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 $DAEMON || return 1
  68     return 0
  69 }
  70
  71 start_server() {
  72     if [ ! -d /var/run/openvswitch ]; then
  73         install -d -m 755 -o root -g root /var/run/openvswitch
  74     fi
  75
  76     PYTHONPATH=/usr/share/openvswitch/python \
  77            /usr/share/openvswitch/scripts/ovs-monitor-ipsec \
  78            --pidfile-name=$PIDFILE --detach --monitor \
  79            unix:/var/run/openvswitch/db.sock
  80
  81     return 0
  82 }
  83
  84 stop_server() {
  85     if [ -e $PIDFILE ]; then
  86         kill `cat $PIDFILE`
  87     fi
  88
  89     return 0
  90 }
  91
  92 force_stop() {
  93 # Force the process to die killing it manually
  94     [ ! -e "$PIDFILE" ] && return
  95     if running ; then
  96         kill -15 $pid
  97         # Is it really dead?
  98         sleep "$DODTIME"
  99         if running ; then
 100             kill -9 $pid
 101             sleep "$DODTIME"
 102             if running ; then
 103                 echo "Cannot kill $NAME (pid=$pid)!"
 104                 exit 1
 105             fi
 106         fi
 107     fi
 108     rm -f $PIDFILE
 109 }
 110
 111
 112 case "$1" in
 113   start)
 114         log_daemon_msg "Starting $NAME"
 115         # Check if it's running first
 116         if running ;  then
 117             log_progress_msg "apparently already running"
 118             log_end_msg 0
 119             exit 0
 120         fi
 121         if start_server && running ;  then
 122             # It's ok, the server started and is running
 123             log_end_msg 0
 124         else
 125             # Either we could not start it or it is not running
 126             # after we did
 127             # NOTE: Some servers might die some time after they start,
 128             # this code does not try to detect this and might give
 129             # a false positive (use 'status' for that)
 130             log_end_msg 1
 131         fi
 132         ;;
 133   stop)
 134         log_daemon_msg "Stopping $NAME"
 135         if running ; then
 136             # Only stop the server if we see it running
 137             stop_server
 138             log_end_msg $?
 139         else
 140             # If it's not running don't do anything
 141             log_progress_msg "apparently not running"
 142             log_end_msg 0
 143             exit 0
 144         fi
 145         ;;
 146   force-stop)
 147         # First try to stop gracefully the program
 148         $0 stop
 149         if running; then
 150             # If it's still running try to kill it more forcefully
 151             log_daemon_msg "Stopping (force) $NAME"
 152             force_stop
 153             log_end_msg $?
 154         fi
 155         ;;
 156   restart|force-reload)
 157         log_daemon_msg "Restarting $NAME"
 158         stop_server
 159         # Wait some sensible amount, some server need this
 160         [ -n "$DODTIME" ] && sleep $DODTIME
 161         start_server
 162         running
 163         log_end_msg $?
 164         ;;
 165   status)
 166         log_daemon_msg "Checking status of $NAME"
 167         if running ;  then
 168             log_progress_msg "running"
 169             log_end_msg 0
 170         else
 171             log_progress_msg "apparently not running"
 172             log_end_msg 1
 173             exit 1
 174         fi
 175         ;;
 176   # Use this if the daemon cannot reload
 177   reload)
 178         log_warning_msg "Reloading $NAME daemon: not implemented, as the daemon"
 179         log_warning_msg "cannot re-read the config file (use restart)."
 180         ;;
 181   *)
 182         N=/etc/init.d/openvswitch-ipsec
 183         echo "Usage: $N {start|stop|force-stop|restart|force-reload|status}" >&2
 184         exit 1
 185         ;;
 186 esac
 187
 188 exit 0