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t_psshfs.sh revision 1.1 
      1 # $NetBSD: t_psshfs.sh,v 1.1 2010/07/06 14:06:22 pooka 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 cleanup
    129 inode_nos_head() {
    130 	atf_set "descr" "Checks that different files get different inode" \
    131 	    "numbers"
    132 	atf_set "use.fs" "true"
    133 }
    134 inode_nos_body() {
    135 	require_puffs
    136 
    137 	start_ssh
    138 
    139 	mkdir root
    140 	mkdir root/dir
    141 	touch root/dir/file1
    142 	touch root/dir/file2
    143 	touch root/file3
    144 	touch root/file4
    145 
    146 	cat >ne_inodes.sh <<EOF
    147 #! $(atf-config -t atf_shell)
    148 #
    149 # Compares the inodes of the two given files and returns true if they are
    150 # different; false otherwise.
    151 #
    152 test \$(stat -f %i \${1}) -ne \$(stat -f %i \${2})
    153 EOF
    154 	chmod +x ne_inodes.sh
    155 
    156 	mkdir mnt
    157 	mount_psshfs root mnt
    158 	atf_check -s eq:0 -o empty -e empty \
    159 	    ./ne_inodes.sh root/dir root/dir/file1
    160 	atf_check -s eq:0 -o empty -e empty \
    161 	    ./ne_inodes.sh root/dir root/dir/file2
    162 	atf_check -s eq:0 -o empty -e empty \
    163 	    ./ne_inodes.sh root/dir/file1 root/dir/file2
    164 	atf_check -s eq:0 -o empty -e empty \
    165 	    ./ne_inodes.sh root/file3 root/file4
    166 }
    167 inode_nos_cleanup() {
    168 	umount mnt
    169 	stop_ssh
    170 }
    171 
    172 atf_test_case pwd cleanup
    173 pwd_head() {
    174 	atf_set "descr" "Checks that pwd works correctly"
    175 	atf_set "use.fs" "true"
    176 }
    177 pwd_body() {
    178 	require_puffs
    179 
    180 	start_ssh
    181 
    182 	mkdir root
    183 	mkdir root/dir
    184 
    185 	mkdir mnt
    186 	atf_check -s eq:0 -o save:stdout -e empty \
    187 	    -x 'echo $(cd mnt && /bin/pwd)/dir'
    188 	mv stdout expout
    189 	mount_psshfs root mnt
    190 	atf_check -s eq:0 -o file:expout -e empty \
    191 	    -x 'cd mnt/dir && ls .. >/dev/null && /bin/pwd'
    192 }
    193 pwd_cleanup() {
    194 	umount mnt
    195 	stop_ssh
    196 }
    197 
    198 # -------------------------------------------------------------------------
    199 # Initialization.
    200 # -------------------------------------------------------------------------
    201 
    202 atf_init_test_cases() {
    203 	atf_add_test_case inode_nos
    204 	atf_add_test_case pwd
    205 }
    206