debian/openvswitch-switch.init

   1 #! /bin/sh
   2 #
   3 # /etc/init.d/openvswitch-switch
   4 #
   5 # Written by Miquel van Smoorenburg <miquels@cistron.nl>.
   6 # Modified for Debian by Ian Murdock <imurdock@gnu.ai.mit.edu>.
   7 # Further changes by Javier Fernandez-Sanguino <jfs@debian.org>
   8 # Modified for openvswitch-switch.
   9 #
  10 # Version:      @(#)skeleton  1.9  26-Feb-2001  miquels@cistron.nl
  11 #
  12 ### BEGIN INIT INFO
  13 # Provides:          openvswitch-switch
  14 # Required-Start:    $network $named $remote_fs $syslog
  15 # Required-Stop:
  16 # Default-Start:     2 3 4 5
  17 # Default-Stop:      0 1 6
  18 # Short-Description: Open vSwitch switch
  19 ### END INIT INFO
  20
  21 PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
  22 ovs_vswitchd=/usr/sbin/ovs-vswitchd
  23 ovsdb_server=/usr/bin/ovsdb-server
  24
  25 (test -x $ovsdb_server && test -x $ovs_vswitchd) || exit 0
  26
  27 DODTIME=1                   # Time to wait for the server to die, in seconds
  28                             # If this value is set too low you might not
  29                             # let some servers to die gracefully and
  30                             # 'restart' will not work
  31
  32 # Include ovs-openflowd defaults if available
  33 unset OVSDB_SERVER_OPTS
  34 unset OVS_VSWITCHD_OPTS
  35 unset CORE_LIMIT
  36 unset ENABLE_MONITOR
  37 default=/etc/default/openvswitch-switch
  38 if [ -f $default ] ; then
  39     . $default
  40 fi
  41
  42 : ${ENABLE_MONITOR:=y}
  43
  44 set -e
  45
  46 # running_pid pid name
  47 #
  48 # Check if 'pid' is a process named 'name'
  49 running_pid()
  50 {
  51     local pid=$1 name=$2
  52     [ -z "$pid" ] && return 1
  53     [ ! -d /proc/$pid ] &&  return 1
  54     cmd=`cat /proc/$pid/cmdline | tr "\000" "\n"|head -n 1 |cut -d : -f 1`
  55     # Is this the expected child?
  56     case $cmd in
  57         $name|*/$name)
  58             return 0
  59             ;;
  60         *)
  61             return 1
  62             ;;
  63     esac
  64 }
  65
  66 # running name
  67 #
  68 # Checks for a running process named 'name' by looking for a pidfile
  69 # named /var/run/${name}.pid
  70 running()
  71 {
  72     local name=$1
  73     local pidfile=/var/run/${name}.pid
  74
  75     # No pidfile, probably no daemon present
  76     [ ! -f "$pidfile" ] && return 1
  77
  78     # Obtain the pid and check it against the binary name
  79     pid=`cat $pidfile`
  80     running_pid $pid $name || return 1
  81     return 0
  82 }
  83
  84 # force_stop name
  85 #
  86 # Checks for a running process named 'name', by looking for a pidfile
  87 # named /var/run/${name}.pid, and then kills it and waits for it to
  88 # die.
  89 force_stop() {
  90     local name=$1
  91     local pidfile=/var/run/${name}.pid
  92
  93     [ ! -f "$pidfile" ] && return
  94     if running $name; then
  95         kill $pid
  96         [ -n "$DODTIME" ] && sleep "$DODTIME"s
  97         if running $name; then
  98             kill -KILL $pid
  99             [ -n "$DODTIME" ] && sleep "$DODTIME"s
 100             if running $name; then
 101                 echo "Cannot kill $name (pid=$pid)!"
 102                 exit 1
 103             fi
 104         fi
 105     fi
 106     rm -f $pidfile
 107     return 0
 108 }
 109
 110 must_succeed() {
 111     echo -n "$1: "
 112     shift
 113     if "$@"; then
 114         echo "success."
 115     else
 116         echo " ERROR."
 117         exit 1
 118     fi
 119 }
 120
 121 check_op() {
 122     echo -n "$1: "
 123     shift
 124     if "$@"; then
 125         echo "success."
 126     else
 127         echo " ERROR."
 128     fi
 129 }
 130
 131 # is_module_loaded module
 132 #
 133 # Returns 0 if 'module' is loaded, 1 otherwise.
 134
 135 is_module_loaded() {
 136     local module=$1
 137     grep -q "^$module " /proc/modules
 138 }
 139
 140 # load_module module
 141 #
 142 # Loads 'module' into the running kernel, if it is not already loaded.
 143 load_module() {
 144     local module=$1
 145     echo -n "Loading $module: "
 146     if is_module_loaded $module; then
 147         echo "already loaded, nothing to do."
 148     elif modprobe $module; then
 149         echo "success."
 150     else
 151         echo "ERROR."
 152         echo "$module has probably not been built for this kernel."
 153         if ! test -d /usr/share/doc/openvswitch-datapath-source; then
 154             echo "Install the openvswitch-datapath-source package, then read"
 155             echo "/usr/share/doc/openvswitch-datapath-source/README.Debian"
 156         else
 157             echo "For instructions, read"
 158             echo "/usr/share/doc/openvswitch-datapath-source/README.Debian"
 159         fi
 160         exit 1
 161     fi
 162 }
 163
 164 # unload_module module
 165 #
 166 # Unloads 'module' from the running kernel, if it is loaded.
 167 unload_module() {
 168     local module=$1
 169     echo -n "Unloading $module: "
 170     if is_module_loaded $module; then
 171         if rmmod $module; then
 172             echo "success."
 173         else
 174             echo "ERROR."
 175             exit 1
 176         fi
 177     else
 178         echo "not loaded, nothing to do."
 179     fi
 180 }
 181
 182 unload_modules() {
 183     if is_module_loaded openvswitch_mod; then
 184         for dp in $(ovs-dpctl dump-dps); do
 185             echo -n "Deleting datapath $dp: "
 186             if ovs-dpctl del-dp $dp; then
 187                 echo "success."
 188             else
 189                 echo "ERROR."
 190             fi
 191         done
 192     fi
 193     unload_module openvswitch_mod
 194     unload_module ip_gre_mod
 195 }
 196
 197 case "$1" in
 198     start)
 199         load_module openvswitch_mod
 200         unload_module ip_gre
 201         load_module ip_gre_mod
 202
 203         if test -n "$CORE_LIMIT"; then
 204             check_op "Setting core limit to $CORE_LIMIT" ulimit -c "$CORE_LIMIT"
 205         fi
 206
 207         # Create an empty configuration database if it doesn't exist.
 208         if test ! -e /etc/openvswitch-switch/conf; then
 209             # Create configuration database.
 210             ovsdb-tool -vANY:console:emer \
 211                 create /etc/openvswitch-switch/conf \
 212                 /usr/share/openvswitch/vswitch.ovsschema
 213         else
 214             # Upgrade or downgrade schema and compact database.
 215             ovsdb-tool -vANY:console:emer \
 216                 convert /etc/openvswitch-switch/conf \
 217                 /usr/share/openvswitch/vswitch.ovsschema
 218         fi
 219
 220         if test "$ENABLE_MONITOR" = y; then
 221             monitor_opt=--monitor
 222         else
 223             monitor_opt=
 224         fi
 225
 226         # Start ovsdb-server.
 227         set --
 228         set -- "$@" --verbose=ANY:console:emer --verbose=ANY:syslog:err
 229         set -- "$@" --log-file
 230         set -- "$@" --detach --pidfile $monitor_opt
 231         set -- "$@" --remote punix:/var/run/ovsdb-server
 232         set -- "$@" /etc/openvswitch-switch/conf
 233         set -- "$@" $OVSDB_SERVER_OPTS
 234         echo -n "Starting ovsdb-server: "
 235         start-stop-daemon --start --quiet --pidfile /var/run/ovsdb-server.pid \
 236             --exec $ovsdb_server -- "$@"
 237         if running ovsdb-server; then
 238             echo "ovsdb-server."
 239         else
 240             echo " ERROR."
 241         fi
 242
 243         ovs-vsctl --no-wait init
 244
 245         # Start ovs-vswitchd.
 246         set --
 247         set -- "$@" --verbose=ANY:console:emer --verbose=ANY:syslog:err
 248         set -- "$@" --log-file
 249         set -- "$@" --detach --pidfile $monitor_opt
 250         set -- "$@" unix:/var/run/ovsdb-server
 251         set -- "$@" $OVS_VSWITCHD_OPTS
 252         echo -n "Starting ovs-vswitchd: "
 253         start-stop-daemon --start --quiet --pidfile /var/run/ovs-vswitchd.pid \
 254             --exec $ovs_vswitchd -- "$@"
 255         if running ovs-vswitchd; then
 256             echo "ovs-vswitchd."
 257         else
 258             echo " ERROR."
 259         fi
 260         ;;
 261     stop)
 262         echo -n "Stopping ovs-vswitchd: "
 263         start-stop-daemon --stop --quiet --oknodo \
 264             --pidfile /var/run/ovs-vswitchd.pid \
 265             --exec $ovs_vswitchd
 266         echo "ovs-vswitchd."
 267
 268         echo -n "Stopping ovsdb-server: "
 269         start-stop-daemon --stop --quiet --oknodo \
 270             --pidfile /var/run/ovsdb-server.pid \
 271             --exec $ovsdb_server
 272         echo "ovsdb-server."
 273         ;;
 274     force-stop)
 275         echo -n "Forcefully stopping ovs-vswitchd: "
 276         force_stop ovs-vswitchd
 277         if ! running ovs-vswitchd; then
 278             echo "ovs-vswitchd."
 279         else
 280             echo " ERROR."
 281         fi
 282
 283         echo -n "Forcefully stopping ovsdb-server: "
 284         force_stop ovsdb-server
 285         if ! running ovsdb-server; then
 286             echo "ovsdb-server."
 287         else
 288             echo " ERROR."
 289         fi
 290         ;;
 291     unload)
 292         unload_modules
 293         ;;
 294     reload)
 295         ;;
 296     force-reload)
 297         # Nothing to do, since ovs-vswitchd automatically reloads
 298         # whenever its configuration changes, and ovsdb-server doesn't
 299         # have anything to reload.
 300         ;;
 301     restart)
 302         $0 stop || true
 303         $0 start
 304         ;;
 305     status)
 306         for daemon in ovs-vswitchd ovsdb-server; do
 307             echo -n "$daemon is "
 308             if running $daemon;  then
 309                 echo "running"
 310             else
 311                 echo " not running."
 312                 exit 1
 313             fi
 314         done
 315         ;;
 316     *)
 317         N=/etc/init.d/$NAME
 318         echo "Usage: $N {start|stop|restart|force-reload|status|force-stop|unload}" >&2
 319         exit 1
 320         ;;
 321 esac
 322
 323 exit 0