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1#!/bin/sh
2# SPDX-License-Identifier: GPL-2.0
3# description: Test file and directory owership changes for eventfs
4
5original_group=`stat -c "%g" .`
6original_owner=`stat -c "%u" .`
7
8mount_point=`stat -c '%m' .`
9mount_options=`mount | grep "$mount_point" | sed -e 's/.*(\(.*\)).*/\1/'`
10
11# find another owner and group that is not the original
12other_group=`tac /etc/group | grep -v ":$original_group:" | head -1 | cut -d: -f3`
13other_owner=`tac /etc/passwd | grep -v ":$original_owner:" | head -1 | cut -d: -f3`
14
15# Remove any group ownership already
16new_options=`echo "$mount_options" | sed -e "s/gid=[0-9]*/gid=$other_group/"`
17
18if [ "$new_options" = "$mount_options" ]; then
19 new_options="$mount_options,gid=$other_group"
20 mount_options="$mount_options,gid=$original_group"
21fi
22
23canary="events/timer events/timer/timer_cancel events/timer/timer_cancel/format"
24
25test() {
26 file=$1
27 test_group=$2
28
29 owner=`stat -c "%u" $file`
30 group=`stat -c "%g" $file`
31
32 echo "testing $file $owner=$original_owner and $group=$test_group"
33 if [ $owner -ne $original_owner ]; then
34 exit_fail
35 fi
36 if [ $group -ne $test_group ]; then
37 exit_fail
38 fi
39
40 # Note, the remount does not update ownership so test going to and from owner
41 echo "test owner $file to $other_owner"
42 chown $other_owner $file
43 owner=`stat -c "%u" $file`
44 if [ $owner -ne $other_owner ]; then
45 exit_fail
46 fi
47
48 chown $original_owner $file
49 owner=`stat -c "%u" $file`
50 if [ $owner -ne $original_owner ]; then
51 exit_fail
52 fi
53
54}
55
56run_tests() {
57 for d in "." "events" "events/sched" "events/sched/sched_switch" "events/sched/sched_switch/enable" $canary; do
58 test "$d" $other_group
59 done
60
61 chgrp $original_group events
62 test "events" $original_group
63 for d in "." "events/sched" "events/sched/sched_switch" "events/sched/sched_switch/enable" $canary; do
64 test "$d" $other_group
65 done
66
67 chgrp $original_group events/sched
68 test "events/sched" $original_group
69 for d in "." "events/sched/sched_switch" "events/sched/sched_switch/enable" $canary; do
70 test "$d" $other_group
71 done
72
73 chgrp $original_group events/sched/sched_switch
74 test "events/sched/sched_switch" $original_group
75 for d in "." "events/sched/sched_switch/enable" $canary; do
76 test "$d" $other_group
77 done
78
79 chgrp $original_group events/sched/sched_switch/enable
80 test "events/sched/sched_switch/enable" $original_group
81 for d in "." $canary; do
82 test "$d" $other_group
83 done
84}
85
86mount -o remount,"$new_options" .
87
88run_tests
89
90mount -o remount,"$mount_options" .
91
92for d in "." "events" "events/sched" "events/sched/sched_switch" "events/sched/sched_switch/enable" $canary; do
93 test "$d" $original_group
94done
95
96# check instances as well
97
98chgrp $other_group instances
99
100instance="$(mktemp -u test-XXXXXX)"
101
102mkdir instances/$instance
103
104cd instances/$instance
105
106run_tests
107
108cd ../..
109
110rmdir instances/$instance
111
112chgrp $original_group instances
113
114exit 0