Moved common data files of vmchooser and vmchooser2 to new module called run-virt

1 files changed, 656 insertions, 0 deletions

diff --git a/remote/modules/run-virt/data/opt/openslx/scripts/vmchooser-run_virt b/remote/modules/run-virt/data/opt/openslx/scripts/vmchooser-run_virt
new file mode 100755
index 00000000..07f40e0f
--- /dev/null
+++ b/remote/modules/run-virt/data/opt/openslx/scripts/vmchooser-run_virt
@@ -0,0 +1,656 @@
+#!/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}"
+imgrelpath=${imgrelpath#/mnt/vmstore/}
+
+## 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 $2}' | rv_clean_string)
+
+# Add rw share for home dir
+homesharepath="${HOME}/PERSISTENT"
+homesharename="home"
+
+# Add common share
+commonsharepath="${HOME}/SHARE"
+commonsharename="share"
+
+# Set hostname: using original hostname and adding string
+hostname="virt-$(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
+		SOUND_CARD_COUNT=1
+	else
+		# Try to filter HDMI cards first
+		SOUND_CARD_INDEX=$(grep -v -i 'HDMI' "${PROC}" | grep -E -o '^[[:space:]]{0,2}[0-9]+[[:space:]]+' | head -n 1)
+		# If empty, try again with all
+		[ -z "${SOUND_CARD_INDEX}" ] && SOUND_CARD_INDEX=$(cat "${PROC}" | grep -E -o '^[[:space:]]{0,2}[0-9]+[[:space:]]+' | head -n 1)
+		if [ -z "${SOUND_CARD_INDEX}" ]; then
+			echo "No sound card found."
+			SOUND_CARD_INDEX=0
+		fi
+		SOUND_CARD_COUNT=$(grep -E '^[[:space:]]{0,2}[0-9]+[[:space:]]+' "${PROC}" | wc -l)
+	fi
+
+	SOUND_CARD_INDEX="$(grep -E -o '[0-9]+' <<<$SOUND_CARD_INDEX)"
+	echo "Detected sound card index is: $SOUND_CARD_INDEX"
+	echo "Sound card count: $SOUND_CARD_COUNT"
+
+	# Adjust sound volume (playback)... Random mixer names we have encountered during testing
+	echo "Setting up volume..."
+	amixer -q -c "$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" "$VMCHOOSER_DIR/fd-loop/"
+cp "$VMCHOOSER_DIR/data/SHARELWS.BAT" "$VMCHOOSER_DIR/fd-loop/"
+rm "$VMCHOOSER_DIR/fd-loop/SHARELW.CFG"
+for SHARE in $(grep -o -E '^SLX_SHARE_.*_PATH' /opt/openslx/config); do
+	eval "echo -n \$${SHARE} | /opt/openslx/bin/tr '/' '\' " >> "$VMCHOOSER_DIR/fd-loop/SHARELW.CFG"
+	eval echo -n " \$${SHARE%PATH}AUTH_PASS /user:\$${SHARE%PATH}AUTH_USER" >> "$VMCHOOSER_DIR/fd-loop/SHARELW.CFG"
+	echo -e '\r\n' >> "$VMCHOOSER_DIR/fd-loop/SHARELW.CFG"
+done
+
+
+# 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
+
+