#!/bin/sh
#
# Copyright (C) 2006-2007 Sun Microsystems, Inc.
#
# This file is part of VirtualBox Open Source Edition (OSE), as
# available from http://www.virtualbox.org. This file is free software;
# you can redistribute it and/or modify it under the terms of the GNU
# General Public License as published by the Free Software Foundation,
# in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
# distribution. VirtualBox OSE is distributed in the hope that it will
# be useful, but WITHOUT ANY WARRANTY of any kind.
#

LOG="/var/log/vbox-install.log"

# for debconf
. /usr/share/debconf/confmodule
db_version 2.0

# remove old cruft
if [ -f /etc/init.d/vboxdrv.sh ]; then
  echo "Found old version of /etc/init.d/vboxdrv.sh, removing."
  rm /etc/init.d/vboxdrv.sh
  update-rc.d vboxdrv.sh remove >/dev/null
fi
if [ -f /etc/init.d/virtualbox ]; then
  echo "Found old version of /etc/init.d/virtualbox, removing."
  rm /etc/init.d/virtualbox
  update-rc.d virtualbox remove >/dev/null
fi
if [ -f /etc/vbox/vbox.cfg ]; then
  echo "Found old version of /etc/vbox/vbox.cfg, removing."
  rm /etc/vbox/vbox.cfg
fi

# install udev rule
if [ -d /etc/udev/rules.d ]; then
  udev_out=`udevinfo -V 2> /dev/null`
  udev_ver=`expr "$udev_out" : '[^0-9]*\([0-9]*\)'`
  if [ "$udev_ver" = "" -o "$udev_ver" -lt 55 ]; then
    echo 'KERNEL="vboxdrv", NAME="vboxdrv", OWNER="root", GROUP="root", MODE="0600"' \
      > /etc/udev/rules.d/60-vboxdrv.rules
  else
    echo 'KERNEL=="vboxdrv", NAME="vboxdrv", OWNER="root", GROUP="root", MODE="0600"' \
      > /etc/udev/rules.d/60-vboxdrv.rules
  fi
fi

# create users groups
db_input high virtualbox/group-vboxusers || true
db_go || true
addgroup --system vboxusers

if [ ! -f /lib/modules/`uname -r`/misc/vboxdrv.ko ]; then
  db_get virtualbox/module-compilation-allowed
  if [ "$RET" = "false" ]; then
    cat << EOF
Unable to find a precompiled module for the current kernel
though module compilation denied by debconf setting.
EOF
  else
    db_input critical virtualbox/module-compilation-allowed || true
    db_go || true
    db_get virtualbox/module-compilation-allowed
    if [ "$RET" = "true" ]; then
      # Compile module. Don't show a message box here if everything works well.
      cat << EOF
Messages emitted during module compilation will be logged to $LOG.
EOF
      rm -f /etc/vbox/module_not_compiled
      echo "** Compiling vboxdrv" > /var/log/vbox-install.log
      if ! /usr/share/virtualbox/src/vboxdrv/build_in_tmp \
          --save-module-symvers /tmp/vboxdrv-Module.symvers \
          --no-print-directory KBUILD_VERBOSE= \
          install >> /var/log/vbox-install.log 2>&1; then
        db_fset virtualbox/module-compilation-failed seen false
        db_input critical virtualbox/module-compilation-failed || true
        db_go || true
        touch /etc/vbox/module_not_compiled
        # don't abort the installation!
      else
        echo "** Compiling vboxnetflt" >> /var/log/vbox-install.log
        if ! /usr/share/virtualbox/src/vboxnetflt/build_in_tmp \
            --use-module-symvers /tmp/vboxdrv-Module.symvers \
            --no-print-directory KBUILD_VERBOSE= \
            install >> /var/log/vbox-install.log 2>&1; then
          db_fset virtualbox/module-compilation-failed seen false
          db_input critical virtualbox/module-compilation-failed || true
          db_go || true
          touch /etc/vbox/module_not_compiled
          # don't abort the installation!
        fi
      fi
      if [ ! -f /etc/vbox/module_not_compiled ]; then
        # success
        cat << EOF
Success!
EOF
      fi
    fi
  fi
fi

# There might be an old module active (e.g. manually loaded)
if lsmod | grep -q "vboxdrv[^_-]"; then
  /etc/init.d/vboxdrv stop || true
fi

# The starters need to be Suid root. They drop the privileges before starting
# the real frontend.
if ! dpkg-statoverride --list /usr/lib/virtualbox/VirtualBox > /dev/null 2>&1; then
  chmod 4711 /usr/lib/virtualbox/VirtualBox
fi
if ! dpkg-statoverride --list /usr/lib/virtualbox/VBoxHeadless > /dev/null 2>&1; then
  chmod 4711 /usr/lib/virtualbox/VBoxHeadless
fi
if ! dpkg-statoverride --list /usr/lib/virtualbox/VBoxSDL > /dev/null 2>&1; then
  chmod 4711 /usr/lib/virtualbox/VBoxSDL
fi

#DEBHELPER#

exit 0