#! /bin/bash
# FS QA Test No. btrfs/016
#
# btrfs send hole punch test
#
#-----------------------------------------------------------------------
# Copyright (c) 2013 Fusion IO.  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"

tmp=`mktemp -d`
tmp_dir=send_temp_$seq

status=1	# failure is the default!

_cleanup()
{
	$BTRFS_UTIL_PROG subvolume delete $TEST_DIR/$tmp_dir/snap > /dev/null 2>&1
	$BTRFS_UTIL_PROG subvolume delete $TEST_DIR/$tmp_dir/snap1 > /dev/null 2>&1
	$BTRFS_UTIL_PROG subvolume delete $TEST_DIR/$tmp_dir/send > /dev/null 2>&1
	rm -rf $TEST_DIR/$tmp_dir
	rm -f $tmp.*
}

trap "_cleanup ; exit \$status" 0 1 2 3 15

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

# real QA test starts here
_supported_fs btrfs
_supported_os Linux
_require_test
_require_scratch
_require_fssum

_scratch_mkfs > /dev/null 2>&1

#receive needs to be able to setxattrs, including the selinux context, if we use
#the normal nfs context thing it screws up our ability to set the
#security.selinux xattrs so we need to disable this for this test
export SELINUX_MOUNT_OPTIONS=""

_scratch_mount

mkdir $TEST_DIR/$tmp_dir
$BTRFS_UTIL_PROG subvolume create $TEST_DIR/$tmp_dir/send \
	> $seqres.full 2>&1 || _fail "failed subvolume create"

dd if=/dev/urandom of=$TEST_DIR/$tmp_dir/send/foo bs=1M count=10 >> $seqres.full \
	2>&1 || _fail "dd failed"
$BTRFS_UTIL_PROG subvolume snapshot -r $TEST_DIR/$tmp_dir/send \
	$TEST_DIR/$tmp_dir/snap >> $seqres.full 2>&1 || _fail "failed snap"
$XFS_IO_PROG -c "fpunch 1m 1m" $TEST_DIR/$tmp_dir/send/foo
$BTRFS_UTIL_PROG subvolume snapshot -r $TEST_DIR/$tmp_dir/send \
	$TEST_DIR/$tmp_dir/snap1 >> $seqres.full 2>&1 || _fail "failed snap"

$FSSUM_PROG -A -f -w $tmp/fssum.snap $TEST_DIR/$tmp_dir/snap >> $seqres.full \
	2>&1 || _fail "fssum gen failed"
$FSSUM_PROG -A -f -w $tmp/fssum.snap1 $TEST_DIR/$tmp_dir/snap1 >> $seqres.full \
	2>&1 || _fail "fssum gen failed"

$BTRFS_UTIL_PROG send $TEST_DIR/$tmp_dir/snap -f $tmp/send.snap >> \
	$seqres.full 2>&1 || _fail "failed send"
$BTRFS_UTIL_PROG send $TEST_DIR/$tmp_dir/snap1 -p $TEST_DIR/$tmp_dir/snap \
	-f $tmp/send.snap1 >> $seqres.full 2>&1 || _fail "failed send"

$BTRFS_UTIL_PROG receive -f $tmp/send.snap $SCRATCH_MNT >> $seqres.full 2>&1 \
	|| _fail "failed recv"
$BTRFS_UTIL_PROG receive -f $tmp/send.snap1 $SCRATCH_MNT >> $seqres.full 2>&1 \
	|| _fail "failed recv"

$FSSUM_PROG -r $tmp/fssum.snap $SCRATCH_MNT/snap >> $seqres.full 2>&1 \
	|| _fail "fssum failed"
$FSSUM_PROG -r $tmp/fssum.snap1 $SCRATCH_MNT/snap1 >> $seqres.full 2>&1 \
	|| _fail "fssum failed"

echo "Silence is golden"
status=0 ; exit
