git.gag.com Git - debian/amanda/blob - changer-src/chg-mtx.sh.in

   1 #!@SHELL@
   2 #
   3 # Exit Status:
   4 # 0 Alles Ok
   5 # 1 Illegal Request
   6 # 2 Fatal Error
   7 #
   8
   9 # try to hit all the possibilities here
  10 prefix=@prefix@
  11 exec_prefix=@exec_prefix@
  12 sbindir=@sbindir@
  13 libexecdir=@libexecdir@
  14
  15 PATH=$sbindir:$libexecdir:/usr/bin:/bin:/usr/sbin:/sbin:/usr/ucb:/usr/local/bin
  16 export PATH
  17
  18 if [ -d "@AMANDA_DBGDIR@" ]; then
  19         logfile=@AMANDA_DBGDIR@/changer.debug
  20 else
  21         logfile=/dev/null
  22 fi
  23
  24 USE_VERSION_SUFFIXES="@USE_VERSION_SUFFIXES@"
  25 if test "$USE_VERSION_SUFFIXES" = "yes"; then
  26         SUF="-@VERSION@"
  27 else
  28         SUF=
  29 fi
  30
  31 myname=$0
  32
  33 tape=`amgetconf$SUF tapedev`
  34 TAPE=`amgetconf$SUF changerdev`; export TAPE # for mtx command
  35 if [ "$tape" = "/dev/null" -o "$TAPE" = "/dev/null" ]; then
  36   echo "Both tapedev and changerdev must be specified in config file";
  37   exit 2;
  38 fi
  39
  40 MTX=@MTX@
  41
  42 if [ -x $sbindir/ammt$SUF ]; then
  43         MT=$sbindir/ammt$SUF
  44         MTF=-f
  45 elif [ -x "@MT@" ]; then
  46         MT=@MT@
  47         MTF=@MT_FILE_FLAG@
  48 else
  49         answer="<none> $myname: mt program not found"
  50         code=1
  51         echo "Exit -> $answer" >> $logfile
  52         echo "$answer"
  53         exit $code
  54 fi
  55 echo MT "->" $MT $MTF >> $logfile
  56
  57 if [ -x $sbindir/amdd$SUF ]; then
  58         DD=$sbindir/amdd$SUF
  59 elif [ -x "@DD@" ]; then
  60         DD=@DD@
  61 else
  62         answer="<none> $myname: dd program not found"
  63         code=1
  64         echo "Exit -> $answer" >> $logfile
  65         echo "$answer"
  66         exit $code
  67 fi
  68 echo DD "->" $DD >> $logfile
  69
  70 firstslot=1
  71 lastslot=5
  72 # counted from 1 !!!
  73 cleanslot=6
  74
  75 changerfile=`amgetconf$SUF changerfile`
  76
  77 cleanfile=$changerfile-clean
  78 accessfile=$changerfile-access
  79 [ ! -f $cleanfile ] && echo 0 > $cleanfile
  80 [ ! -f $accessfile ] && echo 0 > $accessfile
  81 cleancount=`cat $cleanfile`
  82 accesscount=`cat $accessfile`
  83 #
  84
  85 readstatus() {
  86   used=`$MTX -s |
  87     sed -n 's/Drive: No tape Loaded/-1/p;s/Drive: tape \(.\) loaded/\1/p'`
  88
  89   if [ -z "$used" ]; then
  90     used="-1";
  91   fi
  92 }
  93
  94
  95 eject() {
  96   readstatus
  97   if [ $used -gt 0 ];then
  98     $MTX -u $used
  99     answer="0 $tape"
 100     code=0
 101     echo "Exit -> $answer" >> $logfile
 102     echo "$answer"
 103     exit $code
 104   else
 105     answer="<none> $myname: Drive was not loaded"
 106     code=1
 107     echo "Exit -> $answer" >> $logfile
 108     echo "$answer"
 109     exit $code
 110   fi
 111 }
 112
 113 reset() {
 114   readstatus
 115   if [ $used -gt 0 ];then
 116     $MTX -u $used
 117   fi
 118   res=`$MTX -l 1`
 119   if [ $? -eq 0 ];then
 120     answer="1 $tape"
 121     code=0
 122     echo "Exit -> $answer" >> $logfile
 123     echo "$answer"
 124     exit $code
 125   else
 126     answer="1 $res"
 127     code=1
 128     echo "Exit -> $answer" >> $logfile
 129     echo "$answer"
 130     exit $code
 131   fi
 132 }
 133 #
 134 #
 135 loadslot() {
 136   readstatus
 137   echo "     -> loaded $used" >> $logfile
 138   whichslot=$1
 139   case $whichslot in
 140     current)
 141              if [ $used -lt 0 ];then
 142                $MTX -l 1
 143                used=1
 144              fi
 145              answer="$used $tape"
 146              code=0
 147              echo "Exit -> $answer" >> $logfile
 148              echo "$answer"
 149              exit $code
 150              ;;
 151     next|advance)
 152           load=`expr $used + 1`
 153           [ $load -gt $lastslot ] && load=$firstslot
 154           ;;
 155     prev)
 156           load=`expr $used - 1`
 157           [ $load -lt $firstslot ] && load=$lastslot
 158           ;;
 159     first)
 160           load=$firstslot
 161           ;;
 162     last)
 163           load=$lastslot
 164           ;;
 165     [$firstslot-$lastslot])
 166           load=$1
 167           ;;
 168     clean)
 169           load=$cleanslot
 170           ;;
 171     *)
 172        answer="<none> $myname: illegal request: \"$whichslot\""
 173        code=1
 174        echo "Exit -> $answer" >> $logfile
 175        echo "$answer"
 176        exit $code
 177        ;;
 178     esac
 179
 180     if [ $load = $used ]; then
 181         answer="$used $tape"
 182         code=0
 183         echo "Exit -> $answer" >> $logfile
 184         echo "$answer"
 185         exit $code
 186     fi
 187
 188     if [ $load = $cleanslot ]; then
 189         expr $cleancount + 1 > $cleanfile
 190         echo 0 > $accessfile
 191     else
 192         expr $accesscount + 1 > $accessfile
 193         if [ $accesscount -gt 9 ]; then
 194                 $myname -slot clean >/dev/null
 195         fi
 196     fi
 197
 198     # Slot 6 might contain an ordinary tape rather than a cleaning
 199     # tape. A cleaning tape auto-ejects; an ordinary tape does not.
 200     # We therefore have to read the status again to check what
 201     # actually happened.
 202     readstatus
 203
 204
 205     if [ $used -gt 0 ];then
 206       echo "     -> unload $used" >> $logfile
 207       res=`$MTX -u $used`
 208       status=$?
 209       echo "     -> status $status" >> $logfile
 210       echo "     -> res    $res" >> $logfile
 211       if [ $status -ne 0 ];then
 212         answer="<none> $myname: $res"
 213         code=2
 214         echo "Exit -> $answer" >> $logfile
 215         echo "$answer"
 216         exit $code
 217       fi
 218     fi
 219     if [ $whichslot = advance ];then
 220       answer="$load /dev/null"
 221       code=0
 222       echo "Exit -> $answer" >> $logfile
 223       echo "$answer"
 224       exit $code
 225     fi
 226     echo "     -> load   $load" >> $logfile
 227     res=`$MTX -l $load`
 228     status=$?
 229     echo "     -> status $status" >> $logfile
 230     echo "     -> res    $res" >> $logfile
 231     if [ $status -eq 0 ];then
 232       echo "     -> rew $load" >> $logfile
 233       $MT $MTF $tape rewind
 234       $DD if=$tape bs=32k count=1 >> $logfile 2>&1
 235       answer="$load $tape"
 236       code=0
 237     else
 238       answer="$load $res"
 239       code=2
 240     fi
 241     echo "Exit -> $answer" >> $logfile
 242     echo "$answer"
 243     exit $code
 244 }
 245 #
 246 info() {
 247   readstatus
 248   echo "     -> info   $used" >> $logfile
 249   if [ $used -lt 0 ];then
 250     used=0
 251   fi
 252   answer="$used $lastslot 1"
 253   code=0
 254   echo "Exit -> $answer" >> $logfile
 255   echo "$answer"
 256   exit $code
 257 }
 258 #
 259 echo Args "->" "$@" >> $logfile
 260 while [ $# -ge 1 ];do
 261   case $1 in
 262     -slot)
 263            shift
 264            loadslot $*
 265            ;;
 266     -info)
 267            shift
 268            info
 269            ;;
 270     -reset)
 271             shift
 272             reset
 273             ;;
 274     -eject)
 275             shift
 276             eject
 277             ;;
 278     *)
 279        answer="<none> $myname: Unknown option $1"
 280        code=2
 281        echo "Exit -> $answer" >> $logfile
 282        echo "$answer"
 283        exit $code
 284        ;;
 285   esac
 286 done