rhel/etc_sysconfig_network-scripts_ifup-ovs

   1 #!/bin/bash
   2
   3 # Copyright (c) 2011 Alexey I. Froloff.
   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 . /etc/init.d/functions
  18
  19 cd /etc/sysconfig/network-scripts
  20 . ./network-functions
  21
  22 [ -f ../network ] && . ../network
  23
  24 CONFIG=${1}
  25 TIMEOUT=10
  26
  27 need_config ${CONFIG}
  28
  29 source_config
  30
  31 OTHERSCRIPT="/etc/sysconfig/network-scripts/ifup-${REAL_DEVICETYPE}"
  32
  33 if [ ! -x ${OTHERSCRIPT} ]; then
  34         OTHERSCRIPT="/etc/sysconfig/network-scripts/ifup-eth"
  35 fi
  36
  37 check_recursion ()
  38 {
  39         [ -n "${UPPEDSTACK}" ] && for _r in ${UPPEDSTACK}; do
  40                 [ "$_r" = "$1" ] && return 1
  41         done
  42
  43         return 0
  44 }
  45
  46 ifup_ovs_bridge ()
  47 {
  48         if ovs-vsctl br-exists "${OVS_BRIDGE}"; then :; else
  49                 /sbin/ifup "${OVS_BRIDGE}"
  50         fi
  51 }
  52
  53 if [ -z "${UPPEDSTACK}" ]; then
  54         UPPEDSTACK="${DEVICE}"
  55 fi
  56
  57 [ -n "${OVSREQUIRES}" ] && for _i in ${OVSREQUIRES}; do
  58         if ( check_recursion "$_i" ); then
  59                 UPPEDSTACK="${UPPEDSTACK} $_i" /sbin/ifup "$_i"
  60         fi
  61 done
  62
  63 [ -f /var/lock/subsys/openvswitch ] || /sbin/service openvswitch start
  64
  65 case "$TYPE" in
  66         OVSBridge)
  67                 # If bridge already exists and is up, it has been configured through
  68                 # other cases like OVSPort, OVSIntPort and OVSBond. If it is down or
  69                 # it does not exist, create it. It is possible for a bridge to exist
  70                 # because it remained in the OVSDB for some reason, but it won't be up.
  71                 if check_device_down "${DEVICE}"; then
  72                         ovs-vsctl -t ${TIMEOUT} -- --may-exist add-br "$DEVICE" $OVS_OPTIONS \
  73                         ${OVS_EXTRA+-- $OVS_EXTRA} \
  74                         ${STP+-- set bridge "$DEVICE" stp_enable="${STP}"}
  75                 else
  76                         OVSBRIDGECONFIGURED="yes"
  77                 fi
  78
  79                 # When dhcp is enabled, the assumption is that there will be a port to
  80                 # attach (otherwise, we can't reach out for dhcp). So, we do not
  81                 # configure the bridge through rhel's ifup infrastructure unless
  82                 # it is being configured after the port has been configured.
  83                 # The "OVSINTF" is set only after the port is configured.
  84                 if [ "${OVSBOOTPROTO}" = "dhcp" ] && [ -n "${OVSINTF}" ]; then
  85                         case " ${OVSDHCPINTERFACES} " in
  86                                 *" ${OVSINTF} "*)
  87                                         BOOTPROTO=dhcp ${OTHERSCRIPT} ${CONFIG}
  88                                 ;;
  89                         esac
  90                 fi
  91
  92                 # When dhcp is not enabled, it is possible that someone may want
  93                 # a standalone bridge (i.e it may not have any ports). Configure it.
  94                 if [ "${OVSBOOTPROTO}" != "dhcp" ] && [ -z "${OVSINTF}" ] && \
  95                         [ "${OVSBRIDGECONFIGURED}" != "yes" ]; then
  96                         ${OTHERSCRIPT} ${CONFIG}
  97                 fi
  98                 exit 0
  99                 ;;
 100         OVSPort)
 101                 ifup_ovs_bridge
 102                 ${OTHERSCRIPT} ${CONFIG} ${2}
 103                 ovs-vsctl -t ${TIMEOUT} -- --may-exist add-port "$OVS_BRIDGE" "$DEVICE" $OVS_OPTIONS ${OVS_EXTRA+-- $OVS_EXTRA}
 104                 OVSINTF=${DEVICE} /sbin/ifup "$OVS_BRIDGE"
 105                 ;;
 106         OVSIntPort)
 107                 ifup_ovs_bridge
 108                 ovs-vsctl -t ${TIMEOUT} -- --may-exist add-port "$OVS_BRIDGE" "$DEVICE" $OVS_OPTIONS -- set Interface "$DEVICE" type=internal ${OVS_EXTRA+-- $OVS_EXTRA}
 109                 ${OTHERSCRIPT} ${CONFIG} ${2}
 110                 ;;
 111         OVSBond)
 112                 ifup_ovs_bridge
 113                 for _iface in $BOND_IFACES; do
 114                         /sbin/ifup ${_iface}
 115                 done
 116                 ovs-vsctl -t ${TIMEOUT} -- --fake-iface add-bond "$OVS_BRIDGE" "$DEVICE" ${BOND_IFACES} $OVS_OPTIONS ${OVS_EXTRA+-- $OVS_EXTRA}
 117                 ${OTHERSCRIPT} ${CONFIG} ${2}
 118                 OVSINTF=${DEVICE} /sbin/ifup "$OVS_BRIDGE"
 119                 ;;
 120         *)
 121                 echo $"Invalid OVS interface type $TYPE"
 122                 exit 1
 123                 ;;
 124 esac