tests/fs/puffs/t_psshfs.sh

   1 # $NetBSD: t_psshfs.sh,v 1.4 2008/04/30 13:11:00 martin Exp $
   2 #
   3 # Copyright (c) 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 # Auxiliary functions.
  30 # -------------------------------------------------------------------------
  31
  32 #
  33 # Skips the calling test case if puffs is not supported in the kernel
  34 # or if the calling user does not have the necessary permissions to mount
  35 # file systems.
  36 #
  37 require_puffs() {
  38         case "$($(atf_get_srcdir)/h_have_puffs)" in
  39                 eacces)
  40                         atf_skip "Cannot open /dev/puffs for read/write access"
  41                         ;;
  42                 enxio)
  43                         atf_skip "puffs support not built into the kernel"
  44                         ;;
  45                 failed)
  46                         atf_skip "Unknown error trying to access /dev/puffs"
  47                         ;;
  48                 yes)
  49                         ;;
  50                 *)
  51                         atf_fail "Unknown value returned by h_have_puffs"
  52                         ;;
  53         esac
  54
  55         if [ $(id -u) -ne 0 -a $(sysctl -n vfs.generic.usermount) -eq 0 ]
  56         then
  57                 atf_skip "Regular users cannot mount file systems" \
  58                     "(vfs.generic.usermount is set to 0)"
  59         fi
  60 }
  61
  62 #
  63 # Starts a SSH server and sets up the client to access it.
  64 # Authentication is allowed and done using an RSA key exclusively, which
  65 # is generated on the fly as part of the test case.
  66 # XXX: Ideally, all the tests in this test program should be able to share
  67 # the generated key, because creating it can be a very slow process on some
  68 # machines.
  69 #
  70 start_ssh() {
  71         echo "Setting up SSH server configuration"
  72         sed -e "s,@SRCDIR@,$(atf_get_srcdir),g" -e "s,@WORKDIR@,$(pwd),g" \
  73             $(atf_get_srcdir)/sshd_config.in >sshd_config || \
  74             atf_fail "Failed to create sshd_config"
  75         atf_check -s eq:0 -o empty -e empty cp /usr/libexec/sftp-server .
  76         atf_check -s eq:0 -o empty -e empty \
  77             cp $(atf_get_srcdir)/ssh_host_key .
  78         atf_check -s eq:0 -o empty -e empty \
  79             cp $(atf_get_srcdir)/ssh_host_key.pub .
  80         atf_check -s eq:0 -o empty -e empty chmod 400 ssh_host_key
  81         atf_check -s eq:0 -o empty -e empty chmod 444 ssh_host_key.pub
  82
  83         /usr/sbin/sshd -e -D -f ./sshd_config >sshd.log 2>&1 &
  84         echo $! >sshd.pid
  85         echo "SSH server started (pid $(cat sshd.pid))"
  86
  87         echo "Setting up SSH client configuration"
  88         atf_check -s eq:0 -o empty -e empty \
  89             ssh-keygen -f ssh_user_key -t rsa -b 1024 -N "" -q
  90         atf_check -s eq:0 -o empty -e empty \
  91             cp ssh_user_key.pub authorized_keys
  92         echo "[localhost]:10000,[127.0.0.1]:10000,[::1]:10000" \
  93             "$(cat $(atf_get_srcdir)/ssh_host_key.pub)" >known_hosts || \
  94             atf_fail "Failed to create known_hosts"
  95         atf_check -s eq:0 -o empty -e empty chmod 600 authorized_keys
  96         sed -e "s,@SRCDIR@,$(atf_get_srcdir),g" -e "s,@WORKDIR@,$(pwd),g" \
  97             $(atf_get_srcdir)/ssh_config.in >ssh_config || \
  98             atf_fail "Failed to create ssh_config"
  99 }
 100
 101 #
 102 # Stops the SSH server spawned by start_ssh and prints diagnosis data.
 103 #
 104 stop_ssh() {
 105         if [ -f sshd.pid ]; then
 106                 echo "Stopping SSH server (pid $(cat sshd.pid))"
 107                 kill $(cat sshd.pid)
 108         fi
 109         if [ -f sshd.log ]; then
 110                 echo "Server output was:"
 111                 sed -e 's,^,    ,' sshd.log
 112         fi
 113 }
 114
 115 #
 116 # Mounts the given source directory on the target directory using psshfs.
 117 # Both directories are supposed to live on the current directory.
 118 #
 119 mount_psshfs() {
 120         atf_check -s eq:0 -o empty -e empty \
 121             mount -t psshfs -o -F=$(pwd)/ssh_config localhost:$(pwd)/${1} ${2}
 122 }
 123
 124 # -------------------------------------------------------------------------
 125 # The test cases.
 126 # -------------------------------------------------------------------------
 127
 128 atf_test_case inode_nos
 129 inode_nos_head() {
 130         atf_set "descr" "Checks that different files get different inode" \
 131             "numbers"
 132 }
 133 inode_nos_body() {
 134         require_puffs
 135
 136         start_ssh
 137
 138         mkdir root
 139         mkdir root/dir
 140         touch root/dir/file1
 141         touch root/dir/file2
 142         touch root/file3
 143         touch root/file4
 144
 145         cat >ne_inodes.sh <<EOF
 146 #! $(atf-config -t atf_shell)
 147 #
 148 # Compares the inodes of the two given files and returns true if they are
 149 # different; false otherwise.
 150 #
 151 test \$(stat -f %i \${1}) -ne \$(stat -f %i \${2})
 152 EOF
 153         chmod +x ne_inodes.sh
 154
 155         mkdir mnt
 156         mount_psshfs root mnt
 157         atf_check -s eq:0 -o empty -e empty \
 158             ./ne_inodes.sh root/dir root/dir/file1
 159         atf_check -s eq:0 -o empty -e empty \
 160             ./ne_inodes.sh root/dir root/dir/file2
 161         atf_check -s eq:0 -o empty -e empty \
 162             ./ne_inodes.sh root/dir/file1 root/dir/file2
 163         atf_check -s eq:0 -o empty -e empty \
 164             ./ne_inodes.sh root/file3 root/file4
 165 }
 166 inode_nos_cleanup() {
 167         umount mnt
 168         stop_ssh
 169 }
 170
 171 atf_test_case pwd
 172 pwd_head() {
 173         atf_set "descr" "Checks that pwd works correctly"
 174 }
 175 pwd_body() {
 176         require_puffs
 177
 178         start_ssh
 179
 180         mkdir root
 181         mkdir root/dir
 182
 183         mkdir mnt
 184         atf_check -s eq:0 -o save:stdout -e empty \
 185             -x 'echo $(cd mnt && /bin/pwd)/dir'
 186         mv stdout expout
 187         mount_psshfs root mnt
 188         atf_check -s eq:0 -o file:expout -e empty \
 189             -x 'cd mnt/dir && ls .. >/dev/null && /bin/pwd'
 190 }
 191 pwd_cleanup() {
 192         umount mnt
 193         stop_ssh
 194 }
 195
 196 # -------------------------------------------------------------------------
 197 # Initialization.
 198 # -------------------------------------------------------------------------
 199
 200 atf_init_test_cases() {
 201         atf_add_test_case inode_nos
 202         atf_add_test_case pwd
 203 }