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 if [ -z "$tape" ]; then
  35   echo "<none> tapedev not specified in amanda.conf";
  36   exit 2;
  37 fi
  38
  39 TAPE=`amgetconf$SUF changerdev`; export TAPE # for mtx command
  40 if [ -z "$TAPE" ]; then
  41   echo "<none> changerdev not specified in amanda.conf";
  42   exit 2;
  43 fi
  44
  45 if [ "$tape" = "/dev/null" -o "$TAPE" = "/dev/null" ]; then
  46   echo "<none> Both tapedev and changerdev must be specified in config file";
  47   exit 2;
  48 fi
  49
  50 MTX=@MTX@
  51
  52 if [ -x $sbindir/ammt$SUF ]; then
  53         MT=$sbindir/ammt$SUF
  54         MTF=-f
  55 elif [ -x "@MT@" ]; then
  56         MT=@MT@
  57         MTF=@MT_FILE_FLAG@
  58 else
  59         answer="<none> $myname: mt program not found"
  60         code=1
  61         echo "Exit -> $answer" >> $logfile
  62         echo "$answer"
  63         exit $code
  64 fi
  65 echo MT "->" $MT $MTF >> $logfile
  66
  67 if [ -x $sbindir/amdd$SUF ]; then
  68         DD=$sbindir/amdd$SUF
  69 elif [ -x "@DD@" ]; then
  70         DD=@DD@
  71 else
  72         answer="<none> $myname: dd program not found"
  73         code=1
  74         echo "Exit -> $answer" >> $logfile
  75         echo "$answer"
  76         exit $code
  77 fi
  78 echo DD "->" $DD >> $logfile
  79
  80 firstslot=1
  81 lastslot=5
  82 # counted from 1 !!!
  83 cleanslot=6
  84
  85 changerfile=`amgetconf$SUF changerfile`
  86
  87 cleanfile=$changerfile-clean
  88 accessfile=$changerfile-access
  89 [ ! -f $cleanfile ] && echo 0 > $cleanfile
  90 [ ! -f $accessfile ] && echo 0 > $accessfile
  91 cleancount=`cat $cleanfile`
  92 accesscount=`cat $accessfile`
  93 #
  94
  95 readstatus() {
  96   used=`$MTX -s |
  97     sed -n 's/Drive: No tape Loaded/-1/p;s/Drive: tape \(.\) loaded/\1/p'`
  98
  99   if [ -z "$used" ]; then
 100     used="-1";
 101   fi
 102 }
 103
 104
 105 eject() {
 106   readstatus
 107   if [ $used -gt 0 ];then
 108     $MTX -u $used
 109     answer="0 $tape"
 110     code=0
 111     echo "Exit -> $answer" >> $logfile
 112     echo "$answer"
 113     exit $code
 114   else
 115     answer="<none> $myname: Drive was not loaded"
 116     code=1
 117     echo "Exit -> $answer" >> $logfile
 118     echo "$answer"
 119     exit $code
 120   fi
 121 }
 122
 123 reset() {
 124   readstatus
 125   if [ $used -gt 0 ];then
 126     $MTX -u $used
 127   fi
 128   res=`$MTX -l 1`
 129   if [ $? -eq 0 ];then
 130     answer="1 $tape"
 131     code=0
 132     echo "Exit -> $answer" >> $logfile
 133     echo "$answer"
 134     exit $code
 135   else
 136     answer="1 $res"
 137     code=1
 138     echo "Exit -> $answer" >> $logfile
 139     echo "$answer"
 140     exit $code
 141   fi
 142 }
 143 #
 144 #
 145 loadslot() {
 146   readstatus
 147   echo "     -> loaded $used" >> $logfile
 148   whichslot=$1
 149   case $whichslot in
 150     current)
 151              if [ $used -lt 0 ];then
 152                $MTX -l 1
 153                used=1
 154              fi
 155              answer="$used $tape"
 156              code=0
 157              echo "Exit -> $answer" >> $logfile
 158              echo "$answer"
 159              exit $code
 160              ;;
 161     next|advance)
 162           load=`expr $used + 1`
 163           [ $load -gt $lastslot ] && load=$firstslot
 164           ;;
 165     prev)
 166           load=`expr $used - 1`
 167           [ $load -lt $firstslot ] && load=$lastslot
 168           ;;
 169     first)
 170           load=$firstslot
 171           ;;
 172     last)
 173           load=$lastslot
 174           ;;
 175     [$firstslot-$lastslot])
 176           load=$1
 177           ;;
 178     clean)
 179           load=$cleanslot
 180           ;;
 181     *)
 182        answer="<none> $myname: illegal request: \"$whichslot\""
 183        code=1
 184        echo "Exit -> $answer" >> $logfile
 185        echo "$answer"
 186        exit $code
 187        ;;
 188     esac
 189
 190     if [ $load = $used ]; then
 191         answer="$used $tape"
 192         code=0
 193         echo "Exit -> $answer" >> $logfile
 194         echo "$answer"
 195         exit $code
 196     fi
 197
 198     if [ $load = $cleanslot ]; then
 199         expr $cleancount + 1 > $cleanfile
 200         echo 0 > $accessfile
 201     else
 202         expr $accesscount + 1 > $accessfile
 203         if [ $accesscount -gt 9 ]; then
 204                 $myname -slot clean >/dev/null
 205         fi
 206     fi
 207
 208     # Slot 6 might contain an ordinary tape rather than a cleaning
 209     # tape. A cleaning tape auto-ejects; an ordinary tape does not.
 210     # We therefore have to read the status again to check what
 211     # actually happened.
 212     readstatus
 213
 214
 215     if [ $used -gt 0 ];then
 216       echo "     -> unload $used" >> $logfile
 217       res=`$MTX -u $used`
 218       status=$?
 219       echo "     -> status $status" >> $logfile
 220       echo "     -> res    $res" >> $logfile
 221       if [ $status -ne 0 ];then
 222         answer="<none> $myname: $res"
 223         code=2
 224         echo "Exit -> $answer" >> $logfile
 225         echo "$answer"
 226         exit $code
 227       fi
 228     fi
 229     if [ $whichslot = advance ];then
 230       answer="$load /dev/null"
 231       code=0
 232       echo "Exit -> $answer" >> $logfile
 233       echo "$answer"
 234       exit $code
 235     fi
 236     echo "     -> load   $load" >> $logfile
 237     res=`$MTX -l $load`
 238     status=$?
 239     echo "     -> status $status" >> $logfile
 240     echo "     -> res    $res" >> $logfile
 241     if [ $status -eq 0 ];then
 242       echo "     -> rew $load" >> $logfile
 243       $MT $MTF $tape rewind
 244       $DD if=$tape bs=32k count=1 >> $logfile 2>&1
 245       answer="$load $tape"
 246       code=0
 247     else
 248       answer="$load $res"
 249       code=2
 250     fi
 251     echo "Exit -> $answer" >> $logfile
 252     echo "$answer"
 253     exit $code
 254 }
 255 #
 256 info() {
 257   readstatus
 258   echo "     -> info   $used" >> $logfile
 259   if [ $used -lt 0 ];then
 260     used=0
 261   fi
 262   answer="$used $lastslot 1"
 263   code=0
 264   echo "Exit -> $answer" >> $logfile
 265   echo "$answer"
 266   exit $code
 267 }
 268 #
 269 echo Args "->" "$@" >> $logfile
 270 while [ $# -ge 1 ];do
 271   case $1 in
 272     -slot)
 273            shift
 274            loadslot $*
 275            ;;
 276     -info)
 277            shift
 278            info
 279            ;;
 280     -reset)
 281             shift
 282             reset
 283             ;;
 284     -eject)
 285             shift
 286             eject
 287             ;;
 288     *)
 289        answer="<none> $myname: Unknown option $1"
 290        code=2
 291        echo "Exit -> $answer" >> $logfile
 292        echo "$answer"
 293        exit $code
 294        ;;
 295   esac
 296 done