# $NetBSD: t_umountstress.sh,v 1.5 2013/05/31 14:40:48 gson Exp $
#
# Copyright (c) 2013 The NetBSD Foundation, Inc.
# All rights reserved.
#
# 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 NETBSD FOUNDATION, INC. 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 FOUNDATION OR CONTRIBUTORS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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#

setvar TMPMP = 'umount-stress_mount'
setvar TMPIM = 'umount-stress.im'

setvar VND = 'vnd0'
setvar BVND = "/dev/${VND}"
setvar CVND = "/dev/r${VND}"
setvar MPART = 'a'

atf_test_case fileop cleanup
proc fileop_head {
	atf_set "descr" "Checks unmounting a filesystem doing file operations"
	atf_set "require.user" "root"
}
proc fileop_body {
	cat >disktab <<< """
floppy288|2.88MB 3.5in Extra High Density Floppy:\
	:ty=floppy:se#512:nt#2:rm#300:ns#36:nc#80:\
	:pa#5760:oa#0:ba#4096:fa#512:ta=4.2BSD:\
	:pb#5760:ob#0:\
	:pc#5760:oc#0:
"""

	echo "*** Creating a dummy directory tree at" \
	     "${TMPMP} mounted on ${TMPIM}"

	atf_check -o ignore -e ignore mkdir ${TMPMP}
	atf_check -o ignore -e ignore dd if=/dev/zero of=${TMPIM} count=5860
	atf_check -o ignore -e ignore vnconfig -v ${VND} ${TMPIM}
	atf_check -o ignore -e ignore disklabel -f disktab -rw ${VND} floppy288
	atf_check -o ignore -e ignore newfs -i 500 -b 8192 -f 1024 ${CVND}${MPART}
	atf_check -o ignore -e ignore mount -o async ${BVND}${MPART} ${TMPMP}

	echo "*** Testing fileops"

	touch ${TMPMP}/hold
	exec 9< ${TMPMP}/hold

	shell {
		for j in 0 1 2 {
		for k in 0 1 2 3 4 5 6 7 8 9 {
			if ! dd msgfmt=quiet if=/dev/zero \
				count=1 of=${TMPMP}/test$i$j$k {
				echo 1 >result
				exit
			}
		}
		}
		echo 0 >result
	} &
	setvar busypid = ""$!

	while ! test -f result {
		if setvar err = $(umount ${TMPMP} 2>&1) {
			kill $busypid
			exec 9<&-
			wait
			atf_fail "Unmount succeeded while busy"
			return
		}

		case (err) {
		*:\ Device\ busy {
			}
		* {
			kill $busypid
			exec 9<&-
			wait
			atf_fail "Unmount failed: $err"
			return
			}
		}
	}

	exec 9<&-
	wait

	setvar rc = $(cat result)
	rm -f result

	case (rc) {
	0 { }
	* { atf_fail "File operation failed"
	}
}
}
proc fileop_cleanup {
	echo "*** Cleaning up ${TMPMP}, ${TMPIM}."
	umount -f ${TMPMP}
	vnconfig -u ${VND}
}

atf_test_case mountlist cleanup
proc mountlist_head {
	atf_set "descr" "Checks unmounting a filesystem using mountlist"
	atf_set "require.user" "root"
}
proc mountlist_body {
	cat >disktab <<< """
floppy288|2.88MB 3.5in Extra High Density Floppy:\
	:ty=floppy:se#512:nt#2:rm#300:ns#36:nc#80:\
	:pa#5760:oa#0:ba#4096:fa#512:ta=4.2BSD:\
	:pb#5760:ob#0:\
	:pc#5760:oc#0:
"""

	echo "*** Creating a dummy directory tree at" \
	     "${TMPMP} mounted on ${TMPIM}"

	atf_check -o ignore -e ignore mkdir ${TMPMP}
	atf_check -o ignore -e ignore dd if=/dev/zero of=${TMPIM} count=5860
	atf_check -o ignore -e ignore vnconfig -v ${VND} ${TMPIM}
	atf_check -o ignore -e ignore disklabel -f disktab -rw ${VND} floppy288
	atf_check -o ignore -e ignore newfs -i 500 -b 8192 -f 1024 ${CVND}${MPART}
	atf_check -o ignore -e ignore mount -o async ${BVND}${MPART} ${TMPMP}

	echo "*** Testing mountlist"

	shell {
		for j in 0 1 2 3 4 5 6 7 8 9 {
		for k in 0 1 2 3 4 5 6 7 8 9 {
			if ! setvar out = $(mount) {
				echo 1 >result
				exit
			}
		}
		}
		echo 0 >result
	} &
	setvar busypid = ""$!

	while ! test -f result {
		if setvar err = $(umount ${TMPMP} 2>&1) {
			if ! mount -o async ${BVND}${MPART} ${TMPMP} {
				kill $busypid
				exec 9<&-
				wait
				atf_fail "Remount failed"
				return
			}
			continue
		}

		case (err) {
		*:\ Device\ busy {
			}
		* {
			kill $busypid
			exec 9<&-
			wait
			atf_fail "Unmount failed: $err"
			return
			}
		}
	}

	exec 9<&-
	wait

	setvar rc = $(cat result)
	rm -f result

	case (rc) {
	0 { }
	* { atf_fail "Mountlist operation failed"
	}
}
}
proc mountlist_cleanup {
	echo "*** Cleaning up ${TMPMP}, ${TMPIM}."
	umount -f ${TMPMP}
	vnconfig -u ${VND}
}

proc atf_init_test_cases {
	atf_add_test_case fileop
	atf_add_test_case mountlist
}