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apfstests/tests/generic/062
T
Eric Biggers 84db46e3d3 generic/062: don't assume same readdir order after re-creating directory
generic/062 uses getfattr to dump xattrs for a directory tree, then
deletes and recreates that directory tree, then dumps the xattrs
again and compares the dump to the original.  This was failing when
run on ext4 with encryption enabled because getfattr's output is in
readdir order, but ext4 encryption by design chooses unpredictable
encrypted filenames for each new directory, causing the readdir
order to change after backup and restore.  It is not really a valid
assumption that the readdir order will always be the same, so update
the test to sort the filenames, removing this assumption.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>
2016-12-18 12:14:29 +08:00

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#! /bin/bash
# FS QA Test No. 062
#
# Exercises the getfattr/setfattr tools
# Derived from tests originally written by Andreas Gruenbacher for ext2
#
#-----------------------------------------------------------------------
# Copyright (c) 2000-2002 Silicon Graphics, Inc. All Rights Reserved.
#
# 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 # failure is the default!
# get standard environment, filters and checks
. ./common/rc
. ./common/filter
. ./common/attr
_cleanup()
{
cd /
echo; echo "*** unmount"
_scratch_unmount 2>/dev/null
rm -f $tmp.*
}
trap "_cleanup; exit \$status" 0 1 2 3 15
getfattr()
{
$GETFATTR_PROG --absolute-names -dh $@ 2>&1 | _filter_scratch
}
setfattr()
{
$SETFATTR_PROG $@ 2>&1 | _filter_scratch
}
_create_test_bed()
{
echo "*** create test bed"
touch $SCRATCH_MNT/reg
mkdir -p $SCRATCH_MNT/dir
ln -s $SCRATCH_MNT/dir $SCRATCH_MNT/lnk
mkdir $SCRATCH_MNT/dev
mknod $SCRATCH_MNT/dev/b b 0 0
mknod $SCRATCH_MNT/dev/c c 1 3
mknod $SCRATCH_MNT/dev/p p
# sanity check
find $SCRATCH_MNT | LC_COLLATE=POSIX sort | _filter_scratch | grep -v "lost+found"
}
# real QA test starts here
_supported_fs generic
_supported_os Linux
_require_scratch
_require_attrs
rm -f $tmp.backup1 $tmp.backup2 $seqres.full
# real QA test starts here
_scratch_mkfs > /dev/null 2>&1 || _fail "mkfs failed"
_scratch_mount || _fail "mount failed"
_create_test_bed
# In kernels before 3.0, getxattr() fails with EPERM for an attribute which
# cannot exist. Later kernels fail with ENODATA. Accept both results.
invalid_attribute_filter() {
sed -e "s:\(No such attribute\|Operation not permitted\):No such attribute or operation not permitted:"
}
if [ "$USE_ATTR_SECURE" = yes ]; then
ATTR_MODES="user security trusted"
else
ATTR_MODES="user trusted"
fi
for nsp in $ATTR_MODES; do
for inode in reg dir lnk dev/b dev/c dev/p; do
echo; echo "=== TYPE $inode; NAMESPACE $nsp"; echo
echo "*** set/get one initially empty attribute"
setfattr -h -n $nsp.name $SCRATCH_MNT/$inode
getfattr -m $nsp $SCRATCH_MNT/$inode
echo "*** overwrite empty, set several new attributes"
setfattr -h -n $nsp.name -v 0xbabe $SCRATCH_MNT/$inode
setfattr -h -n $nsp.name2 -v 0xdeadbeef $SCRATCH_MNT/$inode
setfattr -h -n $nsp.name3 -v 0xdeface $SCRATCH_MNT/$inode
echo "*** fetch several attribute names and values (hex)"
getfattr -m $nsp -e hex $SCRATCH_MNT/$inode
echo "*** fetch several attribute names and values (base64)"
getfattr -m $nsp -e base64 $SCRATCH_MNT/$inode
echo "*** shrink value of an existing attribute"
setfattr -h -n $nsp.name2 -v 0xdeaf $SCRATCH_MNT/$inode
getfattr -m $nsp -e hex $SCRATCH_MNT/$inode
echo "*** grow value of existing attribute"
setfattr -h -n $nsp.name2 -v 0xdecade $SCRATCH_MNT/$inode
getfattr -m $nsp -e hex $SCRATCH_MNT/$inode
echo "*** set an empty value for second attribute"
setfattr -h -n $nsp.name2 $SCRATCH_MNT/$inode
getfattr -m $nsp -n $nsp.name2 $SCRATCH_MNT/$inode 2>&1 | invalid_attribute_filter
echo "*** overwrite empty value"
setfattr -h -n $nsp.name2 -v 0xcafe $SCRATCH_MNT/$inode
getfattr -m $nsp -e hex -n $nsp.name2 $SCRATCH_MNT/$inode 2>&1 | invalid_attribute_filter
echo "*** remove attribute"
setfattr -h -x $nsp.name2 $SCRATCH_MNT/$inode
getfattr -m $nsp -e hex -n $nsp.name2 $SCRATCH_MNT/$inode 2>&1 | invalid_attribute_filter
echo "*** final list (strings, type=$inode, nsp=$nsp)"
getfattr -m '.' -e hex $SCRATCH_MNT/$inode
done
done
#
# Test the directory descent code
#
echo; echo
_extend_test_bed()
{
echo "*** extend test bed"
# must set some descents' attributes to be useful
mkdir -p $SCRATCH_MNT/here/up/ascend
mkdir -p $SCRATCH_MNT/descend/down/here
find $SCRATCH_MNT/descend | xargs setfattr -n user.x -v yz
find $SCRATCH_MNT/descend | xargs setfattr -n user.1 -v 23
find $SCRATCH_MNT/here | xargs setfattr -n trusted.a -v bc
find $SCRATCH_MNT/here | xargs setfattr -n trusted.9 -v 87
# whack a symlink in the middle, just to be difficult
ln -s $SCRATCH_MNT/here/up $SCRATCH_MNT/descend/and
# dump out our new starting point
find $SCRATCH_MNT | LC_COLLATE=POSIX sort | _filter_scratch | grep -v "lost+found"
}
_extend_test_bed
echo
echo "*** directory descent with us following symlinks"
getfattr -h -L -R -m '.' -e hex $SCRATCH_MNT | _sort_getfattr_output
echo
echo "*** directory descent without following symlinks"
getfattr -h -P -R -m '.' -e hex $SCRATCH_MNT | _sort_getfattr_output
#
# Test the backup/restore code
#
echo; echo
_backup()
{
# Note: we don't filter scratch here since we need to restore too. But
# we *do* sort the output by path, since it otherwise would depend on
# readdir order, which on some filesystems may change after re-creating
# the files.
$GETFATTR_PROG --absolute-names -dh -R -m '.' $SCRATCH_MNT | _sort_getfattr_output >$1
echo BACKUP $1 >>$seqres.full
cat $1 >> $seqres.full
[ ! -s $1 ] && echo "warning: $1 (backup file) is empty"
}
echo "*** backup everything"
_backup $tmp.backup1
echo "*** clear out the scratch device"
rm -fr $SCRATCH_MNT/*
echo "AFTER REMOVE" >>$seqres.full
getfattr -L -R -m '.' $SCRATCH_MNT >>$seqres.full
echo "*** reset test bed with no extended attributes"
_create_test_bed
_extend_test_bed
echo "*** restore everything"
setfattr -h --restore=$tmp.backup1
_backup $tmp.backup2
echo "AFTER RESTORE" >>$seqres.full
getfattr -L -R -m '.' $SCRATCH_MNT >>$seqres.full
echo "*** compare before and after backups"
diff $tmp.backup1 $tmp.backup2
if [ $? -ne 0 ]; then
echo "urk, failed - creating $seq.backup1 and $seq.backup2"
cp $tmp.backup1 $seq.backup1 && cp $tmp.backup2 $seq.backup2
status=1
exit
fi
# success, all done
status=0
exit