path: root/remote/modules/vmchooser/data/opt/openslx/scripts/vmchooser-run_virt

#!/bin/bash
# Full bash required
# -----------------------------------------------------------------------------
# Copyright (c) 2007..2010 - RZ Uni FR
# Copyright (c) 2007..2013 - OpenSLX GmbH
#
# This program is free software distributed under the GPL version 2.
# See http://openslx.org/COPYING
#
# If you have any feedback please consult http://openslx.org/feedback and
# send your suggestions, praise, or complaints to feedback@openslx.org
#
# General information about OpenSLX can be found at http://openslx.org/
# -----------------------------------------------------------------------------
# run-virt.sh
#    - This is the generic wrapper for the several virtualization solutions.
#      The idea is to setup a set of variables used by at least two different
#      tools and then include the specific plugin which configures the speci-
#      fied virtualization tool.
################################################################################

################################################################################
### Define default dirs / get configs
################################################################################

VMCHOOSER_DIR="/opt/openslx/vmchooser"
VMCHOOSER_CONF_DIR="$VMCHOOSER_DIR/config"

# include general configuration from vmchooser
[ -f "$VMCHOOSER_CONF_DIR/vmchooser.conf" ] && . "$VMCHOOSER_CONF_DIR/vmchooser.conf"
# load general virtualization information
[ -f "$VMCHOOSER_CONF_DIR/virtualization.conf" ] && . "$VMCHOOSER_CONF_DIR/virtualization.conf"
# Load general openslx config
[ -f "/opt/openslx/config" ] && . "/opt/openslx/config"

################################################################################
### Functions used throughout the script
################################################################################

# function to write to stdout and logfile
LOGFILE="/var/log/openslx/run-virt.${USER}.$$.log"
writelog () {
	# write to stdout
	echo -e "$1"
	# log into file
	echo -e "$1" >> "${LOGFILE}"
}

# Clean exit will be called at the end of this script
cleanexit () {
	sleep 1
	# remove config dirs when exit
	if echo "${RMDIRS}" 2>/dev/null | grep -q "${xmlvirt}"; then
		writelog "${xmlvirt} exited. Cleaning up... \c"
		rm -rf -- ${RMDIRS} >/dev/null 2>&1
		writelog "done"
	fi
	# Disconnect dnbd3 device
	if [ -n "$dnbd3" ]; then
		for timeout in 1 1 2; do
			dnbd3-client -d "$dnbd3" -c -d "$dnbd3" -c && break
			writelog "dnbd3 still busy...."
			sleep "$timeout"
		done
	fi
	# Kill LPD
	kill "$PID_LPD"
	# Remove spool directory for printjobs from VM
	[ -n "${SPOOLDIR}" ] && rm -rf -- "${SPOOLDIR}"
	
	[ $# -gt 0 ] && exit "$1"
	exit 129 # No exit code was given :/
}

function rv_clean_string ()
{
	if [ "$#" -ge 1 ]; then
		echo "$@" | tr '[A-Z]' '[a-z]' | tr -d -c '[a-z0-9]'
	else
		tr '[A-Z]' '[a-z]' | tr -d -c '[a-z0-9]'
	fi
}

trap cleanexit SIGINT SIGTERM

# check for important files used
filecheck ()
{
	filecheck=$(LANG=us ls -lh ${diskfile} 2>&1)
	writelog "Filecheck:\n${filecheck}\n"
	noimage=$(echo ${filecheck} | grep -i "no such file or directory" | wc -l)
	rightsfile=${diskfile}
	
	# check if link
	if [ -L "${diskfile}" ]; then
		# take link target
		rightsfile=$(ls -lh ${diskfile} 2>&1 | awk -F '-> *' '{print $2}')
		rightsfile=${vmdir}/${rightsfile}
		filecheck=$(LANG=us ls -lh ${rightsfile} 2>&1)
	fi
	
	# does file exist
	if [ "${noimage}" -ge "1" ]; then
		writelog "Virtual Machine Image Problem:\c "
		writelog "\tThe image you've specified doesn't exist."
		writelog "Filecheck says:\c "
		writelog "\t\t${diskfile}:\n\t\t\tNo such file or directory"
		writelog "Hint:\c "
		writelog "\t\t\tCompare spelling of the image with your options.\n"
		exit 1
	fi
	
	# readable by calling user
	if ! [ -r "${diskfile}" >/dev/null 2>&1 \
		-o -r "${diskfile}" >/dev/null 2>&1 ]; then
		writelog "Vmware Image Problem:\c "
		writelog "\tThe image you've specified has wrong rights."
		writelog "Filecheck says:\t\t$(echo ${filecheck} \
		| awk '{print $1" "$3" "$4}') ${rightsfile}"
		writelog "Hint:\t\t\tChange rights with: chmod a+r ${rightsfile}\n"
		exit 1
	fi
	
	# writable (for persistent-mode)?
	if ! [ -w "${diskfile}" >/dev/null 2>&1 \
	-o -w "${diskfile}" >/dev/null 2>&1 ] \
	&& [ "${np}" = "independent-persistent" ]; then
		writelog "Vmware Image Problem:\c "
		writelog "\tThe image you have specified has wrong rights."
		writelog "Filecheck says:\t\t$(echo ${filecheck} \
		| awk '{print $1" "$3" "$4}') ${rightsfile}"
		writelog "Hint:\t\t\tUse nonpersistent-mode or change rights to rw\n"
		exit 1
	fi
}

################################################################################
### Get XML file and dir
################################################################################

## Added for persistent support.
diskmode='nonpersistent'
if [[ "$(grep --extended-regexp \
      '< *short_description *param=".+ --persistent--"' "$1")" ]]; then
    diskmode='persistent'
    imageFilePath="$(grep -io '<image_path param=.*"' "$1" | sed -e "s/&.*;/; /g" | awk -F '"' '{ print $2 }')"
    [ -z "$imageFilePath" ] && imageFilePath="$(grep -io '<image_name param=.*"' "$1" | sed -e "s/&.*;/; /g" | awk -F '"' '{ print $2 }')"
    originalXMLFilePath="$(grep -io '<original_xml_file_path param=.*"' "$1" \
        | sed -e "s/&.*;/; /g" | awk -F '"' '{ print $2 }')"
    originalImageFileName="$(grep -io '<image_name param=.*"' \
        "$originalXMLFilePath" | sed -e "s/&.*;/; /g" | awk -F '"' \
        '{ print $2 }')"
    originalVMDKFilePath="$(dirname \
        "$originalXMLFilePath")/${originalImageFileName}"
    # Added to workaround path prefix coming from temporary generated xml file
    # by vmchooser.
    if [[ "$(grep --extended-regexp '^/tmp/tmp\.[^\/]+/' <<< \
          "$imageFilePath")" ]]; then
        imageFilePath=$(sed -r 's/^\/?tmp\/[^\/]+\///g' \
            <<< "$imageFilePath")
        sed -ir \
            "s/(<image_name param=\")[^\"]*(\")/\\1$(sed -e \
            's/\\/\\\\/g' -e 's/\//\\\//g' -e \
            's/&/\\\&/g' <<< "$imageFilePath")\\2/g" "$1"
    fi
    # Create linked clone if not exists.
    if [ ! -f "$imageFilePath" ]; then
        mkdir -p "$(dirname "$imageFilePath")" && \
        bash "$(dirname "$0")/vmchooser-clc" "$originalXMLFilePath" \
            "$imageFilePath" --debug --verbose &>"${LOGFILE}"
    fi
fi
##

# absolute or relative path?
xmlfile=$1
if ls "${xmlfile}" 2>/dev/null | grep '/' >/dev/null 2>&1; then
	xmlpath=$(dirname "${xmlfile}")
	xmlfile=$(basename "${xmlfile}")
else
	xmlpath=${vmchooser_xmlpath}
fi
# full path
xmlfile="${xmlpath}/${xmlfile%.xml}.xml"

DO_PROFILE="$(grep -c -E -i '<\s*profile\s*param="?(true|yes)"?' "$xmlfile")"

################################################################################
### Sanity checks
################################################################################

# test if the xml file is valid
if ! [ -r "${xmlfile}" ]; then
	writelog "${xmlfile} not a readable XML file!"
	slxlog "virt-nonreadable-xml" "XML file not readable: $xmlfile"
	exit 1
fi

# test if XML file
if ! grep -q '<?xml' "${xmlfile}"; then
	writelog "Submitted configuration file ${xmlfile} seems to have wrong XML format"
	slxlog "virt-invalid-xml" "Malformed XML file: $xmlfile" "$xmlfile"
	exit 1
fi

# check for running in graphical environment otherwise no much use here
if [ -z "$DISPLAY" ]; then
	echo -e "\n\tStart only within a graphical desktop!\n"
	exit 1
fi

################################################################################
###  Logo for console
################################################################################

cat <<EOL
                                             __        __   
                .----.--.--.-----.___.--.--.|__|.----.|  |_ 
                |   _|  |  |     |___|  |  ||  ||   _||   _|
                |__| |_____|__|__|    \___/ |__||__|  |____|
          OpenSLX virtual machine environment preparation script ...

EOL

################################################################################
### Read needed variables from XML file
################################################################################

writelog "Starting configuration..."
writelog "\tLogfile:\t\t${LOGFILE}"
writelog "\t/tmp info:\t\t$(df -h | grep " /tmp$" | awk '{print $2}') \c"
writelog "$(grep "/tmp " /proc/mounts | awk '{print $1" "$2" "$3" "$4}')"
writelog "\tVM XML dir:\t\t$(dirname "${xmlfile}")"
writelog "\tXML file:\t\t${xmlfile}"
writelog "Enable 3D:\t\t${enable3d}"
writelog "VM config:"

# Name of the virt image
imgname=$(grep -io '<image_path param=.*"' "${xmlfile}" | sed -e "s/&.*;/; /g" | awk -F '"' '{ print $2 }')
imgrelpath=$(grep -io '<image_name param=.*"' "${xmlfile}" | sed -e "s/&.*;/; /g" | awk -F '"' '{ print $2 }')
[ -z "$imgname" ] && imgname="${imgrelpath}"

## Added for persistent support.
if [[ "$userBranchFilePath" ]]; then
	imgname="$userBranchFilePath"
fi
##

# Imagename w/ full path
if echo "${imgname}" | grep -q '^/'; then
	imgpath="$(dirname "${imgname}")"
	imgname="$(basename "${imgname}")"
	vmpath="${imgpath}/${imgname}"
	# If old vmchooser binary stuff
	# We do not need folder name as it is already included by vmchooser
elif echo "${xmlfile}" | grep -q '^/tmp/'; then
	vmpath="$imgname"
	imgname="$(basename "${imgname}")"
## Added for persistent support.
elif [[ "$userBranchFilePath" ]]; then
	vmpath="$userBranchFilePath"
##
	# Else use same path as xml
else
	imgpath="${xmlpath}"
	vmpath="${imgpath}/${imgname}"
fi


# Name of the virt machine, sed because of Windows formatting
vm_name=$(grep -o 'short_description param=.*"' "${xmlfile}" \
| sed -e "s/&.*;/; /g" | awk -F '"' '{print $2}')
# If ${vm_name} not defined use ${xmlfile}
vm_name="${vm_name:-${xmlfile%.xml}}"

# Define vm_shortname since vm_name can be very long
vm_shortname="$(basename "${xmlfile%.xml}" | sed -e "s, ,-,g")"

# vm_name = displayname, define for old scripts
displayname="${vm_name}"

# image is for the following virtual machine
xmlvirt=$(grep -o 'virtualmachine param=.*"' "${xmlfile}" \
| sed -e "s/&.*;/; /g" | awk -F '"' '{print $2}')

# choose the proper virtualization/emulator plugin
[ "x${xmlvirt}" != "x" -a "x${xmlvirt}" != "xqemukvm" -a "x${xmlvirt}" != "xvirtualbox" -a "x${xmlvirt}" != "xvmware" ] && xmlvirt="emufe"

# make a guess from the filename extension if ${xmlvirt} is empty
# (not set within the XML file)
# TODO: implement possibility to submit own configuration files
if [ -z "${xmlvirt}" ] && [ -n "${additional_config}" ]; then
	writelog "No virtual machine parameter defined in ${xmlfile}"
	writelog "Trying to guess VM...\c"
	case "$(cat ${additional_config} | tr \"[A-Z]\" \"[a-z]\")" in
		*config.version*|*virtualhw.version*|*independent-nonpersistent*|*vmdk*)
			xmlvirt="vmware"
		;;
		*innotek*|*virtualbox*)
			xmlvirt="virtualbox"
		;;
		*qemu*|*kvm*)
			xmlvirt="qemukvm"
		;;
		*)
			xmlvirt="none"
		;;
	esac
	elif [ -z "${xmlvirt}" ]; then
	case "$(echo ${imgname##*.} | tr \"[A-Z]\" \"[a-z]\")" in
		vmdk)
			xmlvirt="vmware"
		;;
		vbox|vdi)
			xmlvirt="virtualbox"
		;;
		qcow*)
			xmlvirt="qemukvm"
		;;
		*)
			xmlvirt="emufe"
		;;
	esac
	writelog "result:\t${xmlvirt}"
fi

# Definition of the client system
vmostype=$(grep -io '<os param=.*"' "${xmlfile}" | awk -F '"' '{ print $2 }' | tr "[A-Z]" "[a-z]")

# Definition of the networking the client system is connected to
network_kind=$(grep -io '<network param=.*"' "${xmlfile}" | awk -F '"' '{ print $2 }' | tr "[A-Z]" "[a-z]")
network_card=$(grep -io '<netcard param=.*"' "${xmlfile}" | awk -F '"' '{ print $2 }'| tr "[A-Z]" "[a-z]")
override_hddtype=$(grep -io '<hddtype param=.*"' "${xmlfile}" | awk -F '"' '{ print $2 }'| tr "[A-Z]" "[a-z]")

# Set redirects to 0, see vmgrid if you want to define some
redirects=0

# Serial/parallel ports defined (e.g. "ttyS0" or "autodetect")
serial=$(grep -io '<serialport param=.*"' "${xmlfile}" | awk -F '"' '{ print $2 }')
parallel=$(grep -io '<parport param=.*"' "${xmlfile}" | awk -F '"' '{ print $2 }')

writelog "\tVirtualization:\t\t$xmlvirt"
writelog "\tVM name:\t\t$vm_name"
writelog "\tVM short name:\t\t$vm_shortname"

###############################################################################
### Declaration of default variables
###############################################################################

# take last two digits of current pid...
VM_ID=$(expr substr $$ $(expr ${#$} - 1) 2)

# Make sure cpu_cores is not empty
cpu_cores=${cpu_cores:-"1"}

# Amount of memory for the VM. Be generous if diff is written to HDD
if mount | grep -q '^/dev/sd.*on.*/tmp'; then
	reserve=20
	min=768
	max=1536
else
	reserve=65
	min=768
	max=8192
fi

# Calculate absulute amount of RAM that should stay available to the host
reserve="$[ ( $totalmem * $reserve ) / 100 ]"
# Respect some upper and lower bounds for the host amount
[ "$reserve" -lt "$min" ] && reserve="$min"
[ "$reserve" -gt "$max" ] && reserve="$max"

# Get a result which can be divided by 4
mem="$[ ( ( $totalmem - $reserve ) / 4 ) * 4 ]"
if [ -n "$mainvirtmem" ]; then
	forcemem="$[ "$mainvirtmem" / 4 * 4 ]"
	mem="$forcemem"
fi
hostmem="$[ $totalmem - $mem ]"

# TODO: We should only generate the suffix here (last 3 octets) as the first 3 are
# dependant on the virtualizer/emulator. Check if any run-virt.include still relies on
# $macguestpart/$macaddr. If so, fix it to use its specific first 3 bytes
# and append $macaddrssuffix
macguestpart="00:50:56:${VM_ID}"
machostpart=$(echo "${hostmacaddr}" | awk -F ":" '{print $(NF-1)":"$NF}')
macaddr=$(echo "${macguestpart}:${machostpart}" | tr "[a-z]" "[A-Z]")
macaddrsuffix=$(echo "${VM_ID}:${machostpart}" | tr "[a-z]" "[A-Z]")

if ! echo "$macaddrsuffix" | grep -q -E '^[0-9A-F]{2}:[0-9A-F]{2}:[0-9A-F]{2}$'; then
	slxlog "virt-mac" "Could not properly generate mac address suffix (got $macaddrsuffix)"
fi

# Virtual fd/cd/dvd and drive devices, floppy b: for configuration
# if $floppy_0 from virtualization.conf set then fdtest="TRUE"
fdtest=${floppy_0:+"TRUE"}
# if $fdtest not set floppy0="FALSE", else "TRUE"
floppy0=${fdtest:-"FALSE"}
floppy1="TRUE"
floppy1name="$VMCHOOSER_DIR/data/loopimg/fd.img"
# if $cdrom_0 from virtualization.conf set then cdtest="TRUE"
cdtest=${cdrom_0:+"TRUE"}
# if $cdtest not set cdrom0="FALSE", else "TRUE"
cdrom0=${cdtest:-"FALSE"}
# if $cdrom_1 from virtualization.conf set then cdtest="TRUE"
cdtest=${cdrom_1:+"TRUE"}
# if $cdtest not set cdrom1="FALSE", else "TRUE"
cdrom1=${cdtest:-"FALSE"}
# IDE is expected default, test for the virtual disk image type should
# be done while creating the runscripts ...
# TODO enable SCSI support instead of just disabling it.
ide="TRUE"
scsi="FALSE"
hddrv="ide"
audio="true"
remotedesktopport="590${VM_ID}"


# Enable 3D
enable3d=$(grep -i -o "<enable3d param=.*" "${xmlfile}" | awk -F '"' '{print $2}' | rv_clean_string)

# Add rw share
sharepath="${HOME}/PERSISTENT"
sharename="home"

# Set hostname: using original hostname and adding string
hostname="virt-$(hostname)"

writelog "\tVM Hostname:\t\t$hostname"

################################################################################
### Setup the rest of the environment and run the configured vm
################################################################################
# 8086:1e20
if lspci -n | grep -E -i '8086:1e20( |$)'; then
	VOL="100%" # bwPC 4: Speaker too quiet :-(
else
	VOL="85%"
fi
if true; then
	# detecting which card is to be used
	echo "Detecting which sound card to use ..."
	PROC="/proc/asound/cards"	
	if [ ! -r "$PROC" ]; then
		echo "'${PROC}' not found or not readable."
		SOUND_CARD_INDEX=0
	else
		# Try to filter HDMI cards first
		SOUND_CARD_INDEX=$(grep -v -i 'HDMI' "${PROC}" | grep -E -o '^[[:space:]]*[0-9]+[[:space:]]+' | head -n 1)
		# If empty, try again with all
		[ -z "${SOUND_CARD_INDEX}" ] && SOUND_CARD_INDEX=$(cat "${PROC}" | grep -E -o '^[[:space:]]*[0-9]+[[:space:]]+' | head -n 1)
		
		if [ -z "${SOUND_CARD_INDEX}" ]; then
			echo "No sound card found."
			SOUND_CARD_INDEX=0
		fi
	fi

	# Adjust sound volume (playback)... Random mixer names we have encountered during testing
	echo "Setting up volume..."
	amixer -q -c "$SOUND_CARD_INDEX" sset 'Master' "$VOL" unmute
	amixer -q -c "$SOUND_CARD_INDEX" sset 'PCM' "$VOL" unmute
	amixer -q -c "$SOUND_CARD_INDEX" sset 'CD' "$VOL" unmute
	amixer -q -c "$SOUND_CARD_INDEX" sset 'Headphone' "$VOL" unmute
	amixer -q -c "$SOUND_CARD_INDEX" sset 'Front' "$VOL" unmute
	amixer -q -c "$SOUND_CARD_INDEX" sset 'Speaker' "$VOL" unmute
	# Recording. It seems that (most) devices need the volume set to 0, so you
	# don't hear your own mic input, but should be unmuted. Also on some cards,
	# you need to set the cap option on the mic you want to use, while other cards
	# will just ignore that option.
	# Plus, most cards have a Capture mixer, which needs to be set to cap too, and
	# have its volume turned up. (There'll probably be some cards that need yet
	# another setup, but this works for now on 4 tested cards)
	amixer -q -c "$SOUND_CARD_INDEX" sset 'Rear Mic Boost' "50%" cap unmute
	amixer -q -c "$SOUND_CARD_INDEX" sset 'Rear Mic' "0%" cap unmute
	amixer -q -c "$SOUND_CARD_INDEX" sset 'Front Mic Boost' "50%" cap unmute
	amixer -q -c "$SOUND_CARD_INDEX" sset 'Front Mic' "0%" cap unmute
	amixer -q -c "$SOUND_CARD_INDEX" sset 'Mic Boost' "50%" cap unmute
	amixer -q -c "$SOUND_CARD_INDEX" sset 'Mic' "0%" cap unmute
	amixer -q -c "$SOUND_CARD_INDEX" sset 'Capture' "100%" cap unmute
	amixer -q -c "$SOUND_CARD_INDEX" sset 'Input Source' 'Front Mic' # Let's hope nobody uses rear mic...
	# fix random static noise when starting vmplayer when module snd_pcsp (not pcspkr) is loaded
	amixer -q -c pcsp sset Master "0%" mute
	echo "Done setting up volume."
fi >> "${LOGFILE}" 2>&1

# Start printer daemon
QUEUE="STANDARD" # This has to match the queue you configured in your VM
USER="$(whoami)"
SPOOLDIR=
### Disabled: 100megs is not enough, some jobs are HUGE, try to use temp which should be on disk
## Try using user's tmpfs home first, as it gets wiped on logout
#if [ -n "${HOME}" ] && [ -w "${HOME}" ]; then
#	SPOOLDIR="${HOME}/.spool"
#	mkdir -p "${SPOOLDIR}/${QUEUE}"
#fi
# If failed, try to fall back to /tmp
if [ -z "${SPOOLDIR}" ] || [ ! -w "${SPOOLDIR}/${QUEUE}" ]; then
	SPOOLDIR="/tmp/printergui-${USER}-$$-${RANDOM}"
	rm -rf -- "${SPOOLDIR}"
	if ! mkdir -p "${SPOOLDIR}/${QUEUE}"; then
		slxlog "virt-spooldir" "Could not create spool directory ($SPOOLDIR) for $USER - printing will not work!"
		# TODO: Warn user
	fi
	chmod 0700 "${SPOOLDIR}/${QUEUE}"
fi

# Start the lpdaemon listening on the given port
# TODO: externalize with something like runtvirt.d (other parts might benefit from that too)
tcpsvd -E 192.168.101.1 5515 \
	lpd "$SPOOLDIR" \
	ash -c "/opt/openslx/cups/printergui '${USER}' \"${SPOOLDIR}/${QUEUE}/\$DATAFILE\"" &

# PID to kill the process
PID_LPD="$!"

# Copy guest configuration (with added information) config.xml to be accessed
# via virtual floppy
cp "$xmlfile" "$VMCHOOSER_DIR/fd-loop/config.xml"
# Add another file with resolution information
xrandr | grep -o -E 'connected\s*(primary)?\s*[0-9]+x[0-9]+\+0\+0' | grep -o -E '[0-9]+x[0-9]+' | head -n 1 > "$VMCHOOSER_DIR/fd-loop/hostres.txt"
# Add our magic openslx binary that sets the correct guest resolution
cp "$VMCHOOSER_DIR/data/openslx.exe" "$VMCHOOSER_DIR/fd-loop/"

# Try to use dnbd3 to access the image
unset vm_diskfile
unset vm_revision
unset dnbd3
unset dnbd3error
if [ -n "$SLX_DNBD3_SERVERS" -o -n "$SLX_DNBD3_PRIO_SERVERS" ] && [ "x$SLX_VM_DNBD3" = "xyes" ]; then
	if [ -e "/dev/dnbd0" -a -e "/var/run/dnbd3.socket" ]; then
		# Shuffle server list
		[ -n "$SLX_DNBD3_SERVERS" ] && TMP_SERVERS=$(for SRV in $SLX_DNBD3_SERVERS; do echo "$RANDOM $SRV"; done | sort -u | sed -r 's/^[0-9]+ //')
		for SRV in $SLX_DNBD3_PRIO_SERVERS $TMP_SERVERS; do
			dnbd3=$(dnbd3-client -h "$SRV" -i "${imgrelpath}" -r 0)
			RET=$?
			if [ "$RET" = "0" ]; then
				vm_revision=$(cat "/sys/block/${dnbd3#/dev/}/net/rid")
				writelog "DNBD3: $vm_diskfile on $dnbd3 with rid $vm_revision"
				vm_diskfile="$dnbd3"
				vmpath="$vm_diskfile"
				break
			fi
			dnbd3error="$dnbd3error ($RET/$dnbd3)"
			usleep 200000
		done
		if [ -z "$vm_diskfile" ]; then
			slxlog "virt-dnbd3" "No dnbd3 server for ${imgrelpath} found ($SLX_DNBD3_PRIO_SERVERS $TMP_SERVERS $dnbd3error), trying NFS/CIFS..."
			writelog "No working dnbd3 server found :-("
		fi
	else
		writelog "Won't use dnbd3 as it's not loaded, or the daemon is not running..."
	fi
else
	writelog "Won't use dnbd3 as no servers are given in config"
fi

# $vm_diskfile will be empty if dnbd3 is not used or failed. Let's try to fall back to NFS/CIFS via file system
if [ -z "$vm_diskfile" ]; then
	new_vmpath=$(ls "${vmpath}.r"* | grep -E -o '\.r[0-9]+$' | grep -o -E '[0-9]+' | sort -n | tail -1)
	[ -n "$new_vmpath" ] && vmpath="${vmpath}.r${new_vmpath}"
	vm_diskfile="$vmpath"
fi

# Check if virtual machine container file exists
if ! [ -e "${vmpath}" ]; then
	slxlog "virt-image-missing" "VM image $vmpath not found!"
	writelog "Virtual machine image ${vmpath} not found!"
	cleanexit 1
fi

writelog "Used diskfile: $vm_diskfile"

# Get all virtual machine specific stuff from the respective include file
if [ ! -e "$VMCHOOSER_DIR/$xmlvirt/run-virt.include" ] ; then
	# TODO: Tell user
	slxlog "virt-plugin-missing" "Could not find run-virt.include for $xmlvirt ($VMCHOOSER_DIR/$xmlvirt/run-virt.include)"
	writelog "Failed because of missing ${xmlvirt} plugin."
	cleanexit 1
fi

self="${xmlvirt}"
if ! . "$VMCHOOSER_DIR/$xmlvirt/run-virt.include"; then
	slxlog "virt-plugin-error" "run-virt.include for $xmlvirt could not be sourced (contains syntax errors?)" "$xmlvirt"
	writelog "Erroneous run-virt.include for $xmlvirt"
fi

# start a windowmanager for easier handling
# (expect problems w/ windows opening in background w/ vmware without wm)
for dm in openbox kwin xfwm4 metacity blackbox twm fvwm2 ; do
	if which $dm >/dev/null 2>&1 ; then
		if [ "$dm" = "fvwm2" ] ; then
			echo "EdgeScroll 0 0" > ${redodir}/fvwm
			fvwm2 -f ${redodir}/fvwm >/dev/null 2>&1 &
		else
			$dm >/dev/null 2>&1 &
		fi
		break
	fi
done

# Start poolvideoswitch if we find the autostarter file
#if [ -e /etc/xdg/autostart/pvsgui.desktop ]; then
#  /usr/local/bin/pvsgui -p 2 -b >/dev/null 2>&1 &
#fi

if [[ "$DO_PROFILE" -ge "1" ]]; then
	wget "http://132.230.8.113/profile/do.php?action=start" &
fi

# Check if tcpsvd is running. Do this down here so we do not check immediately after trying to spawn it,
# as this could result in success even if it's not really working
if ! kill -0 "$PID_LPD"; then
	slxlog "virt-lpd" "Could not start tcpsvd/lpd for virtual machine session"
fi

# Configure and start samba service to provide user's home directory
#if [ -f /usr/sbin/smbd ] ; then
#	sudo /opt/openslx/bin/sed -i /opt/openslx/vmchooser/smb.conf -e "s,USER,$USER,"
#	sudo /usr/sbin/nmbd -s /opt/openslx/vmchooser/config/smb.conf
#	sudo /usr/sbin/smbd -s /opt/openslx/vmchooser/config/smb.conf
#fi

# This will start the VM
writelog "VM command: eval ${VIRTCMD} ${VIRTCMDOPTS}"
eval ${VIRTCMD} ${VIRTCMDOPTS}
#
writelog "Bye."

# Postrun for commands after virtualization finishes
if [ -n "${POSTRUN}" ]; then
	eval ${POSTRUN}  >/dev/null 2>&1
fi


cleanexit 0