tests/fs/tmpfs/t_link.sh

   1 # $NetBSD: t_link.sh,v 1.2 2008/04/30 13:11:00 martin Exp $
   2 #
   3 # Copyright (c) 2005, 2006, 2007, 2008 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 -s eq:0 -o empty -e empty touch a
  42         atf_check -s eq:0 -o empty -e empty touch z
  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 -s eq:0 -o empty -e empty ln a b
  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 -s eq:0 -o empty -e empty rm a
  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 -s eq:0 -o empty -e empty rm b
  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 -s eq:0 -o empty -e empty touch a
  76         atf_check -s eq:0 -o empty -e empty mkdir c
  77         atf_check -s eq:0 -o empty -e empty ln a c/b
  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 -s eq:0 -o empty -e empty rm a
  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 -s eq:0 -o empty -e empty rm c/b
  91         atf_check -s eq:0 -o empty -e empty rmdir c
  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 -s eq:0 -o empty -e empty mkdir dir
 106         atf_check -s eq:0 -o empty -e empty touch dir/a
 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 -s eq:0 -o empty -e empty rm dir/b
 117         atf_check -s eq:0 -o empty -e empty rmdir dir
 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 }