etc/rc.d/dumpon

   1 #!/bin/sh
   2 #
   3 # $FreeBSD$
   4 #
   5
   6 # PROVIDE: dumpon
   7 # REQUIRE: zvol
   8 # BEFORE: disks
   9 # KEYWORD: nojail
  10
  11 . /etc/rc.subr
  12
  13 name="dumpon"
  14 start_cmd="dumpon_start"
  15 stop_cmd="dumpon_stop"
  16
  17 dumpon_try()
  18 {
  19         if /sbin/dumpon "${1}" ; then
  20                 # Make a symlink in devfs for savecore
  21                 ln -fs "${1}" /dev/dumpdev
  22                 return 0
  23         fi
  24         warn "unable to specify $1 as a dump device"
  25         return 1
  26 }
  27
  28 dumpon_start()
  29 {
  30         # Enable dumpdev so that savecore can see it. Enable it
  31         # early so a crash early in the boot process can be caught.
  32         #
  33         case ${dumpdev} in
  34         [Nn][Oo] | '')
  35                 ;;
  36         [Aa][Uu][Tt][Oo])
  37                 dev=$(/bin/kenv -q dumpdev)
  38                 if [ -n "${dev}" ] ; then
  39                         dumpon_try "${dev}"
  40                         return $?
  41                 fi
  42                 while read dev mp type more ; do
  43                         [ "${type}" = "swap" ] || continue
  44                         [ -c "${dev}" ] || continue
  45                         dumpon_try "${dev}" 2>/dev/null && return 0
  46                 done </etc/fstab
  47                 echo "No suitable dump device was found." 1>&2
  48                 return 1
  49                 ;;
  50         *)
  51                 dumpon_try "${dumpdev}"
  52                 ;;
  53         esac
  54 }
  55
  56 dumpon_stop()
  57 {
  58         case ${dumpdev} in
  59         [Nn][Oo] | '')
  60                 ;;
  61         *)
  62                 rm -f /dev/dumpdev
  63                 /sbin/dumpon -v off
  64                 ;;
  65         esac
  66 }
  67
  68 load_rc_config $name
  69 run_rc_command "$1"