debian/openvswitch-ipsec.init

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2007, 2009 Javier Fernandez-Sanguino <jfs@debian.org>
   4 #
   5 # This is free software; you may redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as
   7 # published by the Free Software Foundation; either version 2,
   8 # or (at your option) any later version.
   9 #
  10 # This is distributed in the hope that it will be useful, but
  11 # WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License with
  16 # the Debian operating system, in /usr/share/common-licenses/GPL;  if
  17 # not, write to the Free Software Foundation, Inc., 59 Temple Place,
  18 # Suite 330, Boston, MA 02111-1307 USA
  19 #
  20 ### BEGIN INIT INFO
  21 # Provides:          openvswitch-ipsec
  22 # Required-Start:    $network $local_fs $remote_fs
  23 # Required-Stop:     $remote_fs
  24 # Default-Start:     2 3 4 5
  25 # Default-Stop:      0 1 6
  26 # Short-Description: Open vSwitch GRE-over-IPsec daemon
  27 ### END INIT INFO
  28
  29 PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
  30
  31 DAEMON=/usr/share/openvswitch/scripts/ovs-monitor-ipsec # Daemon's location
  32 NAME=ovs-monitor-ipsec          # Introduce the short server's name here
  33 LOGDIR=/var/log/openvswitch     # Log directory to use
  34
  35 PIDFILE=/var/run/openvswitch/$NAME.pid
  36
  37 test -x $DAEMON || exit 0
  38
  39 . /lib/lsb/init-functions
  40
  41 DODTIME=10              # Time to wait for the server to die, in seconds
  42                         # If this value is set too low you might not
  43                         # let some servers to die gracefully and
  44                         # 'restart' will not work
  45
  46 set -e
  47
  48 running_pid() {
  49 # Check if a given process pid's cmdline matches a given name
  50     pid=$1
  51     name=$2
  52     [ -z "$pid" ] && return 1
  53     [ ! -d /proc/$pid ] &&  return 1
  54     cmd=`cat /proc/$pid/cmdline | tr "\000" " "|cut -d " " -f 2`
  55     # Is this the expected server
  56     [ "$cmd" != "$name" ] &&  return 1
  57     return 0
  58 }
  59
  60 running() {
  61 # Check if the process is running looking at /proc
  62 # (works for all users)
  63
  64     # No pidfile, probably no daemon present
  65     [ ! -f "$PIDFILE" ] && return 1
  66     pid=`cat $PIDFILE`
  67     running_pid $pid $DAEMON || return 1
  68     return 0
  69 }
  70
  71 start_server() {
  72     PYTHONPATH=/usr/share/openvswitch/python \
  73            /usr/share/openvswitch/scripts/ovs-monitor-ipsec \
  74            --pidfile-name=$PIDFILE --detach --monitor \
  75            unix:/var/run/openvswitch/db.sock
  76
  77     return 0
  78 }
  79
  80 stop_server() {
  81     if [ -e $PIDFILE ]; then
  82         kill `cat $PIDFILE`
  83     fi
  84
  85     return 0
  86 }
  87
  88 force_stop() {
  89 # Force the process to die killing it manually
  90     [ ! -e "$PIDFILE" ] && return
  91     if running ; then
  92         kill -15 $pid
  93         # Is it really dead?
  94         sleep "$DODTIME"
  95         if running ; then
  96             kill -9 $pid
  97             sleep "$DODTIME"
  98             if running ; then
  99                 echo "Cannot kill $NAME (pid=$pid)!"
 100                 exit 1
 101             fi
 102         fi
 103     fi
 104     rm -f $PIDFILE
 105 }
 106
 107
 108 case "$1" in
 109   start)
 110         log_daemon_msg "Starting $NAME"
 111         # Check if it's running first
 112         if running ;  then
 113             log_progress_msg "apparently already running"
 114             log_end_msg 0
 115             exit 0
 116         fi
 117         if start_server && running ;  then
 118             # It's ok, the server started and is running
 119             log_end_msg 0
 120         else
 121             # Either we could not start it or it is not running
 122             # after we did
 123             # NOTE: Some servers might die some time after they start,
 124             # this code does not try to detect this and might give
 125             # a false positive (use 'status' for that)
 126             log_end_msg 1
 127         fi
 128         ;;
 129   stop)
 130         log_daemon_msg "Stopping $NAME"
 131         if running ; then
 132             # Only stop the server if we see it running
 133             stop_server
 134             log_end_msg $?
 135         else
 136             # If it's not running don't do anything
 137             log_progress_msg "apparently not running"
 138             log_end_msg 0
 139             exit 0
 140         fi
 141         ;;
 142   force-stop)
 143         # First try to stop gracefully the program
 144         $0 stop
 145         if running; then
 146             # If it's still running try to kill it more forcefully
 147             log_daemon_msg "Stopping (force) $NAME"
 148             force_stop
 149             log_end_msg $?
 150         fi
 151         ;;
 152   restart|force-reload)
 153         log_daemon_msg "Restarting $NAME"
 154         stop_server
 155         # Wait some sensible amount, some server need this
 156         [ -n "$DODTIME" ] && sleep $DODTIME
 157         start_server
 158         running
 159         log_end_msg $?
 160         ;;
 161   status)
 162         log_daemon_msg "Checking status of $NAME"
 163         if running ;  then
 164             log_progress_msg "running"
 165             log_end_msg 0
 166         else
 167             log_progress_msg "apparently not running"
 168             log_end_msg 1
 169             exit 1
 170         fi
 171         ;;
 172   # Use this if the daemon cannot reload
 173   reload)
 174         log_warning_msg "Reloading $NAME daemon: not implemented, as the daemon"
 175         log_warning_msg "cannot re-read the config file (use restart)."
 176         ;;
 177   *)
 178         N=/etc/init.d/openvswitch-ipsec
 179         echo "Usage: $N {start|stop|force-stop|restart|force-reload|status}" >&2
 180         exit 1
 181         ;;
 182 esac
 183
 184 exit 0