#!/sbin/sh
# UberJS Version 3.05.0-Solaris8Mini
### ... stripped of:
### - DHCP, as we will not be using it.
### - ROUTED, same as for DHCP. 
### - WGET, FTP/HTTP(S) access is not (yet) available. (WAN-boot may require this at some point in time).
###
### Enhancements added:
### - Use only primary interfaces (eg eri0) to simulate the net boot, not reversed from hme2 back to 0.
###
### Bug-fixes:
### - 'gw' is not part of 'route add default' on Solaris (it is on GNU/Linux).
### - Several shellcoding & style issues fixed (clean-up), for easy reading.
###
### VERSION:
### $Id: uberjs-exec,v 1.18 2004/02/26 14:21:45 g7143m55 Exp $
### Author: Classified
###

# -- Globals

SCRIPT="`basename $0`"
TMPNFS="/tmp/nfs"

# -- Functions

warn() {
	echo "$@" >&2
	return 0
}

die() {
	warn "$@. Aborted"
	# Below *MAY* be a security-issue
	/sbin/sh -i
	exit 1
}

stop_on_user_request() {
	# $@ = any answer
	case "$@" in
	[Qq]|[Qq][Uu][Ii][Tt]|[Xx]|[Ee][Xx][Ii][Tt]|[Hh][Aa][Ll][Tt]|[Ss][Tt][Oo][Pp])
		die "Stopped at user request"
		;;
	*)
		;;
	esac
	return 0
}

ask_and_set() {
	# $1 = question (required)
	# $2 = variable containing answer (required)
	# $3 = default value (optional)
	if [ "$#" -lt 2 ]; then
		die "ask_and_set: missing parameter. Internal error"
	fi
	correct=0
	answer=""
	question="$1"
	variable="$2"
	default="$3"
	while [ "$correct" -ne 1 ]
	do
		echo "$question"
		if [ "x$default" != "x" ]; then
			echo "Press ENTER to use [$default]"
		fi
		read answer
		if [ "x$answer" = "x" ]; then
			answer="$default"
		fi
		stop_on_user_request $answer
		echo "You entered: ${answer}"
		echo "Is this correct? [y/n]"
		read response
		stop_on_user_request $response
		case "$response" in
		[Yy]|[Yy][Ee][Ss])
			correct=1
			;;
		*)
			;;
		esac
	done
	eval ${variable}="${answer}"
	return 0
}

#######################################################################
# -- MAIN

cat <<_EOF

Mini-UberJS based on:
UberJS Standard v3.05.0 with NetInit v3.04.10 Booting

$SCRIPT
\$Id: uberjs-exec,v 1.18 2004/02/26 14:21:45 g7143m55 Exp $

_EOF

# -- Interface

PRI_IF="`ifconfig -a | grep '^[a-z]*[0-9]:' | sed 's/^\([a-z]*[0-9]\):.*/\1/' | grep -v '^lo[0-9]' | head -1`"

IP_FROM_ETHERS=""
MY_NETMASK=""

ask_and_set "Please enter IP address for $PRI_IF:" \
	IP_FROM_ETHERS

ask_and_set "Please input netmask for $PRI_IF (dotted decimal):" \
	MY_NETMASK \
	"255.255.240.0"

echo "Configuring ${PRI_IF}..."
ifconfig $PRI_IF up $IP_FROM_ETHERS netmask $MY_NETMASK >/dev/null 2>&1
if [ "$?" -ne 0 ]; then
	die "Failed to configure $PRI_IF"
fi

# Wait for the 'configured' message
sleep 5

# -- Routing

DEFROUTER=""
ask_and_set "Please enter gateway address:" \
	DEFROUTER

echo "Using default router ${DEFROUTER}"
route add default $DEFROUTER

echo "Putting default route in /tmp/root/etc/defaultrouter"
echo "${DEFROUTER}" > /tmp/root/etc/defaultrouter

# -- Hostname

ask_and_set "Please type the hostname of this system:" HOSTNAME bootcd
uname -S ${HOSTNAME:-localhost}

# -- NFS/Jumpstart

NFS_SRV=""
NFS_BASE=""
INSTALL_FS=""
PROFILE_FS=""
SYSID_FS=""

ask_and_set "Please type the IP-address of the Jumpstart/NFS server" \
	NFS_SRV \
	"10.102.194.175"

ask_and_set "Please type the Jumpstart/NFS mount-point:" \
	NFS_BASE \
	"/export/jumpstart"

ask_and_set "Please type the NFS path to the rules.ok directory:" \
	PROFILE_FS \
	"."

ask_and_set "Please type the NFS path to the Media directory:" \
	INSTALL_FS \
	"OS/Solaris_8.0_2003-05"

ask_and_set "Please type the NFS path to the Sysid Config directory (Sysidcfg/uXYZ):" \
	SYSID_FS \
	"Sysidcfg/${HOSTNAME}"

# -- Handle mount-points & Jumpstart set-up

if [ ! -d "${TMPNFS}" ]; then
	# If it already existed mkdir might fail on a readonly fs
	mkdir -p "${TMPNFS}" >/dev/null 2>&1 || \
		die "Failed to create ${TMPNFS}"
fi

cd /
umount /cdrom >/dev/null 2>&1

echo "Mounting the Jumpstart(tm) directory from ${NFS_SRV}:${NFS_BASE} on $TMPNFS"
mount -F nfs -o ro "${NFS_SRV}:${NFS_BASE}" $TMPNFS 2>&1 || \
	die "Mount failed, spawning a shell"

echo "Mounting the install media from ${NFS_SRV}:${NFS_BASE}/${INSTALL_FS} on /cdrom"
mount -F nfs -o ro "${NFS_SRV}:${NFS_BASE}/${INSTALL_FS}" /cdrom 2>&1 || \
	die "Mount failed, spawning a shell"

# did it this way in case sun changes where SI_CONFIG_DIR is.
# This usually is /tmp/install_config
SI_CONFIG_DIR="`grep SI_CONFIG_DIR= /usr/sbin/install.d/profind | awk -F= '{print $2}'`"
SI_CONFIG_DIR_PATH="`dirname $SI_CONFIG_DIR`"	# should be /tmp (could be /tmp/bla/bla)
SI_CONFIG_DIR_BASE="`basename $SI_CONFIG_DIR`"	# should be install_config

mkdir -p "$SI_CONFIG_DIR_PATH"
ln -s "${TMPNFS}/${PROFILE_FS}" "$SI_CONFIG_DIR"

if [ -d /tmp/sysidfs ]; then
	rm -rf /tmp/sysidfs
fi
ln -s "${TMPNFS}/${SYSID_FS}" /tmp/sysidfs

if [ -f /tmp/sysidfs/sysidcfg ]; then
	echo "Copying sysidcfg file into /tmp/root/etc"
	cp /tmp/sysidfs/sysidcfg /tmp/root/etc
else
	# JVB: For debugging
	die "No sysidcfg file was found"
fi

echo "$SCRIPT done."