#!/bin/sh
# $UFP: config/freebsd/E590T/usr/src/libexec/rc/rc.d/unmount_localfs,v 1.1 2021-03-24 21:57:39 trond Exp $

# Copyright © 2021, Trond Endrestøl <Trond.Endrestol@ximalas.info>

# 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.

# PROVIDE: unmount_localfs
# KEYWORD: shutdown

. /etc/rc.subr

name="unmount_localfs"
desc="Unmount any local filesystems of the types devfs, fdescfs, linprocfs, linsysfs, and procfs before other local filesystem, e.g. ZFS, are unmounted."
start_cmd=":"
stop_cmd="unmount_localfs_stop"
rcvar="unmount_localfs_enable"

unmount_localfs_stop ()
{
  local reverse

  # We try and stay away from /dev and its descending filesystems.
  for fs in `df -t devfs,fdescfs,linprocfs,linsysfs,procfs | awk '/\// { print $6 }' | grep -v '^/dev'`; do
    reverse="${fs} ${reverse}"
  done

  for fs in ${reverse}; do
    echo "${name}: trying to unmount ${fs}"
    umount ${fs}
  done
}

load_rc_config ${name}
run_rc_command "${1}"

# EOF