#!/bin/ksh

# Author:  David Morris
# Version: $Id: fullbackup,v 1.1 2004/11/05 20:58:17 davey Exp $
# Purpose: Try and backup any UFS or VXFS filesystems in a vfstab
# License: Released under the GNU Public Licence (GPL)
#          The terms of the GPL are available at:
#          http://www.gnu.org/licenses/gpl.html

export VFSTabFile=/etc/vfstab
export FSTypes='ufs vxfs'
export NRBackupDevice=/dev/rmt/0n
export TAPE=/dev/rmt/0
export StartTime=$(date)
echo "INFO: Backup Commenced: $StartTime"

# Parse the vfstab file to get the tasty bits 
function ParseVFSTab {
if [ -f $VFSTabFile ]; then
 for i in $FSTypes 
  do
   /usr/bin/awk '$4 == "'$i'"' $VFSTabFile | /usr/bin/grep -v "^#" |
   /usr/bin/awk '{print $1 " " $2 " " $3 " " $4}'
  done
fi
}

# Check and rewind the tape device
function CheckTape {
 mt -f $TAPE status 
 TapeRetCode=$?
 if [ $TapeRetCode -eq 0 ]; then
 mt -f $TAPE rewind
  continue
 else
  echo "ERROR: cannot get tape status error number: $TapeRetCode"
  exit
 fi
}

#Process the output of ParseVFSTab and run backups
function ProcessVFSTab {
 export Count=0
 while read dev rawdev mpoint fstype 
 do
   print "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
   print "INFO: Backing up ${dev##*/}"
   print "Char Device: $dev"
   print "Raw Device: $rawdev"
   print "Mount Point: $mpoint"
   print "File System type: $fstype"
   print "Count: $Count"
   print "Tape control command to reach this record: mt fsf $Count"
   case $fstype in
    vxfs) DumpCmd="/usr/lib/fs/vxfs/vxdump -f $NRBackupDevice $rawdev"
	   echo INFO: $DumpCmd 
	   $DumpCmd
	   Retcode=$?
 	  if [ $Retcode -eq 0 ]; then
	   echo "INFO: Backup of filesytem $rawdev completed"
	  else
	   echo "ERROR: Backup of $rawdev failed with return code $Retcode"
	  fi
	;;

    ufs) DumpCmd="/usr/sbin/ufsdump 0cfu $NRBackupDevice $rawdev" 
	   echo INFO: $DumpCmd 
	   $DumpCmd
	   Retcode=$?
 	  if [ $Retcode -eq 0 ]; then
	   echo "INFO: Backup of filesytem $rawdev completed"
	  else
	   echo "ERROR: Backup of $rawdev failed with return code $Retcode"
	  fi
	;;
    *) continue ;;
    esac 
  ((Count+=1))
 done
print "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
}

CheckTape
ParseVFSTab | ProcessVFSTab
export EndTime=$(date)
echo "INFO: Backup Completed: $EndTime"