debian/openvswitch-switch.init

   1 #! /bin/sh
   2 #
   3 # Copyright (C) 2011, 2012, 2016 Nicira, Inc.
   4 #
   5 # Licensed under the Apache License, Version 2.0 (the "License");
   6 # you may not use this file except in compliance with the License.
   7 # You may obtain a copy of the License at:
   8 #
   9 #     http://www.apache.org/licenses/LICENSE-2.0
  10 #
  11 # Unless required by applicable law or agreed to in writing, software
  12 # distributed under the License is distributed on an "AS IS" BASIS,
  13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 # See the License for the specific language governing permissions and
  15 # limitations under the License.
  16 #
  17 ### BEGIN INIT INFO
  18 # Provides:          openvswitch-switch
  19 # Required-Start:    $network $named $remote_fs $syslog
  20 # Required-Stop:     $remote_fs
  21 # Default-Start:     2 3 4 5
  22 # Default-Stop:      0 1 6
  23 # Short-Description: Open vSwitch switch
  24 # Description:       openvswitch-switch provides the userspace components and utilities for
  25 #                    the Open vSwitch kernel-based switch.
  26 ### END INIT INFO
  27
  28 (test -x /usr/sbin/ovs-vswitchd && test -x /usr/sbin/ovsdb-server) || exit 0
  29
  30 _SYSTEMCTL_SKIP_REDIRECT=yes
  31
  32 . /usr/share/openvswitch/scripts/ovs-lib
  33 test -e /etc/default/openvswitch-switch && . /etc/default/openvswitch-switch
  34
  35 network_interfaces () {
  36     INTERFACES="/etc/network/interfaces"
  37     [ -e "${INTERFACES}" ] || return
  38     bridges=`ifquery --allow ovs --list`
  39     [ -n "${bridges}" ] && $1 --allow=ovs ${bridges}
  40 }
  41
  42 load_kmod () {
  43     ovs_ctl load-kmod || exit $?
  44 }
  45
  46 start () {
  47     if ovs_ctl load-kmod; then
  48         :
  49     else
  50         echo "Module has probably not been built for this kernel."
  51         if ! test -d /usr/share/doc/openvswitch-datapath-source; then
  52             echo "Install the openvswitch-datapath-source package, then read"
  53         else
  54             echo "For instructions, read"
  55         fi
  56         echo "/usr/share/doc/openvswitch-datapath-source/README.Debian"
  57
  58         if test X"$OVS_MISSING_KMOD_OK" = Xyes; then
  59             # We're being invoked by the package postinst.  Do not
  60             # fail package installation just because the kernel module
  61             # is not available.
  62             exit 0
  63         fi
  64     fi
  65     set ovs_ctl ${1-start} --system-id=random
  66     if test X"$FORCE_COREFILES" != X; then
  67         set "$@" --force-corefiles="$FORCE_COREFILES"
  68     fi
  69     set "$@" $OVS_CTL_OPTS
  70     "$@" || exit $?
  71     if [ "$2" = "start" ] && [ "$READ_INTERFACES" != "no" ]; then
  72         network_interfaces ifup
  73     fi
  74 }
  75
  76 stop () {
  77     [ "$READ_INTERFACES" != "no" ] && network_interfaces ifdown
  78     ovs_ctl stop
  79 }
  80
  81 restart () {
  82     # OVS_FORCE_RELOAD_KMOD can be set by package postinst script.
  83     if [ "$1" = "--save-flows=yes" ] || \
  84         [ "${OVS_FORCE_RELOAD_KMOD}" = "no" ]; then
  85         start restart
  86     elif [ "${OVS_FORCE_RELOAD_KMOD}" = "yes" ]; then
  87         depmod -a
  88
  89         if [ -e /sys/module/openvswitch ]; then
  90             LOADED_SRCVERSION=`cat /sys/module/openvswitch/srcversion \
  91                                2>/dev/null`
  92             LOADED_VERSION=`cat /sys/module/openvswitch/version \
  93                             2>/dev/null`
  94         fi
  95         SRCVERSION=`modinfo -F srcversion openvswitch 2>/dev/null`
  96         VERSION=`modinfo -F version openvswitch 2>/dev/null`
  97
  98         ovs_ctl_log "Package upgrading:\n"\
  99                     "Loaded version: ${LOADED_VERSION} ${LOADED_SRCVERSION}.\n"\
 100                     "Version on disk: ${VERSION} ${SRCVERSION}."
 101
 102         # If the kernel module was previously loaded and it is different than
 103         # the kernel module on disk, then do a 'force-reload-kmod'.
 104         if [ -n "${LOADED_SRCVERSION}" ] && [ -n "${SRCVERSION}" ] && \
 105             [ "${SRCVERSION}" != "${LOADED_SRCVERSION}" ]; then
 106             start force-reload-kmod
 107         else
 108             start restart
 109         fi
 110     else
 111         READ_INTERFACES="no" stop
 112         READ_INTERFACES="no" start
 113     fi
 114 }
 115
 116 case $1 in
 117     start)
 118         start
 119         ;;
 120     stop | force-stop)
 121         stop
 122         ;;
 123     reload | force-reload)
 124         # The OVS daemons keep up-to-date.
 125         ;;
 126     restart)
 127         shift
 128         restart "$@"
 129         ;;
 130     status)
 131         ovs_ctl status
 132         exit $?
 133         ;;
 134     force-reload-kmod)
 135         start force-reload-kmod
 136         ;;
 137     load-kmod)
 138         load_kmod
 139         ;;
 140     *)
 141         echo "Usage: $0 {start|stop|restart|force-reload|status|force-stop|force-reload-kmod|load-kmod}" >&2
 142         exit 1
 143         ;;
 144 esac
 145
 146 exit 0