116 lines
3.3 KiB
Bash
Executable File
116 lines
3.3 KiB
Bash
Executable File
#!/bin/bash
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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INT_BRIDGE="br-int"
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HYBRID_PLUG="'ovs_hybrid_plug': True"
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OPERATION=$1
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PORT=$2
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VETH=$3
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CONTAINER_UUID=$4
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MAC_ADDRESS=$5
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ovs_bind_port() {
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echo "plugging veth $VETH (Neutron port $PORT)..."
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ovs-vsctl -- --may-exist add-port $INT_BRIDGE $VETH -- \
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set interface $VETH external_ids:attached-mac=$MAC_ADDRESS \
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external_ids:iface-id=$PORT external_ids:vm-uuid=$CONTAINER_UUID \
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external_ids:iface-status=active external_ids:owner=kuryr
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}
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ovs_unbind_port() {
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echo "unplugging port $PORT..."
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MYPORT=`ovs-vsctl --data=bare --no-heading --columns=name \
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find interface external_ids:iface-id=$PORT \
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external_ids:owner=kuryr`
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if [ -z "$MYPORT" ]; then
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echo >&2 "Failed to find port $PORT."
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exit 1
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fi
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ovs-vsctl del-port $INT_BRIDGE $MYPORT
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}
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ovs_hybrid_bind_port() {
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echo "... plugging veth $VETH (Neutron port $PORT) ..."
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# create a linux bridge
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br_name="qbr"${PORT:0:11}
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ip link add name $br_name type bridge
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# Using brctl allows containerized usage not to need privileged mode
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# as sysfs is mounted read-only when running with just CAP_NET_ADMIN
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brctl setfd $br_name 0
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brctl stp $br_name off
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# connect the veth outside to linux bridge
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ip link set $VETH up
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ip link set dev $VETH master $br_name
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# create a veth pair to connect linux bridge and the integration bridge
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veth_lb="qvb"${PORT:0:11}
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veth_ovs="qvo"${PORT:0:11}
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ip link add $veth_lb type veth peer name $veth_ovs
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# connect one end to the linux bridge
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ip link set dev $veth_lb master $br_name
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ip link set $br_name up
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# connect one end to the ovs integration bridge
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ovs-vsctl add-port $INT_BRIDGE $veth_ovs -- \
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set interface $veth_ovs external_ids:attached-mac=$MAC_ADDRESS \
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external_ids:iface-id=$PORT external_ids:vm-id=$CONTAINER_UUID \
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external_ids:iface-status=active external_ids:owner=kuryr
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ip link set $veth_lb up
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ip link set $veth_ovs up
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}
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ovs_hybrid_unbind_port() {
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echo "unplugging port $PORT ..."
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br_name="qbr"${PORT:0:11}
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veth_lb="qvb"${PORT:0:11}
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veth_ovs="qvo"${PORT:0:11}
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ip link set dev $veth_lb nomaster
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ovs-vsctl del-port $veth_ovs
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ip link delete $veth_lb type veth
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ip link set $br_name down
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ip link delete $br_name type bridge
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}
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case $OPERATION in
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"bind")
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shift
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if [ "${7/$HYBRID_PLUG}" = "$7" ]
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then
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ovs_bind_port
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else
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ovs_hybrid_bind_port
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fi
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exit 0
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;;
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"unbind")
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shift
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if [ "${5/$HYBRID_PLUG}" = "$5" ]
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then
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ovs_unbind_port
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else
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ovs_hybrid_unbind_port
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fi
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exit 0
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;;
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*)
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echo >&2 "$0: Invalid command $OPERATION."
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exit 1
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;;
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esac
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