2 # Copyright (C) 2009, 2010, 2011, 2012 Nicira, Inc.
4 # Licensed under the Apache License, Version 2.0 (the "License");
5 # you may not use this file except in compliance with the License.
6 # You may obtain a copy of the License at:
8 # http://www.apache.org/licenses/LICENSE-2.0
10 # Unless required by applicable law or agreed to in writing, software
11 # distributed under the License is distributed on an "AS IS" BASIS,
12 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 # See the License for the specific language governing permissions and
14 # limitations under the License.
17 */*) dir0=`echo "$0" | sed 's,/[^/]*$,,'` ;;
20 . "$dir0/ovs-lib" || exit 1
22 for dir in "$sbindir" "$bindir" /sbin /bin /usr/sbin /usr/bin; do
33 insert_openvswitch_mod_if_required () {
34 # If openvswitch is already loaded then we're done.
35 test -e /sys/module/openvswitch -o -e /sys/module/openvswitch_mod && \
38 # Load openvswitch. If that's successful then we're done.
39 action "Inserting openvswitch module" modprobe openvswitch && return 0
41 # If the bridge module is loaded, then that might be blocking
42 # openvswitch. Try to unload it, if there are no bridges.
43 test -e /sys/module/bridge || return 1
44 bridges=`echo /sys/class/net/*/bridge | sed 's,/sys/class/net/,,g;s,/bridge,,g'`
45 if test "$bridges" != "*"; then
46 log_warning_msg "not removing bridge module because bridges exist ($bridges)"
49 action "removing bridge module" rmmod bridge || return 1
51 # Try loading openvswitch again.
52 action "Inserting openvswitch module" modprobe openvswitch
55 insert_brcompat_mod_if_required () {
56 if test -e /sys/module/bridge; then
57 log_warning_msg "bridge module is loaded, not loading brcompat"
60 test -e /sys/module/brcompat -o -e /sys/module/brcompat_mod && return 0
61 action "Inserting brcompat module" modprobe brcompat
64 insert_mod_if_required () {
65 insert_openvswitch_mod_if_required || return 1
66 if test X"$BRCOMPAT" = Xyes; then
67 if insert_brcompat_mod_if_required; then
70 log_warning_msg "could not load brcompat module, disabling bridge compatibility"
77 ovs-vsctl --no-wait --timeout=5 "$@"
81 ovsdb-tool -vconsole:off "$@"
85 action "Creating empty database $DB_FILE" ovsdb_tool create "$DB_FILE" "$DB_SCHEMA"
89 schemaver=`ovsdb_tool schema-version "$DB_SCHEMA"`
90 if test ! -e "$DB_FILE"; then
91 log_warning_msg "$DB_FILE does not exist"
92 install -d -m 755 -o root -g root `dirname $DB_FILE`
94 elif test X"`ovsdb_tool needs-conversion "$DB_FILE" "$DB_SCHEMA"`" != Xno; then
95 # Back up the old version.
96 version=`ovsdb_tool db-version "$DB_FILE"`
97 cksum=`ovsdb_tool db-cksum "$DB_FILE" | awk '{print $1}'`
98 backup=$DB_FILE.backup$version-$cksum
99 action "Backing up database to $backup" cp "$DB_FILE" "$backup" || return 1
101 # Compact database. This is important if the old schema did not enable
102 # garbage collection (i.e. if it did not have any tables with "isRoot":
103 # true) but the new schema does. In that situation the old database
104 # may contain a transaction that creates a record followed by a
105 # transaction that creates the first use of the record. Replaying that
106 # series of transactions against the new database schema (as "convert"
107 # does) would cause the record to be dropped by the first transaction,
108 # then the second transaction would cause a referential integrity
109 # failure (for a strong reference).
111 # Errors might occur on an Open vSwitch downgrade if ovsdb-tool doesn't
112 # understand some feature of the schema used in the OVSDB version that
113 # we're downgrading from, so we don't give up on error.
114 action "Compacting database" ovsdb_tool compact "$DB_FILE"
116 # Upgrade or downgrade schema.
117 if action "Converting database schema" ovsdb_tool convert "$DB_FILE" "$DB_SCHEMA"; then
120 log_warning_msg "Schema conversion failed, using empty database instead"
128 set ovs_vsctl set Open_vSwitch .
130 OVS_VERSION=`ovs-vswitchd --version | sed 's/.*) //;1q'`
131 set "$@" ovs-version="$OVS_VERSION"
135 id_file=$etcdir/system-id.conf
136 uuid_file=$etcdir/install_uuid.conf
137 if test -e "$id_file"; then
138 SYSTEM_ID=`cat "$id_file"`
139 elif test -e "$uuid_file"; then
140 # Migrate from old file name.
142 SYSTEM_ID=$INSTALLATION_UUID
143 echo "$SYSTEM_ID" > "$id_file"
144 elif SYSTEM_ID=`uuidgen`; then
145 echo "$SYSTEM_ID" > "$id_file"
147 log_failure_msg "missing uuidgen, could not generate system ID"
152 log_failure_msg "system ID not configured, please use --system-id"
158 set "$@" external-ids:system-id="\"$SYSTEM_ID\""
160 if test X"$SYSTEM_TYPE" != X; then
161 set "$@" system-type="\"$SYSTEM_TYPE\""
163 log_failure_msg "no default system type, please use --system-type"
166 if test X"$SYSTEM_VERSION" != X; then
167 set "$@" system-version="\"$SYSTEM_VERSION\""
169 log_failure_msg "no default system version, please use --system-version"
172 action "Configuring Open vSwitch system IDs" "$@" $extra_ids
175 check_force_cores () {
176 if test X"$FORCE_COREFILES" = Xyes; then
184 if daemon_is_running ovsdb-server; then
185 log_success_msg "ovsdb-server is already running"
187 # Create initial database or upgrade database schema.
188 upgrade_db || return 1
190 # Start ovsdb-server.
191 set ovsdb-server "$DB_FILE"
192 set "$@" -vconsole:emer -vsyslog:err -vfile:info
193 set "$@" --remote=punix:"$DB_SOCK"
194 set "$@" --remote=db:Open_vSwitch,manager_options
195 set "$@" --private-key=db:SSL,private_key
196 set "$@" --certificate=db:SSL,certificate
197 set "$@" --bootstrap-ca-cert=db:SSL,ca_cert
198 start_daemon "$OVSDB_SERVER_PRIORITY" "$OVSDB_SERVER_WRAPPER" "$@" \
201 # Initialize database settings.
202 ovs_vsctl -- init -- set Open_vSwitch . db-version="$schemaver" \
204 set_system_ids || return 1
205 if test X"$DELETE_BRIDGES" = Xyes; then
206 for bridge in `ovs_vsctl list-br`; do
207 ovs_vsctl del-br $bridge
213 start_forwarding () {
216 insert_mod_if_required || return 1
218 if daemon_is_running ovs-vswitchd; then
219 log_success_msg "ovs-vswitchd is already running"
221 # Increase the limit on the number of open file descriptors.
222 # ovs-vswitchd needs 16 per datapath, plus a few extra, so this
223 # should allow for 256 (or more) bridges.
226 # Start ovs-vswitchd.
227 set ovs-vswitchd unix:"$DB_SOCK"
228 set "$@" -vconsole:emer -vsyslog:err -vfile:info
229 if test X"$MLOCKALL" != Xno; then
232 start_daemon "$OVS_VSWITCHD_PRIORITY" "$OVS_VSWITCHD_WRAPPER" "$@"
235 if daemon_is_running ovs-brcompatd; then
236 log_success_msg "ovs-brcompatd is already running"
237 elif test X"$BRCOMPAT" = Xyes; then
239 set "$@" -vconsole:emer -vsyslog:err -vfile:info
240 start_daemon "$OVS_BRCOMPATD_PRIORITY" "$OVS_BRCOMPATD_WRAPPER" "$@"
249 stop_daemon ovsdb-server
253 stop_daemon ovs-brcompatd
254 stop_daemon ovs-vswitchd
257 ## ----------------- ##
258 ## force-reload-kmod ##
259 ## ----------------- ##
261 internal_interfaces () {
262 # Outputs a list of internal interfaces:
264 # - There is an internal interface for every bridge, whether it
265 # has an Interface record or not and whether the Interface
266 # record's 'type' is properly set or not.
268 # - There is an internal interface for each Interface record whose
269 # 'type' is 'internal'.
271 # But ignore interfaces that don't really exist.
272 for d in `(ovs_vsctl --bare \
273 -- --columns=name find Interface type=internal \
274 -- list-br) | sort -u`
276 if test -e "/sys/class/net/$d"; then
283 "$datadir/scripts/ovs-save" $ifaces > "$script"
286 force_reload_kmod () {
287 ifaces=`internal_interfaces`
288 action "Detected internal interfaces: $ifaces" true
290 # Restart the database first, since a large database may take a
291 # while to load, and we want to minimize forwarding disruption.
298 trap 'rm -f "$script"' 0 1 2 13 15
299 if action "Saving interface configuration" save_interfaces; then
302 log_warning_msg "Failed to save configuration, not replacing kernel module"
308 for dp in `ovs-dpctl dump-dps`; do
309 action "Removing datapath: $dp" ovs-dpctl del-dp "$dp"
312 # try both old and new names in case this is post upgrade
313 if test -e /sys/module/brcompat_mod; then
314 action "Removing brcompat module" rmmod brcompat_mod
315 elif test -e /sys/module/brcompat; then
316 action "Removing brcompat module" rmmod brcompat
318 if test -e /sys/module/openvswitch_mod; then
319 action "Removing openvswitch module" rmmod openvswitch_mod
320 elif test -e /sys/module/openvswitch; then
321 action "Removing openvswitch module" rmmod openvswitch
326 action "Restoring interface configuration" "$script"
328 if test $rc = 0; then
333 log="logger -p daemon.$level -t ovs-save"
334 $log "force-reload-kmod interface restore script exited with status $rc:"
337 "$datadir/scripts/ovs-check-dead-ifs"
340 ## --------------- ##
341 ## enable-protocol ##
342 ## --------------- ##
345 # Translate the protocol name to a number, because "iptables -n -L" prints
346 # some protocols by name (despite the -n) and therefore we need to look for
349 # (iptables -S output is more uniform but old iptables doesn't have it.)
350 protonum=`grep "^$PROTOCOL[ ]" /etc/protocols | awk '{print $2}'`
351 if expr X"$protonum" : X'[0-9]\{1,\}$' > /dev/null; then :; else
352 log_failure_msg "unknown protocol $PROTOCOL"
357 match="(\$2 == \"$PROTOCOL\" || \$2 == $protonum)"
358 insert="iptables -I INPUT -p $PROTOCOL"
359 if test X"$DPORT" != X; then
360 name="$name to port $DPORT"
361 match="$match && /dpt:$DPORT/"
362 insert="$insert --dport $DPORT"
364 if test X"$SPORT" != X; then
365 name="$name from port $SPORT"
366 match="$match && /spt:$SPORT/"
367 insert="$insert --sport $SPORT"
369 insert="$insert -j ACCEPT"
371 if (iptables -n -L INPUT) >/dev/null 2>&1; then
372 if iptables -n -L INPUT | awk "$match { n++ } END { exit n == 0 }"
374 # There's already a rule for this protocol. Don't override it.
375 log_success_msg "iptables already has a rule for $name, not explicitly enabling"
377 action "Enabling $name with iptables" $insert
379 elif (iptables --version) >/dev/null 2>&1; then
380 action "cannot list iptables rules, not adding a rule for $name"
382 action "iptables binary not installed, not adding a rule for $name"
399 OVSDB_SERVER_PRIORITY=-10
400 OVS_VSWITCHD_PRIORITY=-10
401 OVS_BRCOMPATD_PRIORITY=-10
402 OVSDB_SERVER_WRAPPER=
403 OVS_VSWITCHD_WRAPPER=
404 OVS_BRCOMPATD_WRAPPER=
406 DB_FILE=$dbdir/conf.db
407 DB_SOCK=$rundir/db.sock
408 DB_SCHEMA=$datadir/vswitch.ovsschema
414 type_file=$etcdir/system-type.conf
415 version_file=$etcdir/system-version.conf
417 if test -e "$type_file" ; then
418 SYSTEM_TYPE=`cat $type_file`
419 SYSTEM_VERSION=`cat $version_file`
420 elif (lsb_release --id) >/dev/null 2>&1; then
421 SYSTEM_TYPE=`lsb_release --id -s`
422 system_release=`lsb_release --release -s`
423 system_codename=`lsb_release --codename -s`
424 SYSTEM_VERSION="${system_release}-${system_codename}"
427 SYSTEM_VERSION=unknown
434 $0: controls Open vSwitch daemons
435 usage: $0 [OPTIONS] COMMAND
437 This program is intended to be invoked internally by Open vSwitch startup
438 scripts. System administrators should not normally invoke it directly.
441 start start Open vSwitch daemons
442 stop stop Open vSwitch daemons
443 status check whether Open vSwitch daemons are running
444 version print versions of Open vSwitch daemons
445 load-kmod insert modules if not already present
446 force-reload-kmod save OVS network device state, stop OVS, unload kernel
447 module, reload kernel module, start OVS, restore state
448 enable-protocol enable protocol specified in options with iptables
449 help display this help message
451 One of the following options is required for "start" and "force-reload-kmod":
452 --system-id=UUID set specific ID to uniquely identify this system
453 --system-id=random use a random but persistent UUID to identify this system
455 Other important options for "start" and "force-reload-kmod":
456 --system-type=TYPE set system type (e.g. "XenServer")
457 --system-version=VERSION set system version (e.g. "5.6.100-39265p")
458 --external-id="key=value"
459 add given key-value pair to Open_vSwitch external-ids
460 --delete-bridges delete all bridges just before starting ovs-vswitchd
462 Less important options for "start" and "force-reload-kmod":
463 --daemon-cwd=DIR set working dir for OVS daemons (default: $DAEMON_CWD)
464 --no-force-corefiles do not force on core dumps for OVS daemons
465 --no-mlockall do not lock all of ovs-vswitchd into memory
466 --ovsdb-server-priority=NICE set ovsdb-server's niceness (default: $OVSDB_SERVER_PRIORITY)
467 --ovs-vswitchd-priority=NICE set ovs-vswitchd's niceness (default: $OVS_VSWITCHD_PRIORITY)
468 --ovs-brcompatd-priority=NICE set ovs-brcompatd's niceness (default: $OVS_BRCOMPATD_PRIORITY)
470 Debugging options for "start" and "force-reload-kmod":
471 --ovsdb-server-wrapper=WRAPPER
472 --ovs-vswitchd-wrapper=WRAPPER
473 --ovs-vswitchd-wrapper=WRAPPER
474 run specified daemon under WRAPPER (either 'valgrind' or 'strace')
476 Options for "start", "force-reload-kmod", "load-kmod", "status", and "version":
477 --brcompat enable Linux bridge compatibility module and daemon
479 File location options:
480 --db-file=FILE database file name (default: $DB_FILE)
481 --db-sock=SOCKET JSON-RPC socket name (default: $DB_SOCK)
482 --db-schema=FILE database schema file name (default: $DB_SCHEMA)
484 Options for "enable-protocol":
485 --protocol=PROTOCOL protocol to enable with iptables (default: gre)
486 --sport=PORT source port to match (for tcp or udp protocol)
487 --dport=PORT ddestination port to match (for tcp or udp protocol)
490 -h, --help display this help message
491 -V, --version display version information
493 Default directories with "configure" option and environment variable override:
494 logs: @LOGDIR@ (--with-logdir, OVS_LOGDIR)
495 pidfiles and sockets: @RUNDIR@ (--with-rundir, OVS_RUNDIR)
496 conf.db: @DBDIR@ (--with-dbdir, OVS_DBDIR)
497 system configuration: @sysconfdir@ (--sysconfdir, OVS_SYSCONFDIR)
498 data files: @pkgdatadir@ (--pkgdatadir, OVS_PKGDATADIR)
499 user binaries: @bindir@ (--bindir, OVS_BINDIR)
500 system binaries: @sbindir@ (--sbindir, OVS_SBINDIR)
502 Please report bugs to bugs@openvswitch.org (see REPORTING-BUGS for details).
509 var=`echo "$option" | tr abcdefghijklmnopqrstuvwxyz- ABCDEFGHIJKLMNOPQRSTUVWXYZ_`
510 eval set=\${$var+yes}
511 eval old_value=\$$var
512 if test X$set = X || \
513 (test $type = bool && \
514 test X"$old_value" != Xno && test X"$old_value" != Xyes); then
515 echo >&2 "$0: unknown option \"$arg\" (use --help for help)"
522 echo ovsdb-server ovs-vswitchd
523 if test X"$BRCOMPAT" = Xyes; then
538 echo "$0 (Open vSwitch) $VERSION"
542 value=`expr X"$arg" : 'X[^=]*=\(.*\)'`
545 extra_ids="$extra_ids external-ids:$value"
548 echo >&2 "$0: --external-id argument not in the form \"key=value\""
554 option=`expr X"$arg" : 'X--\([^=]*\)'`
555 value=`expr X"$arg" : 'X[^=]*=\(.*\)'`
560 option=`expr X"$arg" : 'X--no-\(.*\)'`
566 option=`expr X"$arg" : 'X--\(.*\)'`
572 echo >&2 "$0: unknown option \"$arg\" (use --help for help)"
576 if test X"$command" = X; then
579 echo >&2 "$0: exactly one non-option argument required (use --help for help)"
596 for daemon in `daemons`; do
597 daemon_status $daemon || rc=$?
602 for daemon in `daemons`; do
610 insert_mod_if_required
619 echo >&2 "$0: missing command name (use --help for help)"
623 echo >&2 "$0: unknown command \"$command\" (use --help for help)"