#!/bin/ksh
# IBM_PROLOG_BEGIN_TAG 
# This is an automatically generated prolog. 
#  
# bos72L src/bos/etc/dhcpsetup/dhcpsetup.sh 1.2 
#  
# Licensed Materials - Property of IBM 
#  
# Restricted Materials of IBM 
#  
# COPYRIGHT International Business Machines Corp. 2018 
# 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 
#
# @(#)12        1.2  src/bos/etc/dhcpsetup/dhcpsetup.sh, cmdinstl, bos72L, l2018_07A3 2/5/18 16:29:30
#

# Globals

typeset -i rc=0
typeset -i start_service=0

exit_file="/etc/dhcpsetup.nostart"

AWK=/usr/bin/awk
CHRCTCP=/usr/sbin/chrctcp
GREP=/usr/bin/grep
IFCONFIG=/usr/sbin/ifconfig
LSDEV=/usr/sbin/lsdev
RMITAB=/usr/sbin/rmitab

# MAIN

# check for a disablement file (future support)
[[ -f "$exit_file" ]] && exit $rc

# cycle though the list of adapters
# - define dhcp settings for non-existent interfaces
for i in $( $LSDEV -Cc adapter -F name | $GREP ent )
do
	interface="en${i#ent}"
	if_val=$( $IFCONFIG $interface 2>/dev/null | $AWK '/inet/ {print $2}' )

	if [[ -z "$if_val" ]]; then
		echo "\ninterface $interface\n{\noption 19 0\noption 20 0\noption 27 0\noption 29 0\noption 30 0\noption 31 0\noption 34 0\noption 36 0\noption 39 0\n}" >> /etc/dhcpcd.ini

		start_service=1
	fi
done

if [[ $start_service -gt 0 ]]; then
	$CHRCTCP -S -a dhcpcd || rc=1
fi

# auto-run once during deploy
# - remove cloud-ready inittab entry
$RMITAB dhcpsetup 2>/dev/null

# done
exit $rc