tests/fs/psshfs/t_psshfs.sh

   1 # $NetBSD: t_psshfs.sh,v 1.7 2013/03/16 07:54:04 jmmv 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 -f ./sshd_config >sshd.log 2>&1 &
  84         while [ ! -f sshd.pid ]; do
  85                 sleep 0.01
  86         done
  87         echo "SSH server started (pid $(cat sshd.pid))"
  88
  89         echo "Setting up SSH client configuration"
  90         atf_check -s eq:0 -o empty -e empty \
  91             ssh-keygen -f ssh_user_key -t rsa -b 1024 -N "" -q
  92         atf_check -s eq:0 -o empty -e empty \
  93             cp ssh_user_key.pub authorized_keys
  94         echo "[localhost]:10000,[127.0.0.1]:10000,[::1]:10000" \
  95             "$(cat $(atf_get_srcdir)/ssh_host_key.pub)" >known_hosts || \
  96             atf_fail "Failed to create known_hosts"
  97         atf_check -s eq:0 -o empty -e empty chmod 600 authorized_keys
  98         sed -e "s,@SRCDIR@,$(atf_get_srcdir),g" -e "s,@WORKDIR@,$(pwd),g" \
  99             $(atf_get_srcdir)/ssh_config.in >ssh_config || \
 100             atf_fail "Failed to create ssh_config"
 101 }
 102
 103 #
 104 # Stops the SSH server spawned by start_ssh and prints diagnosis data.
 105 #
 106 stop_ssh() {
 107         if [ -f sshd.pid ]; then
 108                 echo "Stopping SSH server (pid $(cat sshd.pid))"
 109                 kill $(cat sshd.pid)
 110         fi
 111         if [ -f sshd.log ]; then
 112                 echo "Server output was:"
 113                 sed -e 's,^,    ,' sshd.log
 114         fi
 115 }
 116
 117 #
 118 # Mounts the given source directory on the target directory using psshfs.
 119 # Both directories are supposed to live on the current directory.
 120 #
 121 mount_psshfs() {
 122         atf_check -s eq:0 -o empty -e empty \
 123             mount -t psshfs -o -F=$(pwd)/ssh_config localhost:$(pwd)/${1} ${2}
 124 }
 125
 126 # -------------------------------------------------------------------------
 127 # The test cases.
 128 # -------------------------------------------------------------------------
 129
 130 atf_test_case inode_nos cleanup
 131 inode_nos_head() {
 132         atf_set "descr" "Checks that different files get different inode" \
 133             "numbers"
 134 }
 135 inode_nos_body() {
 136         require_puffs
 137
 138         start_ssh
 139
 140         mkdir root
 141         mkdir root/dir
 142         touch root/dir/file1
 143         touch root/dir/file2
 144         touch root/file3
 145         touch root/file4
 146
 147         cat >ne_inodes.sh <<EOF
 148 #! /bin/sh
 149 #
 150 # Compares the inodes of the two given files and returns true if they are
 151 # different; false otherwise.
 152 #
 153 set -e
 154 ino1=\$(stat -f %i \${1})
 155 ino2=\$(stat -f %i \${2})
 156 test \${ino1} -ne \${ino2}
 157 EOF
 158         chmod +x ne_inodes.sh
 159
 160         mkdir mnt
 161         mount_psshfs root mnt
 162         atf_check -s eq:0 -o empty -e empty \
 163             ./ne_inodes.sh root/dir root/dir/file1
 164         atf_check -s eq:0 -o empty -e empty \
 165             ./ne_inodes.sh root/dir root/dir/file2
 166         atf_check -s eq:0 -o empty -e empty \
 167             ./ne_inodes.sh root/dir/file1 root/dir/file2
 168         atf_check -s eq:0 -o empty -e empty \
 169             ./ne_inodes.sh root/file3 root/file4
 170 }
 171 inode_nos_cleanup() {
 172         umount mnt
 173         stop_ssh
 174 }
 175
 176 atf_test_case pwd cleanup
 177 pwd_head() {
 178         atf_set "descr" "Checks that pwd works correctly"
 179 }
 180 pwd_body() {
 181         require_puffs
 182
 183         start_ssh
 184
 185         mkdir root
 186         mkdir root/dir
 187
 188         mkdir mnt
 189         atf_check -s eq:0 -o save:stdout -e empty \
 190             -x 'echo $(cd mnt && /bin/pwd)/dir'
 191         mv stdout expout
 192         mount_psshfs root mnt
 193         atf_check -s eq:0 -o file:expout -e empty \
 194             -x 'cd mnt/dir && ls .. >/dev/null && /bin/pwd'
 195 }
 196 pwd_cleanup() {
 197         umount mnt
 198         stop_ssh
 199 }
 200
 201 atf_test_case ls cleanup
 202 ls_head() {
 203         atf_set "descr" "Uses ls, attempts to exercise puffs_cc"
 204 }
 205 ls_body() {
 206         require_puffs
 207
 208         start_ssh
 209
 210         mkdir mnt
 211         mkdir root
 212         mkdir root/dir
 213         touch root/dir/file1
 214         touch root/dir/file2
 215         touch root/file3
 216         touch root/file4
 217
 218         mount_psshfs root mnt
 219
 220         ls -l mnt &
 221
 222         IFS=' '
 223 lsout='dir
 224 file3
 225 file4
 226
 227 mnt/dir:
 228 file1
 229 file2
 230 '
 231         atf_check -s exit:0 -o inline:"$lsout" ls -R mnt
 232 }
 233 ls_cleanup() {
 234         umount mnt
 235         stop_ssh
 236 }
 237
 238 atf_test_case setattr_cache cleanup
 239 setattr_cache_head() {
 240         atf_set "descr" "Checks that setattr caches"
 241         # Don't wait for the eternity that atf usually waits.  Twenty
 242         # seconds should be good enough, except maybe on a VAX...
 243         atf_set "timeout" 20
 244 }
 245 setattr_cache_body() {
 246         require_puffs
 247         start_ssh
 248         atf_check -s exit:0 mkdir root
 249         atf_check -s exit:0 mkdir mnt
 250         mount_psshfs root mnt
 251         atf_check -s exit:0 -x ': > mnt/loser'
 252         atf_check -s exit:0 -o save:stat stat mnt/loser
 253         # Oops -- this doesn't work.  We need to stop the child of the
 254         # sshd that is handling the sftp session.
 255         atf_check -s exit:0 kill -STOP $(cat sshd.pid)
 256         atf_check -s exit:0 -x ': > mnt/loser'
 257         atf_check -s exit:0 -o file:stat stat mnt/loser
 258 }
 259 setattr_cache_cleanup() {
 260         umount mnt
 261         kill -CONT $(cat sshd.pid)
 262         stop_ssh
 263 }
 264
 265 # -------------------------------------------------------------------------
 266 # Initialization.
 267 # -------------------------------------------------------------------------
 268
 269 atf_init_test_cases() {
 270         atf_add_test_case inode_nos
 271         atf_add_test_case pwd
 272         atf_add_test_case ls
 273         #atf_add_test_case setattr_cache
 274 }