ONOS-688 (ONOS-1835,1836,1837) :
- Implements features to create and remove tunnels and tunnel flow policies.
- Implements REST API to create/show/delete tunnels and policies.
- Supports only single instance for now.
- Fix "apply" actions to "write" actions of all flow rules
Change-Id: I3740ed82fed8eab4ab8b03839192da72d3e223f1
diff --git a/src/main/java/org/onosproject/segmentrouting/DefaultTunnel.java b/src/main/java/org/onosproject/segmentrouting/DefaultTunnel.java
new file mode 100644
index 0000000..f1c0216
--- /dev/null
+++ b/src/main/java/org/onosproject/segmentrouting/DefaultTunnel.java
@@ -0,0 +1,168 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.segmentrouting;
+
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.Link;
+import org.onosproject.segmentrouting.grouphandler.NeighborSet;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+/**
+ * Tunnel class.
+ */
+public class DefaultTunnel implements Tunnel {
+
+ private static final Logger log = LoggerFactory
+ .getLogger(DefaultTunnel.class);
+
+ private final String tunnelId;
+ private final List<Integer> labelIds;
+ private final SegmentRoutingManager srManager;
+ private final DeviceConfiguration config;
+
+ private int groupId;
+
+ /**
+ * Creates a Tunnel reference.
+ *
+ * @param srm SegmentRoutingManager object
+ * @param tid Tunnel ID
+ * @param labelIds Label stack of the tunnel
+ */
+ public DefaultTunnel(SegmentRoutingManager srm, String tid,
+ List<Integer> labelIds) {
+ this.srManager = checkNotNull(srm);
+ this.tunnelId = checkNotNull(tid);
+ this.labelIds = Collections.unmodifiableList(labelIds);
+ this.config = srManager.deviceConfiguration;
+ this.groupId = -1;
+ }
+
+ /**
+ * Creates a Tunnel reference.
+ *
+ * @param tid Tunnel ID
+ * @param labelIds Label stack of the tunnel
+ */
+ public DefaultTunnel(String tid, List<Integer> labelIds) {
+ this.srManager = null;
+ this.tunnelId = checkNotNull(tid);
+ this.labelIds = Collections.unmodifiableList(labelIds);
+ this.config = null;
+ this.groupId = -1;
+ }
+
+ /**
+ * Creates a new DefaultTunnel reference using the tunnel reference.
+ *
+ * @param tunnel DefaultTunnel reference
+ */
+ public DefaultTunnel(DefaultTunnel tunnel) {
+ this.srManager = tunnel.srManager;
+ this.tunnelId = tunnel.tunnelId;
+ this.labelIds = tunnel.labelIds;
+ this.config = tunnel.config;
+ this.groupId = tunnel.groupId;
+ }
+
+ @Override
+ public String id() {
+ return this.tunnelId;
+ }
+
+ @Override
+ public List<Integer> labelIds() {
+ return this.labelIds;
+ }
+
+ @Override
+ public boolean create() {
+
+ if (labelIds.isEmpty() || labelIds.size() < 3) {
+ log.error("More than one router needs to specified to created a tunnel");
+ return false;
+ }
+
+ groupId = createGroupsForTunnel();
+ if (groupId < 0) {
+ log.error("Failed to create groups for the tunnel");
+ return false;
+ }
+
+ return true;
+ }
+
+ @Override
+ public boolean remove() {
+
+ DeviceId deviceId = config.getDeviceId(labelIds.get(0));
+ srManager.removeNextObjective(deviceId, groupId);
+
+ return true;
+ }
+
+ @Override
+ public int groupId() {
+ return this.groupId;
+ }
+
+ @Override
+ public DeviceId source() {
+ return config.getDeviceId(labelIds.get(0));
+ }
+
+ private int createGroupsForTunnel() {
+
+ List<Integer> portNumbers;
+
+ int groupId;
+
+ DeviceId deviceId = config.getDeviceId(labelIds.get(0));
+ if (deviceId == null) {
+ log.warn("No device found for SID {}", labelIds.get(0));
+ return -1;
+ }
+ Set<DeviceId> deviceIds = new HashSet<>();
+ int sid = labelIds.get(1);
+ if (config.isAdjacencySid(deviceId, sid)) {
+ portNumbers = config.getPortsForAdjacencySid(deviceId, sid);
+ for (Link link: srManager.linkService.getDeviceEgressLinks(deviceId)) {
+ for (Integer port: portNumbers) {
+ if (link.src().port().toLong() == port) {
+ deviceIds.add(link.dst().deviceId());
+ }
+ }
+ }
+ } else {
+ deviceIds.add(config.getDeviceId(sid));
+ }
+
+ NeighborSet ns = new NeighborSet(deviceIds, labelIds.get(2));
+ groupId = srManager.getNextObjectiveId(deviceId, ns);
+
+ return groupId;
+ }
+
+}