#!/bin/bash
#
# /etc/rc.shutdown
#

. /etc/rc.conf
. /etc/rc.d/functions

# avoid staircase effect
stty onlcr

echo " "
printhl "Initiating Shutdown..."
echo " "

run_hook shutdown_start

[[ -x /etc/rc.local.shutdown ]] && /etc/rc.local.shutdown

stop_all_daemons

status 'Saving Random Seed' /usr/lib/systemd/systemd-random-seed save

[[ $TIMEZONE ]] && status "Configuring Time Zone" set_timezone "$TIMEZONE"

# Write to wtmp file before unmounting
halt -w

# stop monitoring of lvm2 groups before unmounting filesystems
[[ $USELVM = [Yy][Ee][Ss] && -x $(type -P lvm) ]] &&
    status "Deactivating monitoring of LVM2 groups" vgchange --monitor n

# any future uevents can and should be ignored
status "Shutting down UDev" udevadm control --exit

run_hook shutdown_prekillall

kill_all

run_hook shutdown_postkillall

run_hook shutdown_preumount

# unmount any non-api partitions that are backed by swap, we don't want to
# move their contents into memory (waste of time and might caues OOM).
status "Unmounting Swap-backed Filesystems" umount_all "tmpfs"

# almost everything is dead now, so the swap should hopefully be relatively
# empty, and quick to switch off
status "Deactivating Swap" swapoff -a

status "Unmounting Non-API Filesystems" umount_all

run_hook shutdown_postumount

# Kill non-root encrypted partition mappings
if [[ -f /etc/crypttab ]] && type -p cryptsetup >/dev/null; then
    stat_busy "Deactivating encrypted volumes:"
        # Maybe someone has LVM on an encrypted block device
        # executing an extra vgchange is errorless
        [[ $USELVM = [Yy][Ee][Ss] ]] && vgchange --sysinit -a n &>/dev/null
        do_lock() {
            stat_append "${1}.."
            if cryptsetup remove "$1" &>/dev/null; then
                stat_append "ok "
            else
                stat_append "failed "
            fi
        }
        read_crypttab do_lock
    stat_done
fi

[[ $USELVM = [Yy][Ee][Ss] && -x $(type -P lvm) && -d /sys/block ]] &&
    status "Deactivating LVM2 groups" vgchange --sysinit -a n &>/dev/null

run_hook shutdown_poweroff

if [[ -x /run/initramfs/shutdown ]]; then

    # decide what we want to do
    if [[ $RUNLEVEL = 0 ]]; then
        action="poweroff"
    else
        action="reboot"
    fi

    # make /run/initrafs a mount
    mount --bind /run/initramfs /run/initramfs

    # in case someone has shared our mountpoints, unshare them
    mount --make-private /run/initramfs
    mount --make-private /

    # bind all api mounts
    mkdir -p /run/initramfs/{sys,proc,dev,run,oldroot}
    mount --bind /sys /run/initramfs/sys
    mount --bind /proc /run/initramfs/proc
    mount --bind /dev /run/initramfs/dev
    mount --bind /run /run/initramfs/run

    # enter shutdownramfs
    cd /run/initramfs
    pivot_root . oldroot

    #reexec init
    /oldroot/sbin/init u

    # run /shutdown in the new root
    exec chroot . /shutdown $action </dev/console >/dev/console 2>&1

else

    status "Remounting Root Filesystem Read-only" \
        mount -o remount,ro /

    # Power off or reboot
    printsep
    if [[ $RUNLEVEL = 0 ]]; then
        printhl "${C_H2}POWER OFF"
        poweroff -d -f -h -i
    else
        printhl "${C_H2}REBOOTING"
        # if kexec is installed and a kernel is loaded, use it
        [[ -x $(type -P kexec) ]] && kexec -e &>/dev/null
        reboot -d -f -i
    fi

fi

# End of file
# vim: set ts=2 sw=2 noet: