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1#!/bin/sh
2#
3#   Copyright (c) International Business Machines  Corp., 2008
4#
5#   This program is free software;  you can redistribute it and/or modify
6#   it under the terms of the GNU General Public License as published by
7#   the Free Software Foundation; either version 2 of the License, or
8#   (at your option) any later version.
9#
10#   This program is distributed in the hope that it will be useful,
11#   but WITHOUT ANY WARRANTY;  without even the implied warranty of
12#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
13#   the GNU General Public License for more details.
14#
15#   You should have received a copy of the GNU General Public License
16#   along with this program;  if not, write to the Free Software
17#   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18#
19#*******************************************************************************
20# Readme_ROBind has more details on the tests running for ROBIND.
21# TEST:
22#   NAME:       test_robind.sh
23#   FUNCTIONALITY:  File system tests for normal mount, bind mount and RO mount
24#
25#   DESCRIPTION:    Performs filesystems tests for RO mount.
26#     For filesystem, like ext2, ext3, reiserfs, jfs & xfs,
27#     This test needs a big block device(>=500MB is ok), and you can specify
28#     it by -z option when running runltp.
29#        a)  mounts on dir1,
30#        b)  mount --bind dir2
31#        c)  mount -o remount,ro
32#       It verifies the tests on a) and b) works correctly.
33#       For the c) option it checks that the tests are not able to write
34#       into dir.
35#===============================================================================
36#
37# CHANGE HISTORY:
38# DATE           AUTHOR                  REASON
39# 09/06/2008     Veerendra Chandrappa    For Container, testing of RO-Bind mount
40#                Dave Hansen
41# This script is based on the Dave Hansen script for testing the robind.
42#*******************************************************************************
43
44export TCID="test_robind"
45export TST_TOTAL=3
46
47DIRS="dir1 dir2-bound dir3-ro"
48dir1_mount_flag=0
49dir2_bound_mount_flag=0
50dir3_ro_mount_flag=0
51
52. test.sh
53
54usage()
55{
56	cat << EOF
57	usage: $0 -c command [ext3,ext2,jfs,xfs,reiserfs,ramfs]
58
59	This script verifies ReadOnly-filesystem, by mounting block device and
60	executing the filesystem tests.
61
62	OPTIONS
63		-h    display this message and exit
64		-c    command to be executed
65
66EOF
67	exit 1
68}
69
70umount_mntpoint()
71{
72	if [ $dir3_ro_mount_flag -eq 1 ];then
73		umount dir3-ro
74		if [ $? -ne 0 ];then
75			tst_resm TWARN "umount dir3-ro failed"
76		else
77			dir3_ro_mount_flag=0
78		fi
79	fi
80
81	if [ $dir2_bound_mount_flag -eq 1 ];then
82		umount dir2-bound
83		if [ $? -ne 0 ];then
84			tst_resm TWARN "umount dir2-bound failed"
85		else
86			dir2_bound_mount_flag=0
87		fi
88	fi
89
90	if [ $dir1_mount_flag -eq 1 ];then
91		umount dir1
92		if [ $? -ne 0 ];then
93			tst_resm TWARN "umount dir1"
94		else
95			dir1_mount_flag=0
96		fi
97	fi
98}
99
100cleanup()
101{
102	umount_mntpoint
103	tst_rmdir
104}
105
106# parameters: file_systems (if any )
107setup()
108{
109	tst_require_root
110
111	if [ -z "$LTP_BIG_DEV" ];then
112		tst_brkm TCONF "tests need a big block device(>=500MB)"
113	else
114		device=$LTP_BIG_DEV
115	fi
116
117	tst_tmpdir
118	TST_CLEANUP=cleanup
119
120	for dir in $DIRS
121	do
122		rm -rf $dir
123		mkdir -p $dir
124	done
125
126	# populating the default FS as $LTP_BIG_DEV_FS_TYPE
127	# (or ext3 if it's not set), if FS is not given
128	if [ -z "$*" ]; then
129		FSTYPES=${LTP_BIG_DEV_FS_TYPE:-ext3}
130	else
131		FSTYPES="$*"
132	fi
133}
134
135# the core function where it runs the tests
136# $1 - directory where to run tests
137# $2 - file system type
138# $3 - read-only flag [true|false]
139testdir()
140{
141	local dir=$1
142	local fs_type=$2
143	local RO=$3
144	local tst_result=0
145	local curdir=$(pwd)
146
147	cd $dir
148	tst_resm TINFO "command: $command"
149
150	# we need to export TMPDIR, in case test calls tst_rmdir()
151	export TMPDIR=$curdir/$dir
152
153	eval $command > $curdir/test.log 2>&1
154	tst_result=$?
155
156	# if tst_result isn't 0 and read-only flag is false, the test failed
157	# or if tst_result is 0 and read-only flag is true, the test failed.
158	if [ "$RO" = "false" -a $tst_result -ne 0 -o "$RO" = "true" -a \
159	     $tst_result -eq 0 ];then
160		tst_resm TINFO "error info:"
161		cat $curdir/test.log
162		tst_resm TFAIL "RO-FileSystem Tests FAILED for \
163				$dir $fs_type read-only flag: $RO"
164	else
165		tst_resm TPASS "RO-FileSystem Tests PASSED for \
166				$dir $fs_type read-only flag: $RO"
167	fi
168
169	# remove all the temp files created.
170	cd ..
171	rm -f $curdir/test.log
172	rm -rf $curdir/$dir/*
173}
174
175#=============================================================================
176# MAIN
177#     See the description, purpose, and design of this test under TEST
178#     in this test's prolog.
179#=============================================================================
180
181while getopts c:h: OPTION; do
182	case $OPTION in
183	c)
184		command=$OPTARG;;
185	h)
186		usage;;
187	?)
188		usage;;
189	esac
190done
191shift $((OPTIND-1))
192
193setup $*
194
195# Executes the tests for differnt FS's
196for fstype in $FSTYPES; do
197	if [ "$fstype" = "reiserfs" ]; then
198		opts="-f --journal-size 513 -q"
199	elif echo "$fstype" | grep -q "ext"; then
200		opts="-F"
201	elif [ "$fstype" = "xfs" ]; then
202		opts="-f"
203	elif [ "$fstype" = "btrfs" ]; then
204		opts="-f"
205	fi
206
207	if [ "$fstype" != "ramfs" ]; then
208		tst_mkfs $fstype $device $opts
209	fi
210
211	mount -t $fstype $device  dir1
212	if [ $? -ne 0 ];then
213		tst_brkm TBROK "mount $device to dir1 failed"
214	else
215		dir1_mount_flag=1
216	fi
217
218	mount --bind dir1 dir2-bound
219	if [ $? -ne 0 ];then
220		tst_brkm TBROK "mount --bind dir1 dir2-bound failed"
221	else
222		dir2_bound_mount_flag=1
223	fi
224
225	mount --bind dir1 dir3-ro
226	if [ $? -ne 0 ];then
227		tst_brkm TBROK "mount --bind dir1 dir3-ro failed"
228	else
229		dir3_ro_mount_flag=1
230	fi
231
232	mount -o remount,ro,bind dir1 dir3-ro
233	if [ $? -ne 0 ];then
234		tst_brkm TBROK "mount -o remount,ro,bind dir1 dir3-ro failed"
235	fi
236
237	testdir dir1 $fstype false
238	testdir dir2-bound $fstype false
239	testdir dir3-ro $fstype true
240	umount_mntpoint
241done
242
243tst_exit
244