xref: /freebsd/tools/test/stress2/misc/nullfs4.sh (revision 2b8331622f0b212cf3bb4fc4914a501e5321d506)
1#!/bin/sh
2
3#
4# Copyright (c) 2009 Peter Holm <pho@FreeBSD.org>
5# All rights reserved.
6#
7# Redistribution and use in source and binary forms, with or without
8# modification, are permitted provided that the following conditions
9# are met:
10# 1. Redistributions of source code must retain the above copyright
11#    notice, this list of conditions and the following disclaimer.
12# 2. Redistributions in binary form must reproduce the above copyright
13#    notice, this list of conditions and the following disclaimer in the
14#    documentation and/or other materials provided with the distribution.
15#
16# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26# SUCH DAMAGE.
27#
28
29# Test scenario by Anatoli Klassen <dev 26th net>
30
31# kern/94269: [nullfs] procfs shows wrong data if executable is running from
32# nullfs
33
34[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
35
36. ../default.cfg
37
38mount | grep -q /proc || mount -t procfs procfs /proc
39mount -t nullfs /bin $mntpoint
40
41r1=`/bin/ls -l /proc/curproc/file`
42r2=`$mntpoint/ls -l /proc/curproc/file | sed "s#$mntpoint#/bin#"`
43if [ "$r1" != "$r2" ]; then
44	echo "/bin/ls -l /proc/curproc/file"
45	echo $r1
46	echo "$mntpoint/ls -l /proc/curproc/file"
47	echo $r2
48fi
49
50umount $mntpoint
51