#!/bin/ksh
# IBM_PROLOG_BEGIN_TAG 
# This is an automatically generated prolog. 
#  
# bos720 src/bos/usr/lib/nim/methods/c_mkshroot.sh 1.2 
#  
# Licensed Materials - Property of IBM 
#  
# Restricted Materials of IBM 
#  
# COPYRIGHT International Business Machines Corp. 2009 
# All Rights Reserved 
#  
# US Government Users Restricted Rights - Use, duplication or 
# disclosure restricted by GSA ADP Schedule Contract with IBM Corp. 
#  
# IBM_PROLOG_END_TAG 
# @(#)51        1.2  src/bos/usr/lib/nim/methods/c_mkshroot.sh, cmdnim, bos720 4/16/09 08:36:10

#   COMPONENT_NAME: CMDNIM
#
#   FUNCTIONS: ./usr/lib/nim/methods/c_mkshroot.sh
#		
#   ORIGINS: 83
#

# include common NIM shell defines/functions
NIMPATH=${0%/*}
NIMPATH=${NIMPATH%/*}
[[ ${NIMPATH} = ${0} ]] && NIMPATH=/usr/lpp/bos.sysmgt/nim
NIM_METHODS="${NIMPATH}/methods"
. ${NIM_METHODS}/c_sh_lib

#---------------------------- module globals    --------------------------------
REQUIRED_ATTRS="location spot"
OPTIONAL_ATTRS=""

# include common root/shared_root defines/functions
. ${NIM_METHODS}/dd_funcs

#*---------------------------- c_mkshroot         ------------------------------
#
# NAME: c_mkshroot
#
# FUNCTION:
#	create and populate a shared root directory for a diskless client
#
# EXECUTION ENVIRONMENT:
#
# NOTES:
#
# RECOVERY OPERATION:
#
# DATA STRUCTURES:
#		parameters:
#		global:
#
# RETURNS: (int)
#		0							= no errors
#		>0							= failure
#
# OUTPUT:
#-----------------------------------------------------------------------------*/

# signal processing
trap cleanup 0
trap err_signal 1 2 11 15

# NIM initialization
nim_init

# set parameters from command line
while getopts :a:qv c
do
	case ${c} in

		a)		# validate the attr ass
				parse_attr_ass "${OPTARG}"

				# if host:dir format given, separate them
				if [[ ${value} = ?*:/* ]]
				then
					eval ${variable}=\"${value#*:}\"
					eval ${variable}"_host"=${value%:*}
				else
					eval ${variable}=\"${value}\"
				fi
		;;

		q)		# show attr info
				cmd_what
				exit 0
		;;

		v)		# verbose mode (for debugging)
				set -x
				for i in $(typeset +f)
				do
					typeset -ft $i
				done
		;;

		\?)	# unknown option
				error ${ERR_BAD_OPT} ${OPTARG}
		;;
	esac
done

# check for missing attrs
ck_attrs

# save the root path from the location variable
root="${location}"

# populate the shared root directory
pop_root

# Set the dump device ODM stuff here, once for all
set_odm_dump

# save ${root}/etc/hosts and link it to /../etc/hosts.
# this link will be used by clients in phase 2 of boot.
cp ${root}${HOSTS} ${root}${HOSTS}.save
ln -fs /..${HOSTS} ${root}${HOSTS}

# link /unix to the 64 bit kernel
/usr/bin/ln -fs /usr/lib/boot/unix_64 ${location}/unix

# add a link from ${root}usr/lib to /../usr/lib
ln -fs /../usr/lib ${root}/usr/lib 

# create the client specific dedicated directory
mkdir ${root}/${SHROOT_CUSTDIR}

# success
exit 0