#! /bin/bash
# FS QA Test No. 298
#
# Test that inline symlinks are removed from the inode when an extended
# attributes forces it into being remote symlink.
# Warning: this test will ASSERT on unpatched DEBUG XFS.
#
#-----------------------------------------------------------------------
# Copyright (c) 2013 SGI.  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

# real QA test starts here

# Modify as appropriate. This is a XFS specific bug. xfs_db also limits
# this test to xfs
_supported_fs xfs
_supported_os Linux

_require_scratch

rm -f $seqres.full
_scratch_mkfs_xfs >/dev/null 2>&1

SYMLINK_FILE="$SCRATCH_MNT/symlink"
SYMLINK=""
SYMLINK_ADD="0123456789ABCDEF01234567890ABCDEF"

# test from 32 to MAXPATHLEN sized symlink. This should make sure that
# 256-1024 byte version 2 and 3 inodes are covered.
SIZE=32
while [ $SIZE -lt 1024 ];do
	_scratch_mount >/dev/null 2>&1
	cd $SCRATCH_MNT
	echo "Testing symlink size $SIZE"
	SYMLINK="${SYMLINK}${SYMLINK_ADD}"
	ln -s $SYMLINK $SYMLINK_FILE > /dev/null 2>&1

	inode=`ls -li $SYMLINK_FILE | awk '{print $1}'`
# add the extended attributes
	attr  -Rs 1234567890ab $SYMLINK_FILE < /dev/null > /dev/null 2>&1
	attr  -Rs 1234567890ac $SYMLINK_FILE < /dev/null > /dev/null 2>&1
	attr  -Rs 1234567890ad $SYMLINK_FILE < /dev/null > /dev/null 2>&1
# remove the extended attributes
	attr  -Rr 1234567890ab $SYMLINK_FILE > /dev/null 2>&1
	attr  -Rr 1234567890ac $SYMLINK_FILE > /dev/null 2>&1
	attr  -Rr 1234567890ad $SYMLINK_FILE > /dev/null 2>&1
# remove the symlink - make sure ifree removes the remote symlink.
	rm $SYMLINK_FILE
# umount and check the number of extents on the inode. Should be 0.
	cd
	_scratch_unmount >/dev/null 2>&1
	_scratch_xfs_db  -c "inode $inode" -c "p core.nextents"

	let SIZE=$SIZE+32
done

status=0
exit
