Examples with DeserializationException org.onlab.packet.DeserializationException used on opensource projects

Example 6 with DeserializationException

use of org.onlab.packet.DeserializationException 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 7 with DeserializationException

use of org.onlab.packet.DeserializationException 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 8 with DeserializationException

use of org.onlab.packet.DeserializationException in project onos by opennetworkinglab.

the class OpenFlowCorePacketContext method send.

@Override
public void send() {
    if (!this.block()) {
        if (outPacket() == null) {
            sendPacket(null);
        } else {
            try {
                Ethernet eth = Ethernet.deserializer().deserialize(outPacket().data().array(), 0, outPacket().data().array().length);
                sendPacket(eth);
            } catch (DeserializationException e) {
                log.warn("Unable to deserialize packet");
            }
        }
    }
}

Example 9 with DeserializationException

use of org.onlab.packet.DeserializationException 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 10 with DeserializationException

use of org.onlab.packet.DeserializationException in project fabric-tna by stratum.

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(P4InfoConstants.INGRESS_PORT)).findFirst();
    if (packetMetadata.isPresent()) {
        try {
            ImmutableByteSequence portByteSequence = packetMetadata.get().value().fit(P4InfoConstants.INGRESS_PORT_BITWIDTH);
            UnsignedInteger ui = UnsignedInteger.fromIntBits(portByteSequence.asReadOnlyBuffer().getInt());
            ConnectPoint receivedFrom = new ConnectPoint(deviceId, PortNumber.portNumber(ui.longValue()));
            if (!receivedFrom.port().hasName()) {
                receivedFrom = translateSwitchPort(receivedFrom);
            }
            ByteBuffer rawData = ByteBuffer.wrap(packetIn.data().asArray());
            return new DefaultInboundPacket(receivedFrom, ethPkt, rawData);
        } catch (ImmutableByteSequence.ByteSequenceTrimException e) {
            throw new PiInterpreterException(format("Malformed metadata '%s' in packet-in received from '%s': %s", P4InfoConstants.INGRESS_PORT, deviceId, packetIn));
        }
    } else {
        throw new PiInterpreterException(format("Missing metadata '%s' in packet-in received from '%s': %s", P4InfoConstants.INGRESS_PORT, deviceId, packetIn));
    }
}