#! /bin/sh
-# Copyright (C) 2009, 2010, 2011, 2012 Nicira, Inc.
+# Copyright (C) 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
## start ##
## ----- ##
-insert_openvswitch_mod_if_required () {
+insert_mod_if_required () {
# If openvswitch is already loaded then we're done.
test -e /sys/module/openvswitch -o -e /sys/module/openvswitch_mod && \
return 0
action "Inserting openvswitch module" modprobe openvswitch
}
-insert_brcompat_mod_if_required () {
- if test -e /sys/module/bridge; then
- log_warning_msg "bridge module is loaded, not loading brcompat"
- return 1
- fi
- test -e /sys/module/brcompat -o -e /sys/module/brcompat_mod && return 0
- action "Inserting brcompat module" modprobe brcompat
-}
-
-insert_mod_if_required () {
- insert_openvswitch_mod_if_required || return 1
- if test X"$BRCOMPAT" = Xyes; then
- if insert_brcompat_mod_if_required; then
- :
- else
- log_warning_msg "could not load brcompat module, disabling bridge compatibility"
- BRCOMPAT=no
- fi
- fi
-}
-
ovs_vsctl () {
- ovs-vsctl --no-wait --timeout=5 "$@"
+ ovs-vsctl --no-wait "$@"
}
ovsdb_tool () {
action "Configuring Open vSwitch system IDs" "$@" $extra_ids
}
-start () {
+check_force_cores () {
if test X"$FORCE_COREFILES" = Xyes; then
- ulimit -Sc 67108864
+ ulimit -c 67108864
fi
+}
- insert_mod_if_required || return 1
+start_ovsdb () {
+ check_force_cores
if daemon_is_running ovsdb-server; then
log_success_msg "ovsdb-server is already running"
# Start ovsdb-server.
set ovsdb-server "$DB_FILE"
+ for db in $EXTRA_DBS; do
+ case $db in
+ /*) ;;
+ *) db=$dbdir/$db ;;
+ esac
+
+ if test ! -f "$db"; then
+ log_warning_msg "$db (from \$EXTRA_DBS) does not exist."
+ elif ovsdb-tool db-version "$db" >/dev/null; then
+ set "$@" "$db"
+ else
+ log_warning_msg "$db (from \$EXTRA_DBS) cannot be read as a database (see error message above)"
+ fi
+ done
set "$@" -vconsole:emer -vsyslog:err -vfile:info
set "$@" --remote=punix:"$DB_SOCK"
- set "$@" --remote=db:Open_vSwitch,manager_options
- set "$@" --private-key=db:SSL,private_key
- set "$@" --certificate=db:SSL,certificate
- set "$@" --bootstrap-ca-cert=db:SSL,ca_cert
+ set "$@" --private-key=db:Open_vSwitch,SSL,private_key
+ set "$@" --certificate=db:Open_vSwitch,SSL,certificate
+ set "$@" --bootstrap-ca-cert=db:Open_vSwitch,SSL,ca_cert
start_daemon "$OVSDB_SERVER_PRIORITY" "$OVSDB_SERVER_WRAPPER" "$@" \
|| return 1
done
fi
fi
+}
+
+add_managers () {
+ # Now that ovs-vswitchd has started and completed its initial
+ # configuration, tell ovsdb-server to conenct to the remote managers. We
+ # used to do this at ovsdb-server startup time, but waiting for
+ # ovs-vswitchd to finish configuring means that remote managers see less
+ # churn in the database at startup or restart. (For example, managers
+ # won't briefly see empty datapath-id or ofport columns for records that
+ # exist at startup.)
+ action "Enabling remote OVSDB managers" \
+ ovs-appctl -t ovsdb-server ovsdb-server/add-remote \
+ db:Open_vSwitch,Open_vSwitch,manager_options
+}
+
+start_forwarding () {
+ check_force_cores
+
+ insert_mod_if_required || return 1
if daemon_is_running ovs-vswitchd; then
log_success_msg "ovs-vswitchd is already running"
else
# Increase the limit on the number of open file descriptors.
- # ovs-vswitchd needs 16 per datapath, plus a few extra, so this
- # should allow for 256 (or more) bridges.
- ulimit -n 5000
+ # On Linux, ovs-vswitchd needs about three file descriptors
+ # per bridge and one file descriptor per bridge port, so this
+ # allows a very large number of bridges and ports.
+ ulimit -n 7500
# Start ovs-vswitchd.
set ovs-vswitchd unix:"$DB_SOCK"
fi
start_daemon "$OVS_VSWITCHD_PRIORITY" "$OVS_VSWITCHD_WRAPPER" "$@"
fi
-
- if daemon_is_running ovs-brcompatd; then
- log_success_msg "ovs-brcompatd is already running"
- elif test X"$BRCOMPAT" = Xyes; then
- set ovs-brcompatd
- set "$@" -vconsole:emer -vsyslog:err -vfile:info
- start_daemon "$OVS_BRCOMPATD_PRIORITY" "$OVS_BRCOMPATD_WRAPPER" "$@"
- fi
}
## ---- ##
## stop ##
## ---- ##
-stop () {
- stop_daemon ovs-brcompatd
- stop_daemon ovs-vswitchd
+stop_ovsdb () {
stop_daemon ovsdb-server
}
+stop_forwarding () {
+ stop_daemon ovs-vswitchd
+}
+
## ----------------- ##
## force-reload-kmod ##
## ----------------- ##
done
}
+ovs_save () {
+ bridges=`ovs_vsctl -- --real list-br`
+ if [ -n "${bridges}" ] && \
+ "$datadir/scripts/ovs-save" "$1" ${bridges} > "$2"; then
+ chmod +x "$2"
+ return 0
+ fi
+ [ -z "${bridges}" ] && return 0
+}
+
+save_ofports_if_required () {
+ # Save ofports if we are upgrading from a pre-1.10 branch.
+ case `ovs-appctl version | sed 1q` in
+ "ovs-vswitchd (Open vSwitch) 1."[0-9].*)
+ action "Saving ofport values" ovs_save save-ofports \
+ "${script_ofports}"
+ ;;
+ esac
+}
+
save_interfaces () {
- "$datadir/scripts/ovs-save" $ifaces > "$script"
+ "$datadir/scripts/ovs-save" save-interfaces ${ifaces} \
+ > "${script_interfaces}"
+}
+
+restore_ofports () {
+ [ -x "${script_ofports}" ] && \
+ action "Restoring ofport values" "${script_ofports}"
+}
+
+flow_restore_wait () {
+ ovs_vsctl set open_vswitch . other_config:flow-restore-wait="true"
+}
+
+flow_restore_complete () {
+ ovs_vsctl --if-exists remove open_vswitch . other_config \
+ flow-restore-wait="true"
+}
+
+restore_flows () {
+ [ -x "${script_flows}" ] && \
+ action "Restoring saved flows" "${script_flows}"
+}
+
+restore_interfaces () {
+ [ ! -x "${script_interfaces}" ] && return 0
+ action "Restoring interface configuration" "${script_interfaces}"
+ rc=$?
+ if test $rc = 0; then
+ level=debug
+ else
+ level=err
+ fi
+ log="logger -p daemon.$level -t ovs-save"
+ $log "interface restore script exited with status $rc:"
+ $log -f "$script_interfaces"
+}
+
+init_restore_scripts () {
+ script_interfaces=`mktemp`
+ script_flows=`mktemp`
+ script_ofports=`mktemp`
+ trap 'rm -f "${script_interfaces}" "${script_flows}" "${script_ofports}"' 0
}
force_reload_kmod () {
ifaces=`internal_interfaces`
action "Detected internal interfaces: $ifaces" true
- stop
+ init_restore_scripts
+
+ action "Saving flows" ovs_save save-flows "${script_flows}"
+
+ save_ofports_if_required
+
+ # Restart the database first, since a large database may take a
+ # while to load, and we want to minimize forwarding disruption.
+ stop_ovsdb
+ start_ovsdb
+
+ # Restore of ofports should happen before vswitchd is restarted.
+ restore_ofports
+
+ stop_forwarding
- script=`mktemp`
- trap 'rm -f "$script"' 0 1 2 13 15
if action "Saving interface configuration" save_interfaces; then
:
else
log_warning_msg "Failed to save configuration, not replacing kernel module"
- start
+ start_forwarding
+ add_managers
exit 1
fi
- chmod +x "$script"
+ chmod +x "$script_interfaces"
for dp in `ovs-dpctl dump-dps`; do
action "Removing datapath: $dp" ovs-dpctl del-dp "$dp"
done
# try both old and new names in case this is post upgrade
- if test -e /sys/module/brcompat_mod; then
- action "Removing brcompat module" rmmod brcompat_mod
- elif test -e /sys/module/brcompat; then
- action "Removing brcompat module" rmmod brcompat
- fi
if test -e /sys/module/openvswitch_mod; then
action "Removing openvswitch module" rmmod openvswitch_mod
elif test -e /sys/module/openvswitch; then
action "Removing openvswitch module" rmmod openvswitch
fi
- start
+ # Start vswitchd by asking it to wait till flow restore is finished.
+ flow_restore_wait
+ start_forwarding
- action "Restoring interface configuration" "$script"
- rc=$?
- if test $rc = 0; then
- level=debug
- else
- level=err
- fi
- log="logger -p daemon.$level -t ovs-save"
- $log "force-reload-kmod interface restore script exited with status $rc:"
- $log -f "$script"
+ # Restore saved flows and inform vswitchd that we are done.
+ restore_flows
+ flow_restore_complete
+ add_managers
+
+ restore_interfaces
"$datadir/scripts/ovs-check-dead-ifs"
}
+## ------- ##
+## restart ##
+## ------- ##
+
+save_interfaces_if_required () {
+ # Save interfaces if we are upgrading from a pre-1.10 branch.
+ case `ovs-appctl version | sed 1q` in
+ "ovs-vswitchd (Open vSwitch) 1."[0-9].*)
+ ifaces=`internal_interfaces`
+ action "Detected internal interfaces: $ifaces" true
+ if action "Saving interface configuration" save_interfaces; then
+ chmod +x "$script_interfaces"
+ fi
+ ;;
+ esac
+}
+
+restart () {
+ if daemon_is_running ovsdb-server && daemon_is_running ovs-vswitchd; then
+ init_restore_scripts
+ save_interfaces_if_required
+ action "Saving flows" ovs_save save-flows "${script_flows}"
+ save_ofports_if_required
+ fi
+
+ # Restart the database first, since a large database may take a
+ # while to load, and we want to minimize forwarding disruption.
+ stop_ovsdb
+ start_ovsdb
+
+ # Restore of ofports, if required, should happen before vswitchd is
+ # restarted.
+ restore_ofports
+
+ stop_forwarding
+
+ # Start vswitchd by asking it to wait till flow restore is finished.
+ flow_restore_wait
+ start_forwarding
+
+ # Restore saved flows and inform vswitchd that we are done.
+ restore_flows
+ flow_restore_complete
+ add_managers
+
+ # Restore the interfaces if required. Return true even if restore fails.
+ restore_interfaces || true
+}
+
## --------------- ##
## enable-protocol ##
## --------------- ##
SYSTEM_ID=
DELETE_BRIDGES=no
- BRCOMPAT=no
DAEMON_CWD=/
FORCE_COREFILES=yes
MLOCKALL=yes
OVSDB_SERVER_PRIORITY=-10
OVS_VSWITCHD_PRIORITY=-10
- OVS_BRCOMPATD_PRIORITY=-10
OVSDB_SERVER_WRAPPER=
OVS_VSWITCHD_WRAPPER=
- OVS_BRCOMPATD_WRAPPER=
- DB_FILE=$etcdir/conf.db
+ DB_FILE=$dbdir/conf.db
DB_SOCK=$rundir/db.sock
DB_SCHEMA=$datadir/vswitch.ovsschema
+ EXTRA_DBS=
PROTOCOL=gre
DPORT=
Commands:
start start Open vSwitch daemons
stop stop Open vSwitch daemons
+ restart stop and start Open vSwitch daemons
status check whether Open vSwitch daemons are running
version print versions of Open vSwitch daemons
load-kmod insert modules if not already present
enable-protocol enable protocol specified in options with iptables
help display this help message
-One of the following options is required for "start" and "force-reload-kmod":
+One of the following options is required for "start", "restart" and "force-reload-kmod":
--system-id=UUID set specific ID to uniquely identify this system
--system-id=random use a random but persistent UUID to identify this system
-Other important options for "start" and "force-reload-kmod":
+Other important options for "start", "restart" and "force-reload-kmod":
--system-type=TYPE set system type (e.g. "XenServer")
--system-version=VERSION set system version (e.g. "5.6.100-39265p")
--external-id="key=value"
add given key-value pair to Open_vSwitch external-ids
--delete-bridges delete all bridges just before starting ovs-vswitchd
-Less important options for "start" and "force-reload-kmod":
+Less important options for "start", "restart" and "force-reload-kmod":
--daemon-cwd=DIR set working dir for OVS daemons (default: $DAEMON_CWD)
--no-force-corefiles do not force on core dumps for OVS daemons
--no-mlockall do not lock all of ovs-vswitchd into memory
--ovsdb-server-priority=NICE set ovsdb-server's niceness (default: $OVSDB_SERVER_PRIORITY)
--ovs-vswitchd-priority=NICE set ovs-vswitchd's niceness (default: $OVS_VSWITCHD_PRIORITY)
- --ovs-brcompatd-priority=NICE set ovs-brcompatd's niceness (default: $OVS_BRCOMPATD_PRIORITY)
-Debugging options for "start" and "force-reload-kmod":
+Debugging options for "start", "restart" and "force-reload-kmod":
--ovsdb-server-wrapper=WRAPPER
--ovs-vswitchd-wrapper=WRAPPER
--ovs-vswitchd-wrapper=WRAPPER
run specified daemon under WRAPPER (either 'valgrind' or 'strace')
-Options for "start", "force-reload-kmod", "load-kmod", "status", and "version":
- --brcompat enable Linux bridge compatibility module and daemon
-
File location options:
--db-file=FILE database file name (default: $DB_FILE)
--db-sock=SOCKET JSON-RPC socket name (default: $DB_SOCK)
-V, --version display version information
Default directories with "configure" option and environment variable override:
- logs: @LOGDIR@ (--log-dir, OVS_LOGDIR)
- pidfiles and sockets: @RUNDIR@ (--run-dir, OVS_RUNDIR)
+ logs: @LOGDIR@ (--with-logdir, OVS_LOGDIR)
+ pidfiles and sockets: @RUNDIR@ (--with-rundir, OVS_RUNDIR)
+ conf.db: @DBDIR@ (--with-dbdir, OVS_DBDIR)
system configuration: @sysconfdir@ (--sysconfdir, OVS_SYSCONFDIR)
data files: @pkgdatadir@ (--pkgdatadir, OVS_PKGDATADIR)
user binaries: @bindir@ (--bindir, OVS_BINDIR)
daemons () {
echo ovsdb-server ovs-vswitchd
- if test X"$BRCOMPAT" = Xyes; then
- echo ovs-brcompatd
- fi
}
set_defaults
done
case $command in
start)
- start
+ start_ovsdb
+ start_forwarding
+ add_managers
;;
stop)
- stop
+ stop_forwarding
+ stop_ovsdb
+ ;;
+ restart)
+ restart
;;
status)
rc=0
exit 1
;;
esac
-
git://git.onelab.eu / sliver-openvswitch.git / blobdiff