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1#!/bin/bash
2
3#
4# Copyright (c) International Business Machines  Corp., 2005
5# Author: Avantika Mathur (mathurav@us.ibm.com)
6#
7# This library is free software; you can redistribute it and/or
8# modify it under the terms of the GNU Lesser General Public
9# License as published by the Free Software Foundation; either
10# version 2.1 of the License, or (at your option) any later version.
11#
12# This library is distributed in the hope that it will be useful,
13# but WITHOUT ANY WARRANTY; without even the implied warranty of
14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15# Lesser General Public License for more details.
16#
17# You should have received a copy of the GNU Lesser General Public
18# License along with this library; if not, write to the Free Software
19# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
20#
21
22SETS_DEFAULTS="${TCID=test20} ${TST_COUNT=1} ${TST_TOTAL=1}"
23declare -r TCID
24declare -r TST_COUNT
25declare -r TST_TOTAL
26export TCID TST_COUNT TST_TOTAL
27
28tst_resm TINFO "***************TEST20***************"
29tst_resm TINFO "bind: shared subtree with shared child to uncloneable subtree."
30tst_resm TINFO "************************************"
31
32. "${FS_BIND_ROOT}/bin/setup" || (tst_resm TWARN "Setup of bind/test20 failed" && tst_exit)
33export result=0
34
35
36
37trap 'ERR=$? ; ERR_MSG="caught error near: ${BASH_SOURCE[0]}:${FUNCNAME[0]}:${LINENO}:$_ (returned ${ERR})"; break' ERR
38
39while /bin/true ; do
40	# This loop is for error recovery purposes only
41
42
43
44	"${FS_BIND_ROOT}/bin/makedir" share parent1
45	"${FS_BIND_ROOT}/bin/makedir" unclone parent2
46	"${FS_BIND_ROOT}/bin/makedir" share share1
47
48	mount --bind "$disk1" share1
49	mount --bind share1 parent1
50
51	mount --bind parent1 parent2
52	"${FS_BIND_ROOT}/bin/makedir" share parent1/child1
53
54	check parent1 share1 parent2
55	mount --bind "$disk2" parent1/child1
56	check parent1/child1 parent2/child1
57	check parent1/child1 share1/child1
58	mount --bind "$disk3" parent2/a
59
60	check parent1/a parent2/a share1/a
61
62	mount --bind "$disk4" share1/b
63
64	check parent1/b parent2/b share1/b
65
66	break
67done
68trap 'ERR=$? ; tst_resm TWARN "bind/test20: caught error near: ${BASH_SOURCE[0]}:${FUNCNAME[0]}:${LINENO}:$_ (returned ${ERR})"' ERR
69if [ -n "${ERR_MSG}" ]; then
70	tst_resm TWARN "bind/test20: ${ERR_MSG}"
71	ERR_MSG=""
72	result=$ERR
73fi
74trap '' ERR
75{
76	umount share1/b
77	umount parent2/a
78	umount parent1/child1
79	umount parent1/child1
80	umount parent2
81	umount parent1
82	umount share1
83	umount parent2
84	umount parent1
85	umount share1
86
87	rm -rf parent* share*
88	cleanup
89} >& /dev/null
90if [ $result -ne 0 ]
91then
92	tst_resm TFAIL "bind/test20: FAILED: bind: shared subtree with shared child to uncloneable subtree."
93	exit 1
94else
95	tst_resm TPASS "bind/test20: PASSED"
96	exit 0
97fi
98tst_exit
99