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
|
#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2022 Oracle. All Rights Reserved.
#
# FS QA Test No. 726
#
# Functional test for dropping suid and sgid bits as part of an atomic file
# commit.
#
. ./common/preamble
_begin_fstest auto fiexchange swapext quick
# Override the default cleanup function.
# _cleanup()
# {
# cd /
# rm -r -f $tmp.*
# }
# Import common functions.
. ./common/filter
# real QA test starts here
# Modify as appropriate.
_supported_fs generic
_require_user
_require_xfs_io_command swapext '-v exchrange -a'
_require_xfs_io_command startupdate
_require_scratch
_scratch_mkfs >> $seqres.full
_scratch_mount
_require_congruent_file_oplen $SCRATCH_MNT 1048576
chmod a+rw $SCRATCH_MNT/
setup_testfile() {
rm -f $SCRATCH_MNT/a
_pwrite_byte 0x58 0 1m $SCRATCH_MNT/a >> $seqres.full
sync
}
commit_and_check() {
local user="$1"
md5sum $SCRATCH_MNT/a | _filter_scratch
stat -c '%a %A %n' $SCRATCH_MNT/a | _filter_scratch
local cmd="$XFS_IO_PROG -c 'startupdate' -c 'pwrite -S 0x57 0 1m' -c 'commitupdate' $SCRATCH_MNT/a"
if [ -n "$user" ]; then
su - "$user" -c "$cmd" >> $seqres.full
else
$SHELL -c "$cmd" >> $seqres.full
fi
_scratch_cycle_mount
md5sum $SCRATCH_MNT/a | _filter_scratch
stat -c '%a %A %n' $SCRATCH_MNT/a | _filter_scratch
# Blank line in output
echo
}
# Commit to a non-exec file by an unprivileged user clears suid but leaves
# sgid.
echo "Test 1 - qa_user, non-exec file"
setup_testfile
chmod a+rws $SCRATCH_MNT/a
commit_and_check "$qa_user"
# Commit to a group-exec file by an unprivileged user clears suid and sgid.
echo "Test 2 - qa_user, group-exec file"
setup_testfile
chmod g+x,a+rws $SCRATCH_MNT/a
commit_and_check "$qa_user"
# Commit to a user-exec file by an unprivileged user clears suid but not sgid.
echo "Test 3 - qa_user, user-exec file"
setup_testfile
chmod u+x,a+rws,g-x $SCRATCH_MNT/a
commit_and_check "$qa_user"
# Commit to a all-exec file by an unprivileged user clears suid and sgid.
echo "Test 4 - qa_user, all-exec file"
setup_testfile
chmod a+rwxs $SCRATCH_MNT/a
commit_and_check "$qa_user"
# Commit to a non-exec file by root leaves suid and sgid.
echo "Test 5 - root, non-exec file"
setup_testfile
chmod a+rws $SCRATCH_MNT/a
commit_and_check
# Commit to a group-exec file by root leaves suid and sgid.
echo "Test 6 - root, group-exec file"
setup_testfile
chmod g+x,a+rws $SCRATCH_MNT/a
commit_and_check
# Commit to a user-exec file by root leaves suid and sgid.
echo "Test 7 - root, user-exec file"
setup_testfile
chmod u+x,a+rws,g-x $SCRATCH_MNT/a
commit_and_check
# Commit to a all-exec file by root leaves suid and sgid.
echo "Test 8 - root, all-exec file"
setup_testfile
chmod a+rwxs $SCRATCH_MNT/a
commit_and_check
# success, all done
status=0
exit
|
