#!/sbin/sh

###############################################################################
#
#	Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
#	Use is subject to license terms.
#
#	Copyright 1992-95 AT&T Global Information Solutions
#
#ident	"@(#)luupd_boot.sh	5.8	08/06/25 SMI"
#
# USAGE:        luupd_boot -i <internal_config_file>
# FUNCTION:     Ensure that ABE root disk has a loader and correct VTOC
# INPUT:        Internal Config File
# OUTPUT:
# DEV:          WLH
#
# ALGORITHM:
# 
# If ABE and PBE are on the same disk, the disk already has a loader
# and the VTOC is set to be bootable, so we're done.
#
# Otherwise (ABE and PBE on different devices), call luactivate with
# ABE and -u option to install a loader and update the VTOC. The -u
# option directs luactivate to not call setboot.
# 
###############################################################################

LU_PROG_FULL_PATH="$0"
LU_PROG_NAME="`basename ${LU_PROG_FULL_PATH}`"; export LU_PROG_NAME
ICF=""

#################################################################################################
# Name:		usage
# Description:	output command line usage information; then call exit to terminate execution.
# Local Prefix:	<none>
# Arguments:	$1 = exit code for script ("" defaults to "3").
# Example:	usage 3
# Returns:	<none> 
#################################################################################################

usage()
{
  ${LUPRINTF} -p2 "`gettext 'USAGE: %s [-l error_log] [-o outfile] -i <ABE_icf_file>'`" "${LU_PROG_NAME}"
  if [ -z "$1" ] ; then
    exit 3
  fi
  exit "$1"
}

#################################################################################################
# Name:		<main>
# Description:	Main code (outside of any function definitions) - executed at script startup.
# Local Prefix:	<none>
# Arguments:	$0...$n = All arguments specified by user on command line that invoked this script.
#################################################################################################

# Dot the defaults file.

if [ ! -s /etc/default/lu ] ; then
  echo "${LU_PROG_NAME}: ""`gettext 'ERROR: Live Upgrade not installed properly (/etc/default/lu not found).'`"
  exit 1
fi
. /etc/default/lu

LUBIN=${LUBIN:=/usr/lib/lu}
### LU_OPTFS=${LU_OPTFS:=/etc/lu/optfs}

# Dot the Live Upgrade library functions.

if [ ! -s $LUBIN/lulib ] ; then
  echo "${LU_PROG_NAME}: ""`gettext 'ERROR: The Live Upgrade product is not installed properly (${LUBIN}/lulib not found).'`"
  exit 1
fi

. $LUBIN/lulib

# Check for existence and non-zero size of lutab file.

if [ ! -f /etc/lutab -o ! -s /etc/lutab ] ; then
  ${LUPRINTF} -Eelp2 "`gettext 'No BEs are configured on this system.'`"
  exit 1
fi

  ######################################################################################
  ##################### Command line option and argument processing ####################
  ######################################################################################

# Reset all command line parse flags to default values.
flag_o="" # -o f - output file path.
flag_l="" # -l f - log file path.
flag_x="" # -x n = set debug level to n (PRIVATE).

while [ $# -ne 0 ] ; do
  while getopts i:l:o:x:X c
  do
    case $c in
      i) # -i abe_icf_file
	 ICF=$OPTARG
	 ;;
      l) # -l f - error log file path.
	 # This overrides the LU_ERROR_LOG_FILE setting read from /etc/default/lu
	 lulib_cannot_duplicate_option "${flag_l}" "${OPTARG}" "-l"
	 ${LUPRINTF} -lp2D - "`gettext 'Verifying that the error log file <%s> specified can be created and appended to.'`" "${OPTARG}"
	 ERRMSG="`${LUPRINTF} -c \"${OPTARG}\" 2>&1`"
	 if [ $? -ne 0 ] ; then
	   [ -n "${ERRMSG}" ] && ${LUPRINTF} -elp2 '%s' "${ERRMSG}"
	   ${LUPRINTF} -Eelp2 "`gettext 'Argument <%s> to -l option may not be created or appended to.'`" "${OPTARG}"
	   exit 3
	 fi
	 flag_l="${OPTARG}"
	 lulib_set_error_log_file "${flag_l}"
	 ;;
      n) # -n "n" - be name.
	 lulib_cannot_duplicate_option "${flag_n}" "${OPTARG}" "-n"
	 flag_n="${OPTARG}"
	 ;;
      o) # -o f - output file path.
	 # This overrides the LU_SESSION_LOG_FILE setting read from /etc/default/lu
	 lulib_cannot_duplicate_option "${flag_o}" "${OPTARG}" "-o"
	 ${LUPRINTF} -lp2D -  "`gettext 'Verifying that the session log file <%s> can be created and appended to.'`" "${OPTARG}"
	 ERRMSG="`${LUPRINTF} -c \"${OPTARG}\" 2>&1`"
	 if [ $? -ne 0 ] ; then
	   [ -n "${ERRMSG}" ] && ${LUPRINTF} -elp2 '%s' "${ERRMSG}"
	   ${LUPRINTF} -Eelp2 "`gettext 'Argument <%s> to -o option may not be created or appended to.'`" "${OPTARG}"
	   exit 3
	 fi
	 flag_o="${OPTARG}"
	 lulib_set_session_log_file "${flag_o}"
	 ;;
      x) # -x n - set debug level to n (PRIVATE).
	 # This overrides the default setting read from /etc/default/lu
	 /bin/test "${OPTARG}" -ge 0 2>/dev/null
	 if [ $? -gt 1 ] ; then
	   ${LUPRINTF} -Eelp2 "`gettext 'Argument <%s> to -x option is not a number.'`" "${OPTARG}"
	   usage 3
	 fi
	 lulib_set_debug "${flag_x}"
	 ;;
      X) # -X - set XML output mode.
	  lulib_set_output_format 'xml'
	  ;;
      \?) # unknown - option.
	  usage 3
    esac
  done

  # Found either end of arguments, +option, or non-option argument; shift out
  # what has been processed so far; if a non-option argument is present
  # capture it and continue processing the command line arguments.
  shift `/bin/expr $OPTIND - 1`
  OPTIND=1
  if [ $# -ne 0 -a "$1" = '+X' ] ; then
      # +X - set TEXT output mode.
      lulib_set_output_format 'text'
      shift
  else
    break
  fi
done

# Fixup debug, session log, and error log settings
lulib_fixup_startup_settings

  ######################################################################################
  ############ Validate all command line arguments and options as possible #############
  ######################################################################################

# If any command line arguments provided, exit with error.
if [ $# -ne 0 ] ; then
  ${LUPRINTF} -Eelp2 "`gettext 'Command line arguments <%s> not allowed.'`" "$*"
  usage 3
fi

# Make sure that an internal configuration file name was specified.

if [ -z "${ICF}" ]; then
  ${LUPRINTF} -Eelp2 "`gettext 'You must use the <-i> option to specify the ICF file of the ABE to make bootable.'`"
  usage 3
fi

# Validate the ICF file.

lulib_icf_validate "${ICF}"
if [ "$?" -ne "0" ] ; then
  ${LUPRINTF} -Eelp2 "`gettext 'The file <%s> specified by the <-i> option is not a valid ICF file.'`" "${ICF}"
  usage 3
fi

ABE_NAME=`nawk -F: 'NR == 1 { print $1 }' $ICF`
if [ -z "$ABE_NAME" ]; then
  ${LUPRINTF} -Eelp2 "`gettext 'Internal Configuration File <%s> format error: BE name not defined.'`" "${ICF}"
  exit 1
fi

# Determine ABE root spec from ICF
ABE_root_bdevice=`nawk -F: '$2 == "/" && $6 == "" { print $3 }' $ICF`
if [ -z "$ABE_root_bdevice" ]; then
  ${LUPRINTF} -Eelp2 "`gettext 'Internal Configuration File <%s> format error: BE <%s> root slice not defined.'`" "${ICF}" "${ABE_NAME}"
  exit 1
fi

ABE_poolName=`echo $ABE_root_bdevice | nawk -F/ '  { print $1 }'`

#
# if poolName is NULL then it is a fully specified device path
#
if [ -z "$ABE_poolName" ] ; then
	# Use ABE root spec to get char device
	ABE_root_cdevice="`lulib_get_cdevice $ABE_root_bdevice`"
	if [ -z "$ABE_root_cdevice" ]; then
	  ${LUPRINTF} -Eelp2 "`gettext 'Unable to determine character device node for BE <%s> from <%s>.'`" "${ABE_NAME}" "$ABE_root_cdevice"
	  exit 1
	fi

	# ABE_device will be the part after /dev/rdsk
	ABE_device=`basename $ABE_root_cdevice`
	if [ -z "$ABE_device" ]; then
	  ${LUPRINTF} -Eelp2 "`gettext 'Unable to determine character device node for BE <%s> from <%s>.'`" "${ABE_NAME}" "${ABE_root_cdevice}"
	  exit 1
	fi
fi

# Determine the block device for the current root file system (/);
# e.g. /dev/dsk/c0t0d0s0.
PBE_device=''
PBE_root_bdevice="`${LUETCBIN}/ludo get_root_slice_from_mntpt '/' 2>/dev/null`"
[ "$?" -eq '0' ] && PBE_device="`/usr/bin/basename \"${PBE_root_bdevice}\"`"
if [ -z "$PBE_device" ]; then
  ${LUPRINTF} -Eelp2 "`gettext 'Unable to determine current boot device name.'`"
  exit 1
fi

PBE_poolName=`echo $PBE_root_bdevice | nawk -F/ '  { print $1 }'`

#
# if both ABE and PBE root devices are absolute paths then they are logical
# devices - check to see if they are the same device
#
if [ -z "$PBE_poolName" -a -z "$ABE_poolName" ] ; then
	ABEmaj=`ls -l $ABE_root_bdevice | /usr/bin/sed 's/.*\/devices\//\//g' | sed 's/:.$//g'`
	PBEmaj=`ls -l $PBE_root_bdevice | /usr/bin/sed 's/.*\/devices\//\//g' | sed 's/:.$//g'`
	if [ "$ABEmaj" = "$PBEmaj" ]; then
		# ABE and PBE are on same device. Nothing to do.
		exit 0
	fi
fi

if [ "$ABE_poolName" = "$PBE_poolName" ] ; then
	# ABE and PBE are in the same pool. Nothing to do.
	exit 0
fi

# The -u option directs luactivate to only update loader and vtoc
# (doesn't call setboot). This applies only to sparc as it is unsupportable
# on x86.

if [ "${LU_SYSTEM_ARCH}" = sparc ]; then
   $LUBIN/luactivate -u -n "$ABE_NAME"
   if [ $? != 0 ] ; then
      ${LUPRINTF} -Eelp2 "`gettext 'Update of loader failed.'`"
      exit 1
   fi
fi
exit 0