Files
apfstests/tests/generic/424
T
David Howells c3ff9ee3fe generic: Check the stx_attributes settable by chattr
Check the stx_attributes that can be set by calling chattr.

The script probes the filesystem with chattr to find out which of
+a, +c, +d and +i are supported before testing combinations of
attrs.  Note that if a filesystem supports chattr with these, but
doesn't paste the flag values into stx_attributes, the test will
fail as there's no way to distinguish cleared from unset.

Certain chattr flags are reflected in specific stx_attributes flags:

	chattr flag	stx_attributes flag
	+a		STATX_ATTR_APPEND
	+c		STATX_ATTR_COMPRESSED
	+d		STATX_ATTR_NODUMP
	+i		STATX_ATTR_IMMUTABLE

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>
2017-04-11 12:34:24 +08:00

156 lines
3.8 KiB
Bash
Executable File

#! /bin/bash
# FS QA Test 424
#
# Test the statx stx_attribute flags that can be set with chattr
#
#-----------------------------------------------------------------------
# Copyright (c) 2017 Red Hat, Inc. All Rights Reserved.
# Written by David Howells (dhowells@redhat.com)
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it would be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write the Free Software Foundation,
# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#-----------------------------------------------------------------------
#
seq=`basename $0`
seqres=$RESULT_DIR/$seq
echo "QA output created by $seq"
here=`pwd`
tmp=/tmp/$$
status=1
trap "_cleanup; exit \$status" 0 1 2 3 15
_cleanup()
{
cd /
rm -f $tmp.*
$CHATTR_PROG -a -i $testfile
rm -f $testfile
}
# get standard environment, filters and checks
. ./common/rc
. ./common/filter
# remove previous $seqres.full before test
rm -f $seqres.full
# real QA test starts here
# Modify as appropriate.
_supported_fs generic
_supported_os IRIX Linux
_require_test
_require_test_program stat_test
_require_statx
_require_command "$CHATTR_PROG" chattr
function check_stat () {
$here/src/stat_test $* || echo stat_test failed
}
testfile=$TEST_DIR/$seq-file
touch $testfile
# Work out what chattrs are supported on the fs under test
a_supported=""
c_supported=""
d_supported=""
i_supported=""
a_list="0"
c_list="0"
d_list="0"
i_list="0"
if $CHATTR_PROG +a $testfile >&/dev/null; then
a_supported=1
a_list="+a -a"
fi
if $CHATTR_PROG +c $testfile >&/dev/null; then
c_supported=1
c_list="+c -c"
fi
if $CHATTR_PROG +d $testfile >&/dev/null; then
d_supported=1
d_list="+d -d"
fi
if $CHATTR_PROG +i $testfile >&/dev/null; then
i_supported=1
i_list="+i -i"
fi
echo "a=$a_supported d=$d_supported c=$c_supported i=$i_supported" >>$seqres.full
if [ "$a_supported$c_supported$d_supported$i_supported" = "" ]; then
_notrun "file system doesn't support any of $CHATTR_PROG +a/+c/+d/+i"
fi
$CHATTR_PROG -a -c -d -i $testfile
###############################################################################
#
# Now do the actual test. We can turn on and off append (a), compressed (c),
# immutable (i) and no-dump (d) and theoretically see the output in the
# attribute flags. The following associations can be seen:
#
# chattr flag stx_attributes flag
# +a STATX_ATTR_APPEND
# +c STATX_ATTR_COMPRESSED
# +d STATX_ATTR_NODUMP
# +i STATX_ATTR_IMMUTABLE
#
# Note, however, that if the filesystem doesn't paste this information into
# stx_attributes, there's no way to tell the difference between cleared and
# unset.
#
###############################################################################
function try () {
echo Trying "$*" >>$seqres.full
$CHATTR_PROG ${a_supported:+$1} \
${c_supported:+$2} \
${d_supported:+$3} \
${i_supported:+$4} \
$testfile
check_stat $testfile \
${a_supported:+attr=${1/a/append}} \
${c_supported:+attr=${2/c/compressed}} \
${d_supported:+attr=${3/d/nodump}} \
${i_supported:+attr=${4/i/immutable}} \
stx_type=file \
stx_size=0 \
stx_rdev_major=0 \
stx_rdev_minor=0 \
stx_nlink=1
}
for a in $a_list; do
for c in $c_list; do
for d in $d_list; do
for i in $i_list; do
try $a $c $d $i
done
done
done
done
# For tradition's sake
echo "Silence is golden"
# Done. We leave the success determination to the output comparator.
status=0
exit