#!/bin/sh

#
# SPDX-License-Identifier: BSD-2-Clause
#
# Copyright (c) 2023 Peter Holm <pho@FreeBSD.org>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#

# Snapshot test
# Variation of force13.sh, but uses "gnop -f destroy"

# Seen:
# UFS: forcibly unmounting /dev/md10.nop from /mnt
# panic: flush_pagedep_deps: failed to flush inodedep

[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
. ../default.cfg

set -u
log=/tmp/gnop13.sh.log
mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint
mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart
truncate -s 10g $diskimage
mdconfig -a -t vnode -f $diskimage -u $mdstart
flags=$newfs_flags
[ `jot -r 1 0 1` -eq 1 ] && flags="-j"

echo "newfs $flags md$mdstart"
newfs $flags md$mdstart > /dev/null 2>&1

# Exclude rename for now due to log0374.txt
export TESTPROGS=`cd ..; find testcases/ -perm -1 -type f | \
    egrep -Ev "/run/|/badcode/|/pty/|/shm/|/socket/|sysctl|tcp|thr|udp|rename"`
export runRUNTIME=3m
export RUNDIR=$mntpoint/stressX
export CTRLDIR=$mntpoint/stressX.control
start=`date +%s`
while [ $((`date +%s` - start)) -lt $((15 * 60)) ]; do
	gnop create /dev/md$mdstart || exit 1
	mount /dev/md$mdstart.nop $mntpoint || exit 1
	rm -fr $mntpoint/lost+found
	chmod 777 $mntpoint

	su $testuser -c 'cd ..; ./testcases/run/run $TESTPROGS' > \
	    /dev/null 2>&1 &

	t=`jot -r 1 60 120`
	st=`date +%s`
	for i in `jot 10`; do
		[ -d $mntpoint/.snap ] || break
		rm -f $mntpoint/.snap/$i
		echo "mksnap_ffs $mntpoint $mntpoint/.snap/$i"
		mksnap_ffs $mntpoint $mntpoint/.snap/$i
		sleep `jot -r 1 1 5`
		[ $((`date +%s` - st)) -ge $t ] && break
	done &
	sleep `jot -r 1 60 120`
	while [ -c /dev/md$mdstart.nop ]; do
		echo "gnop destroy -f /dev/md$mdstart.nop"
		gnop destroy -f /dev/md$mdstart.nop || sleep 1
	done
	n=0
	st=`date +%s`
	while mount | grep -q "on $mntpoint "; do
		[ $n -eq 0 ] && /bin/echo -n "Waiting for $mntpoint to force umount ..."
		n=$((n + 1))
		sleep 2
		if [ $((`date +%s` - st)) -ge 180 ]; then
			echo "Giving up on waiting for umount of $mntpoint"
			umount $mntpoint || umount -f $mntpoint
			break
		fi
	done
	[ $n -ne 0 ] && echo

	../tools/killall.sh
	wait
	mount | grep -q "on $mntpoint " && umount -f $mntpoint
	c=0
	# Run fsck minimum two times
	for i in `jot 5`; do
		fsck_ffs -fy /dev/md$mdstart > $log 2>&1; s=$?
		grep -q CLEAN $log && grep -q "MODIFIED" $log && c=$((c+=1))
		grep -Eq "FILE SYSTEM WAS MODIFIED" $log || break
	done
	[ $c -gt 1 ] &&
	    { echo "Note: FS marked clean+modified $c times out of $i fsck runs"; s=101; }
	[ $s -ne 0 ] && break
	grep -Eq "IS CLEAN|MARKED CLEAN" $log || { s=102; break; }
done
[ $s -eq 101 ] && s=0 # Ignore CLEANish problem for now
if [ $s -eq 0 ]; then
	mount /dev/md$mdstart.nop $mntpoint
	cp -R /usr/include $mntpoint
	dd if=/dev/zero of=$mntpoint/big bs=1m count=10 status=none
	find $mntpoint/* -delete

	# Check the RO snapshots
	for f in $mntpoint/.snap/*; do
		c=0
		for i in `jot 5`; do
			echo "fsck_ffs -fy $f"
			fsck_ffs -fy $f > $log 2>&1; s=$?
			grep -q CLEAN $log && grep -q "MODIFIED" $log && c=$((c+=1))
			grep -Eq "FILE SYSTEM WAS MODIFIED" $log || break
		done
		[ $c -gt 1 ] &&
		    { echo "Note: snapshot $i marked clean+modified $c times out of $i fsck runs"; s=201; }
		[ $s -ne 0 ] && break
		grep -Eq "IS CLEAN|MARKED CLEAN" $log ||
		    { s=202; tail -10 $log; break; }
	done
	umount $mntpoint
	mdconfig -d -u $mdstart
	rm -f $diskimage $log
fi
exit $s