#!/sbin/sh
#Tag 0x00000800

#
# Automatically re-configure the kernel. This script uses the
# /etc/config/autoconfig.options file to tell lboot to either
# prompt for permission to reconfigure the kernel or not. The
# default autoconfig.options file contains a '-T', which indicates
# to lboot to reconfigure the kernel without prompting for
# permission. A 't' indicates to lboot to prompt for permission
# first.
#
# When autoconfig runs at system startup, it uses -T or -t to indicate
# to lboot that it should use 'Smart' mode. In 'Smart' mode, lboot
# determines whether or not it should build a new kernel by looking
# at the dates of files in /var/sysgen and comparing to the date of
# /unix. In 'Smart' mode, lboot also auto-registers dynamically loadable
# kernel modules, such as tpsc, hpcplp, hpc3plp, ticlts, dial, sball, 
# tablet, wacom, etc. 
#
# If the LBOOTOPTS below are changed, so that they don't pass -T or -t
# to lboot, autoconfig will not perform its 'Smart' mode tasks, as 
# described above.
#
# "$Revision: 1.52 $"

LBOOTOPTS=
FORCE=
LD_LIBRARY_PATH=
#
# If autoconfig.options is 0 or is missing, then default to -T.
# Also, if it contains bogus information, default to -T.
#
if [ -f /etc/config/autoconfig.options ]; then
	FORCE=`cat /etc/config/autoconfig.options 2> /dev/null`
else
	FORCE=""
fi
if test "$FORCE" = ""; then
	FORCE="-T"
fi

TARGET=${UNIX:=/unix}

USAGE="`basename $0`: [-vf] [-p toolroot] [-d /var/sysgen] [-o lbootopts] [start|stop]"

while getopts "vnfp:d:o:" c; do
    case $c in
    v) if test "$verbose" = "-v"; then
	    set -x
	else
	    verbose="-v"
	    LBOOTOPTS="$LBOOTOPTS -v"
	fi
	;;
    n) LBOOTOPTS="$LBOOTOPTS -e";;
    f) FORCE=""
       TARGET=${TARGET}.install;;
    p) TOOLROOT="$OPTARG";;
    d) SYSGEN="$OPTARG";;
    o) if test "$OPTARG" = "-t" -o "$OPTARG" = "-T"; then
	    FORCE=$OPTARG
	else
	    LBOOTOPTS="$LBOOTOPTS $OPTARG"
	fi
	;;
    \?) echo $USAGE; exit 1;;
    esac
done
shift `expr $OPTIND - 1`

SYSGEN=${SYSGEN:-/var/sysgen}
BOOTAREA=${BOOTAREA:-${SYSGEN}/boot}
SYSTEM=${SYSTEM:-${SYSGEN}/system}
MASTERD=${MASTERD:-${SYSGEN}/master.d}
STUNEFILE=${STUNEFILE:-${SYSGEN}/stune}
MTUNEDIR=${MTUNEDIR:-${SYSGEN}/mtune}
WORKDIR=${WORKDIR:-${SYSGEN}}


# TOOLROOT and ROOT control where lboot looks for tools and does its work
#   TOOLROOT is normally set in the system file.
TOOLROOT=${TOOLROOT:-$SYSGEN/root}
export TOOLROOT


LBOOT=/usr/sbin/lboot
SETSYM=/usr/sbin/setsym

LBOOTOPTS="$LBOOTOPTS $FORCE -m $MASTERD -b $BOOTAREA -w $WORKDIR -s $SYSTEM -u $TARGET -c $STUNEFILE -n $MTUNEDIR"

cd /


case $1 in
    ""|start)
	for nm in $LBOOT $TOOLROOT/usr/bin/cc $TOOLROOT/usr/bin/ld; do
	    if test ! -x $nm; then
		echo "`basename $0`: cannot find $nm" 1>&2
		exit 1
	    fi
	done
	for nm in $BOOTAREA $MASTERD $SYSTEM; do
	    if test ! -d $nm; then
		echo "`basename $0`: cannot find $nm" 1>&2
		exit 1
	    fi
	done

	# note - set -e in a case stmt doesn't work right in /bin/sh
	rm -rf ${UNIX}.install

	/sbin/suattr -C CAP_DEVICE_MGT+ip -c "$LBOOT $LBOOTOPTS"
	if [ $? != 0 ]
	then
		# dont print anything since a no answer to Automatically ..
		# causes lboot to exit 1
		exit 1
	fi

	#
	#  The following puts labels on files created in ${SYSGEN}
	#  while in the mini-root when trix is installed.
	#
	if [ -f $BOOTAREA/mac.a ] ; then
		echo "labeling ${SYSGEN}" 1>&2
		/sbin/suattr -C all=epi -c "/usr/bin/find ${SYSGEN} -follow -print |xargs /sbin/attrinit -mac=dblow" > /dev/null
	fi

	if test -w ${UNIX}.install; then
		chmod a+r ${UNIX}.install
		if test -x $SETSYM ; then
			$SETSYM ${UNIX}.install > /dev/null 2>&1
			# Ignore any error return from setsym, so autoconfig
			# will not exit non-zero if setsym has a problem.
			true
		fi
	fi
	;;

    stop)
	exit 1
	;;

    *)
	echo "$USAGE"
	exit 1
	;;
esac