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
|
#! /bin/sh
# $NetBSD: mksandbox,v 1.12 2002/12/03 18:49:39 agc Exp $
#
#
# Copyright (c) 2002 Alistair G. Crooks. 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.
# 3. All advertising materials mentioning features or use of this software
# must display the following acknowledgement:
# This product includes software developed by Alistair G. Crooks
# for the NetBSD project.
# 4. The name of the author may not be used to endorse or promote
# products derived from this software without specific prior written
# permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
#
# Usage: mksandbox [--pkgsrc=dir] [--src=srcdir] [--verbose] sandbox-dir
#
# A small shell script to set up a sandbox (usually for a pkgsrc bulk
# build), using null mounts.
pkgsrc=/usr/pkgsrc
src=/usr/src
opsys=`uname -s`
case "$opsys" in
Darwin)
bmakeprog=bmake
chmodprog=/bin/chmod
chownprog=/usr/sbin/chown
cpprog=/bin/cp
gtarprog=/usr/bin/gnutar
mkdirprog="/bin/mkdir -p"
mountprog=/sbin/mount
paxprog=/bin/pax
sedprog=/usr/bin/sed
;;
Linux)
bmakeprog=bmake
chmodprog=/bin/chmod
chownprog=/bin/chown
cpprog=/bin/cp
gtarprog=/bin/tar
mkdirprog="/bin/mkdir -p"
mountprog=/sbin/mount
paxprog=""
sedprog=/bin/sed
;;
NetBSD)
bmakeprog=make
chmodprog=/bin/chmod
chownprog=/usr/sbin/chown
cpprog=/bin/cp
gtarprog=/usr/bin/tar
mkdirprog="/bin/mkdir -p"
mountprog=/sbin/mount
paxprog=/bin/pax
sedprog=/usr/bin/sed
;;
SunOS)
bmakeprog=bmake
chmodprog=/usr/bin/chmod
chownprog=/usr/bin/chown
cpprog=/usr/bin/cp
gtarprog=""
mkdirprog="/usr/bin/mkdir -p"
mountprog=/sbin/mount
paxprog=/bin/pax
sedprog=/usr/xpg4/bin/sed
;;
*)
echo "Unknown Operating System ($opsys) - good luck"
bmakeprog=bmake
chmodprog=chmod
chownprog=chown
cpprog=cp
gtarprog="tar"
mkdirprog="mkdir -p"
mountprog=mount
paxprog=pax
sedprog=sed
;;
esac
while [ $# -gt 0 ]; do
case "$1" in
--pkgsrc=*) pkgsrc=`echo $1 | $sedprog -e 's|^--pkgsrc=||'` ;;
--src=*) src=`echo $1 | $sedprog -e 's|^--src=||'` ;;
--verbose) set -x ;;
*) break ;;
esac
shift
done
if [ $# -ne 1 ]; then
echo "Usage: mksandbox [--pkgsrc=dir] [--src=srcdir] [--verbose] sandbox-dir"
exit 1
fi
if [ `id -u` -ne 0 ]; then
echo "You must be root to run this script"
exit 1
fi
sandbox=$1
sandbox_script="$sandbox/sandbox"
packages=`(cd $pkgsrc/pkgtools/pkglint; $bmakeprog show-var VARNAME=PACKAGES)`
distfiles=`(cd $pkgsrc/pkgtools/pkglint; $bmakeprog show-var VARNAME=DISTDIR)`
localbase=`(cd $pkgsrc/pkgtools/pkglint; $bmakeprog show-var VARNAME=LOCALBASE)`
pkg_dbdir=`(cd $pkgsrc/pkgtools/pkglint; $bmakeprog show-var VARNAME=PKG_DBDIR)`
localpatches=`(cd $pkgsrc/pkgtools/pkglint; $bmakeprog show-var VARNAME=LOCALPATCHES)`
$mkdirprog $sandbox
cat > $sandbox_script <<EOS
#! /bin/sh -
sandbox=$sandbox
r3() {
local _R=
while [ \$# -ge 3 ]
do
_R="\$1 \$2 \$3 \$_R"
shift; shift; shift
done
echo "\$_R"
}
fses="\\
EOS
echo "Copying the kernel"
$cpprog /netbsd $sandbox
echo "Checking package hierarchy in $localbase and package database in $pkg_dbdir exist"
$mkdirprog $sandbox/$localbase $sandbox/$pkg_dbdir
echo "Make and populate $sandbox/dev"
$mkdirprog $sandbox/dev
$cpprog /dev/MAKEDEV* $sandbox/dev
(cd $sandbox/dev; ./MAKEDEV all)
echo "Make and populate $sandbox/etc"
$mkdirprog $sandbox/etc
case "$paxprog" in
"") (cd /etc; $gtarprog -cf - . | (cd $sandbox/etc; $gtarprog xf - )) ;;
*) (cd /etc; $paxprog -rwpe . $sandbox/etc) ;;
esac
rm -f $sandbox/etc/localtime
$cpprog /usr/share/zoneinfo/GMT $sandbox/etc/localtime
echo "Make empty dirs upon which to mount the null mounts"
for d in /bin \
/sbin \
/lib \
/libexec \
/usr/X11R6 \
/usr/bin \
/usr/games \
/usr/include \
/usr/lib \
/usr/libdata \
/usr/libexec \
/usr/lkm \
/usr/share \
/usr/sbin \
/var/mail; do \
test -d $d || continue; \
$mkdirprog $sandbox$d; \
$mountprog -r -t null $d $sandbox$d; \
echo "$d $d ro \\" >> $sandbox_script
done
echo "Making /tmp in $sandbox"
$mkdirprog $sandbox/tmp $sandbox/var/tmp
$chmodprog 1777 $sandbox/tmp $sandbox/var/tmp
echo "Making /var/games in $sandbox"
$mkdirprog $sandbox/var/games
$chownprog games:games $sandbox/var/games
$chmodprog 2775 $sandbox/var/games
echo "Mount $src from $sandbox"
$mkdirprog $sandbox/usr/src
$mountprog -r -t null $src $sandbox/usr/src
echo "$src /usr/src ro \\" >> $sandbox_script
echo "Mount $pkgsrc from $sandbox"
$mkdirprog $sandbox/usr/pkgsrc
$mountprog -t null $pkgsrc $sandbox/usr/pkgsrc
echo "$pkgsrc /usr/pkgsrc rw \\" >> $sandbox_script
echo "Mounting $packages and $distfiles from $sandbox"
$mkdirprog $sandbox/$packages $sandbox/$distfiles
$mkdirprog $packages $distfiles
$mountprog -t null $packages $sandbox/$packages
$mountprog -t null $distfiles $sandbox/$distfiles
echo "$packages $packages rw \\" >> $sandbox_script
echo "$distfiles $distfiles rw \\" >> $sandbox_script
test -n "$localpatches" && echo "$localpatches $localpatches rw \\" >> $sandbox_script
cat >> $sandbox_script <<EOS
"
case x\$1 in
xmount)
set dummy \$fses
shift
while [ \$# -ge 3 ]; do
fs=\$1; shift
mntpoint=\$1; shift
rwro=\$1; shift
case \$rwro in
ro) mount -r -t null \$fs \$sandbox/\$mntpoint || exit 1 ;;
rw) mount -t null \$fs \$sandbox/\$mntpoint || exit 1 ;;
esac
done
;;
xumount)
set dummy \`r3 \$fses\`
shift
while [ \$# -ge 3 ]; do
fs=\$1; shift
mntpoint=\$1; shift
dummy=\$1; shift
umount \$sandbox/\$mntpoint
done
;;
*)
if [ \$# -eq 0 ]; then
set dummy /bin/sh
shift
fi
chroot \$sandbox "\$@"
;;
esac
EOS
chmod +x $sandbox_script
echo "Sandbox creation is now complete"
exit 0
|
