# Description:  configuration script for Gentoo V2005.1 to configure
#               linux diskless clients (executed within initial ramdisk 
#               after genconfig) 
#
# Author(s):    Dirk von Suchodoletz <dirk@goe.net>, 08-07-2006
#
# Copyright:    (c) 2006 - RZ Universitaet Freiburg
# 
# Version:      0.0.2c

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

# distro specific general function called from servconfig script
config_distro () {
echo -e "dxs version 4.0a\ninitramfs generation date $date" \
  >> /mnt/etc/gentoo-release
echo -e "# changes made to this file by $0 (initrd from $date)" \
  > /etc/rc.conf
# keytable is set by hwautocfg script (added just for convenience here)
config_rc_entry "KEYMAP" "${KEYTABLE}"
}

# udev service - not verified!
udev_hotplug () {
echo "Starting udev"
ln -s /bin/udevd /bin/udevstart && udevstart &
if [ -x /bin/udevd ] ; then
  export UDEVD_EXPECTED_SEQNUM=$(cat /sys/kernel/hotplug_seqnum)
  export UDEVD_EVENT_TIMEOUT=1
  echo "" > /proc/sys/kernel/hotplug
  udevd &
else error "$df_errudev" nonfatal
fi
}

# linking runlevel scripts
rllinker () {
local script="$1"
local need="$2"
# empty runlevel links - decision on running certain services is
# passed via configuration
ln -s /etc/${D_INITDIR}/$1 /mnt/etc/runlevels/default/$1
echo $1 >> /mnt/etc/runlevels/default/.critical
# hack to remove unneeded dependency stuff
#if [ "$script" != "vmware-prep" ] ; then
#  sed "/depend/,/}/d" /mnt/etc/${D_INITDIR}/$1 > /etc/rls
#  cp /etc/rls /mnt/etc/${D_INITDIR}/$1
#fi
}

# setup initial boot scripts (rather strange concept I did not get 
# completely)
initial_boot () {
rm /mnt/etc/runlevels/*/.critical 2>/dev/null
for i in ${D_INITSCRIPTS}; do
  ln -sf /etc${D_INITDIR}/$i /mnt/etc/${D_INITBOOTD}/$i
  echo $i >> /mnt/etc/${D_INITBOOTD}/.critical
  echo $i >> /mnt/etc/runlevels/default/.critical
done
}

# initialize boot.ld - 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
# initialize boot.ld - 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 "#!/sbin/runskript\n# skeleton of /etc/${D_INITDIR}/$name \
generated by $0\ndepend() {\n\t:\n}" >/mnt/etc/${D_INITDIR}/$name
    echo -e "\n\nstart() {\n\tebegin \"$info\"" \
      >>/mnt/etc/${D_INITDIR}/$name
    chmod u+x /mnt/etc/${D_INITDIR}/$name
  ;;
  close)
    echo -e "\n}\n\nstop() {\n\t:\n}\n# vim:ts=4" \
      >>/mnt/etc/${D_INITDIR}/$name
  ;;
esac
}

# group of functions for the normal runlevels
# function for ntp configuration (unchecked)
config_ntp () {
if [ -e /mnt/etc/${D_INITDIR}/ntp ] ; then
  if ! strinfile "ntp:" /mnt/etc/passwd ; then
    echo -e "ntp:x:74:65534:NTP daemon:/var/lib/ntp:/bin/false" \
      >>/mnt/etc/passwd
    echo -e "ntp:!:13099:0:99999:7:::" >>/mnt/etc/shadow
  fi
  testmkd /mnt/var/lib/ntp/var/run/ntp &>/dev/null
  if [ "x$start_ntp" = "xinitial" ] ; then
    echo -e "\t# entries added by $0 (InitRamFS from $date)\n\
\t( ntpdate -s -b $ntp_servers >${LOGFILE} 2>&1 && {\n\t  which \
hwclock &>/dev/null && hwclock -w;} ) &" \
      >>/mnt/etc/${D_INITDIR}/boot.ld
  elif [ "x$start_ntp" = "xyes" ] ; then
    rllinker "ntp"
  fi
fi
}

# function for atd (unchecked)
config_atd () {
if [ "x$start_atd" = "xyes" ]; then
  rllinker "atd"
fi
}

# cron service
config_cron () {
if [ "x$start_cron" = "xyes" ] ; then
  if [ -f /mnt/etc/${D_INITDIR}/cron ] ; then
    :
  else
    error "$df_errcron" nonfatal
  fi
fi
}

# syslog service
config_syslog () {
if [ "x$start_syslog" = "xyes" ] ; then
  if [ -f /mnt/etc/${D_INITDIR}/syslog-ng ] ; then
    rllinker syslog-ng
  else
    error "$df_errsysl" nonfatal
  fi
fi
}

# secure shell service
config_sshd () {
if [ "x$start_sshd" = "xyes" ] ; then
  if [ -f /mnt/etc/${D_INITDIR}/sshd ] ; then
    rllinker "sshd"
  else
    error "$df_errsshd" nonfatal
  fi
fi
}

# snmp agent for remote monitoring (unchecked)
config_snmp () {
if [ "x$start_snmp" = "xyes" ] ; then
  if [ -f /mnt/etc/${D_INITDIR}/snmpd ] ; then
    rllinker "snmpd"
    testmkd /mnt/var/lib/net-snmp >/dev/null 2>&1
  fi
    # fixme!!
    # write service monitor depending on services started
  fi
}

# configure X display manager (runlevel links and kind of manager)
config_xdm () {
if [ -f /mnt/etc/${D_INITDIR}/xdm ] ; then
  sed -e "s,DISPLAYMANAGER=.*,DISPLAYMANAGER=\"xdm\"," -i /mnt/etc/rc.conf
  ln -s /etc/${D_INITDIR}/xdm /mnt/etc/runlevels/boot/xdm
  ln -s /etc/${D_INITDIR}/xdm /mnt/etc/runlevels/default/xdm
  echo "xdm" >> /mnt/etc/runlevels/boot/.critical
fi
}

# change entries in rc.conf (most for convenience only)
config_rc_entry () {
local var=$1
local value=$2
sed -e "s,$var=.*,$var=\"$value\"," -i /mnt/etc/rc.conf
}

# configure gdm
config_gdm () {
config_rc_entry "DISPLAYMANAGER" "gdm"
# fixme!! check for needed directories and permissions
#testmkd /mnt/var/lib/gdm
#testmkd /mnt/var/log/gdm
#strinfile "gdm:" /mnt/etc/passwd || echo "gdm:x:50:15:Gnome Display Manager \
#Daemon:/var/lib/gdm:/bin/false" >>/mnt/etc/passwd
# hack - gdm should be user 50 and shadow group 15
#chown 50:15 /mnt/var/lib/gdm /mnt/var/log/gdm
#chmod 0750 /mnt/var/lib/gdm /mnt/var/log/gdm
#rllinker "gdm" ??
}

# configure kdm as display manager
config_kdm () {
config_rc_entry "DISPLAYMANAGER" "kdm"
}

# configure bluetooth services
config_bt () {
rllinker "bluetooth"
}

# set consolefont
consolefont () {
echo -e "\tsetfont ${CONSOLE_FONT} >${LOGFILE} 2>&1\n" \
  >>/mnt/etc/${D_INITDIR}/boot.ld
config_rc_entry "CONSOLEFONT" "${CONSOLE_FONT}"
}

# acpi and powersave
config_acpi () {
rllinker acpid
# remove dependencies (runs unneeded services ...)
sed "/depend/,/}/d" -i /mnt/etc/${D_INITDIR}/acpid
}

# configure automounter
config_automount () {
if [ -f /mnt/etc/${D_INITDIR}/autofs ] ; then
  rllinker autofs
  if [ -n "${automnt_src}" ] ; then
    # local directory and home directory server from machine-setup
    [ -z "${automnt_dir}" ] && automnt_dir="/home"
    strinstr "/" "${automnt_dir}" && error "$df_erratpld" nonfatal
    automnt_dir=${automnt_dir#/}
    echo -e "/home\t/etc/auto.${automnt_dir}\n" >> /mnt/etc/auto.master
    echo -e "# /etc/auto.${automnt_dir} created by $0:\n" \
      > /mnt/etc/auto.${automnt_dir}
    echo -e "*\t-rsize=32768,wsize=32768,rw\t${automnt_src}/&" \
      >> /mnt/etc/auto.${automnt_dir}
    config_portmap
  fi
else
  error "$df_erramnt" nonfatal
fi
}

# start name service caching daemon (recommended in combination with 
# ldap source as user admin base)
config_nscd () {
if [ -f /mnt/etc/${D_INITDIR}/nscd ] ; then
  #testmkd /mnt/var/run/nscd
  rllinker "nscd"
fi
}

# start portmapper (needed at least for nfs and nis services - unchecked)
config_portmap () {
rllinker "portmap"
}

# start NIS (fixmee: does the start script is really named ypbind?)
config_nis () {
rllinker "ypbind"
}

# start vmware and vmware preparation services
config_vmware () {
rllinker "vmware-prep"
rllinker "vmware"
# during vmware sessions linux should not handle usb events/devices
testmkd /mnt/var/X11R6/bin
echo '#!/bin/sh'>> /mnt/etc/udev/rules.d/01-udev-vm.rules
echo -e "# Script for blocking linux from handling usb \
devices\n# during vmware sessions. If you like to remove certain modules \
add them\n# to the list below - Dirk von Suchodoletz, <dirk@goe.net>\n\
STATE=1\nps aux|grep -i vmware|grep -v \"grep\" &>/dev/null && { STATE=0; \
/sbin/rmmod usb-storage &>/tmp/null; }\n\
[ x\$ACTION = xremove ] && { [ \$STATE = 0 ] && /sbin/rmmod usb-storage \
&>/dev/null; }\nexit \$STATE" > /mnt/var/X11R6/bin/vm-udev
chmod u+x /mnt/var/X11R6/bin/vm-udev
echo -e "# special entry to block linux from reacting to usb events during \
running\n# vmware sessions, generated by $0 during initramfs\n# Dirk von \
Suchodoletz, <dirk@goe.net>\nSUBSYSTEM==\"usb\", ACTION==\"add\", \
PROGRAM=\"/var/X11R6/bin/vm-udev\", OPTIONS=\"ignore_device\"\n\
SUBSYSTEM==\"usb\", ACTION==\"remove\", PROGRAM=\"/var/X11R6/bin/vm-udev\"" \
  >> /mnt/etc/udev/rules.d/01-udev-vm.rules
}