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 openvswitch-switch
  23 # Required-Stop:     $remote_fs
  24 # Default-Start:     2 3 4 5
  25 # Default-Stop:      0 1 6
  26 # Short-Description: Open vSwitch GRE-over-IPsec daemon
  27 # Description:       The ovs-monitor-ipsec script provides support for encrypting GRE
  28 #                    tunnels with IPsec.
  29 ### END INIT INFO
  30
  31 PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
  32
  33 DAEMON=/usr/share/openvswitch/scripts/ovs-monitor-ipsec # Daemon's location
  34 NAME=ovs-monitor-ipsec          # Introduce the short server's name here
  35 LOGDIR=/var/log/openvswitch     # Log directory to use
  36
  37 PIDFILE=/var/run/openvswitch/$NAME.pid
  38
  39 test -x $DAEMON || exit 0
  40
  41 . /lib/lsb/init-functions
  42
  43 DODTIME=10              # Time to wait for the server to die, in seconds
  44                         # If this value is set too low you might not
  45                         # let some servers to die gracefully and
  46                         # 'restart' will not work
  47
  48 set -e
  49
  50 running_pid() {
  51 # Check if a given process pid's cmdline matches a given name
  52     pid=$1
  53     name=$2
  54     [ -z "$pid" ] && return 1
  55     [ ! -d /proc/$pid ] &&  return 1
  56     cmd=`cat /proc/$pid/cmdline | tr "\000" " "|cut -d " " -f 2`
  57     # Is this the expected server
  58     [ "$cmd" != "$name" ] &&  return 1
  59     return 0
  60 }
  61
  62 running() {
  63 # Check if the process is running looking at /proc
  64 # (works for all users)
  65
  66     # No pidfile, probably no daemon present
  67     [ ! -f "$PIDFILE" ] && return 1
  68     pid=`cat $PIDFILE`
  69     running_pid $pid $DAEMON || return 1
  70     return 0
  71 }
  72
  73 start_server() {
  74     if [ ! -d /var/run/openvswitch ]; then
  75         install -d -m 755 -o root -g root /var/run/openvswitch
  76     fi
  77
  78     /usr/share/openvswitch/scripts/ovs-monitor-ipsec \
  79            --pidfile=$PIDFILE --log-file --detach --monitor \
  80            unix:/var/run/openvswitch/db.sock
  81
  82     return 0
  83 }
  84
  85 stop_server() {
  86     if [ -e $PIDFILE ]; then
  87         kill `cat $PIDFILE`
  88     fi
  89
  90     return 0
  91 }
  92
  93 force_stop() {
  94 # Force the process to die killing it manually
  95     [ ! -e "$PIDFILE" ] && return
  96     if running ; then
  97         kill -15 $pid
  98         # Is it really dead?
  99         sleep "$DODTIME"
 100         if running ; then
 101             kill -9 $pid
 102             sleep "$DODTIME"
 103             if running ; then
 104                 echo "Cannot kill $NAME (pid=$pid)!"
 105                 exit 1
 106             fi
 107         fi
 108     fi
 109     rm -f $PIDFILE
 110 }
 111
 112
 113 case "$1" in
 114   start)
 115         log_daemon_msg "Starting $NAME"
 116         # Check if it's running first
 117         if running ;  then
 118             log_progress_msg "apparently already running"
 119             log_end_msg 0
 120             exit 0
 121         fi
 122         if start_server && running ;  then
 123             # It's ok, the server started and is running
 124             log_end_msg 0
 125         else
 126             # Either we could not start it or it is not running
 127             # after we did
 128             # NOTE: Some servers might die some time after they start,
 129             # this code does not try to detect this and might give
 130             # a false positive (use 'status' for that)
 131             log_end_msg 1
 132         fi
 133         ;;
 134   stop)
 135         log_daemon_msg "Stopping $NAME"
 136         if running ; then
 137             # Only stop the server if we see it running
 138             stop_server
 139             log_end_msg $?
 140         else
 141             # If it's not running don't do anything
 142             log_progress_msg "apparently not running"
 143             log_end_msg 0
 144             exit 0
 145         fi
 146         ;;
 147   force-stop)
 148         # First try to stop gracefully the program
 149         $0 stop
 150         if running; then
 151             # If it's still running try to kill it more forcefully
 152             log_daemon_msg "Stopping (force) $NAME"
 153             force_stop
 154             log_end_msg $?
 155         fi
 156         ;;
 157   restart|force-reload)
 158         log_daemon_msg "Restarting $NAME"
 159         stop_server
 160         # Wait some sensible amount, some server need this
 161         [ -n "$DODTIME" ] && sleep $DODTIME
 162         start_server
 163         running
 164         log_end_msg $?
 165         ;;
 166   status)
 167         log_daemon_msg "Checking status of $NAME"
 168         if running ;  then
 169             log_progress_msg "running"
 170             log_end_msg 0
 171         else
 172             log_progress_msg "apparently not running"
 173             log_end_msg 1
 174             exit 1
 175         fi
 176         ;;
 177   # Use this if the daemon cannot reload
 178   reload)
 179         log_warning_msg "Reloading $NAME daemon: not implemented, as the daemon"
 180         log_warning_msg "cannot re-read the config file (use restart)."
 181         ;;
 182   *)
 183         N=/etc/init.d/openvswitch-ipsec
 184         echo "Usage: $N {start|stop|force-stop|restart|force-reload|status}" >&2
 185         exit 1
 186         ;;
 187 esac
 188
 189 exit 0