usr/src/cmd/power/svc-power

   1 #!/bin/sh
   2 #
   3 # CDDL HEADER START
   4 #
   5 # The contents of this file are subject to the terms of the
   6 # Common Development and Distribution License (the "License").
   7 # You may not use this file except in compliance with the License.
   8 #
   9 # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10 # or http://www.opensolaris.org/os/licensing.
  11 # See the License for the specific language governing permissions
  12 # and limitations under the License.
  13 #
  14 # When distributing Covered Code, include this CDDL HEADER in each
  15 # file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16 # If applicable, add the following below this CDDL HEADER, with the
  17 # fields enclosed by brackets "[]" replaced with your own identifying
  18 # information: Portions Copyright [yyyy] [name of copyright owner]
  19 #
  20 # CDDL HEADER END
  21 #
  22 #
  23 # Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  24 # Use is subject to license terms.
  25 #
  26 #ident  "%Z%%M% %I%     %E% SMI"
  27 #
  28 # If the /etc/power.conf file does not have a "statefile" entry
  29 # to specify the pathname of the cpr statefile, build one and
  30 # add the line.  We choose the largest of the standard Sun partitions.
  31
  32 init_statefile_entry() {
  33         [ ! -f /etc/power.conf -o ! -w /etc/power.conf ] && return
  34
  35         # Whitespace regular expression below is [<TAB><SPACE>]
  36
  37         pattern="^[     ]*statefile[     ][      ]*/"
  38         [ `/usr/bin/grep -c "$pattern" /etc/power.conf` -ge 1 ] && return
  39
  40         avail=0                 # Free blocks in current filesystem
  41         max_avail=0             # Most available free blocks encountered so far
  42         statefile=.CPR          # Default cpr statefile name
  43
  44         # Remove old statefile (if any) from root
  45         [ -f /$statefile ] && /usr/bin/rm -f /$statefile
  46
  47         /usr/bin/df -k -F ufs |
  48         (
  49                 read line       # Skip past the header line of the df output
  50
  51                 while read device kbytes used avail capacity filesys; do
  52                         case $filesys in
  53                         /|/usr|/var|/export/home)
  54                                 if [ $avail -gt $max_avail ]; then
  55                                         max_avail=$avail
  56                                         winner=$filesys
  57                                 fi
  58                                 ;;
  59                         esac
  60                 done
  61
  62                 if [ $max_avail -gt 0 ]; then
  63                         echo "statefile         ${winner}/${statefile}" \
  64                             >>/etc/power.conf
  65                 fi
  66
  67                 return
  68         )
  69         if [ $max_avail -eq 0 ]; then
  70                 if [ X`df -n / | awk '{print $3}'` != "Xzfs" ] ; then
  71                         return
  72                 fi
  73                 rootpool=`zfs mount | grep ' \/$' | awk '{print $1 }' |\
  74                     sed 's/\/.*$//'`
  75                 if [ X$rootpool = "X" ] || \
  76                     [ ! -L /dev/zvol/dsk/$rootpool/dump ]; then
  77                         return
  78                 fi
  79                 echo "statefile /dev/zvol/dsk/$rootpool/dump" \
  80                         >> /etc/power.conf
  81         fi
  82 }
  83
  84 case "$1" in
  85 'start')
  86         /usr/sbin/uadmin 3 2 2>/dev/null
  87         if [ $? -eq 0 ]; then
  88                 init_statefile_entry
  89         fi
  90
  91         if [ -x /usr/sbin/pmconfig -a -r /etc/power.conf ]; then
  92                 /usr/sbin/pmconfig >/dev/console 2>&1
  93         fi
  94         ;;
  95
  96 'stop')
  97         if [ -x /usr/sbin/pmconfig ]; then
  98                 /usr/sbin/pmconfig -r >/dev/null 2>/dev/null
  99         fi
 100         ;;
 101
 102 *)
 103         echo "Usage: $0 { start | stop }"
 104         exit 1
 105         ;;
 106 esac
 107 exit 0