alshabib | ae85758 | 2014-09-12 23:53:10 -0700 | [diff] [blame] | 1 | package org.onlab.onos.provider.of.packet.impl; |
| 2 | |
| 3 | import static org.slf4j.LoggerFactory.getLogger; |
| 4 | |
alshabib | d58d352 | 2014-09-13 17:14:53 -0700 | [diff] [blame] | 5 | import java.nio.ByteBuffer; |
Ayaka Koshibe | ab3374b | 2014-09-19 11:41:25 -0700 | [diff] [blame^] | 6 | import java.util.Collections; |
alshabib | d58d352 | 2014-09-13 17:14:53 -0700 | [diff] [blame] | 7 | |
alshabib | ae85758 | 2014-09-12 23:53:10 -0700 | [diff] [blame] | 8 | import org.apache.felix.scr.annotations.Activate; |
| 9 | import org.apache.felix.scr.annotations.Component; |
| 10 | import org.apache.felix.scr.annotations.Deactivate; |
| 11 | import org.apache.felix.scr.annotations.Reference; |
| 12 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
alshabib | d58d352 | 2014-09-13 17:14:53 -0700 | [diff] [blame] | 13 | import org.onlab.onos.net.ConnectPoint; |
| 14 | import org.onlab.onos.net.DeviceId; |
| 15 | import org.onlab.onos.net.PortNumber; |
Ayaka Koshibe | ab3374b | 2014-09-19 11:41:25 -0700 | [diff] [blame^] | 16 | import org.onlab.onos.net.flow.instructions.Instruction; |
| 17 | import org.onlab.onos.net.flow.instructions.Instructions.OutputInstruction; |
alshabib | d58d352 | 2014-09-13 17:14:53 -0700 | [diff] [blame] | 18 | import org.onlab.onos.net.packet.DefaultInboundPacket; |
alshabib | ae85758 | 2014-09-12 23:53:10 -0700 | [diff] [blame] | 19 | import org.onlab.onos.net.packet.OutboundPacket; |
| 20 | import org.onlab.onos.net.packet.PacketProvider; |
| 21 | import org.onlab.onos.net.packet.PacketProviderRegistry; |
| 22 | import org.onlab.onos.net.packet.PacketProviderService; |
| 23 | import org.onlab.onos.net.provider.AbstractProvider; |
| 24 | import org.onlab.onos.net.provider.ProviderId; |
Ayaka Koshibe | ab3374b | 2014-09-19 11:41:25 -0700 | [diff] [blame^] | 25 | import org.onlab.onos.openflow.controller.DefaultOpenFlowPacketContext; |
tom | 9c94c5b | 2014-09-17 13:14:42 -0700 | [diff] [blame] | 26 | import org.onlab.onos.openflow.controller.Dpid; |
| 27 | import org.onlab.onos.openflow.controller.OpenFlowController; |
| 28 | import org.onlab.onos.openflow.controller.OpenFlowPacketContext; |
Ayaka Koshibe | ab3374b | 2014-09-19 11:41:25 -0700 | [diff] [blame^] | 29 | import org.onlab.onos.openflow.controller.OpenFlowSwitch; |
tom | 9c94c5b | 2014-09-17 13:14:42 -0700 | [diff] [blame] | 30 | import org.onlab.onos.openflow.controller.PacketListener; |
Ayaka Koshibe | ab3374b | 2014-09-19 11:41:25 -0700 | [diff] [blame^] | 31 | import org.onlab.packet.Ethernet; |
| 32 | import org.projectfloodlight.openflow.protocol.OFPacketOut; |
| 33 | import org.projectfloodlight.openflow.protocol.OFPortDesc; |
| 34 | import org.projectfloodlight.openflow.protocol.action.OFAction; |
| 35 | import org.projectfloodlight.openflow.protocol.ver10.OFFactoryVer10; |
| 36 | import org.projectfloodlight.openflow.types.OFBufferId; |
| 37 | import org.projectfloodlight.openflow.types.OFPort; |
alshabib | ae85758 | 2014-09-12 23:53:10 -0700 | [diff] [blame] | 38 | import org.slf4j.Logger; |
| 39 | |
Ayaka Koshibe | ab3374b | 2014-09-19 11:41:25 -0700 | [diff] [blame^] | 40 | import static org.onlab.onos.openflow.controller.RoleState.*; |
| 41 | |
| 42 | |
alshabib | ae85758 | 2014-09-12 23:53:10 -0700 | [diff] [blame] | 43 | /** |
| 44 | * Provider which uses an OpenFlow controller to detect network |
| 45 | * infrastructure links. |
| 46 | */ |
| 47 | @Component(immediate = true) |
| 48 | public class OpenFlowPacketProvider extends AbstractProvider implements PacketProvider { |
| 49 | |
| 50 | private final Logger log = getLogger(getClass()); |
| 51 | |
| 52 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 53 | protected PacketProviderRegistry providerRegistry; |
| 54 | |
| 55 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 56 | protected OpenFlowController controller; |
| 57 | |
| 58 | private PacketProviderService providerService; |
| 59 | |
alshabib | ae85758 | 2014-09-12 23:53:10 -0700 | [diff] [blame] | 60 | private final InternalPacketProvider listener = new InternalPacketProvider(); |
| 61 | |
alshabib | ae85758 | 2014-09-12 23:53:10 -0700 | [diff] [blame] | 62 | /** |
| 63 | * Creates an OpenFlow link provider. |
| 64 | */ |
| 65 | public OpenFlowPacketProvider() { |
tom | 7e02cda | 2014-09-18 12:05:46 -0700 | [diff] [blame] | 66 | super(new ProviderId("of", "org.onlab.onos.provider.openflow")); |
alshabib | ae85758 | 2014-09-12 23:53:10 -0700 | [diff] [blame] | 67 | } |
| 68 | |
| 69 | @Activate |
| 70 | public void activate() { |
| 71 | providerService = providerRegistry.register(this); |
alshabib | 8aef1ad | 2014-09-15 17:47:31 -0700 | [diff] [blame] | 72 | controller.addPacketListener(20, listener); |
alshabib | ae85758 | 2014-09-12 23:53:10 -0700 | [diff] [blame] | 73 | log.info("Started"); |
| 74 | } |
| 75 | |
| 76 | @Deactivate |
| 77 | public void deactivate() { |
| 78 | providerRegistry.unregister(this); |
| 79 | controller.removePacketListener(listener); |
| 80 | providerService = null; |
| 81 | log.info("Stopped"); |
| 82 | } |
| 83 | |
| 84 | @Override |
| 85 | public void emit(OutboundPacket packet) { |
Ayaka Koshibe | ab3374b | 2014-09-19 11:41:25 -0700 | [diff] [blame^] | 86 | DeviceId devId = packet.sendThrough(); |
| 87 | String scheme = devId.toString().split(":")[0]; |
| 88 | |
| 89 | if (!scheme.equals(this.id().scheme())) { |
| 90 | throw new IllegalArgumentException( |
| 91 | "Don't know how to handle Device with scheme " + scheme); |
| 92 | } |
| 93 | |
| 94 | Dpid dpid = Dpid.dpid(devId.uri()); |
| 95 | OpenFlowSwitch sw = controller.getSwitch(dpid); |
| 96 | if (sw == null) { |
| 97 | log.warn("Device {} isn't available?", devId); |
| 98 | return; |
| 99 | } else if (sw.getRole().equals(SLAVE)) { |
| 100 | log.warn("Can't write to Device {} as slave", devId); |
| 101 | return; |
| 102 | } |
| 103 | |
| 104 | Ethernet eth = new Ethernet(); |
| 105 | eth.deserialize(packet.data().array(), 0, packet.data().array().length); |
| 106 | OFPortDesc p = null; |
| 107 | for (Instruction inst : packet.treatment().instructions()) { |
| 108 | if (inst.type().equals(Instruction.Type.OUTPUT)) { |
| 109 | p = portDesc(((OutputInstruction) inst).port()); |
| 110 | if (!sw.getPorts().contains(p)) { |
| 111 | log.warn("Tried to write out non-existint port {}", p.getPortNo()); |
| 112 | continue; |
| 113 | } |
| 114 | OFPacketOut po = packetOut(sw, eth, p.getPortNo()); |
| 115 | sw.sendMsg(po); |
| 116 | } |
| 117 | } |
alshabib | ae85758 | 2014-09-12 23:53:10 -0700 | [diff] [blame] | 118 | |
| 119 | } |
| 120 | |
Ayaka Koshibe | ab3374b | 2014-09-19 11:41:25 -0700 | [diff] [blame^] | 121 | private OFPortDesc portDesc(PortNumber port) { |
| 122 | OFPortDesc.Builder builder = OFFactoryVer10.INSTANCE.buildPortDesc(); |
| 123 | builder.setPortNo(OFPort.of((int) port.toLong())); |
| 124 | |
| 125 | return builder.build(); |
| 126 | } |
| 127 | |
| 128 | private OFPacketOut packetOut(OpenFlowSwitch sw, Ethernet eth, OFPort out) { |
| 129 | OFPacketOut.Builder builder = sw.factory().buildPacketOut(); |
| 130 | OFAction act = sw.factory().actions() |
| 131 | .buildOutput() |
| 132 | .setPort(out) |
| 133 | .build(); |
| 134 | return builder |
| 135 | .setBufferId(OFBufferId.NO_BUFFER) |
| 136 | .setInPort(OFPort.NO_MASK) |
| 137 | .setActions(Collections.singletonList(act)) |
| 138 | .setData(eth.serialize()) |
| 139 | .build(); |
| 140 | } |
alshabib | ae85758 | 2014-09-12 23:53:10 -0700 | [diff] [blame] | 141 | |
alshabib | d58d352 | 2014-09-13 17:14:53 -0700 | [diff] [blame] | 142 | /** |
| 143 | * Internal Packet Provider implementation. |
| 144 | * |
| 145 | */ |
alshabib | ae85758 | 2014-09-12 23:53:10 -0700 | [diff] [blame] | 146 | private class InternalPacketProvider implements PacketListener { |
| 147 | |
alshabib | ae85758 | 2014-09-12 23:53:10 -0700 | [diff] [blame] | 148 | @Override |
| 149 | public void handlePacket(OpenFlowPacketContext pktCtx) { |
alshabib | d58d352 | 2014-09-13 17:14:53 -0700 | [diff] [blame] | 150 | DeviceId id = DeviceId.deviceId(Dpid.uri(pktCtx.dpid().value())); |
alshabib | ae85758 | 2014-09-12 23:53:10 -0700 | [diff] [blame] | 151 | |
alshabib | d58d352 | 2014-09-13 17:14:53 -0700 | [diff] [blame] | 152 | DefaultInboundPacket inPkt = new DefaultInboundPacket( |
| 153 | new ConnectPoint(id, PortNumber.portNumber(pktCtx.inPort())), |
| 154 | pktCtx.parsed(), ByteBuffer.wrap(pktCtx.unparsed())); |
alshabib | ae85758 | 2014-09-12 23:53:10 -0700 | [diff] [blame] | 155 | |
alshabib | d58d352 | 2014-09-13 17:14:53 -0700 | [diff] [blame] | 156 | OpenFlowCorePacketContext corePktCtx = |
alshabib | 9842a4e | 2014-09-16 21:42:35 -0700 | [diff] [blame] | 157 | new OpenFlowCorePacketContext(System.currentTimeMillis(), |
| 158 | inPkt, null, pktCtx.isHandled(), pktCtx); |
alshabib | d58d352 | 2014-09-13 17:14:53 -0700 | [diff] [blame] | 159 | providerService.processPacket(corePktCtx); |
alshabib | ae85758 | 2014-09-12 23:53:10 -0700 | [diff] [blame] | 160 | } |
| 161 | |
| 162 | } |
| 163 | |
| 164 | |
| 165 | } |