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:     $remote_fs
  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/openvswitch/${name}.pid
  70 running()
  71 {
  72     local name=$1
  73     local pidfile=/var/run/openvswitch/${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 $name || return 1
  81     return 0
  82 }
  83
  84 # force_stop name
  85 #
  86 # Checks for a running process named 'name', by looking for a pidfile
  87 # named /var/run/openvswitch/${name}.pid, and then kills it and waits
  88 # for it to die.
  89 force_stop() {
  90     local name=$1
  91     local pidfile=/var/run/openvswitch/${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 }
 195
 196 case "$1" in
 197     start)
 198         load_module openvswitch_mod
 199
 200         if test -n "$CORE_LIMIT"; then
 201             check_op "Setting core limit to $CORE_LIMIT" ulimit -c "$CORE_LIMIT"
 202         fi
 203
 204         # Create an empty configuration database if it doesn't exist.
 205         if test ! -e /etc/openvswitch/conf.db; then
 206             install -d -m 755 -o root -g root /etc/openvswitch
 207
 208             # Create configuration database.
 209             ovsdb-tool -vANY:console:emer \
 210                 create /etc/openvswitch/conf.db \
 211                 /usr/share/openvswitch/vswitch.ovsschema
 212         else
 213             # Upgrade or downgrade schema and compact database.
 214             ovsdb-tool -vANY:console:emer \
 215                 convert /etc/openvswitch/conf.db \
 216                 /usr/share/openvswitch/vswitch.ovsschema
 217         fi
 218
 219         if test "$ENABLE_MONITOR" = y; then
 220             monitor_opt=--monitor
 221         else
 222             monitor_opt=
 223         fi
 224
 225         if [ ! -d /var/run/openvswitch ]; then
 226             install -d -m 755 -o root -g root /var/run/openvswitch
 227         fi
 228
 229         if [ ! -d /var/log/openvswitch ]; then
 230             install -d -m 755 -o root -g root /var/log/openvswitch
 231         fi
 232
 233         # Start ovsdb-server.
 234         set --
 235         set -- "$@" /etc/openvswitch/conf.db
 236         set -- "$@" --verbose=ANY:console:emer --verbose=ANY:syslog:err
 237         set -- "$@" --log-file=/var/log/openvswitch/ovsdb-server.log
 238         set -- "$@" --detach --pidfile $monitor_opt
 239         set -- "$@" --remote punix:/var/run/openvswitch/db.sock
 240         set -- "$@" --remote db:Open_vSwitch,managers
 241         set -- "$@" --private-key=db:SSL,private_key
 242         set -- "$@" --certificate=db:SSL,certificate
 243         set -- "$@" --bootstrap-ca-cert=db:SSL,ca_cert
 244         set -- "$@" $OVSDB_SERVER_OPTS
 245         echo -n "Starting ovsdb-server: "
 246         start-stop-daemon --start --quiet \
 247             --pidfile /var/run/openvswitch/ovsdb-server.pid \
 248             --exec $ovsdb_server -- "$@"
 249         if running ovsdb-server; then
 250             echo "ovsdb-server."
 251         else
 252             echo " ERROR."
 253         fi
 254
 255         ovs-vsctl --no-wait init
 256
 257         # Start ovs-vswitchd.
 258         set --
 259         set -- "$@" --verbose=ANY:console:emer --verbose=ANY:syslog:err
 260         set -- "$@" --log-file=/var/log/openvswitch/ovs-vswitchd.log
 261         set -- "$@" --detach --pidfile $monitor_opt
 262         set -- "$@" unix:/var/run/openvswitch/db.sock
 263         set -- "$@" $OVS_VSWITCHD_OPTS
 264         echo -n "Starting ovs-vswitchd: "
 265         start-stop-daemon --start --quiet \
 266             --pidfile /var/run/openvswitch/ovs-vswitchd.pid \
 267             --exec $ovs_vswitchd -- "$@"
 268         if running ovs-vswitchd; then
 269             echo "ovs-vswitchd."
 270         else
 271             echo " ERROR."
 272         fi
 273         ;;
 274     stop)
 275         echo -n "Stopping ovs-vswitchd: "
 276         start-stop-daemon --stop --quiet --oknodo --retry 5 \
 277             --pidfile /var/run/openvswitch/ovs-vswitchd.pid \
 278             --exec $ovs_vswitchd
 279         echo "ovs-vswitchd."
 280
 281         echo -n "Stopping ovsdb-server: "
 282         start-stop-daemon --stop --quiet --oknodo --retry 5 \
 283             --pidfile /var/run/openvswitch/ovsdb-server.pid \
 284             --exec $ovsdb_server
 285         echo "ovsdb-server."
 286         ;;
 287     force-stop)
 288         echo -n "Forcefully stopping ovs-vswitchd: "
 289         force_stop ovs-vswitchd
 290         if ! running ovs-vswitchd; then
 291             echo "ovs-vswitchd."
 292         else
 293             echo " ERROR."
 294         fi
 295
 296         echo -n "Forcefully stopping ovsdb-server: "
 297         force_stop ovsdb-server
 298         if ! running ovsdb-server; then
 299             echo "ovsdb-server."
 300         else
 301             echo " ERROR."
 302         fi
 303         ;;
 304     unload)
 305         unload_modules
 306         ;;
 307     reload)
 308         ;;
 309     force-reload)
 310         # Nothing to do, since ovs-vswitchd automatically reloads
 311         # whenever its configuration changes, and ovsdb-server doesn't
 312         # have anything to reload.
 313         ;;
 314     restart)
 315         $0 stop || true
 316         $0 start
 317         ;;
 318     status)
 319         for daemon in ovs-vswitchd ovsdb-server; do
 320             echo -n "$daemon is "
 321             if running $daemon;  then
 322                 echo "running"
 323             else
 324                 echo " not running."
 325                 exit 1
 326             fi
 327         done
 328         ;;
 329     *)
 330         N=/etc/init.d/openvswitch-switch
 331         echo "Usage: $N {start|stop|restart|force-reload|status|force-stop|unload}" >&2
 332         exit 1
 333         ;;
 334 esac
 335
 336 exit 0