#/bin/sh
# Copyright(C) 2006 Nokia Corporation.

#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License version 2 as
#  published by the Free Software Foundation.

#  This program is distributed in the hope that it will be useful, but
#  WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
#  General Public License for more details.

#  You should have received a copy of the GNU General Public License
#  along with this program; if not, write to the Free Software
#  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
#  USA

#Modified by NIN101(http://nin101.uni.cx).
#Provides: Shell if demanded by user; maps an LUKS encrypted partition
#Requires busybox-power or at least the applets "loadkmap" & "watchdog"

#WARNING: Charging WON'T work when device is turned off before the
#user pluggs in the charger. Or: It will, but you have to enter
#your LUKS password at a state where the screen is very very dark :-).
#This is because home gets mounted before BME starts. 

 
umask 022
PATH=/sbin:/bin:/usr/sbin:/usr/bin
MODULES="twl4030-vibra
dspbridge
iommu2
omap3-iommu
omap34xxcam-mod
omap_previewer_hack
board-rx51-camera
et8ek8
ad5820
adp1653
vs6555
uinput"

if [ -L /var/run ]
then
	rm -f /var/run
	mkdir /var/run
fi

mount -n -t proc proc /proc
mount -n -t sysfs sysfs /sys
mount -n -t tmpfs -o size=1M,noatime tmpfs /tmp
mount -n -t tmpfs -o size=256k,mode=0755,nosuid,noatime tmpfs /var/run

#MODE=`getbootstate`

# This doesn't really belong here, but we have start this so early
start_bootchart(){
	if [ -e /bootchart -a -e /etc/init.d/bootchart ]
	then
		/etc/init.d/bootchart start
	fi
}

start_softupd()
{
    	echo "Starting software updater"
	/etc/init.d/softupd.rcS
}

in_flash_mode()
{
	grep update /proc/component_version 1>/dev/null 2>/dev/null
}

mount_devpts() {
	TTYGRP=5
	TTYMODE=620

	if [ ! -d /dev/pts ]
	then
	    mkdir /dev/pts
	fi

	if [ ! -c /dev/ptmx ]
	then
	    mknod /dev/ptmx c 5 2
		chmod 666 /dev/ptmx
	fi

	mount -n -t devpts -ogid=$TTYGRP,mode=$TTYMODE devpts /dev/pts
	rm -rf /var/tmp/*
}

# I hate this hack.  -- Md
make_extra_nodes () {
    if [ "$(echo /lib/udev/devices/*)" != "/lib/udev/devices/*" ]; then
	cp -a /lib/udev/devices/* /dev/
    fi
  grep '^[^#]' /etc/udev/links.conf | \
  while read type name arg1; do
    [ "$type" -a "$name" -a ! -e "/dev/$name" -a ! -L "/dev/$name" ] ||continue
    case "$type" in
    L)
      ln -s $arg1 /dev/$name
      ;;
    D)
      mkdir -p /dev/$name
      ;;
    M)
      mknod /dev/$name $arg1 && chmod 600 /dev/$name
      ;;
    *)
      echo "unparseable line ($type $name $arg1)"
      ;;
    esac
  done
}

load_extra_modules () {
    echo -n "Loading extra modules..."
    for i in $MODULES; do
	echo "Loading $i"
	modprobe -q $i ||:
    done
    echo "done."
}

# Mount home and paging partitions if they are available
mount_mmc(){
   device=$1
   swap=$device"p1"
   home=$device"p2"
   test=$device"p3"

   if [ -e $test ]
   then
      echo "Mounting partition $swap for paging"
      # swap disabled as a workaround for Xorg bug, per NB#111807.
      swapon $swap
      modprobe ext3
      echo "Mounting partition $home as home directory"
      mount -t ext3 -o noatime,commit=1,data=writeback $home /home
   else
      echo "No paging partition available as $swap"
      echo "No home partition available as $home"
   fi
}

prepare_start_udev()
{
	. /etc/udev/udev.conf

	if [ -z "$tmpfs_size" ]; then
		tmpfs_size="1M"
	fi

	ACTION=add
	echo -n "Mounting a tmpfs over /dev..."
	mount -n -o size=$tmpfs_size,mode=0755,noatime -t tmpfs none /dev
	echo "done."
	mkdir -p /dev/.udev/db /dev/.udev/queue
	echo "" > /sys/kernel/uevent_helper
	echo -n "Creating extra device nodes... "
	make_extra_nodes
	echo "done."
}

start_udev()
{
    	prepare_start_udev
	/sbin/udevd --daemon
}

make_nodes()
{
	echo -n "Creating device nodes... "

	if [ -x /sbin/udevtrigger ]; then
		/sbin/udevtrigger
	else
		/sbin/udevadm trigger
		#wait for all events
		/sbin/udevadm settle
	fi
	echo "done."
}

# When modifying this script, do not forget that between the time that
# the new /dev has been mounted and udevtrigger has been run there will be
# no /dev/null. This also means that you cannot use the "&" shell command.

	start_bootchart

if in_flash_mode; then
	start_softupd
	reboot
fi

# here only in non-flash mode

# No need to start udev before softupd anymore

	start_udev
	make_nodes
	load_extra_modules

mount_devpts
mount -n -o size=64M,nosuid,nodev,noatime -t tmpfs tmpfs /dev/shm

# mount_mmc "/dev/mmcblk0"

/sbin/hwclock -s || true
 
watchdog -t 10 /dev/twl4030_wdt
watchdog -t 10 /dev/watchdog
modprobe dm_mod
modprobe dm_loop

#LED part taken from a post on talk.maemo.org by Mentalist Traceur. Thx
modprobe leds-lp5523
for i in 1 2 3 4 5 6; do
    echo 25 > /sys/class/leds/lp5523\:kb$i/brightness
done

loadkmap < /nokia-n900.kmap

CONT=0
while [ "$CONT" -ne 1  ] ; do
cryptsetup luksOpen /dev/mmcblk0p2 home_luks
if [ "$?" -eq 0 ] || [ -b /dev/mapper/home_luks ] ; then
CONT=1
fi
done

echo "Press any key to enable shell"
read -n 1 -t 2 shellmode
if [ -n "$shellmode"  ] ; then
sh
fi

killall watchdog


# cannot collect product data if we are under SDK
# it should not be run there, but explicit check is better
OPI=`which osso-product-info`

if [ x$OPI != x ]; then

	# Make sure /etc/hostname and /etc/hosts exist and are not empty. They do not
	# exist if this is the very first boot, and they may be empty if power cut
	# happended before the contents has reached the media.
	if [ ! -f /etc/hostname  -o ! -s /etc/hostname -o ! -f /etc/hosts -o ! -s /etc/hosts ]; then
		hostname="`$OPI -qOSSO_PRODUCT_SHORT_NAME | sed 's/ /-/g'`"
		echo $hostname > /etc/hostname
		echo "127.0.0.1 $hostname localhost" > /etc/hosts
		chmod 644 /etc/hosts
	fi

	# Similarly, make sure /etc/issue and /etc/issue.net are fine
	if [ ! -f /etc/issue -o ! -s /etc/issue -o ! -f /etc/issue.net -o ! -s /etc/issue.net -o -f /home/user/first-boot-flag ]; then
		full_name=`$OPI -qOSSO_PRODUCT_RELEASE_FULL_NAME`
		echo "$full_name \n \l" > /etc/issue
		echo "" >> /etc/issue
		echo "$full_name %h" > /etc/issue.net
	fi
fi

# Note, normally we would have to sync the FS to make sure the files have
# reached the media. But because the files are small, they would be either
# empty or non-existing in case of an unclean reboot, and we handle both
# cases.

hostname -F /etc/hostname
ifup lo &

#echo /sbin/udevsend > /proc/sys/kernel/hotplug

#: > /var/run/utmp
#chmod 664 /var/run/utmp
#chgrp utmp /var/run/utmp

rm -f /etc/mtab
cat /proc/mounts > /etc/mtab

echo 0 > /proc/sys/net/ipv4/conf/all/accept_redirects
echo 0 > /proc/sys/net/ipv4/conf/default/accept_redirects
echo 1 > /proc/sys/net/ipv4/conf/all/rp_filter
echo 1 > /proc/sys/net/ipv4/conf/default/rp_filter
echo 1 > /proc/sys/net/ipv4/icmp_ignore_bogus_error_responses
echo 1 > /proc/sys/net/ipv4/icmp_echo_ignore_broadcasts
echo "49152 65535" > /proc/sys/net/ipv4/ip_local_port_range
echo 6000 > /sys/class/bluetooth/hci0/idle_timeout

# adjust other kernel parameters to minimize memory consumption
# and optimize IO pressure
echo 16 > /proc/sys/kernel/pty/max
echo 1024 > /proc/sys/kernel/threads-max
echo 8192 > /proc/sys/fs/file-max
echo 100 > /proc/sys/vm/swappiness
echo 5 > /proc/sys/vm/page-cluster
echo 500 > /proc/sys/vm/dirty_expire_centisecs
echo 65536 > /proc/sys/net/core/rmem_default
echo 16384 > /proc/sys/net/core/wmem_default
echo 20 > /proc/sys/net/unix/max_dgram_qlen

# Finalize SSU in case it has been interrupted by power failure
if test -x /usr/libexec/ham-rescue.sh; then
  /usr/libexec/ham-rescue.sh
fi

# Disable sysrq to avoid accidental console-carbage resets.
echo 0 > /proc/sys/kernel/sysrq

echo "/what/me/worry" > /proc/sys/kernel/core_pattern
echo 1 > /proc/sys/kernel/panic
echo 1 > /proc/sys/kernel/panic_on_oops

exit 0