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:     $remote_fs
  21 # Default-Start:     2 3 4 5
  22 # Default-Stop:      0 1 6
  23 # Short-Description: Open vSwitch switch
  24 # Description:       openvswitch-switch provides the userspace components and utilities for
  25 #                    the Open vSwitch kernel-based switch.
  26 ### END INIT INFO
  27
  28 (test -x /usr/sbin/ovs-vswitchd && test -x /usr/sbin/ovsdb-server) || exit 0
  29
  30 _SYSTEMCTL_SKIP_REDIRECT=yes
  31 SYSTEMCTL_SKIP_REDIRECT=yes
  32
  33 . /usr/share/openvswitch/scripts/ovs-lib
  34 test -e /etc/default/openvswitch-switch && . /etc/default/openvswitch-switch
  35
  36 network_interfaces () {
  37     INTERFACES="/etc/network/interfaces"
  38     [ -e "${INTERFACES}" ] || return
  39     bridges=`ifquery --allow ovs --list`
  40     [ -n "${bridges}" ] && $1 --allow=ovs ${bridges}
  41 }
  42
  43 load_kmod () {
  44     ovs_ctl load-kmod || exit $?
  45 }
  46
  47 start () {
  48     if ovs_ctl load-kmod; then
  49         :
  50     else
  51         echo "Module has probably not been built for this kernel."
  52         if ! test -d /usr/share/doc/openvswitch-datapath-source; then
  53             echo "Install the openvswitch-datapath-source package, then read"
  54         else
  55             echo "For instructions, read"
  56         fi
  57         echo "/usr/share/doc/openvswitch-datapath-source/README.Debian"
  58
  59         if test X"$OVS_MISSING_KMOD_OK" = Xyes; then
  60             # We're being invoked by the package postinst.  Do not
  61             # fail package installation just because the kernel module
  62             # is not available.
  63             exit 0
  64         fi
  65     fi
  66     set ovs_ctl ${1-start} --system-id=random
  67     if test X"$FORCE_COREFILES" != X; then
  68         set "$@" --force-corefiles="$FORCE_COREFILES"
  69     fi
  70     set "$@" $OVS_CTL_OPTS
  71     "$@" || exit $?
  72     if [ "$2" = "start" ] && [ "$READ_INTERFACES" != "no" ]; then
  73         network_interfaces ifup
  74     fi
  75 }
  76
  77 stop () {
  78     [ "$READ_INTERFACES" != "no" ] && network_interfaces ifdown
  79     ovs_ctl stop
  80 }
  81
  82 restart () {
  83     # OVS_FORCE_RELOAD_KMOD can be set by package postinst script.
  84     if [ "$1" = "--save-flows=yes" ] || \
  85         [ "${OVS_FORCE_RELOAD_KMOD}" = "no" ]; then
  86         start restart
  87     elif [ "${OVS_FORCE_RELOAD_KMOD}" = "yes" ]; then
  88         depmod -a
  89
  90         if [ -e /sys/module/openvswitch ]; then
  91             LOADED_SRCVERSION=`cat /sys/module/openvswitch/srcversion \
  92                                2>/dev/null`
  93             LOADED_VERSION=`cat /sys/module/openvswitch/version \
  94                             2>/dev/null`
  95         fi
  96         SRCVERSION=`modinfo -F srcversion openvswitch 2>/dev/null`
  97         VERSION=`modinfo -F version openvswitch 2>/dev/null`
  98
  99         ovs_ctl_log "Package upgrading:\n"\
 100                     "Loaded version: ${LOADED_VERSION} ${LOADED_SRCVERSION}.\n"\
 101                     "Version on disk: ${VERSION} ${SRCVERSION}."
 102
 103         # If the kernel module was previously loaded and it is different than
 104         # the kernel module on disk, then do a 'force-reload-kmod'.
 105         if [ -n "${LOADED_SRCVERSION}" ] && [ -n "${SRCVERSION}" ] && \
 106             [ "${SRCVERSION}" != "${LOADED_SRCVERSION}" ]; then
 107             start force-reload-kmod
 108         else
 109             start restart
 110         fi
 111     else
 112         READ_INTERFACES="no" stop
 113         READ_INTERFACES="no" start
 114     fi
 115 }
 116
 117 case $1 in
 118     start)
 119         start
 120         ;;
 121     stop | force-stop)
 122         stop
 123         ;;
 124     reload | force-reload)
 125         # The OVS daemons keep up-to-date.
 126         ;;
 127     restart)
 128         shift
 129         restart "$@"
 130         ;;
 131     status)
 132         ovs_ctl status
 133         exit $?
 134         ;;
 135     force-reload-kmod)
 136         start force-reload-kmod
 137         ;;
 138     load-kmod)
 139         load_kmod
 140         ;;
 141     *)
 142         echo "Usage: $0 {start|stop|restart|force-reload|status|force-stop|force-reload-kmod|load-kmod}" >&2
 143         exit 1
 144         ;;
 145 esac
 146
 147 exit 0