1#!/bin/sh
2#
3# $NetBSD: t_link,v 1.5 2006/11/09 16:20:06 jmmv Exp $
4#
5# Copyright (c) 2005, 2006 The NetBSD Foundation, Inc.
6# All rights reserved.
7#
8# This code is derived from software contributed to The NetBSD Foundation
9# by Julio M. Merino Vidal, developed as part of Google's Summer of Code
10# 2005 program.
11#
12# Redistribution and use in source and binary forms, with or without
13# modification, are permitted provided that the following conditions
14# are met:
15# 1. Redistributions of source code must retain the above copyright
16#    notice, this list of conditions and the following disclaimer.
17# 2. Redistributions in binary form must reproduce the above copyright
18#    notice, this list of conditions and the following disclaimer in the
19#    documentation and/or other materials provided with the distribution.
20#
21# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
22# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
23# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
25# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31# POSSIBILITY OF SUCH DAMAGE.
32#
33# $FreeBSD$
34#
35
36#
37# Verifies that the link operation works.
38#
39
40test_run() {
41	test_mount
42
43	test_name "Link operation works"
44	touch a || die
45	touch z || die
46	eval $(stat -s a | sed -e 's|st_|sta_|g')
47	eval $(stat -s z | sed -e 's|st_|stz_|g')
48	test ${sta_ino} != ${stz_ino} || die
49	test ${sta_nlink} -eq 1 || die
50	ln a b || die
51	test_name "Link count is correct after links are created"
52	eval $(stat -s a | sed -e 's|st_|sta_|g')
53	eval $(stat -s b | sed -e 's|st_|stb_|g')
54	test ${sta_ino} = ${stb_ino} || die
55	test ${sta_nlink} -eq 2 || die
56	test ${stb_nlink} -eq 2 || die
57	test_name "Link count is correct after links are deleted"
58	rm a || die
59	eval $(stat -s b | sed -e 's|st_|stb_|g')
60	test ${stb_nlink} -eq 1 || die
61	rm b || die
62
63	test_name "Link operation works in subdirectories"
64	touch a || die
65	mkdir c || die
66	ln a c/b || die
67	test_name "Link count is correct after links are created"
68	eval $(stat -s a | sed -e 's|st_|sta_|g')
69	eval $(stat -s c/b | sed -e 's|st_|stb_|g')
70	test ${sta_ino} = ${stb_ino} || die
71	test ${sta_nlink} -eq 2 || die
72	test ${stb_nlink} -eq 2 || die
73	test_name "Link count is correct after links are deleted"
74	rm a || die
75	eval $(stat -s c/b | sed -e 's|st_|stb_|g')
76	test ${stb_nlink} -eq 1 || die
77	rm c/b || die
78	rmdir c || die
79
80	mkdir dir || die
81	touch dir/a || die
82	echo 'ln dir/a dir/b' | kqueue_monitor 2 dir dir/a || die
83	test_name "Creating a link raises NOTE_LINK on the source file"
84	kqueue_check dir/a NOTE_LINK || die
85	test_name "Creating a link raises NOTE_WRITE on the parent directory"
86	kqueue_check dir NOTE_WRITE || die
87
88	echo 'rm dir/a' | kqueue_monitor 2 dir dir/b || die
89	# XXX According to the (short) kqueue(2) documentation, the following
90	# should raise a NOTE_LINK but FFS raises a NOTE_DELETE...
91	test_name "Deleting a link raises NOTE_DELETE on one other link"
92	kqueue_check dir/b NOTE_DELETE || die
93	test_name "Deleting a link raises NOTE_WRITE on the parent directory"
94	kqueue_check dir NOTE_WRITE || die
95	rm dir/b || die
96	rmdir dir || die
97
98	test_unmount
99}
100
101. ${SUBRDIR}/h_funcs.subr
102