#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2019 Red Hat, Inc.  All Rights Reserved.
#
# FS QA Test 508
#
# Test project quota inheritance flag, uncover xfsprogs bug fixed by xfsprogs
# commit b136f48b19a5 ("xfs_quota: fix false error reporting of project
# inheritance flag is not set")
#
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 xfs
_require_scratch
_require_xfs_quota

cat >$tmp.projects <<EOF
10:$SCRATCH_MNT/dir
EOF

cat >$tmp.projid <<EOF
root:0
test:10
EOF

QUOTA_CMD="$XFS_QUOTA_PROG -D $tmp.projects -P $tmp.projid"

filter_xfs_pquota()
{
        perl -ne "
s,$tmp.projects,[PROJECTS_FILE],;
s,$SCRATCH_MNT,[SCR_MNT],;
s,$SCRATCH_DEV,[SCR_DEV],;
        print;"
}

do_quota_nospc()
{
	local file=$1
	local exp=$2

	echo "Write $file, expect $exp:" | _filter_scratch
	$XFS_IO_PROG -t -f -c "pwrite 0 5m" $file 2>&1 >/dev/null | \
		_filter_xfs_io_error
	rm -f $file
}

_scratch_mkfs_xfs >>$seqres.full 2>&1
_qmount_option "prjquota"
_qmount
_require_prjquota $SCRATCH_DEV

mkdir $SCRATCH_MNT/dir
$QUOTA_CMD -x -c 'project -s test' $SCRATCH_MNT >>$seqres.full 2>&1
$QUOTA_CMD -x -c 'limit -p bsoft=1m bhard=2m test' $SCRATCH_MNT

# test the Project inheritance bit is a directory only flag, and it's set on
# directory by default. Expect no complain about "project inheritance flag is
# not set" on regular file.
echo "== The parent directory has Project inheritance bit by default =="
touch $SCRATCH_MNT/dir/foo
mkdir $SCRATCH_MNT/dir/dir_inherit
touch $SCRATCH_MNT/dir/dir_inherit/foo
$QUOTA_CMD -x -c 'project -c test' $SCRATCH_MNT | filter_xfs_pquota
echo ""

# test the quota and the project inheritance quota work well
do_quota_nospc $SCRATCH_MNT/dir/foo ENOSPC
do_quota_nospc $SCRATCH_MNT/dir/dir_inherit/foo ENOSPC
echo ""

# test the project quota won't be inherited, if removing the Project
# inheritance bit
echo "== After removing parent directory has Project inheritance bit =="
$XFS_IO_PROG -x -c "chattr -P" $SCRATCH_MNT/dir
touch $SCRATCH_MNT/dir/foo
mkdir $SCRATCH_MNT/dir/dir_uninherit
touch $SCRATCH_MNT/dir/dir_uninherit/foo
$QUOTA_CMD -x -c 'project -c test' $SCRATCH_MNT | filter_xfs_pquota
echo ""

# after remove the Project inheritance bit of the original parent directory,
# then verify:
# 1) there's not any limit on the original parent directory and files under it
# 2) the quota limit of sub-directory which has inherited still works
# 3) there's not limit on the new sub-dirctory (not inherit from parent)
do_quota_nospc $SCRATCH_MNT/dir/foo Success
do_quota_nospc $SCRATCH_MNT/dir/dir_inherit/foo ENOSPC
do_quota_nospc $SCRATCH_MNT/dir/dir_uninherit/foo Success

_scratch_unmount
# success, all done
status=0
exit