libexec/rc/rc.d/watchdogd

   1 #!/bin/sh
   2
   3 # Copyright (c) 2003  Sean M. Kelly <smkelly@FreeBSD.org>
   4 # All rights reserved.
   5 #
   6 # Redistribution and use in source and binary forms, with or without
   7 # modification, are permitted provided that the following conditions
   8 # are met:
   9 # 1. Redistributions of source code must retain the above copyright
  10 #    notice, this list of conditions and the following disclaimer.
  11 # 2. Redistributions in binary form must reproduce the above copyright
  12 #    notice, this list of conditions and the following disclaimer in the
  13 #    documentation and/or other materials provided with the distribution.
  14 #
  15 # THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  16 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  18 # ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  19 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  20 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  21 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  22 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  23 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  24 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  25 # SUCH DAMAGE.
  26 #
  27 # $FreeBSD$
  28 #
  29
  30 # PROVIDE: watchdogd
  31 # REQUIRE: FILESYSTEMS syslogd
  32 # KEYWORD: nojail shutdown
  33
  34 . /etc/rc.subr
  35
  36 name="watchdogd"
  37 desc="Watchdog daemon"
  38 rcvar="watchdogd_enable"
  39 command="/usr/sbin/${name}"
  40 pidfile="/var/run/${name}.pid"
  41 start_precmd="watchdogd_prestart"
  42 stop_precmd="watchdogd_prestop"
  43 stop_postcmd="watchdogd_poststop"
  44 watchdog_command="/usr/sbin/watchdog"
  45
  46 watchdogd_prestart()
  47 {
  48         if [ -n "${watchdogd_timeout}" ] ; then
  49                 rc_flags="${rc_flags} -t ${watchdogd_timeout}"
  50         fi
  51         if [ -n "$watchdogd_shutdown_timeout" ] ; then
  52                 rc_flags="${rc_flags} -x ${watchdogd_shutdown_timeout}"
  53         fi
  54         return 0
  55 }
  56
  57 watchdogd_prestop()
  58 {
  59         sig_stop="${watchdogd_sig_stop:-TERM}"
  60 }
  61
  62 watchdogd_poststop()
  63 {
  64         if [ ${watchdogd_shutdown_timeout:-0} -gt 0 ] ; then
  65                 case "${rc_shutdown}" in
  66                 "reboot")
  67                         info "watchdog timer is set to" \
  68                                 ${watchdogd_shutdown_timeout} "before shutdown"
  69                         return 0
  70                         ;;
  71                 "single")
  72                         info "watchdog timer is disabled before going to" \
  73                                 "single user mode"
  74                         ${watchdog_command} -t 0
  75                         ;;
  76                 "")
  77                         info "watchdog timer is disabled after administrative" \
  78                                 "${name} stop"
  79                         ${watchdog_command} -t 0
  80                         ;;
  81                 *)
  82                         warn "unknown shutdown mode '${rc_shutdown}'"
  83                         warn "watchdog timer is set to ${watchdogd_shutdown_timeout}"
  84                         return 0
  85                         ;;
  86                 esac
  87         fi
  88         return 0
  89 }
  90
  91 load_rc_config $name
  92 run_rc_command "$1"