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-rw-r--r--framework/src/onos/apps/reactive-routing/pom.xml52
-rw-r--r--framework/src/onos/apps/reactive-routing/src/main/java/org/onosproject/reactive/routing/SdnIpReactiveRouting.java206
-rw-r--r--framework/src/onos/apps/reactive-routing/src/main/java/org/onosproject/reactive/routing/package-info.java21
3 files changed, 279 insertions, 0 deletions
diff --git a/framework/src/onos/apps/reactive-routing/pom.xml b/framework/src/onos/apps/reactive-routing/pom.xml
new file mode 100644
index 00000000..1d93cbf1
--- /dev/null
+++ b/framework/src/onos/apps/reactive-routing/pom.xml
@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ ~ 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.
+ -->
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+ xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+ xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+ <modelVersion>4.0.0</modelVersion>
+
+ <parent>
+ <groupId>org.onosproject</groupId>
+ <artifactId>onos-apps</artifactId>
+ <version>1.3.0-SNAPSHOT</version>
+ <relativePath>../pom.xml</relativePath>
+ </parent>
+
+ <artifactId>onos-app-reactive-routing</artifactId>
+ <packaging>bundle</packaging>
+
+ <description>SDN-IP reactive routing application</description>
+
+ <properties>
+ <onos.app.name>org.onosproject.reactive.routing</onos.app.name>
+ </properties>
+
+ <dependencies>
+ <dependency>
+ <groupId>org.onosproject</groupId>
+ <artifactId>onos-app-routing-api</artifactId>
+ <version>${project.version}</version>
+ </dependency>
+
+ <dependency>
+ <groupId>org.onosproject</groupId>
+ <artifactId>onos-app-routing</artifactId>
+ <version>${project.version}</version>
+ </dependency>
+ </dependencies>
+
+</project> \ No newline at end of file
diff --git a/framework/src/onos/apps/reactive-routing/src/main/java/org/onosproject/reactive/routing/SdnIpReactiveRouting.java b/framework/src/onos/apps/reactive-routing/src/main/java/org/onosproject/reactive/routing/SdnIpReactiveRouting.java
new file mode 100644
index 00000000..ad78a1ce
--- /dev/null
+++ b/framework/src/onos/apps/reactive-routing/src/main/java/org/onosproject/reactive/routing/SdnIpReactiveRouting.java
@@ -0,0 +1,206 @@
+/*
+ * 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.reactive.routing;
+
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Deactivate;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.onlab.packet.ARP;
+import org.onlab.packet.EthType;
+import org.onlab.packet.Ethernet;
+import org.onlab.packet.IPv4;
+import org.onlab.packet.Ip4Address;
+import org.onlab.packet.IpAddress;
+import org.onlab.packet.MacAddress;
+import org.onosproject.core.ApplicationId;
+import org.onosproject.core.CoreService;
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.flow.DefaultTrafficSelector;
+import org.onosproject.net.flow.DefaultTrafficTreatment;
+import org.onosproject.net.flow.TrafficSelector;
+import org.onosproject.net.flow.TrafficTreatment;
+import org.onosproject.net.packet.DefaultOutboundPacket;
+import org.onosproject.net.packet.InboundPacket;
+import org.onosproject.net.packet.OutboundPacket;
+import org.onosproject.net.packet.PacketContext;
+import org.onosproject.net.packet.PacketProcessor;
+import org.onosproject.net.packet.PacketService;
+import org.onosproject.routing.RoutingService;
+import org.onosproject.routing.config.RoutingConfigurationService;
+import org.slf4j.Logger;
+
+import java.nio.ByteBuffer;
+
+import static org.onlab.packet.Ethernet.TYPE_ARP;
+import static org.onlab.packet.Ethernet.TYPE_IPV4;
+import static org.onosproject.net.packet.PacketPriority.REACTIVE;
+import static org.slf4j.LoggerFactory.getLogger;
+
+/**
+ * This is reactive routing to handle 3 cases:
+ * (1) one host wants to talk to another host, both two hosts are in
+ * SDN network.
+ * (2) one host in SDN network wants to talk to another host in Internet.
+ * (3) one host from Internet wants to talk to another host in SDN network.
+ */
+@Component(immediate = true)
+public class SdnIpReactiveRouting {
+
+ private static final String APP_NAME = "org.onosproject.reactive.routing";
+ private final Logger log = getLogger(getClass());
+
+ @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+ protected CoreService coreService;
+
+ @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+ protected PacketService packetService;
+
+ @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+ protected RoutingService routingService;
+
+ @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+ protected RoutingConfigurationService config;
+
+ private ApplicationId appId;
+
+ private ReactiveRoutingProcessor processor =
+ new ReactiveRoutingProcessor();
+
+ @Activate
+ public void activate() {
+ appId = coreService.registerApplication(APP_NAME);
+ packetService.addProcessor(processor, PacketProcessor.director(2));
+ requestIntercepts();
+ log.info("SDN-IP Reactive Routing Started");
+ }
+
+ @Deactivate
+ public void deactivate() {
+ withdrawIntercepts();
+ packetService.removeProcessor(processor);
+ processor = null;
+ log.info("SDN-IP Reactive Routing Stopped");
+ }
+
+ /**
+ * Request packet in via the PacketService.
+ */
+ private void requestIntercepts() {
+ //TODO: to support IPv6 later
+ TrafficSelector.Builder selector = DefaultTrafficSelector.builder();
+ selector.matchEthType(TYPE_IPV4);
+ packetService.requestPackets(selector.build(), REACTIVE, appId);
+ selector.matchEthType(TYPE_ARP);
+ packetService.requestPackets(selector.build(), REACTIVE, appId);
+ }
+
+ /**
+ * Cancel request for packet in via PacketService.
+ */
+ private void withdrawIntercepts() {
+ TrafficSelector.Builder selector = DefaultTrafficSelector.builder();
+ selector.matchEthType(TYPE_IPV4);
+ packetService.cancelPackets(selector.build(), REACTIVE, appId);
+ selector = DefaultTrafficSelector.builder();
+ selector.matchEthType(TYPE_ARP);
+ packetService.cancelPackets(selector.build(), REACTIVE, appId);
+ }
+
+ private class ReactiveRoutingProcessor implements PacketProcessor {
+ @Override
+ public void process(PacketContext context) {
+
+ InboundPacket pkt = context.inPacket();
+ Ethernet ethPkt = pkt.parsed();
+ if (ethPkt == null) {
+ return;
+ }
+ ConnectPoint srcConnectPoint = pkt.receivedFrom();
+
+ switch (EthType.EtherType.lookup(ethPkt.getEtherType())) {
+ case ARP:
+ ARP arpPacket = (ARP) ethPkt.getPayload();
+ Ip4Address targetIpAddress = Ip4Address
+ .valueOf(arpPacket.getTargetProtocolAddress());
+ // Only when it is an ARP request packet and the target IP
+ // address is a virtual gateway IP address, then it will be
+ // processed.
+ if (arpPacket.getOpCode() == ARP.OP_REQUEST
+ && config.isVirtualGatewayIpAddress(targetIpAddress)) {
+ MacAddress gatewayMacAddress =
+ config.getVirtualGatewayMacAddress();
+ if (gatewayMacAddress == null) {
+ break;
+ }
+ Ethernet eth = ARP.buildArpReply(targetIpAddress,
+ gatewayMacAddress,
+ ethPkt);
+
+ TrafficTreatment.Builder builder =
+ DefaultTrafficTreatment.builder();
+ builder.setOutput(srcConnectPoint.port());
+ packetService.emit(new DefaultOutboundPacket(
+ srcConnectPoint.deviceId(),
+ builder.build(),
+ ByteBuffer.wrap(eth.serialize())));
+ }
+ break;
+ case IPV4:
+ // Parse packet
+ IPv4 ipv4Packet = (IPv4) ethPkt.getPayload();
+ IpAddress dstIp =
+ IpAddress.valueOf(ipv4Packet.getDestinationAddress());
+ IpAddress srcIp =
+ IpAddress.valueOf(ipv4Packet.getSourceAddress());
+ MacAddress srcMac = ethPkt.getSourceMAC();
+ routingService.packetReactiveProcessor(dstIp, srcIp,
+ srcConnectPoint, srcMac);
+
+ // TODO emit packet first or packetReactiveProcessor first
+ ConnectPoint egressConnectPoint = null;
+ egressConnectPoint = routingService.getEgressConnectPoint(dstIp);
+ if (egressConnectPoint != null) {
+ forwardPacketToDst(context, egressConnectPoint);
+ }
+ break;
+ default:
+ break;
+ }
+ }
+ }
+
+ /**
+ * Emits the specified packet onto the network.
+ *
+ * @param context the packet context
+ * @param connectPoint the connect point where the packet should be
+ * sent out
+ */
+ private void forwardPacketToDst(PacketContext context,
+ ConnectPoint connectPoint) {
+ TrafficTreatment treatment = DefaultTrafficTreatment.builder()
+ .setOutput(connectPoint.port()).build();
+ OutboundPacket packet =
+ new DefaultOutboundPacket(connectPoint.deviceId(), treatment,
+ context.inPacket().unparsed());
+ packetService.emit(packet);
+ log.trace("sending packet: {}", packet);
+ }
+
+}
+
diff --git a/framework/src/onos/apps/reactive-routing/src/main/java/org/onosproject/reactive/routing/package-info.java b/framework/src/onos/apps/reactive-routing/src/main/java/org/onosproject/reactive/routing/package-info.java
new file mode 100644
index 00000000..87c8fc84
--- /dev/null
+++ b/framework/src/onos/apps/reactive-routing/src/main/java/org/onosproject/reactive/routing/package-info.java
@@ -0,0 +1,21 @@
+/*
+ * 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.
+ */
+
+/**
+ * Application to enable (1) hosts in local SDN network to talk to other hosts
+ * in Internet, and (2) hosts in local SDN network to talk to each other.
+ */
+package org.onosproject.reactive.routing;