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|
#! /bin/sh
# $NetBSD: mksandbox,v 1.13 2002/12/31 13:41:16 cjep 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 "$opsys" in
Darwin)
bmakeprog=bmake
chmodprog=/bin/chmod
chownprog=/usr/sbin/chown
cpprog=/bin/cp
gtarprog=/usr/bin/gnutar
idprog=/usr/bin/id
mkdirprog="/bin/mkdir -p"
mountprog=/sbin/mount
paxprog=/bin/pax
sedprog=/usr/bin/sed
;;
Linux)
bmakeprog=bmake
chmodprog=/bin/chmod
chownprog=/bin/chown
cpprog=/bin/cp
gtarprog=/bin/tar
idprog=/usr/bin/id
mkdirprog="/bin/mkdir -p"
mountprog=/sbin/mount
paxprog=""
sedprog=/bin/sed
;;
NetBSD)
bmakeprog=make
chmodprog=/bin/chmod
chownprog=/usr/sbin/chown
cpprog=/bin/cp
gtarprog=/usr/bin/tar
idprog=/usr/bin/id
mkdirprog="/bin/mkdir -p"
mountprog=/sbin/mount
paxprog=/bin/pax
sedprog=/usr/bin/sed
;;
SunOS)
bmakeprog=bmake
chmodprog=/usr/bin/chmod
chownprog=/usr/bin/chown
cpprog=/usr/bin/cp
gtarprog=""
idprog=/usr/xpg4/bin/id
mkdirprog="/usr/bin/mkdir -p"
mountprog=/sbin/mount
paxprog=/bin/pax
sedprog=/usr/xpg4/bin/sed
;;
*)
echo "Unknown Operating System ($opsys) - good luck"
bmakeprog=bmake
chmodprog=chmod
chownprog=chown
cpprog=cp
gtarprog="tar"
idprog="id"
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 [ $# -ne 1 ]; then
echo "Usage: mksandbox [--pkgsrc=dir] [--src=srcdir] [--verbose] sandbox-dir"
exit 1
fi
if [ `$idprog -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
|
