t_link.sh revision 1.1.8.1 1 # $NetBSD: t_link.sh,v 1.1.8.1 2008/05/18 12:36:01 yamt Exp $
2 #
3 # Copyright (c) 2005, 2006, 2007 The NetBSD Foundation, Inc.
4 # All rights reserved.
5 #
6 # Redistribution and use in source and binary forms, with or without
7 # modification, are permitted provided that the following conditions
8 # are met:
9 # 1. Redistributions of source code must retain the above copyright
10 # notice, this list of conditions and the following disclaimer.
11 # 2. Redistributions in binary form must reproduce the above copyright
12 # notice, this list of conditions and the following disclaimer in the
13 # documentation and/or other materials provided with the distribution.
14 #
15 # THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
16 # ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
17 # TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
18 # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
19 # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
20 # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
21 # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22 # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23 # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
24 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25 # POSSIBILITY OF SUCH DAMAGE.
26 #
27
28 #
29 # Verifies that the link operation works.
30 #
31
32 atf_test_case basic
33 basic_head() {
34 atf_set "descr" "Verifies that the link operation works on files" \
35 "at the top directory"
36 atf_set "require.user" "root"
37 }
38 basic_body() {
39 test_mount
40
41 atf_check 'touch a' 0 null null
42 atf_check 'touch z' 0 null null
43 eval $(stat -s a | sed -e 's|st_|sta_|g')
44 eval $(stat -s z | sed -e 's|st_|stz_|g')
45 test ${sta_ino} != ${stz_ino} || \
46 atf_fail "Node numbers are not different"
47 test ${sta_nlink} -eq 1 || atf_fail "Number of links is incorrect"
48 atf_check 'ln a b' 0 null null
49
50 echo "Checking if link count is correct after links are created"
51 eval $(stat -s a | sed -e 's|st_|sta_|g')
52 eval $(stat -s b | sed -e 's|st_|stb_|g')
53 test ${sta_ino} = ${stb_ino} || atf_fail "Node number changed"
54 test ${sta_nlink} -eq 2 || atf_fail "Link count is incorrect"
55 test ${stb_nlink} -eq 2 || atf_fail "Link count is incorrect"
56
57 echo "Checking if link count is correct after links are deleted"
58 atf_check 'rm a' 0 null null
59 eval $(stat -s b | sed -e 's|st_|stb_|g')
60 test ${stb_nlink} -eq 1 || atf_fail "Link count is incorrect"
61 atf_check 'rm b' 0 null null
62
63 test_unmount
64 }
65
66 atf_test_case subdirs
67 subdirs_head() {
68 atf_set "descr" "Verifies that the link operation works if used" \
69 "in subdirectories"
70 atf_set "require.user" "root"
71 }
72 subdirs_body() {
73 test_mount
74
75 atf_check 'touch a' 0 null null
76 atf_check 'mkdir c' 0 null null
77 atf_check 'ln a c/b' 0 null null
78
79 echo "Checking if link count is correct after links are created"
80 eval $(stat -s a | sed -e 's|st_|sta_|g')
81 eval $(stat -s c/b | sed -e 's|st_|stb_|g')
82 test ${sta_ino} = ${stb_ino} || atf_fail "Node number changed"
83 test ${sta_nlink} -eq 2 || atf_fail "Link count is incorrect"
84 test ${stb_nlink} -eq 2 || atf_fail "Link count is incorrect"
85
86 echo "Checking if link count is correct after links are deleted"
87 atf_check 'rm a' 0 null null
88 eval $(stat -s c/b | sed -e 's|st_|stb_|g')
89 test ${stb_nlink} -eq 1 || atf_fail "Link count is incorrect"
90 atf_check 'rm c/b' 0 null null
91 atf_check 'rmdir c' 0 null null
92
93 test_unmount
94 }
95
96 atf_test_case kqueue
97 kqueue_head() {
98 atf_set "descr" "Verifies that creating a link raises the correct" \
99 "kqueue events"
100 atf_set "require.user" "root"
101 }
102 kqueue_body() {
103 test_mount
104
105 atf_check 'mkdir dir' 0 null null
106 atf_check 'touch dir/a' 0 null null
107 echo 'ln dir/a dir/b' | kqueue_monitor 2 dir dir/a
108 kqueue_check dir/a NOTE_LINK
109 kqueue_check dir NOTE_WRITE
110
111 echo 'rm dir/a' | kqueue_monitor 2 dir dir/b
112 # XXX According to the (short) kqueue(2) documentation, the following
113 # should raise a NOTE_LINK but FFS raises a NOTE_DELETE...
114 kqueue_check dir/b NOTE_LINK
115 kqueue_check dir NOTE_WRITE
116 atf_check 'rm dir/b' 0 null null
117 atf_check 'rmdir dir' 0 null null
118
119 test_unmount
120 }
121
122 atf_init_test_cases() {
123 . $(atf_get_srcdir)/../h_funcs.subr
124 . $(atf_get_srcdir)/h_funcs.subr
125
126 atf_add_test_case basic
127 atf_add_test_case subdirs
128 atf_add_test_case kqueue
129 }
130