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

Example 1 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 2 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 3 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 4 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 5 with DeserializationException

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

the class OpenstackRoutingSnatIcmpHandlerTest method constructIcmpRequestPacket.

private Ethernet constructIcmpRequestPacket(IpAddress srcIp, MacAddress srcMac, IpAddress dstIp, MacAddress dstMac, byte icmpType) {
    try {
        ICMPEcho icmpEcho = new ICMPEcho();
        icmpEcho.setIdentifier((short) 0).setSequenceNum((short) 0);
        ByteBuffer byteBufferIcmpEcho = ByteBuffer.wrap(icmpEcho.serialize());
        ICMP icmp = new ICMP();
        icmp.setIcmpType(icmpType).setIcmpCode(icmpType == TYPE_ECHO_REQUEST ? CODE_ECHO_REQUEST : CODE_ECHO_REPLY).setChecksum((short) 0);
        icmp.setPayload(ICMPEcho.deserializer().deserialize(byteBufferIcmpEcho.array(), 0, ICMPEcho.ICMP_ECHO_HEADER_LENGTH));
        ByteBuffer byteBufferIcmp = ByteBuffer.wrap(icmp.serialize());
        IPv4 iPacket = new IPv4();
        iPacket.setDestinationAddress(dstIp.toString());
        iPacket.setSourceAddress(srcIp.toString());
        iPacket.setTtl((byte) 64);
        iPacket.setChecksum((short) 0);
        iPacket.setDiffServ((byte) 0);
        iPacket.setProtocol(IPv4.PROTOCOL_ICMP);
        iPacket.setPayload(ICMP.deserializer().deserialize(byteBufferIcmp.array(), 0, 8));
        Ethernet ethPacket = new Ethernet();
        ethPacket.setEtherType(TYPE_IPV4);
        ethPacket.setSourceMACAddress(srcMac);
        ethPacket.setDestinationMACAddress(dstMac);
        ethPacket.setPayload(iPacket);
        return ethPacket;
    } catch (DeserializationException e) {
        return null;
    }
}