ZTS: devices_001_pos and devices_002_neg
Update the devices_001_pos and devices_002_neg test cases such that the special block device file created is backed by a ZFS volume. Specifying a specific device allows the major and minor numbers to be easily determined. Furthermore, this avoids the potentially dangerous behavior of opening the first block device we happen to find under /dev/. Reviewed-by: Ryan Moeller <ryan@ixsystems.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #9773
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Brian Behlendorf
GitHub
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d5c97f3de7
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590ff61a55
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@ -42,7 +42,7 @@
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# 1. Create pool and file system.
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# 2. Set devices=on on this file system.
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# 3. Separately create block device file and character file.
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# 4. Separately read from those two device files.
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# 4. Separately read and write from those two device files.
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# 5. Check the return value, and make sure it succeeds.
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#
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@ -55,12 +55,18 @@ log_onexit cleanup
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log_must zfs set devices=on $TESTPOOL/$TESTFS
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#
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# Separately create block device file and character device file, then try to
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# open them and make sure it succeed.
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# Create block device file backed by a ZFS volume.
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# Verify it can be opened, written, and read.
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#
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create_dev_file b $TESTDIR/$TESTFILE1
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log_must dd if=$TESTDIR/$TESTFILE1 of=$TESTDIR/$TESTFILE1.out count=1
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create_dev_file b $TESTDIR/$TESTFILE1 $ZVOL_DEVDIR/$TESTPOOL/$TESTVOL
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log_must dd if=/dev/urandom of=$TESTDIR/$TESTFILE1.out1 count=1 bs=128k
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log_must dd if=$TESTDIR/$TESTFILE1.out1 of=$TESTDIR/$TESTFILE1 count=1 bs=128k
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log_must dd if=$TESTDIR/$TESTFILE1 of=$TESTDIR/$TESTFILE1.out2 count=1 bs=128k
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log_must cmp $TESTDIR/$TESTFILE1.out1 $TESTDIR/$TESTFILE1.out2
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# Create character device file backed by /dev/null
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# Verify it can be opened and written.
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create_dev_file c $TESTDIR/$TESTFILE2
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log_must dd if=$TESTDIR/$TESTFILE2 of=$TESTDIR/$TESTFILE2.out count=1
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log_must dd if=/dev/urandom of=$TESTDIR/$TESTFILE2 count=1 bs=128k
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log_pass "Setting devices=on on file system and testing it pass."
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@ -42,7 +42,7 @@
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# 1. Create pool and file system.
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# 2. Set devices=off on this file system.
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# 3. Separately create block device file and character file.
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# 4. Separately read from those two device files.
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# 4. Separately read and write from those two device files.
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# 5. Check the return value, and make sure it failed.
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#
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@ -55,12 +55,16 @@ log_onexit cleanup
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log_must zfs set devices=off $TESTPOOL/$TESTFS
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#
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# Separately create block device file and character device file, then try to
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# open them and make sure it failed.
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# Create block device file backed by a ZFS volume.
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# Verify it cannot be opened, written, and read.
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#
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create_dev_file b $TESTDIR/$TESTFILE1
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log_mustnot dd if=$TESTDIR/$TESTFILE1 of=$TESTDIR/$TESTFILE1.out count=1
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create_dev_file b $TESTDIR/$TESTFILE1 $ZVOL_DEVDIR/$TESTPOOL/$TESTVOL
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log_mustnot dd if=/dev/urandom of=$TESTDIR/$TESTFILE1 count=1 bs=128k
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log_mustnot dd if=$TESTDIR/$TESTFILE1 of=/dev/null count=1 bs=128k
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# Create character device file backed by /dev/null
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# Verify it cannot be opened and written.
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create_dev_file c $TESTDIR/$TESTFILE2
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log_mustnot dd if=$TESTDIR/$TESTFILE2 of=$TESTDIR/$TESTFILE2.out count=1
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log_mustnot dd if=/dev/urandom of=$TESTDIR/$TESTFILE2 count=1 bs=128k
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log_pass "Setting devices=off on file system and testing it pass."
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@ -36,192 +36,70 @@
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#
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# $1 device file type
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# $2 file name
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# $3 device path (used for 'b' device type)
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#
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function create_dev_file
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{
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typeset filetype=$1
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typeset filename=$2
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case $(uname) in
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FreeBSD)
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create_dev_file_freebsd "$filetype" "$filename"
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;;
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Linux)
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create_dev_file_linux "$filetype" "$filename"
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;;
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*)
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create_dev_file_illumos "$filetype" "$filename"
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;;
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esac
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return 0
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}
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function create_dev_file_freebsd
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{
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typeset filetype=$1
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typeset filename=$2
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typeset devstr=$3
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case $filetype in
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b)
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devtype=$(df -T / | grep -v "Type" | awk '{print $2}')
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case $devtype in
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zfs)
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rootpool=$(df / | grep -v "Filesystem" | \
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awk '{print $2}')
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rootpool=${rootpool#\(}
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rootpool=${rootpool%%/*}
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devstr=$(get_disklist $rootpool)
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devstr=$(echo "$devstr" | \
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awk '{print $1}')
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[[ -z $devstr ]] && \
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log_fail "Can not get block device file."
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devstr=/dev/${devstr}
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;;
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ufs)
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#
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# Get the existing block device file in current system.
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# And bring out the first one.
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#
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devstr=$(df -t ufs | \
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grep "^/dev/" | \
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head -n 1 | \
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awk '{print $1}')
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devstr=$(echo "$devstr" | \
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awk '{print $1}')
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[[ -z $devstr ]] && \
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log_fail "Can not get block device file."
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case $(uname) in
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Linux)
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#
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# stat(1) --format=FORMAT tokens
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# %t - major device type in hex
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# %T - minor device type in hex
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#
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major=$(stat --dereference --format="%t" "$devstr")
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minor=$(stat --dereference --format="%T" "$devstr")
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log_must mknod $filename b "0x${major}" "0x${minor}"
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;;
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*)
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log_unsupported "Unsupported fstype " \
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"for / ($devtype)," \
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"only ufs|zfs is supported."
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#
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# Get the device file information. i.e:
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# $devstr: block special (28/768)
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#
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devstr=$(file $devstr)
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major=${devstr##*\(}
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major=${major%%/*}
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minor=${devstr##*/}
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minor=${minor%\)}
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log_must mknod $filename b $major $minor
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;;
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esac
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#
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# Get the device file information. i.e:
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# /dev/c0t0d0s0: block special (28/768)
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#
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devstr=$(file $devstr)
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#
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# Bring out major and minor number.
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#
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major=${devstr##*\(}
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major=${major%%/*}
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minor=${devstr##*/}
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minor=${minor%\)}
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log_must mknod $filename b $major $minor
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;;
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c)
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#
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# Create device file '/dev/null'
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# Create device file '/dev/null', $devstr is unused.
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#
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log_must mknod $filename c 13 2
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;;
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*)
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log_fail "'$filetype' is wrong."
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;;
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esac
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return 0
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}
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function create_dev_file_illumos
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{
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typeset filetype=$1
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typeset filename=$2
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case $filetype in
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b)
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devtype=$(df -n / | awk '{print $3}')
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case $devtype in
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zfs)
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rootpool=$(df / | \
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awk '{print $2}')
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rootpool=${rootpool#\(}
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rootpool=${rootpool%%/*}
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devstr=$(get_disklist $rootpool)
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devstr=$(echo "$devstr" | \
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awk '{print $1}')
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[[ -z $devstr ]] && \
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log_fail "Can not get block device file."
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devstr=$DEV_DSKDIR/${devstr}
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case $(uname) in
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Linux)
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#
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# stat(1) --format=FORMAT tokens
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# %t - major device type in hex
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# %T - minor device type in hex
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#
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major=$(stat --format="%t" /dev/null)
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minor=$(stat --format="%T" /dev/null)
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log_must mknod $filename c "0x${major}" "0x${minor}"
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;;
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ufs)
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#
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# Get the existing block device file in current system.
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# And bring out the first one.
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#
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devstr=$(df-lhF ufs | \
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grep "^${DEV_DSKDIR}" | \
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awk '{print $1}')
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devstr=$(echo "$devstr" | \
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awk '{print $1}')
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[[ -z $devstr ]] && \
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log_fail "Can not get block device file."
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FreeBSD)
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#
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# Create device file '/dev/null'
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#
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major=13
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minor=2
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log_must mknod $filename b $major $minor
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;;
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*)
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log_unsupported "Unsupported fstype " \
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"for / ($devtype)," \
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"only ufs|zfs is supported."
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major=$(getmajor mm)
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minor=2
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log_must mknod $filename b $major $minor
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;;
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esac
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#
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# Get the device file information. i.e:
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# $DEV_DSKDIR/c0t0d0s0: block special (28/768)
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#
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devstr=$(file $devstr)
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#
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# Bring out major and minor number.
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#
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major=${devstr##*\(}
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major=${major%%/*}
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minor=${devstr##*/}
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minor=${minor%\)}
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log_must mknod $filename b $major $minor
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;;
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c)
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#
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# Create device file '/dev/null'
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#
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log_must mknod $filename c $(getmajor mm) 2
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;;
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*)
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log_fail "'$filetype' is wrong."
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;;
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esac
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return 0
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}
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function create_dev_file_linux
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{
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typeset filetype=$1
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typeset filename=$2
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case $filetype in
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b)
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major=$(awk '/[hsv]d/ { print $1; exit }' \
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/proc/partitions)
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minor=$(awk '/[hsv]d/ { print $2; exit }' \
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/proc/partitions)
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log_must mknod $filename b $major $minor
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;;
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c)
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#
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# Create device file '/dev/null'
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#
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major=$(stat -c %t /dev/null)
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minor=$(stat -c %T /dev/null)
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log_must mknod $filename c $major $minor
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;;
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*)
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log_fail "'$filetype' is wrong."
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@ -236,6 +114,6 @@ function cleanup
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log_must zfs set devices=on $TESTPOOL/$TESTFS
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log_must rm -f $TESTDIR/$TESTFILE1
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log_must rm -f $TESTDIR/$TESTFILE2
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log_must rm -f $TESTDIR/$TESTFILE1.out
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log_must rm -f $TESTDIR/$TESTFILE2.out
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log_must rm -f $TESTDIR/$TESTFILE1.out1
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log_must rm -f $TESTDIR/$TESTFILE1.out2
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}
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@ -32,4 +32,4 @@
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. $STF_SUITE/include/libtest.shlib
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DISK=${DISKS%% *}
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default_setup $DISK
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default_volume_setup $DISK
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