X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=bacula%2Fscripts%2Fmtx-changer.in;h=1fe5f003bedc0f1f12ac757e903df5d8495ed482;hb=6e8ace1801ce2e14222759e320196c18850fe83d;hp=e390913b50c38826735d1f110080cbd8eee41a0a;hpb=5e1e4bafd27d59dca3d7cecba2485a0a082d1ac8;p=bacula%2Fbacula

diff --git a/bacula/scripts/mtx-changer.in b/bacula/scripts/mtx-changer.in
index e390913b50..1fe5f003be 100644
--- a/bacula/scripts/mtx-changer.in
+++ b/bacula/scripts/mtx-changer.in
@@ -6,12 +6,12 @@
 #
 #  If you set in your Device resource
 #
-#  Changer Command = "path-to-this-script/mtx-changer" %c %o %S %a %d
+#  Changer Command = "path-to-this-script/mtx-changer %c %o %S %a %d"
 #    you will have the following input to this script:
 #
 #  So Bacula will always call with all the following arguments, even though
 #    in come cases, not all are used.
-
+#
 #  mtx-changer "changer-device" "command" "slot" "archive-device" "drive-index"
 #		   $1		   $2	    $3	      $4	       $5
 #
@@ -23,6 +23,18 @@
 #   the SCSI control channel is /dev/sg0, and the read/write device
 #   is /dev/nst0.
 #
+#  The commands are:
+#      Command		  Function
+#      unload		  unload a given slot
+#      load		  load a given slot
+#      loaded		  which slot is loaded?
+#      list		  list Volume names (requires barcode reader)
+#      slots		  how many slots total?
+#
+#  Slots are numbered from 1 ...
+#  Drives are numbered from 0 ...
+#
+#
 #  If you need to an offline, refer to the drive as $4
 #    e.g.   mt -f $4 offline
 #
@@ -35,8 +47,52 @@
 #
 
 MTX=@MTX@
-# Set this to a directory that only the SD can read/write
-TMPDIR=@working_dir@
+
+# mt status output
+# SunOS     No Additional Sense
+# FreeBSD   Current Driver State: at rest.
+# Linux     ONLINE
+
+OS=`uname`
+case ${OS} in
+  SunOS)
+    ready="No Additional Sense"
+    ;;
+  FreeBSD)
+    ready="Current Driver State: at rest."
+    ;;
+  *)
+    ready="ONLINE"
+  ;;
+esac
+
+#
+# log whats done
+#
+# to turn on logging, uncomment the following line
+#touch @working_dir@/mtx.log
+#
+dbgfile="@working_dir@/mtx.log"
+debug() {
+    if test -f $dbgfile; then
+	echo "`date +\"%Y%m%d-%H:%M:%S\"` $*" >> $dbgfile
+    fi
+}
+
+
+#
+# Create a temporary file
+#
+make_temp_file() {
+  TMPFILE=`mktemp @working_dir@/mtx.XXXXXXXXXX`
+  if test x${TMPFILE} = x; then
+     TMPFILE="@working_dir@/mtx.$$"
+     if test -f ${TMPFILE}; then
+	echo "Temp file security problem on: ${TMPFILE}"
+	exit 1
+     fi
+  fi
+}
 
 #
 # The purpose of this function to wait a maximum 
@@ -46,113 +102,116 @@ TMPDIR=@working_dir@
 # Note, this is very system dependent, so if you are
 #   not running on Linux, you will probably need to
 #   re-write it, or at least change the grep target.
+#   We've attempted to get the appropriate OS grep targets
+#   in the code at the top of this script.
 #
 wait_for_drive() {
   i=0 
   while [ $i -le 300 ]; do  # Wait max 300 seconds
-    if mt -f $1 status | grep ONLINE  >/dev/null 2>&1; then
+    if mt -f $1 status | grep ${ready}	>/dev/null 2>&1; then
       break
     fi
-#   echo "Device $1 - not ready, retrying..."
+    debug "Device $1 - not ready, retrying..."
     sleep 1
     i=`expr $i + 1`
   done
 }
 
+# check parameter count on commandline
+#
+check_parm_count() {
+    pCount=$1
+    pCountNeed=$2
+    if test $pCount -lt $pCountNeed; then
+	echo "usage: mtx-changer ctl-device command [slot archive-device drive-index]"
+	echo "	Insufficient number of arguments arguments given."
+	if test $pCount -lt 2; then
+	    echo "  Mimimum usage is first two arguments ..."
+	else
+	    echo "  Command expected $pCountNeed arguments"
+	fi
+	exit 1
+    fi
+}
+
+# Check for special cases where only 2 arguments are needed, 
+#  all others are a minimum of 5
+#
+case $2 in
+    list)
+	check_parm_count $# 2
+	;;
+    slots)
+	check_parm_count $# 2
+	;;
+    *)
+	check_parm_count $# 5
+	;;
+esac
 
-if test $# -lt 2 ; then
-  echo "usage: mtx-changer ctl-device command slot archive-device drive"
-  echo "  Insufficient number of arguments arguments given."
-  echo "  Mimimum usage is first two arguments ..."
-  exit 1
-fi
 
 # Setup arguments
 ctl=$1
 cmd="$2"
 slot=$3
 device=$4
-# If drive not given, default to 0
-if test $# = 5 ; then
-  drive=$5
-else
-  drive=0
-fi
-
-#
-# Check for special cases where only 2 arguments are needed, 
-#  all others are a minimum of 3
-case $cmd in
-   loaded)
-     ;;
-   unload)
-     ;;
-   list)
-     ;;
-   slots)
-     ;;
-   *)
-     if test $# -lt 3; then
-	echo "usage: mtx-changer ctl-device command slot archive-device drive"
-	echo "	Insufficient number of arguments arguments given."
-	echo "	Mimimum usage is first three arguments ..."
-	exit 1
-     fi
-     ;;
-esac
+drive=$5
 
+debug "Parms: $ctl $cmd $slot $device $drive"
 
 case $cmd in 
    unload)
-#     echo "Doing mtx -f $ctl unload $slot $drive"
+      debug "Doing mtx -f $ctl unload $slot $drive"
 #
 # enable the following line if you need to eject the cartridge
 #     mt -f $device offline
-      if test x$slot = x; then
-	 ${MTX} -f $ctl unload
-      else
-	 ${MTX} -f $ctl unload $slot $drive
-      fi
+#     sleep 10
+      ${MTX} -f $ctl unload $slot $drive
       ;;
 
    load)
-#     echo "Doing mtx -f $ctl load $slot $drive"
+      debug "Doing mtx -f $ctl load $slot $drive"
       ${MTX} -f $ctl load $slot $drive
       rtn=$?
 #
 # Increase the sleep time if you have a slow device
 # or remove the sleep and add the following:
-#     wait_for_drive $device
-      sleep 15
+#     sleep 15
+      wait_for_drive $device
       exit $rtn
       ;;
 
    list) 
-#     echo "Doing mtx -f $ctl -- to list volumes"
-      ${MTX} -f $ctl status >${TMPDIR}/mtx.$$
+      debug "Doing mtx -f $ctl -- to list volumes"
+      make_temp_file
+# Enable the following if you are using barcodes and need an inventory
+#     ${MTX} -f $ctl inventory
+      ${MTX} -f $ctl status >${TMPFILE}
       rtn=$?
-      cat ${TMPDIR}/mtx.$$ | grep " *Storage Element [0-9]*:.*Full" | awk "{print \$3 \$4}" | sed "s/Full *\(:VolumeTag=\)*//"
-      cat ${TMPDIR}/mtx.$$ | grep "^Data Transfer Element [0-9]*:Full (Storage Element [0-9]" | awk '{printf "%s:%s\n",$7,$10}'
-      rm -f ${TMPDIR}/mtx.$$ 2>&1 >/dev/null
+      cat ${TMPFILE} | grep " Storage Element [0-9]*:.*Full" | awk "{print \$3 \$4}" | sed "s/Full *\(:VolumeTag=\)*//"
 #
 # If you have a VXA PacketLoader and the above does not work, try
 #  turning it off and enabling the following line.
-#     ${MTX} -f $ctl status | grep " *Storage Element [0-9]*:.*Full" | sed "s/*Storage Element //" | sed "s/Full :VolumeTag=//"
+#     cat ${TMPFILE} | grep " *Storage Element [0-9]*:.*Full" | sed "s/ Storage Element //" | sed "s/Full :VolumeTag=//"
+#
+      cat ${TMPFILE} | grep "^Data Transfer Element [0-9]*:Full (Storage Element [0-9]" | awk '{printf "%s:%s\n",$7,$10}'
+      rm -f ${TMPFILE} >/dev/null 2>&1
       exit $rtn
       ;;
 
    loaded)
-#     echo "Doing mtx -f $ctl $drive -- to find what is loaded"
-      ${MTX} -f $ctl status >${TMPDIR}/mtx.$$
+      debug "Doing mtx -f $ctl $drive -- to find what is loaded"
+      make_temp_file
+      ${MTX} -f $ctl status >${TMPFILE}
       rtn=$?
-      cat ${TMPDIR}/mtx.$$ | grep "^Data Transfer Element $drive:Full" | awk "{print \$7}"
-      cat ${TMPDIR}/mtx.$$ | grep "^Data Transfer Element $drive:Empty" | awk "{print 0}"
-      rm -f ${TMPDIR}/mtx.$$ 2>&1 >/dev/null
+      cat ${TMPFILE} | grep "^Data Transfer Element $drive:Full" | awk "{print \$7}"
+      cat ${TMPFILE} | grep "^Data Transfer Element $drive:Empty" | awk "{print 0}"
+      rm -f ${TMPFILE} >/dev/null 2>&1
       exit $rtn
       ;;
 
    slots)
-#     echo "Doing mtx -f $ctl -- to get count of slots"
+      debug "Doing mtx -f $ctl -- to get count of slots"
       ${MTX} -f $ctl status | grep " *Storage Changer" | awk "{print \$5}"
       ;;
 esac