alshabib | c4901cd | 2014-09-05 16:50:40 -0700 | [diff] [blame] | 1 | package org.onlab.onos.of.controller; |
| 2 | |
alshabib | 289652c | 2014-09-07 19:09:28 -0700 | [diff] [blame] | 3 | import java.util.Collections; |
| 4 | |
alshabib | c4901cd | 2014-09-05 16:50:40 -0700 | [diff] [blame] | 5 | import org.onlab.packet.Ethernet; |
| 6 | import org.projectfloodlight.openflow.protocol.OFPacketIn; |
| 7 | import org.projectfloodlight.openflow.protocol.OFPacketOut; |
alshabib | 289652c | 2014-09-07 19:09:28 -0700 | [diff] [blame] | 8 | import org.projectfloodlight.openflow.protocol.action.OFAction; |
| 9 | import org.projectfloodlight.openflow.types.OFBufferId; |
alshabib | c4901cd | 2014-09-05 16:50:40 -0700 | [diff] [blame] | 10 | import org.projectfloodlight.openflow.types.OFPort; |
| 11 | |
alshabib | 638dc71 | 2014-09-05 18:03:45 -0700 | [diff] [blame] | 12 | public final class DefaultPacketContext implements PacketContext { |
alshabib | c4901cd | 2014-09-05 16:50:40 -0700 | [diff] [blame] | 13 | |
| 14 | private boolean free = true; |
| 15 | private boolean isBuilt = false; |
| 16 | private final OpenFlowSwitch sw; |
| 17 | private final OFPacketIn pktin; |
alshabib | 289652c | 2014-09-07 19:09:28 -0700 | [diff] [blame] | 18 | private OFPacketOut pktout = null; |
alshabib | c4901cd | 2014-09-05 16:50:40 -0700 | [diff] [blame] | 19 | |
| 20 | private DefaultPacketContext(OpenFlowSwitch s, OFPacketIn pkt) { |
| 21 | this.sw = s; |
| 22 | this.pktin = pkt; |
| 23 | } |
| 24 | |
| 25 | @Override |
| 26 | public void block() { |
| 27 | free = false; |
| 28 | } |
| 29 | |
| 30 | @Override |
| 31 | public void send() { |
| 32 | if (free && isBuilt) { |
| 33 | sw.sendMsg(pktout); |
| 34 | } |
| 35 | |
| 36 | } |
| 37 | |
| 38 | @Override |
| 39 | public void build(OFPort outPort) { |
| 40 | isBuilt = true; |
| 41 | |
| 42 | } |
| 43 | |
| 44 | @Override |
| 45 | public void build(Ethernet ethFrame, OFPort outPort) { |
alshabib | 289652c | 2014-09-07 19:09:28 -0700 | [diff] [blame] | 46 | if (isBuilt) { |
| 47 | return; |
| 48 | } |
| 49 | OFPacketOut.Builder builder = sw.factory().buildPacketOut(); |
| 50 | OFAction act = sw.factory().actions() |
| 51 | .buildOutput() |
| 52 | .setPort(OFPort.of(outPort.getPortNumber())) |
| 53 | .build(); |
| 54 | pktout = builder.setXid(pktin.getXid()) |
| 55 | .setBufferId(OFBufferId.NO_BUFFER) |
| 56 | .setActions(Collections.singletonList(act)) |
| 57 | .setData(ethFrame.serialize()) |
| 58 | .build(); |
| 59 | isBuilt = true; |
alshabib | c4901cd | 2014-09-05 16:50:40 -0700 | [diff] [blame] | 60 | } |
| 61 | |
| 62 | @Override |
| 63 | public Ethernet parsed() { |
alshabib | 289652c | 2014-09-07 19:09:28 -0700 | [diff] [blame] | 64 | Ethernet eth = new Ethernet(); |
| 65 | eth.deserialize(pktin.getData(), 0, pktin.getTotalLen()); |
| 66 | return eth; |
alshabib | c4901cd | 2014-09-05 16:50:40 -0700 | [diff] [blame] | 67 | } |
| 68 | |
| 69 | @Override |
| 70 | public Dpid dpid() { |
alshabib | 289652c | 2014-09-07 19:09:28 -0700 | [diff] [blame] | 71 | return new Dpid(sw.getId()); |
alshabib | c4901cd | 2014-09-05 16:50:40 -0700 | [diff] [blame] | 72 | } |
| 73 | |
alshabib | 638dc71 | 2014-09-05 18:03:45 -0700 | [diff] [blame] | 74 | public static PacketContext packetContextFromPacketIn(OpenFlowSwitch s, OFPacketIn pkt) { |
alshabib | c4901cd | 2014-09-05 16:50:40 -0700 | [diff] [blame] | 75 | return new DefaultPacketContext(s, pkt); |
| 76 | } |
| 77 | |
alshabib | df652ad | 2014-09-09 11:53:19 -0700 | [diff] [blame^] | 78 | @Override |
| 79 | public Integer inPort() { |
| 80 | return pktin.getInPort().getPortNumber(); |
| 81 | } |
| 82 | |
alshabib | c4901cd | 2014-09-05 16:50:40 -0700 | [diff] [blame] | 83 | } |