etc/rc.d/dumpon

   1 #!/bin/sh
   2 #
   3 # $FreeBSD$
   4 #
   5
   6 # PROVIDE: dumpon
   7 # BEFORE: disks
   8 # KEYWORD: nojail
   9
  10 . /etc/rc.subr
  11
  12 name="dumpon"
  13 desc="Dump kernel corefiles from swap to disk"
  14 start_cmd="dumpon_start"
  15 stop_cmd="dumpon_stop"
  16
  17 dumpon_try()
  18 {
  19         if [ -n "${dumppubkey}" ]; then
  20                 /sbin/dumpon -k "${dumppubkey}" "${1}"
  21         else
  22                 /sbin/dumpon "${1}"
  23         fi
  24         if [ $? -eq 0 ]; then
  25                 # Make a symlink in devfs for savecore
  26                 ln -fs "${1}" /dev/dumpdev
  27                 return 0
  28         fi
  29         warn "unable to specify $1 as a dump device"
  30         return 1
  31 }
  32
  33 dumpon_start()
  34 {
  35         # Enable dumpdev so that savecore can see it. Enable it
  36         # early so a crash early in the boot process can be caught.
  37         #
  38         case ${dumpdev} in
  39         [Nn][Oo] | '')
  40                 ;;
  41         [Aa][Uu][Tt][Oo])
  42                 dev=$(/bin/kenv -q dumpdev)
  43                 if [ -n "${dev}" ] ; then
  44                         dumpon_try "${dev}"
  45                         return $?
  46                 fi
  47                 while read dev mp type more ; do
  48                         [ "${type}" = "swap" ] || continue
  49                         [ -c "${dev}" ] || continue
  50                         dumpon_try "${dev}" 2>/dev/null && return 0
  51                 done </etc/fstab
  52                 echo "No suitable dump device was found." 1>&2
  53                 return 1
  54                 ;;
  55         *)
  56                 dumpon_try "${dumpdev}"
  57                 ;;
  58         esac
  59 }
  60
  61 dumpon_stop()
  62 {
  63         case ${dumpdev} in
  64         [Nn][Oo] | '')
  65                 ;;
  66         *)
  67                 rm -f /dev/dumpdev
  68                 /sbin/dumpon -v off
  69                 ;;
  70         esac
  71 }
  72
  73 load_rc_config $name
  74 run_rc_command "$1"