aboutsummaryrefslogtreecommitdiffstats
path: root/init-sh/lib.sh
blob: 271a69a5157953753ce7f4cc011b005d45355159 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
#
# Security level implementation...
# Writen by Vandoorselaere Yoann <yoann@mandrakesoft.com>
#

# Need root access
if [[ ${UID} != 0 ]]; then
    echo "You need to be root in order to change secure level."
    exit 1
fi

export COMMENT="# Mandrake-Security : if you remove this comment, remove the next line too."

WaitAnswer() {
    answer="nothing"

    while [[ ${answer} != yes && ${answer} != no ]]; do
	echo -n "yes/no : "
	read answer
    done
}

AddRules() {
	string=$1
	file=$2
	quiet=$3

	if [[ -z ${string} ]]; then
		return;
	fi

	if [[ -z ${quiet} ]]; then
		echo "Modifying config in ${file}..."
	fi	
	
	if ! grep -Eqx "^${string}" ${file}; then
		echo -e "${COMMENT}" >> ${file};
		echo -e "${string}" >> ${file};
	fi

	if [[ -z ${3} ]]; then
		echo -e "done.\n"
	fi
}

AddBegRules() {
    echo "Modifying config in ${2}..."

	if [[ ! -f ${file} ]]; then
		return;
	fi
    
    export VAL=$1
    perl -pi -e '/^#/ or /^$/ or $m++ or print "$ENV{COMMENT}\n$ENV{VAL}\n"' $2

    echo -e "done.\n"
}


OLD_CleanRules() {
    file=$1
    ctrl=0

    if [[ ! -f ${file} ]]; then
	echo "${file} do not exist... can not clean."
	return;
    fi

    echo -en "\t- Cleaning msec appended line in ${file} : "

    tmpfile=`mktemp /tmp/secure.XXXXXX`
    cp ${file} ${tmpfile}

    while read line; do
	if [[ ${ctrl} == 1 ]]; then
	    ctrl=0
	    continue;
	fi

        if echo "${line}" | grep -qx "${COMMENT}"; then
	    ctrl=1
	fi
		
	if [[ ${ctrl} == 0 ]]; then
	    echo "${line}"
	fi
    done < ${tmpfile} > ${file}

    rm -f ${tmpfile}

    echo "done."
}

CleanRules() {
    echo -en "\t- Cleaning msec appended line in $1 : "

    perl -ni -e '$_ eq "$ENV{COMMENT}\n" ... // or print' $1        

    echo "done."
}

CommentUserRules() {
    file=$1

    if [[ ! -f ${file} ]]; then
	return;
    fi

    echo -en "\t- Cleaning user appended line in ${file} : "

    tmpfile=`mktemp /tmp/secure.XXXXXX`
    cp -f ${file} ${tmpfile}
      
    while read line; do
	if ! echo "${line}" | grep -qE "^#"; then
	    echo "# ${line}"
    else
		echo "${line}"
	fi
    done < ${tmpfile} > ${file}
  
    rm -f ${tmpfile}
    
    echo "done."
}

Syslog() {
    if [[ ${SYSLOG_WARN} == yes ]]; then
        /sbin/initlog --string=${1}
    fi
}

Ttylog() {
    if [[ ${TTY_WARN} == yes ]]; then
	w | grep -v "load\|TTY" | awk '{print $2}' | while read line; do
            echo -e ${1} > /dev/$i
        done
    fi
}


LoaderUpdate() {
   
    # Ask only if we're not inside DrakX.
    if [[ -z ${DRAKX_PASSWORD} ]]; then
    	echo "Do you want a password authentication at boot time ?"
    	echo "Be very carefull,"
    	echo "this will prevent your server to reboot without an operator to enter password".
	WaitAnswer;
    	if [[ ${answer} == yes ]]; then
        	echo -n "Please enter the password which will be used at boot time : "
        	read password
    	else
        	password=""
    	fi

	if [[ ! -z ${password} ]]; then
	    if [[ -f /etc/lilo.conf ]]; then
		AddBegRules "password=$password" /etc/lilo.conf
		chmod 600 /etc/lilo.conf
	    fi
	    if [[ -f /boot/grub/menu.lst ]]; then
		AddBegRules "password $password" /boot/grub/menu.lst
		chmod 600 /boot/grub/menu.lst
	    fi
	    
	    loader=`/usr/sbin/detectloader`
	    case "${loader}" in
		"LILO")
		    /sbin/lilo
		    ;;
		"GRUB")
		    ;;
	    esac
	fi
    fi
}

# Do something only if DRAKX_PASSWORD set ( we're in DrakX )
LoaderDrakX() {
    if [[ -n "${DRAKX_PASSWORD}" ]]; then
	if [[ -f /etc/lilo.conf ]]; then
	    AddBegRules "password=$DRAKX_PASSWORD" /etc/lilo.conf
	    chmod 600 /etc/lilo.conf
	fi
	if [[ -f /boot/grub/menu.lst ]]; then
	    AddBegRules "password $DRAKX_PASSWORD" /boot/grub/menu.lst
	    chmod 600 /boot/grub/menu.lst
	fi
	  
	loader=`/usr/sbin/detectloader`
	case "${loader}" in
	    "LILO")
		    /sbin/lilo
		    ;;
	    "GRUB")
		    ;;
	esac
    fi
}


CleanLoaderRules() {
	if [[ -f /etc/lilo.conf ]]; then
	    CleanRules /etc/lilo.conf
	    chmod 644 /etc/lilo.conf
	fi
	if [[ -f /boot/grub/menu.lst ]]; then
	    CleanRules /boot/grub/menu.lst
	    chmod 644 /boot/grub/menu.lst
	fi

	if [[ -z ${DRAKX_PASSWORD} ]]; then
	    loader=`/usr/sbin/detectloader`
	    case "${loader}" in
		"LILO")
			/sbin/lilo
			;;
		"GRUB")
			;;
	    esac
	fi
}

# If we are currently installing our
# system with DrakX, we don't ask anything to the user...
# Instead, DrakX do it and give us a file with some variable.
if [[ -f /etc/security/msec/security.conf ]]; then
    . /etc/security/msec/security.conf
fi

clear
echo "Preparing to run security script : "
CleanRules /etc/syslog.conf
CleanRules /etc/hosts.deny
CommentUserRules /etc/hosts.deny
CleanRules /etc/hosts.allow
CommentUserRules /etc/hosts.allow
CleanRules /etc/securetty
CommentUserRules /etc/securetty
CleanRules /etc/security/msec/security.conf
CommentUserRules /etc/security/msec/security.conf
CleanRules /etc/profile

CleanLoaderRules
LoaderDrakX

CleanRules /etc/logrotate.conf
CleanRules /etc/rc.d/rc.local
CleanRules /etc/rc.d/rc.firewall
CleanRules /etc/crontab
CleanRules /etc/X11/xdm/Xsession
CleanRules /etc/X11/xinit/xinitrc

echo -e "\nStarting to reconfigure the system : "
# For all secure level
echo "Setting spoofing protection : "
AddRules "echo 1 > /proc/sys/net/ipv4/conf/all/rp_filter" /etc/rc.d/rc.firewall

# default group which must exist on the system
# groupadd already check for their existance...
groupadd nogroup >& /dev/null
groupadd audio >& /dev/null
groupadd xgrp >& /dev/null
groupadd ntools >& /dev/null
groupadd ctools >& /dev/null

#Fix the big security hole introduced in cooker
userdel mandrake >& /dev/null
groupdel mandrake >& /dev/null

usermod -G xgrp xfs

/usr/share/msec/grpuser.sh --clean
echo