Examples with Instruction org.onosproject.net.flow.instructions.Instruction used on opensource projects

Example 71 with Instruction

use of org.onosproject.net.flow.instructions.Instruction in project onos by opennetworkinglab.

the class OfdpaPipelineTraceable method handleOutputFlows.

// Handles output flows
private List<FlowEntry> handleOutputFlows(TrafficSelector currentPacket, List<FlowEntry> outputFlows, TrafficSelector.Builder egressPacket, List<PortNumber> outputPorts, PipelineTraceableHitChain currentHitChain, PipelineTraceableOutput.Builder outputBuilder, TrafficSelector initialPacket) {
    // TODO optimization
    // outputFlows contains also last rule of device, so we need filtering for OUTPUT instructions.
    List<FlowEntry> outputFlowEntries = outputFlows.stream().filter(flow -> flow.treatment().allInstructions().stream().filter(instruction -> instruction.type().equals(Instruction.Type.OUTPUT)).count() > 0).collect(Collectors.toList());
    if (outputFlowEntries.size() > 1) {
        outputBuilder.appendToLog("More than one flow rule with OUTPUT instruction");
        log.warn("There cannot be more than one flow entry with OUTPUT instruction for {}", currentPacket);
    }
    if (outputFlowEntries.size() == 1) {
        OutputInstruction outputInstruction = (OutputInstruction) outputFlowEntries.get(0).treatment().allInstructions().stream().filter(instruction -> instruction.type().equals(Instruction.Type.OUTPUT)).findFirst().get();
        buildOutputFromDevice(egressPacket, outputPorts, outputInstruction, currentHitChain, outputBuilder, initialPacket, false);
    }
    return outputFlowEntries;
}

Example 72 with Instruction

use of org.onosproject.net.flow.instructions.Instruction in project onos by opennetworkinglab.

the class OfdpaPipelineTraceable method isDropped.

private boolean isDropped(GroupId groupId, GroupBucket bucket, ConnectPoint ingressPort) {
    log.debug("Verify if the packet has to be dropped by the input port {}", ingressPort);
    // if It is not a l2 flood group and l2/l3 mcast skip
    int maskedId = groupId.id() & 0xF0000000;
    if (maskedId != L2_FLOOD_TYPE && maskedId != L2_MULTICAST_TYPE && maskedId != L3_MULTICAST_TYPE) {
        return false;
    }
    // Verify if the bucket points to the ingress port
    Instructions.GroupInstruction groupInstruction;
    for (Instruction instr : bucket.treatment().allInstructions()) {
        if (instr.type().equals(Instruction.Type.GROUP)) {
            groupInstruction = (Instructions.GroupInstruction) instr;
            // FIXME According to the OFDPA spec for L3 MCAST if the VLAN is changed packet is not dropped
            if ((groupInstruction.groupId().id() & 0xF0000000) == L2_INTERFACE_TYPE) {
                return (groupInstruction.groupId().id() & 0x0000FFFF) == ingressPort.port().toLong();
            }
        }
    }
    return false;
}

Example 73 with Instruction

use of org.onosproject.net.flow.instructions.Instruction in project onos by opennetworkinglab.

the class OfdpaPipelineTraceable method handleOfdpa27FixedTable.

// Handles table 27 in Ofpda which is a fixed table not visible to any controller that handles Mpls Labels.
private TrafficSelector handleOfdpa27FixedTable(TrafficSelector initialPacket, TrafficSelector packet) {
    log.debug("Handling table 27 on OFDPA, removing mpls ETH Type and change mpls label");
    Criterion mplsCriterion = packet.getCriterion(Criterion.Type.ETH_TYPE);
    // T3 was using the initial packet of the trace - using the metadata in the packet to carry this info
    Criterion metadataCriterion = initialPacket.getCriterion(Criterion.Type.METADATA);
    ImmutableList.Builder<Instruction> builder = ImmutableList.builder();
    // If the packet comes in with the expected elements we update it as per OFDPA spec.
    if (mplsCriterion != null && ((EthTypeCriterion) mplsCriterion).ethType().equals(EthType.EtherType.MPLS_UNICAST.ethType()) && metadataCriterion != null) {
        // Get the metadata to restore the original ethertype
        long ethType = ((MetadataCriterion) metadataCriterion).metadata();
        // TODO update with parsing with eth MPLS pop Instruction for treating label an bos
        Instruction ethInstruction = Instructions.popMpls(EthType.EtherType.lookup((short) ethType).ethType());
        // FIXME what do we use as L3_Unicast mpls Label ?
        // translateInstruction(builder, ethInstruction);
        builder.add(ethInstruction);
        // Filtering out metadata
        TrafficSelector.Builder currentPacketBuilder = DefaultTrafficSelector.builder();
        packet.criteria().stream().filter(criterion -> criterion.type() != Criterion.Type.METADATA).forEach(currentPacketBuilder::add);
        packet = currentPacketBuilder.build();
    }
    packet = updatePacket(packet, builder.build()).build();
    return packet;
}

Example 74 with Instruction

use of org.onosproject.net.flow.instructions.Instruction in project onos by opennetworkinglab.

the class OfdpaPipelineTraceable method getGroupsFromInstructions.

// Gets group information from instructions.
private void getGroupsFromInstructions(Map<GroupId, Group> groups, List<Instruction> instructions, TrafficSelector.Builder egressPacket, List<PortNumber> outputPorts, PipelineTraceableHitChain currentHitChain, PipelineTraceableOutput.Builder outputBuilder, PipelineTraceableInput input, boolean dropped) {
    List<Instruction> groupInstructionlist = new ArrayList<>();
    // sort instructions according to priority (larger Instruction.Type ENUM constant first)
    // which enables to treat other actions before the OUTPUT action
    // TODO improve the priority scheme according to the OpenFlow ActionSet spec
    List<Instruction> instructionsSorted = new ArrayList<>();
    instructionsSorted.addAll(instructions);
    instructionsSorted.sort((instr1, instr2) -> Integer.compare(instr2.type().ordinal(), instr1.type().ordinal()));
    // Handles first all non-group instructions
    for (Instruction instruction : instructionsSorted) {
        log.debug("Considering Instruction {}", instruction);
        // to the possible outputs for this packet
        if (!instruction.type().equals(Instruction.Type.GROUP)) {
            // or add the output to the possible outputs for this packet
            if (instruction.type().equals(Instruction.Type.OUTPUT)) {
                buildOutputFromDevice(egressPacket, outputPorts, (OutputInstruction) instruction, currentHitChain, outputBuilder, input.ingressPacket().packet(), dropped);
            } else {
                egressPacket = translateInstruction(egressPacket, instruction);
            }
        } else {
            // Store for later if the instruction is pointing to a group
            groupInstructionlist.add(instruction);
        }
    }
    // handle all the internal instructions pointing to a group.
    for (Instruction instr : groupInstructionlist) {
        Instructions.GroupInstruction groupInstruction = (Instructions.GroupInstruction) instr;
        Group group = groups.get(groupInstruction.groupId());
        // group does not exist in the dataplane
        if (group == null) {
            currentHitChain.setEgressPacket(new PipelineTraceablePacket(egressPacket.build()));
            currentHitChain.dropped();
            outputBuilder.appendToLog("Null group for Instruction " + instr).noGroups().addHitChain(currentHitChain);
            break;
        }
        log.debug("Analyzing group {}", group.id());
        // group is there but there are no members/buckets
        if (group.buckets().buckets().size() == 0) {
            // add the group to the traversed groups
            currentHitChain.addDataPlaneEntity(new DataPlaneEntity(group));
            currentHitChain.setEgressPacket(new PipelineTraceablePacket(egressPacket.build()));
            currentHitChain.dropped();
            outputBuilder.appendToLog("Group " + group.id() + " has no buckets").noMembers().addHitChain(currentHitChain);
            break;
        }
        PipelineTraceableHitChain newHitChain;
        TrafficSelector.Builder newEgressPacket;
        // Cycle in each of the group's buckets and add them to the groups for this Device.
        for (GroupBucket bucket : group.buckets().buckets()) {
            // add the group to the traversed groups
            currentHitChain.addDataPlaneEntity(new DataPlaneEntity(group));
            // Go to the next step - using a copy of the egress packet and of the hit chain
            newHitChain = PipelineTraceableHitChain.emptyHitChain();
            currentHitChain.hitChain().forEach(newHitChain::addDataPlaneEntity);
            newEgressPacket = DefaultTrafficSelector.builder(egressPacket.build());
            getGroupsFromInstructions(groups, bucket.treatment().allInstructions(), newEgressPacket, outputPorts, newHitChain, outputBuilder, input, dropped | isDropped(group.id(), bucket, input.ingressPort()));
        }
    }
}

Example 75 with Instruction

use of org.onosproject.net.flow.instructions.Instruction in project onos by opennetworkinglab.

the class Ofdpa2GroupHandler method createL2L3ChainInternal.

/**
 * Internal implementation of createL2L3Chain.
 * <p>
 * The is_present bit in set_vlan_vid action is required to be 0 in OFDPA i12.
 * Since it is non-OF spec, we need an extension treatment for that.
 * The useSetVlanExtension must be set to false for OFDPA i12.
 * </p>
 *
 * @param treatment that needs to be broken up to create the group chain
 * @param nextId of the next objective that needs this group chain
 * @param appId of the application that sent this next objective
 * @param mpls determines if L3Unicast or MPLSInterface group is created
 * @param meta metadata passed in by the application as part of the nextObjective
 * @param useSetVlanExtension use the setVlanVid extension that has is_present bit set to 0.
 * @return GroupInfo containing the GroupDescription of the
 *         L2Interface group(inner) and the GroupDescription of the (outer)
 *         L3Unicast/MPLSInterface group. May return null if there is an
 *         error in processing the chain
 */
protected GroupInfo createL2L3ChainInternal(TrafficTreatment treatment, int nextId, ApplicationId appId, boolean mpls, TrafficSelector meta, boolean useSetVlanExtension) {
    // for the l2interface group, get vlan and port info
    // for the outer group, get the src/dst mac, and vlan info
    TrafficTreatment.Builder outerTtb = DefaultTrafficTreatment.builder();
    TrafficTreatment.Builder innerTtb = DefaultTrafficTreatment.builder();
    VlanId vlanid = null;
    long portNum = 0;
    boolean setVlan = false, popVlan = false;
    MacAddress srcMac;
    MacAddress dstMac;
    for (Instruction ins : treatment.allInstructions()) {
        if (ins.type() == Instruction.Type.L2MODIFICATION) {
            L2ModificationInstruction l2ins = (L2ModificationInstruction) ins;
            switch(l2ins.subtype()) {
                case ETH_DST:
                    dstMac = ((L2ModificationInstruction.ModEtherInstruction) l2ins).mac();
                    outerTtb.setEthDst(dstMac);
                    break;
                case ETH_SRC:
                    srcMac = ((L2ModificationInstruction.ModEtherInstruction) l2ins).mac();
                    outerTtb.setEthSrc(srcMac);
                    break;
                case VLAN_ID:
                    vlanid = ((L2ModificationInstruction.ModVlanIdInstruction) l2ins).vlanId();
                    if (useSetVlanExtension) {
                        OfdpaSetVlanVid ofdpaSetVlanVid = new OfdpaSetVlanVid(vlanid);
                        outerTtb.extension(ofdpaSetVlanVid, deviceId);
                    } else {
                        outerTtb.setVlanId(vlanid);
                    }
                    setVlan = true;
                    break;
                case VLAN_POP:
                    innerTtb.popVlan();
                    popVlan = true;
                    break;
                case DEC_MPLS_TTL:
                case MPLS_LABEL:
                case MPLS_POP:
                case MPLS_PUSH:
                case VLAN_PCP:
                case VLAN_PUSH:
                default:
                    break;
            }
        } else if (ins.type() == Instruction.Type.OUTPUT) {
            portNum = ((Instructions.OutputInstruction) ins).port().toLong();
            innerTtb.add(ins);
        } else {
            log.debug("Driver does not handle this type of TrafficTreatment" + " instruction in l2l3chain:  {} - {}", ins.type(), ins);
        }
    }
    if (vlanid == null && meta != null) {
        // use metadata if available
        Criterion vidCriterion = meta.getCriterion(VLAN_VID);
        if (vidCriterion != null) {
            vlanid = ((VlanIdCriterion) vidCriterion).vlanId();
        }
        // if vlan is not set, use the vlan in metadata for outerTtb
        if (vlanid != null && !setVlan) {
            if (useSetVlanExtension) {
                OfdpaSetVlanVid ofdpaSetVlanVid = new OfdpaSetVlanVid(vlanid);
                outerTtb.extension(ofdpaSetVlanVid, deviceId);
            } else {
                outerTtb.setVlanId(vlanid);
            }
        }
    }
    if (vlanid == null) {
        log.error("Driver cannot process an L2/L3 group chain without " + "egress vlan information for dev: {} port:{}", deviceId, portNum);
        return null;
    }
    if (!setVlan && !popVlan) {
        // untagged outgoing port
        TrafficTreatment.Builder temp = DefaultTrafficTreatment.builder();
        temp.popVlan();
        innerTtb.build().allInstructions().forEach(temp::add);
        innerTtb = temp;
    }
    // assemble information for ofdpa l2interface group
    int l2groupId = l2GroupId(vlanid, portNum);
    // a globally unique groupkey that is different for ports in the same device,
    // but different for the same portnumber on different devices. Also different
    // for the various group-types created out of the same next objective.
    int l2gk = l2InterfaceGroupKey(deviceId, vlanid, portNum);
    final GroupKey l2groupkey = new DefaultGroupKey(appKryo.serialize(l2gk));
    // assemble information for outer group
    GroupDescription outerGrpDesc;
    if (mpls) {
        // outer group is MPLS Interface
        int mplsInterfaceIndex = getNextAvailableIndex();
        int mplsGroupId = MPLS_INTERFACE_TYPE | (SUBTYPE_MASK & mplsInterfaceIndex);
        final GroupKey mplsGroupKey = new DefaultGroupKey(appKryo.serialize(mplsInterfaceIndex));
        outerTtb.group(new GroupId(l2groupId));
        // create the mpls-interface group description to wait for the
        // l2 interface group to be processed
        GroupBucket mplsinterfaceGroupBucket = DefaultGroupBucket.createIndirectGroupBucket(outerTtb.build());
        outerGrpDesc = new DefaultGroupDescription(deviceId, GroupDescription.Type.INDIRECT, new GroupBuckets(Collections.singletonList(mplsinterfaceGroupBucket)), mplsGroupKey, mplsGroupId, appId);
        log.debug("Trying MPLS-Interface: device:{} gid:{} gkey:{} nextid:{}", deviceId, Integer.toHexString(mplsGroupId), mplsGroupKey, nextId);
    } else {
        // outer group is L3Unicast
        int l3unicastIndex = getNextAvailableIndex();
        int l3groupId = L3_UNICAST_TYPE | (TYPE_MASK & l3unicastIndex);
        final GroupKey l3groupkey = new DefaultGroupKey(appKryo.serialize(l3unicastIndex));
        outerTtb.group(new GroupId(l2groupId));
        // create the l3unicast group description to wait for the
        // l2 interface group to be processed
        GroupBucket l3unicastGroupBucket = DefaultGroupBucket.createIndirectGroupBucket(outerTtb.build());
        outerGrpDesc = new DefaultGroupDescription(deviceId, GroupDescription.Type.INDIRECT, new GroupBuckets(Collections.singletonList(l3unicastGroupBucket)), l3groupkey, l3groupId, appId);
        log.debug("Trying L3Unicast: device:{} gid:{} gkey:{} nextid:{}", deviceId, Integer.toHexString(l3groupId), l3groupkey, nextId);
    }
    // store l2groupkey with the groupChainElem for the outer-group that depends on it
    GroupChainElem gce = new GroupChainElem(outerGrpDesc, 1, false, deviceId);
    updatePendingGroups(l2groupkey, gce);
    // create group description for the inner l2 interface group
    GroupBucket l2InterfaceGroupBucket = DefaultGroupBucket.createIndirectGroupBucket(innerTtb.build());
    GroupDescription l2groupDescription = new DefaultGroupDescription(deviceId, GroupDescription.Type.INDIRECT, new GroupBuckets(Collections.singletonList(l2InterfaceGroupBucket)), l2groupkey, l2groupId, appId);
    log.debug("Trying L2Interface: device:{} gid:{} gkey:{} nextId:{}", deviceId, Integer.toHexString(l2groupId), l2groupkey, nextId);
    return new GroupInfo(l2groupDescription, outerGrpDesc);
}