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# Copyright (c) 2003..2006 - RZ Uni Freiburg
# Copyright (c) 2006..2008 - OpenSLX GmbH
#
# This program/file 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 feedback to feedback@openslx.org
#
# General information about OpenSLX can be found under http://openslx.org
#
# Configuration script for general Ubuntu to configure OpenSLX linux
# stateless clients (executed within initial ramdisk after genconfig) 

# distro specific configuration variables used in the setup functions
# (formerly done via config-*, these variables are disputable ...)
# D_ETCEXCL - list of files, wildcards to be excluded from /etc when using 
# bind mounts
# D_DIRINBINDMNT - lists of directories to be created in bind mounted rw part
# of the client filesystem
# D_RODIRSINRW - ReadOnly Directories in RW part of filesystem to save on 
# TempFS usage
# D_DIRINDXS - directories in client filesystem which should be present anyhow
#D_ETCEXCL="etc/gconf/*\n*.old\n*-\netc/autoinstall\nlogrotate*\nbootloader\n\
#*~\npptp.d\nisdn\nyouservers\nhardware/hwcfg*\n\
#X11/xdm/pixmaps\ndhclient.script"
D_BINDMPTS="tmp root home media"
D_DIRINBINDMNT="/var/run /var/log /var/tmp /var/lib/gdm"
D_RODIRSINRW="/etc/X11/xkb /var/lib/gconf /var/lib/dpkg /var/lib/aspell \
/var/lib/pango /var/lib/defoma /var/cache/fontconfig"
#D_RWDIRSINRO="/var/lib/gdm"
D_DIRINDXS="/var/X11R6/compose-cache /var/run/sysconfig/tmp /var/adm \
/var/lib/nobody /var/lib/pam_devperm /var/lib/bluetooth /var/lib/texmf \
/var/lib/nfs/sm /var/lib/misc /var/lib/acpi /var/spool/cron /var/lib/alsa \
/var/lock/subsys/sysconfig"

# empty functions are defined at the beginning of /etc/functions

# distro specific stuff to initialize
preinit () {
  # load unix module to provide sockets (is compiled into kernel on
  # the live CDs!?)
  modprobe ${MODPRV} unix 2>/dev/null || error "$df_errumod" nonfatal
  modprobe ${MODPRV} vesafb 2>/dev/null || error "$df_errumod" nonfatal
  modprobe ${MODPRV} fbcon 2>/dev/null || error "$df_errumod" nonfatal
}

# distro specific function called from servconfig script
config_distro () {
  # clean the runlevel directories which will be populated by the stage3 setup
  for dir in rc0.d rc1.d rc2.d rc3.d rc4.d rc5.d rc6.d rcS.d ; do
    rm -rf /mnt/etc/${dir}/*
  done
  # add the halt link to the 0 and 6 runlevel directories
  ln -sf ../init.d/halt /mnt/etc/rc0.d/S90halt
  ln -sf ../init.d/reboot /mnt/etc/rc6.d/S90reboot
  
  # remove annoying udev rule set for changing eth interface
  rm /mnt/etc/udev/rules.d/*persistent-net.rules >/dev/null 2>&1

  # inittab is obsolete with the change to upstart in ubuntu 7.10, but to 
  # prevent missunderstandings with the blank inittab created by openslx init
  # we'll write a comment.. 
  echo "# inittab is obsolete with the change to upstart from ubuntu 7.10" \
    > /mnt/etc/inittab

  # fix getty bug
  # (console login on tty1 is started too early)
  sed -i "s/start on runlevel 2/start on stopped rc2/" /mnt/etc/event.d/tty1

  # for screen sessions
  testmkd /mnt/var/run/screen root:utmp 0775
}

# initial (boot time) runlevel scripts
initial_boot () {
local count=10
# boot.slx is a special runlevel script generated within initialramfs which
# should be executed before the normal runlevel scripts. Proper shutdown is
# not needed!?
for i in mountkernfs.sh mountdevsubfs.sh boot.slx keyboard-setup procps \
bootlogd hwclock.sh sudo console-setup $D_SPLASHY; do
  count=$(($count + 1))
  [ $DEBUGLEVEL -ge 2 ] && echo "boot-runlevelscript $i"
  ln -sf /etc/init.d/$i /mnt/etc/rcS.d/S${count}$i
done
}

# linking runlevel scripts
rllinker () {
local script="$1"
if [ $2 -lt 10 ] ; then
  local start="0$2"; else local start="$2"
fi
if [ $3 -lt 10 ] ; then
  local stop="0$3"; else local stop="$3"
fi
# empty runlevel links - decision on running certain services is
# passed via configuration
for i in rc2.d/K$stop$script rc3.d/K$stop$script \
         rc2.d/S$start$script rc3.d/S$start$script ; do
  if ! [ -f /mnt/etc/init.d/$script ]; then
    echo "Target `pwd`../$script does not exist. Skipping links"
    break
  else 
    ln -sf ../init.d/$script /mnt/etc/$i
    [ "$DEBUGLEVEL" == 5 ] && echo "Linked $script"
  fi
done
}

# set up localization like keytable, console
dlocale () {
# fixme -- use keytable setup script here
# echo -e "\t# entries added by $0: $date" >> /mnt/etc/init.d/boot.slx
sed "s/LANG.*/LANG=\"${LANG}\"/" -i /mnt/etc/default/locale
#echo -e "\tsetfont ${CONSOLE_FONT} >${LOGFILE} 2>&1" \
#  >>/mnt/etc/init.d/boot.slx
}

# group of functions for the normal runlevels - first parameter is start
# second stop

# configure udev
config_udev () {
    if [ -f /mnt/etc/init.d/udev ] ; then
       rllinker "udev" 7 14
    fi
    if [ -f /mnt/etc/init.d/udev-finish ] ; then
       rllinker "udev-finish" 24 2
    fi
}

# function for ntp configuration
config_ntp () {
if [ -f /mnt/etc/init.d/ntp -a "x$start_ntp" != "xno" ] ; then
  echo -e "ntp:x:74:65534:NTP daemon:/var/lib/ntp:/bin/false" \
    >>/mnt/etc/passwd
  testmkd /mnt/var/lib/ntp/var/run/ntp
  rllinker "ntp" 7 14
fi
}
# function for atd
config_atd () {
if [ "x$start_atd" = "xyes" ]; then
  # testmkd /mnt/var/spool/atjobs
  # testmkd /mnt/var/spool/atspool
  # chown 1:1 /mnt/var/spool/atjobs /mnt/var/spool/atspool
  rllinker "atd" 14 4
fi
}
# function for configuration of cron services (fixme: to be moved to a plugin?)
config_cron () {
if [ "x$start_cron" = "xyes" ] ; then
  if [ -f /mnt/etc/init.d/cron ] ; then
    rllinker "cron" 18 2
    # fixme! check for proper permissions!
    testmkd /mnt/var/spool/crontabs
    echo -e "# /etc/crontab - file generated by $0:\n\
#\t$date\nSHELL=/bin/sh\nPATH=/usr/bin:/usr/sbin:/sbin:/bin:/usr/lib/news/bin\
\nMAILTO=\n-*/15 * * * *\troot\ttest -x /usr/lib/cron/run-crons && \
/usr/lib/cron/run-crons >/dev/null 2>&1\n" >/mnt/etc/crontab
  else
    error "$df_errcron" nonfatal
  fi 
fi
}
# secure shell service
config_sshd () {
if [ "x$start_sshd" = "xyes" ] ; then
  if [ -f /mnt/etc/init.d/ssh ] ; then
    #testmkd /mnt/var/run/sshd
    rllinker "ssh" 12 10
  else
    error "$df_errsshd" nonfatal
  fi
fi
}
# snmp agent for remote monitoring
config_snmp () {
if [ "x$start_snmp" = "xyes" ] ; then
  if [ -f /mnt/etc/init.d/snmpd ] ; then
    rllinker "snmpd" 24 2
    testmkd /mnt/var/lib/net-snmp
  fi
    # fixme!!
    # write service monitor depending on services started
  fi
}
# acpi and powersave
config_acpi () {
  rllinker "acpid" 10 19
  #Commented out since battery checking is only useful for Notebooks
  #rllinker "acpi-support" 99 2
}
# configure hal, dbus, policykitd and services like that
config_dreshal () {
if [ "x$start_dreshal" = "xyes" ]; then
  testmkd /mnt/var/lib/dbus
  testmkd /mnt/var/lib/misc
  testmkd /mnt/var/cache/hald
  touch /mnt/var/lib/misc/PolicyKit.reload
  chown root:polkituser /mnt/var/lib/misc/PolicyKit.reload
  rm -rf /mnt/etc/dbus-1/system.d/*etwork*anager.conf \
         /mnt/etc/dbus-1/system.d/nm-* \
         /mnt/etc/dbus-1/event.d/*NetworkManager*
  rllinker "dbus" 17 20
  rllinker "hal" 18 15
  if [ ! -e /mnt/etc/init.d/policykit ] ; then
    testmkd /mnt/var/lib/PolicyKit root:polkituser 1770
    testmkd /mnt/var/lib/PolicyKit-public root:polkituser
  else
    rllinker "policykit" 18 10
  fi
fi
}

# initialize boot.slx - skript to be executed during early system startup
# (before most of the normal boot init scripts)
# this script should operate like a normal runlevel script (fixme!!)
d_mkrlscript () {
local switch="$1"
local name="$2"
local info="$3"
case "$switch" in
  init)
    echo -e "#!/bin/sh\n# skeleton of /etc/init.d/$name written \
from $0\n# after you applied changes to the creation scripts you have to \
rerun\n# the mkdxsinitrd script to get them applied\n\n\
. /lib/lsb/init-functions\n" >/mnt/etc/init.d/$name
    echo -e "\n\ncase \"\$1\" in\n    start)\n\tlog_begin_msg \"$info\"" \
      >>/mnt/etc/init.d/$name
    chmod u+x /mnt/etc/init.d/$name
  ;;
  close)
    echo -e "\tlog_end_msg 0\n\t;;\n    stop)\n\t;;\nesac\nexit 0" \
      >>/mnt/etc/init.d/$name
  ;;
esac
}
# configure automounter
config_automount () {
if [ -f /mnt/etc/init.d/autofs ] ; then
  testmkd /mnt/var/lock/subsys
  sed -e "1i# /etc/default/autofs - file modified by\n#\t$0:\n#" \
      -e "s,TIMEOUT.*,TIMEOUT=60," -i /mnt/etc/default/autofs
  config_portmap
  rllinker "autofs" 12 4
fi
}
# start portmapper (needed at least for nfsN and nis services)
config_portmap () {
  rllinker "portmap" 2 20
}
# start NIS (fixme - does the service is really named ypbind??)
config_nis () {
  if [ -f /mnt/etc/init.d/ypbind ] ; then
    rllinker "ypbind" 6 16
    config_portmap
    testmkd /mnt/var/yp/nicknames
  else
    error "$df_erryp" nonfatal
  fi
}
# name service caching daemon (useful in most cases)
config_nscd () {
  if [ -f /mnt/etc/init.d/nscd ] ; then
    testmkd /mnt/var/cache/nscd
    rllinker "nscd" 20 5
  fi
}