Examples with PiPacketOperation org.onosproject.net.pi.runtime.PiPacketOperation used on opensource projects

Example 1 with PiPacketOperation

use of org.onosproject.net.pi.runtime.PiPacketOperation in project onos by opennetworkinglab.

the class PipelineInterpreterImpl method mapInboundPacket.

@Override
public InboundPacket mapInboundPacket(PiPacketOperation packetIn, DeviceId deviceId) throws PiInterpreterException {
    // We assume that the packet is ethernet, which is fine since mytunnel.p4
    // can deparse only ethernet packets.
    Ethernet ethPkt;
    try {
        ethPkt = Ethernet.deserializer().deserialize(packetIn.data().asArray(), 0, packetIn.data().size());
    } catch (DeserializationException dex) {
        throw new PiInterpreterException(dex.getMessage());
    }
    // Returns the ingress port packet metadata.
    Optional<PiPacketMetadata> packetMetadata = packetIn.metadatas().stream().filter(metadata -> metadata.id().toString().equals(INGRESS_PORT)).findFirst();
    if (packetMetadata.isPresent()) {
        short s = packetMetadata.get().value().asReadOnlyBuffer().getShort();
        ConnectPoint receivedFrom = new ConnectPoint(deviceId, PortNumber.portNumber(s));
        return new DefaultInboundPacket(receivedFrom, ethPkt, packetIn.data().asReadOnlyBuffer());
    } else {
        throw new PiInterpreterException(format("Missing metadata '%s' in packet-in received from '%s': %s", INGRESS_PORT, deviceId, packetIn));
    }
}

Example 2 with PiPacketOperation

use of org.onosproject.net.pi.runtime.PiPacketOperation in project onos by opennetworkinglab.

the class BasicInterpreterImpl method mapInboundPacket.

@Override
public InboundPacket mapInboundPacket(PiPacketOperation packetIn, DeviceId deviceId) throws PiInterpreterException {
    // Assuming that the packet is ethernet, which is fine since basic.p4
    // can deparse only ethernet packets.
    Ethernet ethPkt;
    try {
        ethPkt = Ethernet.deserializer().deserialize(packetIn.data().asArray(), 0, packetIn.data().size());
    } catch (DeserializationException dex) {
        throw new PiInterpreterException(dex.getMessage());
    }
    // Returns the ingress port packet metadata.
    Optional<PiPacketMetadata> packetMetadata = packetIn.metadatas().stream().filter(m -> m.id().equals(INGRESS_PORT)).findFirst();
    if (packetMetadata.isPresent()) {
        ImmutableByteSequence portByteSequence = packetMetadata.get().value();
        short s = portByteSequence.asReadOnlyBuffer().getShort();
        ConnectPoint receivedFrom = new ConnectPoint(deviceId, PortNumber.portNumber(s));
        ByteBuffer rawData = ByteBuffer.wrap(packetIn.data().asArray());
        return new DefaultInboundPacket(receivedFrom, ethPkt, rawData);
    } else {
        throw new PiInterpreterException(format("Missing metadata '%s' in packet-in received from '%s': %s", INGRESS_PORT, deviceId, packetIn));
    }
}

Example 3 with PiPacketOperation

use of org.onosproject.net.pi.runtime.PiPacketOperation in project onos by opennetworkinglab.

the class BasicInterpreterImpl method mapOutboundPacket.

@Override
public Collection<PiPacketOperation> mapOutboundPacket(OutboundPacket packet) throws PiInterpreterException {
    TrafficTreatment treatment = packet.treatment();
    // basic.p4 supports only OUTPUT instructions.
    List<OutputInstruction> outInstructions = treatment.allInstructions().stream().filter(i -> i.type().equals(OUTPUT)).map(i -> (OutputInstruction) i).collect(toList());
    if (treatment.allInstructions().size() != outInstructions.size()) {
        // There are other instructions that are not of type OUTPUT.
        throw new PiInterpreterException("Treatment not supported: " + treatment);
    }
    ImmutableList.Builder<PiPacketOperation> builder = ImmutableList.builder();
    for (OutputInstruction outInst : outInstructions) {
        if (outInst.port().isLogical() && !outInst.port().equals(FLOOD)) {
            throw new PiInterpreterException(format("Output on logical port '%s' not supported", outInst.port()));
        } else if (outInst.port().equals(FLOOD)) {
            // Since basic.p4 does not support flooding, we create a packet
            // operation for each switch port.
            final DeviceService deviceService = handler().get(DeviceService.class);
            for (Port port : deviceService.getPorts(packet.sendThrough())) {
                builder.add(createPiPacketOperation(packet.data(), port.number().toLong()));
            }
        } else {
            builder.add(createPiPacketOperation(packet.data(), outInst.port().toLong()));
        }
    }
    return builder.build();
}

Example 4 with PiPacketOperation

use of org.onosproject.net.pi.runtime.PiPacketOperation in project onos by opennetworkinglab.

the class FabricInterpreter method mapInboundPacket.

@Override
public InboundPacket mapInboundPacket(PiPacketOperation packetIn, DeviceId deviceId) throws PiInterpreterException {
    // Assuming that the packet is ethernet, which is fine since fabric.p4
    // can deparse only ethernet packets.
    Ethernet ethPkt;
    try {
        ethPkt = Ethernet.deserializer().deserialize(packetIn.data().asArray(), 0, packetIn.data().size());
    } catch (DeserializationException dex) {
        throw new PiInterpreterException(dex.getMessage());
    }
    // Returns the ingress port packet metadata.
    Optional<PiPacketMetadata> packetMetadata = packetIn.metadatas().stream().filter(m -> m.id().equals(FabricConstants.INGRESS_PORT)).findFirst();
    if (packetMetadata.isPresent()) {
        ImmutableByteSequence portByteSequence = packetMetadata.get().value();
        short s = portByteSequence.asReadOnlyBuffer().getShort();
        ConnectPoint receivedFrom = new ConnectPoint(deviceId, PortNumber.portNumber(s));
        if (!receivedFrom.port().hasName()) {
            receivedFrom = translateSwitchPort(receivedFrom);
        }
        ByteBuffer rawData = ByteBuffer.wrap(packetIn.data().asArray());
        return new DefaultInboundPacket(receivedFrom, ethPkt, rawData);
    } else {
        throw new PiInterpreterException(format("Missing metadata '%s' in packet-in received from '%s': %s", FabricConstants.INGRESS_PORT, deviceId, packetIn));
    }
}

Example 5 with PiPacketOperation

use of org.onosproject.net.pi.runtime.PiPacketOperation in project onos by opennetworkinglab.

the class FabricInterpreter method mapOutboundPacket.

@Override
public Collection<PiPacketOperation> mapOutboundPacket(OutboundPacket packet) throws PiInterpreterException {
    DeviceId deviceId = packet.sendThrough();
    TrafficTreatment treatment = packet.treatment();
    // fabric.p4 supports only OUTPUT instructions.
    List<Instructions.OutputInstruction> outInstructions = treatment.allInstructions().stream().filter(i -> i.type().equals(OUTPUT)).map(i -> (Instructions.OutputInstruction) i).collect(toList());
    if (treatment.allInstructions().size() != outInstructions.size()) {
        // There are other instructions that are not of type OUTPUT.
        throw new PiInterpreterException("Treatment not supported: " + treatment);
    }
    ImmutableList.Builder<PiPacketOperation> builder = ImmutableList.builder();
    for (Instructions.OutputInstruction outInst : outInstructions) {
        if (outInst.port().equals(TABLE)) {
            // Logical port. Forward using the switch tables like a regular packet.
            builder.add(createPiPacketOperation(packet.data(), -1, true));
        } else if (outInst.port().equals(FLOOD)) {
            // Logical port. Create a packet operation for each switch port.
            final DeviceService deviceService = handler().get(DeviceService.class);
            for (Port port : deviceService.getPorts(packet.sendThrough())) {
                builder.add(createPiPacketOperation(packet.data(), port.number().toLong(), false));
            }
        } else if (outInst.port().isLogical()) {
            throw new PiInterpreterException(format("Output on logical port '%s' not supported", outInst.port()));
        } else {
            // Send as-is to given port bypassing all switch tables.
            builder.add(createPiPacketOperation(packet.data(), outInst.port().toLong(), false));
        }
    }
    return builder.build();
}