#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2017 Red Hat Inc., All Rights Reserved.
#
# FS QA Test 001
#
# Test nfs4_getfacl gets ACL list correctly from server when the ACL length is
# close enough to the end of a page. On buggy NFS client getxattr could return
# ERANGE. Upstream commit ed92d8c137b7 ("NFSv4: fix getacl ERANGE for some ACL
# buffer sizes") fixed this bug.
#
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.* $acltest.*
}

# 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
_supported_fs nfs
_supported_os Linux
_require_test_nfs_version 4
_require_command $NFS4_SETFACL_PROG "nfs4_setfacl"
_require_command $NFS4_GETFACL_PROG "nfs4_getfacl"

acltest=$TEST_DIR/acltest.$seq
rm -f $acltest.*
touch $acltest.file $acltest.list

# Setup a carefully made ACE list to make attr buffer length is close enough to
# PAGE_SIZE (size is 4088 in this case, and this only works for 4k page size)
# that leaves too little room for adding extra attr bitmap in this page
echo "A::OWNER@:RW" >$acltest.list
for ((i=9802; i < 10002; i++)); do echo "A::$i:RW" >>$acltest.list; done
echo "A::GROUP@:RW" >>$acltest.list
echo "A::EVERYONE@:RW" >>$acltest.list

# Save ACL to testfile
$NFS4_SETFACL_PROG -S $acltest.list $acltest.file

# Dump ACL, expect correct number of ACE entries
$NFS4_GETFACL_PROG $acltest.file >>$seqres.full 2>&1
$NFS4_GETFACL_PROG $acltest.file | grep -c "^A"

# success, all done
status=0
exit