#!/bin/sh
#
# Description:  Kernel of a generic runlevel script file for use with
#               Diskless X Stations (v4.0) - script prepares vmware
#               environment. Start and stop functionality is added within
#		initial ramdisk
#
# Author(s):    Michael Janczyk <mj0@uni-freiburg.de>, 04-04-2006
#               Dirk von Suchodoletz <dirk@goe.net>, 25-03-2006
# Copyright:    (c) 2003, 2006 - RZ Universitaet Freiburg
#
# Version:      0.1b
################################################################################



### VERBOSE? ###################################################################
# set verbose mode (set -x(v))
#set -xv



### CONFIGURATION ##############################################################
# read configuration information
. /etc/machine-setup



### VARIABLES SECTION ##########################################################
# Declaration of default variables
vmdir="/var/lib/vmware"
path="/var/X11R6/bin"
sessions=
session_name=



### FUNCTIONS SECTION ##########################################################
# loop file for exchanging information between linux and vmware
mount_loop () {
  modprobe loop >/dev/null 2>&1
  mkdir -p /media/loop0
  cp ${vmdir}/templ/fd0.img /tmp/${clientip}-fd0.img
  chmod a+rw /tmp/${clientip}-fd0.img
  mount -n -t msdos -o loop,umask=000 /tmp/${clientip}-fd0.img \
    /media/loop0
}


# device creation - the module does not trigger udev properly
vmnet () {
  for i in 0 1 2 3 4 5 6 7 8 9; do
    [ -c /dev/vmnet${i} ] || mknod /dev/vmnet${i} c 119 ${i};
  done
  chmod 0700 /dev/vmnet*
}


# special start script for vmware with predefined image
Xpath () {
  if `touch /usr/X11R6/bin/touch >/dev/null 2>&1`; then
    rm /usr/X11R6/bin/touch >/dev/null 2>&1
    path="/usr/X11R6/bin"
    cp ${vmdir}/templ/runvmware \
       /usr/X11R6/bin
    chmod 755 /usr/X11R6/bin/runvmware >/dev/null 2>&1
  else
    path="/var/X11R6/bin"
    test -d /var/X11R6/bin || mkdir -p /var/X11R6/bin
    cp ${vmdir}/templ/runvmware \
       /var/X11R6/bin
    chmod 755 /var1R6/bin/runvmware >/dev/null 2>&1
  fi
}


# blabla sessiondinens
desktop_session () {
  echo -e "#!/bin/sh\n#\n# file generated by\n#\t${0}:\n#\t${date}\n
  os=\$(echo \$0 | sed -e \"s,-, ,;s,.*/,,\" | awk '{print \$1}')
  spec=\$(echo \$0 | sed -e \"s,-, ,;s,.*/,,\" | awk '{print \$2}')\n
  options=\"-o \${os} \${spec:+\"-s \${spec}\"}\"\n

  xterm -bg black -fg white -geometry 170x30+0-0 +sb \
    -e \"${path}/runvmware \${options} ${debug}\"\n" \
  > ${path}/desktop-session
  chmod a+x ${path}/desktop-session
}


# copy nach blabla
vmsession2desktop_session () {
  sessions=$(ls ${vmdir}/vmsessions/*.desktop)
  if [ -n "${sessions}" ]; then
    for i in ${vmdir}/vmsessions/*.desktop; do
      session_name=$(cat ${i} | grep -iw "exec" \
        | awk -F "=" '{print $2}')
      cp ${path}/desktop-session ${path}/${session_name}
      chmod 755 ${path}/${session_name} >/dev/null 2>&1
    done
  fi
}



### START SCRIPT ###############################################################

# create vmdir
#mkdir -p /var/lib/vmware 2>&1

# mount von zeugs (wohl besser in der InitRD, da sonst Sessions nicht 
# rechtzeitig fuer gdm/kdm verfuegbar)
#mount -t nfs -o ro,nolock,intr,nodev,soft,timeo=2,nosuid ${imgsrv} ${vmdir}

# device creation - the module does not trigger udev properly
vmnet

# special start script for vmware with predefined image
Xpath

# loop file for exchanging information between linux and vmware guest
mount_loop

# blabla sessiondinens
desktop_session

# copy nach blabla
vmsession2desktop_session



#exit 0