#!/sbin/runscript
# Copyright 2007 Roy Marples
# 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 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.

description="Mounts disks and swap according to /etc/fstab."

depend() {
	need checkfs
}

start() {
	# Mount local filesystems in /etc/fstab.
	local types="noproc" x=
	for x in ${net_fs_list}; do
		types="${types},${x}"
	done

	ebegin "Mounting local filesystems"
	mount -at "${types}"
	eend $? "Some local filesystem failed to mount"

	# Always return 0 - some local mounts may not be critical for boot
	return 0
}

stop() {
	# Don't unmount anything for VPS systems
	[ "${RC_SYS}" = "VPS" ] && return 0

	# We never unmount / or /dev or $RC_SVCDIR
	local x= no_umounts="/|/dev|/dev/.*|${RC_SVCDIR}"

	# RC_NO_UMOUNTS is an env var that can be set by plugins
	OIFS=${IFS} SIFS=${IFS-y}
	IFS=$IFS:
	for x in ${no_umounts} ${RC_NO_UMOUNTS}; do
		no_umounts="${no_umounts}|${x}"
	done
	if [ "${SIFS}" = "y" ]; then
		IFS=$OIFS
	else
		unset IFS
	fi

	if [ "${RC_UNAME}" = "Linux" ]; then
		no_umounts="${no_umounts}|/proc|/proc/.*|/sys|/sys/.*"
	fi
	no_umounts="^(${no_umounts})$"

	# Flush all pending disk writes now
	sync; sync

	# Try to unmount all tmpfs filesystems not in use, else a deadlock may
	# occure, bug #13599.
	# As $RC_SVCDIR may also be tmpfs we cd to it to lock it
	cd "${RC_SVCDIR}"
	umount -a -t tmpfs 2>/dev/null

	. "${RC_LIBDIR}"/sh/rc-mount.sh

	# Umount loopback devices
	einfo "Unmounting loopback devices"
	eindent
	do_unmount "umount -d" --skip-point-regex "${no_umounts}" \
		--node-regex "^/dev/loop"
	eoutdent

	# Now everything else, except network filesystems as the
	# network should be down by this point.
	einfo "Unmounting filesystems"
	eindent
	local fs=
	for x in ${net_fs_list}; do
		fs="${fs}${fs:+|}${x}"
	done
	[ -n "${fs}" ] && fs="^(${fs})$"
	do_unmount "umount" --skip-point-regex "${no_umounts}" \
		${fs:+--skip-fstype-regex} ${fs} --nonetdev
	eoutdent

	return 0
}

# vim: set ts=4 :