part of SlackSecCheckSripts.
14 #
15 # This package is free software; you can redistribute it and/or modify it
16 # under the terms of the GNU General Public License as published by the
17 # Free Software Foundation; either version 2, or (at your option) any
18 # later version.
19 #
20 # SlackSecCheckSripts is distributed in the hope that it will be useful, but
21 # WITHOUT ANY WARRANTY; without even the implied warranty of
22 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
23 # General Public License for more details.
24 #
25 # You should have received a copy of the GNU General Public License
26 # along with MBSE BBS; see the file COPYING. If not, write to the Free
27 # Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
28 #############################################################################
29
30 PATH=/sbin:/usr/sbin:/bin:/usr/bin
31
32 umask 077
33 TZ=UTC; export TZ
34 LANG=C; export LANG
35
36 SECUREDIR=`mktemp -d /tmp/_securedir.XXXXXX` || exit 1
37
38 trap "/bin/rm -rf $SECUREDIR ; exit 0" EXIT INT QUIT PIPE
39
40 if ! cd "$SECUREDIR"; then
41 echo "Can not cd to $SECUREDIR".
42 exit 1
43 fi
44
45 backup_dir=/var/cache/sscs
46 mkdir -p "$backup_dir"
47
48 CURR=${backup_dir}/dev.current
49 BACK=${backup_dir}/dev.backup
50 TMP1=$SECUREDIR/tmp1
51 TMP2=$SECUREDIR/tmp2
52 TMP3=$SECUREDIR/tmp3
53
54 if [ ! -f $CURR ]; then
55 # No database, install new database
56 find / \( -type b -o -type c \) -print0 2>/dev/null | xargs -0 /bin/ls -ldq --full-time | sort -k10 | egrep -v ptmx > $CURR
57 exit
58 fi
59
60 # Database is present, create temp database
61 #
62 find / \( -type b -o -type c \) -print0 2>/dev/null | xargs -0 /bin/ls -ldq --full-time | sort -k10 | egrep -v ptmx > $TMP1
63 changed=0
64
65 diff -b $TMP1 $CURR > $TMP2
66 if [ -s $TMP2 ]; then
67 egrep '>' $TMP2 > $TMP3
68 if [ -s $TMP3 ]; then
69 printf "\nOld or updated device files:\n"
70 cat $TMP3 | tr '>' ' '
71 fi
72 egrep '<' $TMP2 > $TMP3
73 if [ -s $TMP3 ]; then
74 printf "\nNew or updated device files:\n"
75 cat $TMP3 | tr '<' ' '
76 fi
77 changed=1
78 fi
79
80
81 # If changes were seen, update the database
82 #
83 if [ "$changed" == "1" ]; then
84 cat $CURR > $BACK
85 cat $TMP1 > $CURR
86 fi
87

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