util-linux-blockdev.init

   1 #!/bin/sh
   2 #
   3 # blockdev              This shell script takes care of starting and stopping blockdev.
   4 #
   5 # chkconfig:    2345 01 99
   6 # description:  blockdev
   7 #
   8 # processname:  blockdev
   9 # config:
  10 # pidfile:
  11
  12 [ -f /etc/sysconfig/blockdev ] || exit 0
  13
  14 blockdevs=$(awk -F= '!/^#/ && !/^$/ {if ($2) print $1}' /etc/sysconfig/blockdev)
  15 if [ -z "$blockdevs" ]; then
  16         case "$1" in
  17         start|stop|restart|force-reload)
  18                 exit 0
  19                 ;;
  20         esac
  21 fi
  22
  23 # Source function library.
  24 . /etc/rc.d/init.d/functions
  25
  26 # Source blockdev configuration.
  27 . /etc/sysconfig/blockdev
  28
  29 start() {
  30         if [ -f /var/lock/subsys/blockdev ]; then
  31                 msg_already_running blockdev
  32                 return
  33         fi
  34
  35         local var realdrive drive PARAMS
  36         for var in $blockdevs; do
  37                 realdrive=
  38                 drive=${var#BLOCKDEV_}
  39                 if [ -d "/sys/block/${drive}" -a -e "/dev/${drive}" ]; then
  40                         realdrive="/dev/${drive}"
  41                 elif [ -e "/dev/mapper/${drive}" ]; then
  42                         realdrive="/dev/mapper/${drive}"
  43                 elif drive=$(echo $drive | tr _ -) && [ -d "/sys/block/${drive}" -a -e "/dev/${drive}" ]; then
  44                         realdrive="/dev/${drive}"
  45                 elif [ -e "/dev/mapper/${drive}" ]; then
  46                         realdrive="/dev/mapper/${drive}"
  47                 fi
  48
  49                 if [ -n "$realdrive" ]; then
  50                         eval PARAMS=\$$var
  51                         if [ -n "${PARAMS}" ]; then
  52                                 show "Setting parameters for block drive %s (%s)" "$drive" "$PARAMS"
  53                                 busy
  54                                 /sbin/blockdev ${PARAMS} $realdrive
  55                                 ok
  56                         fi
  57                 fi
  58         done
  59         # TODO: retval not really handled here
  60         RETVAL=$?
  61         [ $RETVAL -eq 0 ] && touch /var/lock/subsys/blockdev
  62 }
  63
  64 stop() {
  65         # Stop daemons.
  66         if [ ! -f /var/lock/subsys/blockdev ]; then
  67                 msg_not_running blockdev
  68                 return
  69         fi
  70         rm -f /var/lock/subsys/blockdev
  71 }
  72
  73 status() {
  74         if [ -z "$blockdevs" ]; then
  75                 echo "no devices configured for blockdev"
  76                 RETVAL=1
  77                 return
  78         fi
  79
  80         echo "blockdev configured for:"
  81         local var drive realdrive PARAMS
  82         for var in $blockdevs; do
  83                 drive=${var#BLOCKDEV_}
  84                 echo -n "- $drive: "
  85
  86                 realdrive=
  87                 if [ -d "/sys/block/${drive}" -a -e "/dev/${drive}" ]; then
  88                         realdrive="/dev/${drive}"
  89                 elif [ -e "/dev/mapper/${drive}" ]; then
  90                         realdrive="/dev/mapper/${drive}"
  91                 elif drive=$(echo $drive | tr _ -) && [ -d "/sys/block/${drive}" -a -e "/dev/${drive}" ]; then
  92                         realdrive="/dev/${drive}"
  93                 elif [ -e "/dev/mapper/${drive}" ]; then
  94                         realdrive="/dev/mapper/${drive}"
  95                 fi
  96
  97                 eval PARAMS=\$$var
  98                 if [ -n "$realdrive" ]; then
  99                         echo "${PARAMS}; device=$realdrive"
 100                 else
 101                         echo "${PARAMS}; device not present"
 102                 fi
 103         done
 104 }
 105
 106 RETVAL=0
 107 # See how we were called.
 108 case "$1" in
 109   start)
 110         start
 111         ;;
 112   stop)
 113         stop
 114         ;;
 115   restart|force-reload)
 116         stop
 117         start
 118         ;;
 119   status)
 120         status
 121         ;;
 122   *)
 123         msg_usage "$0 {start|stop|restart|force-reload|status}"
 124         exit 3
 125 esac
 126
 127 exit $RETVAL