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https://github.com/openvswitch/ovs
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Open vSwitch bridges and ports can be configured through the /etc/network/interfaces script. During system startup, Open vSwitch startup script reads the interfaces file and creates the bridges and ports. During system shutdown, the bridges and ports are removed. The same behavior also can occur with a manual 'restart' of Open vswitch (ex: service openvswitch-switch restart). This behavior has come across as undesirable in some cases. ex: When some one manually creates interfaces through ovs-vsctl and then restarts Open vSwitch, that interface is lost. This commit changes the startup script such that, interfaces are created and deleted through the startup script only when RUNLEVEL environment variable is set. This behavior will be consistent with the OVS RHEL ifcfg-* scripts too. Signed-off-by: Gurucharan Shetty <gshetty@nicira.com> Acked-by: Ben Pfaff <blp@nicira.com>
145 lines
4.3 KiB
Bash
Executable File
145 lines
4.3 KiB
Bash
Executable File
#! /bin/sh
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#
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# Copyright (C) 2011, 2012 Nicira, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at:
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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### BEGIN INIT INFO
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# Provides: openvswitch-switch
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# Required-Start: $network $named $remote_fs $syslog
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# Required-Stop: $remote_fs
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# Default-Start: 2 3 4 5
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# Default-Stop: 0 1 6
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# Short-Description: Open vSwitch switch
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# Description: openvswitch-switch provides the userspace components and utilities for
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# the Open vSwitch kernel-based switch.
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### END INIT INFO
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(test -x /usr/sbin/ovs-vswitchd && test -x /usr/sbin/ovsdb-server) || exit 0
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. /usr/share/openvswitch/scripts/ovs-lib
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test -e /etc/default/openvswitch-switch && . /etc/default/openvswitch-switch
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network_interfaces () {
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[ -z "${RUNLEVEL}" ] && return
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INTERFACES="/etc/network/interfaces"
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[ -e "${INTERFACES}" ] || return
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bridges=`awk '{ if ($1 == "allow-ovs") { print $2; } }' "${INTERFACES}"`
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[ -n "${bridges}" ] && $1 --allow=ovs ${bridges}
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}
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load_kmod () {
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ovs_ctl load-kmod || exit $?
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}
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start () {
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if ovs_ctl load-kmod; then
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:
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else
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echo "Module has probably not been built for this kernel."
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if ! test -d /usr/share/doc/openvswitch-datapath-source; then
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echo "Install the openvswitch-datapath-source package, then read"
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else
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echo "For instructions, read"
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fi
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echo "/usr/share/doc/openvswitch-datapath-source/README.Debian"
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if test X"$OVS_MISSING_KMOD_OK" = Xyes; then
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# We're being invoked by the package postinst. Do not
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# fail package installation just because the kernel module
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# is not available.
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exit 0
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fi
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fi
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set ovs_ctl ${1-start} --system-id=random
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if test X"$FORCE_COREFILES" != X; then
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set "$@" --force-corefiles="$FORCE_COREFILES"
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fi
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set "$@" $OVS_CTL_OPTS
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"$@" || exit $?
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[ "$2" = "start" ] && network_interfaces ifup
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}
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stop () {
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network_interfaces ifdown
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ovs_ctl stop
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}
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restart () {
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# OVS_FORCE_RELOAD_KMOD can be set by package postinst script.
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if [ "$1" = "--save-flows=yes" ] || \
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[ "${OVS_FORCE_RELOAD_KMOD}" = "no" ]; then
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start restart
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elif [ "${OVS_FORCE_RELOAD_KMOD}" = "yes" ]; then
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depmod -a
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if [ -e /sys/module/openvswitch ]; then
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LOADED_SRCVERSION=`cat /sys/module/openvswitch/srcversion`
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LOADED_VERSION=`cat /sys/module/openvswitch/version`
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elif [ -e /sys/module/openvswitch_mod ]; then
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LOADED_SRCVERSION=`cat /sys/module/openvswitch_mod/srcversion`
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LOADED_VERSION=`cat /sys/module/openvswitch_mod/version`
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fi
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SRCVERSION=`modinfo -F srcversion openvswitch 2>/dev/null`
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VERSION=`modinfo -F version openvswitch 2>/dev/null`
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ovs_ctl_log "Package upgrading:\n"\
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"Loaded version: ${LOADED_VERSION} ${LOADED_SRCVERSION}.\n"\
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"Version on disk: ${VERSION} ${SRCVERSION}."
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# If the kernel module was previously loaded and it is different than
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# the kernel module on disk, then do a 'force-reload-kmod'.
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if [ -n "${LOADED_SRCVERSION}" ] && [ -n "${SRCVERSION}" ] && \
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[ "${SRCVERSION}" != "${LOADED_SRCVERSION}" ]; then
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start force-reload-kmod
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else
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start restart
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fi
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else
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stop
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start
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fi
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}
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case $1 in
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start)
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start
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;;
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stop | force-stop)
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stop
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;;
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reload | force-reload)
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# The OVS daemons keep up-to-date.
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;;
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restart)
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shift
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restart "$@"
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;;
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status)
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ovs_ctl status
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exit $?
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;;
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force-reload-kmod)
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start force-reload-kmod
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;;
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load-kmod)
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load_kmod
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;;
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*)
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echo "Usage: $0 {start|stop|restart|force-reload|status|force-stop|force-reload-kmod|load-kmod}" >&2
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exit 1
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;;
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esac
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exit 0
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