tests/generic/400

#! /bin/bash
# FS QA Test 400
#
# test out high quota ids retrieved by Q_GETNEXTQUOTA
# Request for next ID near 2^32 should not wrap to 0
#
# Designed to use the new Q_GETNEXTQUOTA quotactl
#
#-----------------------------------------------------------------------
# Copyright (c) 2016 Red Hat, 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!
trap "_cleanup; exit \$status" 0 1 2 3 15

_cleanup()
{
	cd /
	rm -f $tmp.*
}

# get standard environment, filters and checks
. ./common/rc
. ./common/filter
. ./common/quota

# remove previous $seqres.full before test
rm -f $seqres.full

# real QA test starts here

_supported_fs generic
_supported_os Linux
_require_quota
_require_scratch

_scratch_mkfs >> $seqres.full 2>&1

MOUNT_OPTIONS="-o usrquota,grpquota"
_qmount
_require_getnextquota

echo "Launch all quotas"

# We want to create a block of quotas for an id very near
# 2^32, then ask for the next quota after it.  The returned
# ID should not overflow to 0.

# Populate  with 2^32-4
ID=4294967292
setquota -u $ID $ID $ID $ID $ID $SCRATCH_MNT
touch ${SCRATCH_MNT}/${ID}
chown ${ID} ${SCRATCH_MNT}/${ID}

# remount just for kicks, make sure we get it off disk
_scratch_unmount
_qmount

# Ask for the next quota after $ID; should get nothing back
# If kernelspace wraps, we'll get 0 back.
for TYPE in u g; do
	let NEXT=ID+1
	echo "Ask for ID after $NEXT expecting nothing"
	$here/src/test-nextquota -i $NEXT -${TYPE} -d $SCRATCH_DEV
done

# success, all done
status=0
exit