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#!/bin/sh

#This file is part of EdgeBSD NVMM

#This code is derived from software contributed to the EdgeBSD Project

#by Pierre Pronchery <khorben@EdgeBSD.org>

#Redistribution and use in source and binary forms, with or without

#modification, are permitted provided that the following conditions are met:

# * Redistributions of source code must retain the above copyright notice, this

# list of conditions and the following disclaimer.

# * 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 HOLDER 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.

#variables

#essential

VENDOR="@VENDOR@"

PACKAGE="@PACKAGE@"

#executables

CONFIGCTL="configctl"

DEBUG="_debug"

EDGEBSD_UPDATE="@SBINDIR@/edgebsd-update"

MOUNT="/sbin/mount_ffs"

SYSCTL="/sbin/sysctl"

UMOUNT="/sbin/umount"

VNDCONFIG="/usr/sbin/vndconfig"

#settings

MOUNTPOINT="/mnt/xen"

PROGNAME="nvmm-update-vms"

SYSCONFDIR="@SYSCONFDIR@"

VERBOSE=1

#load local settings

[ -f "$SYSCONFDIR/$VENDOR/$PACKAGE/$PROGNAME.conf" ] &&

. "$SYSCONFDIR/$VENDOR/$PACKAGE/$PROGNAME.conf"

[ -n "$HOME" -a -f "$HOME/.config/$VENDOR/$PACKAGE/$PROGNAME.conf" ] &&

. "$HOME/.config/$VENDOR/$PACKAGE/$PROGNAME.conf"

#functions

#debug

_debug()

{

[ $VERBOSE -le 2 ] || echo "$@" 1>&2

"$@"

}

#error

_error()

{

echo "$PROGNAME: $@"

return 2

}

#info

_info()

{

echo "$PROGNAME: $@"

}

ret=0

#find a vnd device

disknames=$($SYSCTL "hw.disknames")

i=0

for diskname in $disknames; do

[ "$diskname" = "vnd$i" ] && i=$((i + 1))

done

VND="vnd$i"

#update the VMs

for filename in "$SYSCONFDIR/EdgeBSD/edgebsd-nvmm/hosts/"*; do

[ -f "$filename" ] || continue

name=$($DEBUG $CONFIGCTL -f "$filename" "name")

drive=$($DEBUG $CONFIGCTL -f "$filename" "drive::hd0.file")

[ -n "$name" -a -n "$drive" -a -f "$drive" ] || continue

_info "$name: starting update..."

if ! $DEBUG $VNDCONFIG -c "$VND" "$drive"; then

_error "$name: could not create loop device"

ret=$?

break

#XXX assumes a disklabel and partition

if ! $DEBUG $MOUNT "/dev/${VND}a" "$MOUNTPOINT"; then

$DEBUG $VNDCONFIG -u "$VND"

_error "$name: could not mount"

ret=$?

continue

if ! $DEBUG $EDGEBSD_UPDATE -D "/mnt/xen"; then

_error "$name: could not update"

ret=$?

else

_info "$name: update completed"

if ! $DEBUG $UMOUNT "/mnt/xen"; then

$DEBUG $VNDCONFIG -u "$VND"

_error "$name: could not unmount"

ret=$?

break

if ! $DEBUG $VNDCONFIG -u "$VND"; then

_error "$name: could not remove loop device"

ret=$?

break

done

exit $ret