tools/regression/tmpfs/t_link

   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 # 3. All advertising materials mentioning features or use of this software
  21 #    must display the following acknowledgement:
  22 #        This product includes software developed by the NetBSD
  23 #        Foundation, Inc. and its contributors.
  24 # 4. Neither the name of The NetBSD Foundation nor the names of its
  25 #    contributors may be used to endorse or promote products derived
  26 #    from this software without specific prior written permission.
  27 #
  28 # THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  29 # ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  30 # TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  31 # PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  32 # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  33 # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  34 # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  35 # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  36 # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  37 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  38 # POSSIBILITY OF SUCH DAMAGE.
  39 #
  40 # $FreeBSD$
  41 #
  42
  43 #
  44 # Verifies that the link operation works.
  45 #
  46
  47 test_run() {
  48         test_mount
  49
  50         test_name "Link operation works"
  51         touch a || die
  52         touch z || die
  53         eval $(stat -s a | sed -e 's|st_|sta_|g')
  54         eval $(stat -s z | sed -e 's|st_|stz_|g')
  55         test ${sta_ino} != ${stz_ino} || die
  56         test ${sta_nlink} -eq 1 || die
  57         ln a b || die
  58         test_name "Link count is correct after links are created"
  59         eval $(stat -s a | sed -e 's|st_|sta_|g')
  60         eval $(stat -s b | sed -e 's|st_|stb_|g')
  61         test ${sta_ino} = ${stb_ino} || die
  62         test ${sta_nlink} -eq 2 || die
  63         test ${stb_nlink} -eq 2 || die
  64         test_name "Link count is correct after links are deleted"
  65         rm a || die
  66         eval $(stat -s b | sed -e 's|st_|stb_|g')
  67         test ${stb_nlink} -eq 1 || die
  68         rm b || die
  69
  70         test_name "Link operation works in subdirectories"
  71         touch a || die
  72         mkdir c || die
  73         ln a c/b || die
  74         test_name "Link count is correct after links are created"
  75         eval $(stat -s a | sed -e 's|st_|sta_|g')
  76         eval $(stat -s c/b | sed -e 's|st_|stb_|g')
  77         test ${sta_ino} = ${stb_ino} || die
  78         test ${sta_nlink} -eq 2 || die
  79         test ${stb_nlink} -eq 2 || die
  80         test_name "Link count is correct after links are deleted"
  81         rm a || die
  82         eval $(stat -s c/b | sed -e 's|st_|stb_|g')
  83         test ${stb_nlink} -eq 1 || die
  84         rm c/b || die
  85         rmdir c || die
  86
  87         mkdir dir || die
  88         touch dir/a || die
  89         echo 'ln dir/a dir/b' | kqueue_monitor 2 dir dir/a || die
  90         test_name "Creating a link raises NOTE_LINK on the source file"
  91         kqueue_check dir/a NOTE_LINK || die
  92         test_name "Creating a link raises NOTE_WRITE on the parent directory"
  93         kqueue_check dir NOTE_WRITE || die
  94
  95         echo 'rm dir/a' | kqueue_monitor 2 dir dir/b || die
  96         # XXX According to the (short) kqueue(2) documentation, the following
  97         # should raise a NOTE_LINK but FFS raises a NOTE_DELETE...
  98         test_name "Deleting a link raises NOTE_DELETE on one other link"
  99         kqueue_check dir/b NOTE_DELETE || die
 100         test_name "Deleting a link raises NOTE_WRITE on the parent directory"
 101         kqueue_check dir NOTE_WRITE || die
 102         rm dir/b || die
 103         rmdir dir || die
 104
 105         test_unmount
 106 }
 107
 108 . ${SUBRDIR}/h_funcs.subr