#!/bin/bash

# Copyright (c) 2012 NTT DOCOMO, INC. 
# All Rights Reserved.
#
#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.

echo "init"

source /init-func

PATH=/sbin:/bin:/usr/bin:/usr/sbin
export PATH

mkdir -p /proc
mkdir -p /sys
mkdir -p /dev
mkdir -p /boot
mkdir -p /etc
mkdir -p /mnt
mkdir -p /lib/modules

mount -t proc proc /proc

readonly _BOOTIF_=$(get_kernel_parameter BOOTIF)
readonly _IP_=$(get_kernel_parameter ip)
readonly _CMDLINE_FLAVOUR=$(get_kernel_parameter FLAVOUR)
readonly FLAVOUR=${_CMDLINE_FLAVOUR:-baremetal}
readonly BOOT_MAC_ADDRESS=$(echo "$_BOOTIF_" | sed -e "s/-/:/g"  | sed -e "s/^01://g" | tr 'a-f' 'A-F')
readonly BOOT_IP_ADDRESS=$(echo "$_IP_" | cut -d':' -f1)
readonly BOOT_SERVER=$(echo "$_IP_" | cut -d':' -f2)
readonly BOOT_NETMASK=$(echo "$_IP_" | cut -d':' -f4)

readonly DISK=$(get_kernel_parameter disk)

readonly DEPLOYMENT_ID=$(get_kernel_parameter deployment_id)
readonly DEPLOYMENT_KEY=$(get_kernel_parameter deployment_key)
readonly ISCSI_TARGET_IQN=$(get_kernel_parameter iscsi_target_iqn)

string_contains $FLAVOUR "baremetal"
if [ "$?" == "0" -a -z "$ISCSI_TARGET_IQN" ]; then
	echo "iscsi_target_iqn is not defined"
	echo "Starting troubleshooting shell."
	bash
fi

mount -t sysfs none /sys
mount -t tmpfs none /dev
ln -sf /proc/self/fd /dev/fd
mknod /dev/null c 1 3
mknod /dev/zero c 1 5
mknod /dev/random c 1 8
mknod /dev/urandom c 1 9
mknod /dev/tty0 c 4 0
mknod /dev/tty1 c 4 1
mknod /dev/tty2 c 4 2
mknod /dev/tty3 c 4 3
mknod /dev/tty4 c 4 4
mknod /dev/tty5 c 4 5
mknod /dev/tty6 c 4 6
mknod /dev/tty7 c 4 7
mknod /dev/tty8 c 4 8
mknod /dev/tty9 c 4 9
mknod /dev/tty c 5 0
mknod -m 0600 /dev/console c 5 1
mknod -m 0666 /dev/ptmx c 5 2
mkdir -p /dev/.udev
mkdir -p /dev/.udev/data

echo "starting syslogd"

echo '*.* /initlog' > /etc/syslog.conf
syslogd
klogd

echo "starting udevd"
udevd --daemon --resolve-names=never

echo "load modules"
load_modules_by_udev

echo "starting network $BOOT_MAC_ADDRESS"
t=0
while ! BOOT_INTERFACE=$(find_interface "$BOOT_MAC_ADDRESS"); do
	t=`expr "$t" + 5`
	if [ "$t" -gt 10 ]; then
		break
	fi
	sleep 5
done
if [ -z "$BOOT_INTERFACE" ]; then
	echo "could not find an interface owns MAC=$BOOT_MAC_ADDRESS"
	echo "Starting troubleshooting shell."
	bash
fi

readonly BOOT_INTERFACE

ifconfig lo 127.0.0.1 up
ifconfig "$BOOT_INTERFACE" up
if [ $? -ne 0 ]; then
	sleep 10
	ifconfig "$BOOT_INTERFACE" up
	if [ $? -ne 0 ]; then
		echo "Failed to up $BOOT_INTERFACE"
		echo "Starting troubleshooting shell."
		bash
	fi
fi
ifconfig "$BOOT_INTERFACE" "$BOOT_IP_ADDRESS" netmask "$BOOT_NETMASK"

echo "pinging to boot server $BOOT_SERVER"
w=30
while [ $w -gt 0 ]; do
	ping -c 5 -q "$BOOT_SERVER" > /dev/null
	if [ $? -eq 0 ]; then
		break
	fi
	sleep 1
	w=`expr $w - 5`
done

echo "network ready"

string_contains $FLAVOUR "baremetal"
if [ "$?" == "0" ]; then
  target_disk=`find_disk "$DISK"`
  echo "start iSCSI target on $target_disk"
  start_iscsi_target "$ISCSI_TARGET_IQN" "$target_disk" ALL
  if [ $? -ne 0 ]; then
	  echo "Could not find disk to use."
	  echo "Starting troubleshooting shell."
	  bash
  fi

  echo "request boot server to deploy image"
  d="i=$DEPLOYMENT_ID&k=$DEPLOYMENT_KEY&a=$BOOT_IP_ADDRESS&n=$ISCSI_TARGET_IQN"
  wget --post-data "$d" "http://$BOOT_SERVER:10000"

  echo "waiting for notice of complete"
  nc -l -p 10000

  echo "stop iSCSI target on $target_disk"

  stop_iscsi_target
fi

string_contains $FLAVOUR "hwdiscovery"
if [ "$?" == "0" ]; then
  echo "Starting HW Discovery"
  # XXX: Collect iLO specific data, bundle everything up and POST it somewhere
  lshw -json # XXX: Do something with this
  sleep 30
fi

string_contains $FLAVOUR "hwburnin"
if [ "$?" == "0" ]; then
  echo "Starting HW Burnin"
  memtester 1G 10 # XXX: Discover RAM size
  # XXX: Discover and test disks with spew
fi

echo "rebooting"
reboot -f

echo "failed to reboot"
echo "Starting troubleshooting shell."
bash