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 openvswitch-switch 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"
  97         if running $name; then
  98             kill -KILL $pid
  99             [ -n "$DODTIME" ] && sleep "$DODTIME"
 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 0
 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 $dp; then
 187                 echo "success."
 188             else
 189                 echo "ERROR."
 190             fi
 191         done
 192     fi
 193     unload_module openvswitch_mod
 194 }
 195
 196 set_system_info() {
 197     ovs_version=`ovs-vswitchd --version | sed 's/.*) //;1q'`
 198     ovs-vsctl --no-wait --timeout=5 set Open_vSwitch . \
 199         ovs-version="$ovs_version"
 200
 201     if (lsb_release --id) >/dev/null 2>&1; then
 202         system_type=`lsb_release --id -s`
 203         system_release=`lsb_release --release -s`
 204         system_codename=`lsb_release --codename -s`
 205         system_version="${system_release}-${system_codename}"
 206
 207         ovs-vsctl --no-wait --timeout=5 set Open_vSwitch . \
 208             system-type="$system_type" \
 209             system-version="$system_version"
 210     fi
 211 }
 212
 213 case "$1" in
 214     start)
 215         conf_file=/etc/openvswitch/conf.db
 216         schema_file=/usr/share/openvswitch/vswitch.ovsschema
 217         schema_ver=`ovsdb-tool schema-version "$schema_file"`
 218
 219         load_module openvswitch_mod
 220
 221         if test -n "$CORE_LIMIT"; then
 222             check_op "Setting core limit to $CORE_LIMIT" ulimit -c "$CORE_LIMIT"
 223         fi
 224
 225         # Create an empty configuration database if it doesn't exist.
 226         if test ! -e $conf_file; then
 227             # Create configuration database.
 228             ovsdb-tool -vANY:console:emer create $conf_file $schema_file
 229         elif test "X`ovsdb-tool needs-conversion $conf_file $schema_file`" != Xno; then
 230             # Back up the old version.
 231             version=`ovsdb-tool db-version "$conf_file"`
 232             cksum=`ovsdb-tool db-cksum "$conf_file" | awk '{print $1}'`
 233             cp "$conf_file" "$conf_file.backup$version-$cksum"
 234
 235             # Compact database.  This is important if the old schema did not
 236             # enable garbage collection (i.e. if it did not have any tables
 237             # with "isRoot": true) but the new schema does.  In that situation
 238             # the old database may contain a transaction that creates a record
 239             # followed by a transaction that creates the first use of the
 240             # record.  Replaying that series of transactions against the new
 241             # database schema (as "convert" does) would cause the record to be
 242             # dropped by the first transaction, then the second transaction
 243             # would cause a referential integrity failure (for a strong
 244             # reference).
 245             ovsdb-tool -vANY:console:emer compact $conf_file
 246
 247             # Upgrade or downgrade schema and compact database.
 248             ovsdb-tool -vANY:console:emer convert $conf_file $schema_file
 249         fi
 250
 251         if test "$ENABLE_MONITOR" = y; then
 252             monitor_opt=--monitor
 253         else
 254             monitor_opt=
 255         fi
 256
 257         if [ ! -d /var/run/openvswitch ]; then
 258             install -d -m 755 -o root -g root /var/run/openvswitch
 259         fi
 260
 261         if [ ! -d /var/log/openvswitch ]; then
 262             install -d -m 755 -o root -g root /var/log/openvswitch
 263         fi
 264
 265         if [ ! -d /var/log/openvswitch/cores ]; then
 266             install -d -m 755 -o root -g root /var/log/openvswitch/cores
 267         fi
 268
 269         # Start ovsdb-server.
 270         set --
 271         set -- "$@" $conf_file
 272         set -- "$@" --verbose=ANY:console:emer --verbose=ANY:syslog:err
 273         set -- "$@" --log-file=/var/log/openvswitch/ovsdb-server.log
 274         set -- "$@" --detach --no-chdir --pidfile $monitor_opt
 275         set -- "$@" --remote punix:/var/run/openvswitch/db.sock
 276         set -- "$@" --remote db:Open_vSwitch,manager_options
 277         set -- "$@" --private-key=db:SSL,private_key
 278         set -- "$@" --certificate=db:SSL,certificate
 279         set -- "$@" --bootstrap-ca-cert=db:SSL,ca_cert
 280         set -- "$@" $OVSDB_SERVER_OPTS
 281         echo -n "Starting ovsdb-server: "
 282         start-stop-daemon --start --quiet --oknodo \
 283             --pidfile /var/run/openvswitch/ovsdb-server.pid \
 284             --chdir /var/log/openvswitch/cores              \
 285             --exec $ovsdb_server -- "$@"
 286         if running ovsdb-server; then
 287             echo "ovsdb-server."
 288         else
 289             echo " ERROR."
 290         fi
 291
 292         ovs-vsctl --no-wait --timeout=5 init -- set Open_vSwitch . db-version="$schema_ver"
 293
 294         set_system_info
 295
 296         # Start ovs-vswitchd.
 297         set --
 298         set -- "$@" --verbose=ANY:console:emer --verbose=ANY:syslog:err
 299         set -- "$@" --log-file=/var/log/openvswitch/ovs-vswitchd.log
 300         set -- "$@" --detach --no-chdir --pidfile $monitor_opt
 301         set -- "$@" unix:/var/run/openvswitch/db.sock
 302         set -- "$@" $OVS_VSWITCHD_OPTS
 303         echo -n "Starting ovs-vswitchd: "
 304         start-stop-daemon --start --quiet --oknodo \
 305             --pidfile /var/run/openvswitch/ovs-vswitchd.pid \
 306             --chdir /var/log/openvswitch/cores              \
 307             --exec $ovs_vswitchd -- "$@"
 308         if running ovs-vswitchd; then
 309             echo "ovs-vswitchd."
 310         else
 311             echo " ERROR."
 312         fi
 313         ;;
 314     stop)
 315         echo -n "Stopping ovs-vswitchd: "
 316         start-stop-daemon --stop --quiet --oknodo --retry 5 \
 317             --pidfile /var/run/openvswitch/ovs-vswitchd.pid \
 318             --chdir /var/log/openvswitch/cores              \
 319             --exec $ovs_vswitchd
 320         echo "ovs-vswitchd."
 321
 322         echo -n "Stopping ovsdb-server: "
 323         start-stop-daemon --stop --quiet --oknodo --retry 5 \
 324             --pidfile /var/run/openvswitch/ovsdb-server.pid \
 325             --chdir /var/log/openvswitch/cores              \
 326             --exec $ovsdb_server
 327         echo "ovsdb-server."
 328         ;;
 329     force-stop)
 330         echo -n "Forcefully stopping ovs-vswitchd: "
 331         force_stop ovs-vswitchd
 332         if ! running ovs-vswitchd; then
 333             echo "ovs-vswitchd."
 334         else
 335             echo " ERROR."
 336         fi
 337
 338         echo -n "Forcefully stopping ovsdb-server: "
 339         force_stop ovsdb-server
 340         if ! running ovsdb-server; then
 341             echo "ovsdb-server."
 342         else
 343             echo " ERROR."
 344         fi
 345         ;;
 346     unload)
 347         unload_modules
 348         ;;
 349     reload)
 350         ;;
 351     force-reload)
 352         # Nothing to do, since ovs-vswitchd automatically reloads
 353         # whenever its configuration changes, and ovsdb-server doesn't
 354         # have anything to reload.
 355         ;;
 356     restart)
 357         $0 stop || true
 358         $0 start
 359         ;;
 360     status)
 361         for daemon in ovs-vswitchd ovsdb-server; do
 362             echo -n "$daemon is "
 363             if running $daemon;  then
 364                 echo "running"
 365             else
 366                 echo "not running."
 367                 exit 1
 368             fi
 369         done
 370         ;;
 371     *)
 372         N=/etc/init.d/openvswitch-switch
 373         echo "Usage: $N {start|stop|restart|force-reload|status|force-stop|unload}" >&2
 374         exit 1
 375         ;;
 376 esac
 377
 378 exit 0