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

Example 11 with IpPrefix

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

the class VirtualNetworkPacketRequestCommand method buildTrafficSelector.

/**
 * Constructs a traffic selector based on the command line arguments
 * presented to the command.
 * @return traffic selector
 */
private TrafficSelector buildTrafficSelector() {
    IpPrefix srcIpPrefix = null;
    IpPrefix dstIpPrefix = null;
    TrafficSelector.Builder selectorBuilder = DefaultTrafficSelector.builder();
    if (!isNullOrEmpty(srcIpString)) {
        srcIpPrefix = IpPrefix.valueOf(srcIpString);
        if (srcIpPrefix.isIp4()) {
            selectorBuilder.matchIPSrc(srcIpPrefix);
        } else {
            selectorBuilder.matchIPv6Src(srcIpPrefix);
        }
    }
    if (!isNullOrEmpty(dstIpString)) {
        dstIpPrefix = IpPrefix.valueOf(dstIpString);
        if (dstIpPrefix.isIp4()) {
            selectorBuilder.matchIPDst(dstIpPrefix);
        } else {
            selectorBuilder.matchIPv6Dst(dstIpPrefix);
        }
    }
    if ((srcIpPrefix != null) && (dstIpPrefix != null) && (srcIpPrefix.version() != dstIpPrefix.version())) {
        // ERROR: IP src/dst version mismatch
        throw new IllegalArgumentException("IP source and destination version mismatch");
    }
    // 
    // Set the default EthType based on the IP version if the matching
    // source or destination IP prefixes.
    // 
    Short ethType = null;
    if ((srcIpPrefix != null) && srcIpPrefix.isIp6()) {
        ethType = EthType.IPV6.value();
    }
    if ((dstIpPrefix != null) && dstIpPrefix.isIp6()) {
        ethType = EthType.IPV6.value();
    }
    if (!isNullOrEmpty(ethTypeString)) {
        ethType = EthType.parseFromString(ethTypeString);
    }
    if (ethType != null) {
        selectorBuilder.matchEthType(ethType);
    }
    if (!isNullOrEmpty(vlanString)) {
        selectorBuilder.matchVlanId(VlanId.vlanId(Short.parseShort(vlanString)));
    }
    if (!isNullOrEmpty(srcMacString)) {
        selectorBuilder.matchEthSrc(MacAddress.valueOf(srcMacString));
    }
    if (!isNullOrEmpty(dstMacString)) {
        selectorBuilder.matchEthDst(MacAddress.valueOf(dstMacString));
    }
    if (!isNullOrEmpty(ipProtoString)) {
        short ipProtoShort = IpProtocol.parseFromString(ipProtoString);
        selectorBuilder.matchIPProtocol((byte) ipProtoShort);
    }
    if (!isNullOrEmpty(fLabelString)) {
        selectorBuilder.matchIPv6FlowLabel(Integer.parseInt(fLabelString));
    }
    if (!isNullOrEmpty(icmp6TypeString)) {
        byte icmp6Type = Icmp6Type.parseFromString(icmp6TypeString);
        selectorBuilder.matchIcmpv6Type(icmp6Type);
    }
    if (!isNullOrEmpty(icmp6CodeString)) {
        byte icmp6Code = Icmp6Code.parseFromString(icmp6CodeString);
        selectorBuilder.matchIcmpv6Code(icmp6Code);
    }
    if (!isNullOrEmpty(ndTargetString)) {
        selectorBuilder.matchIPv6NDTargetAddress(Ip6Address.valueOf(ndTargetString));
    }
    if (!isNullOrEmpty(ndSllString)) {
        selectorBuilder.matchIPv6NDSourceLinkLayerAddress(MacAddress.valueOf(ndSllString));
    }
    if (!isNullOrEmpty(ndTllString)) {
        selectorBuilder.matchIPv6NDTargetLinkLayerAddress(MacAddress.valueOf(ndTllString));
    }
    if (!isNullOrEmpty(srcTcpString)) {
        selectorBuilder.matchTcpSrc(TpPort.tpPort(Integer.parseInt(srcTcpString)));
    }
    if (!isNullOrEmpty(dstTcpString)) {
        selectorBuilder.matchTcpDst(TpPort.tpPort(Integer.parseInt(dstTcpString)));
    }
    if (extHdrStringList != null) {
        short extHdr = 0;
        for (String extHdrString : extHdrStringList) {
            extHdr = (short) (extHdr | ExtHeader.parseFromString(extHdrString));
        }
        selectorBuilder.matchIPv6ExthdrFlags(extHdr);
    }
    return selectorBuilder.build();
}

Example 12 with IpPrefix

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

the class Ofdpa2GroupHandler method addBucketToBroadcastGroup.

private void addBucketToBroadcastGroup(NextObjective nextObj, List<Deque<GroupKey>> allActiveKeys) {
    VlanId assignedVlan = readVlanFromSelector(nextObj.meta());
    if (assignedVlan == null) {
        log.warn("VLAN ID required by broadcast next obj is missing. " + "Aborting add bucket to broadcast group for next:{} in dev:{}", nextObj.id(), deviceId);
        fail(nextObj, ObjectiveError.BADPARAMS);
        return;
    }
    List<GroupInfo> groupInfos = prepareL2InterfaceGroup(nextObj, assignedVlan);
    IpPrefix ipDst = readIpDstFromSelector(nextObj.meta());
    if (ipDst != null) {
        if (ipDst.isMulticast()) {
            addBucketToL3MulticastGroup(nextObj, allActiveKeys, groupInfos, assignedVlan);
        } else {
            log.warn("Broadcast NextObj with non-multicast IP address {}", nextObj);
            fail(nextObj, ObjectiveError.BADPARAMS);
        }
    } else {
        addBucketToL2FloodGroup(nextObj, allActiveKeys, groupInfos, assignedVlan);
    }
}

Example 13 with IpPrefix

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

the class Ofdpa2Pipeline method buildIpv6Selector.

/**
 * Helper method to build Ipv6 selector using the selector provided by
 * a forwarding objective.
 *
 * @param builderToUpdate the builder to update
 * @param fwd the selector to read
 * @return 0 if the update ends correctly. -1 if the matches
 * are not yet supported
 */
int buildIpv6Selector(TrafficSelector.Builder builderToUpdate, ForwardingObjective fwd) {
    TrafficSelector selector = fwd.selector();
    IpPrefix ipv6Dst = ((IPCriterion) selector.getCriterion(Criterion.Type.IPV6_DST)).ip();
    if (ipv6Dst.isMulticast()) {
        if (ipv6Dst.prefixLength() != IpAddress.INET6_BIT_LENGTH) {
            log.warn("Multicast specific forwarding objective can only be /128");
            fail(fwd, ObjectiveError.BADPARAMS);
            return -1;
        }
        VlanId assignedVlan = readVlanFromSelector(fwd.meta());
        if (assignedVlan == null) {
            log.warn("VLAN ID required by multicast specific fwd obj is missing. Abort.");
            fail(fwd, ObjectiveError.BADPARAMS);
            return -1;
        }
        if (requireVlanExtensions()) {
            OfdpaMatchVlanVid ofdpaMatchVlanVid = new OfdpaMatchVlanVid(assignedVlan);
            builderToUpdate.extension(ofdpaMatchVlanVid, deviceId);
        } else {
            builderToUpdate.matchVlanId(assignedVlan);
        }
        builderToUpdate.matchEthType(Ethernet.TYPE_IPV6).matchIPv6Dst(ipv6Dst);
        log.debug("processing IPv6 multicast specific forwarding objective {} -> next:{}" + " in dev:{}", fwd.id(), fwd.nextId(), deviceId);
    } else {
        if (ipv6Dst.prefixLength() != 0) {
            builderToUpdate.matchIPv6Dst(ipv6Dst);
        }
        builderToUpdate.matchEthType(Ethernet.TYPE_IPV6);
        log.debug("processing IPv6 unicast specific forwarding objective {} -> next:{}" + " in dev:{}", fwd.id(), fwd.nextId(), deviceId);
    }
    return 0;
}

Example 14 with IpPrefix

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

the class Ofdpa2Pipeline method buildIpv4Selector.

private int buildIpv4Selector(TrafficSelector.Builder builderToUpdate, TrafficSelector.Builder extBuilder, ForwardingObjective fwd, boolean allowDefaultRoute) {
    TrafficSelector selector = fwd.selector();
    IpPrefix ipv4Dst = ((IPCriterion) selector.getCriterion(Criterion.Type.IPV4_DST)).ip();
    if (ipv4Dst.isMulticast()) {
        if (ipv4Dst.prefixLength() != 32) {
            log.warn("Multicast specific forwarding objective can only be /32");
            fail(fwd, ObjectiveError.BADPARAMS);
            return -1;
        }
        VlanId assignedVlan = readVlanFromSelector(fwd.meta());
        if (assignedVlan == null) {
            log.warn("VLAN ID required by multicast specific fwd obj is missing. Abort.");
            fail(fwd, ObjectiveError.BADPARAMS);
            return -1;
        }
        if (requireVlanExtensions()) {
            OfdpaMatchVlanVid ofdpaMatchVlanVid = new OfdpaMatchVlanVid(assignedVlan);
            builderToUpdate.extension(ofdpaMatchVlanVid, deviceId);
        } else {
            builderToUpdate.matchVlanId(assignedVlan);
        }
        builderToUpdate.matchEthType(Ethernet.TYPE_IPV4).matchIPDst(ipv4Dst);
        log.debug("processing IPv4 multicast specific forwarding objective {} -> next:{}" + " in dev:{}", fwd.id(), fwd.nextId(), deviceId);
    } else {
        if (ipv4Dst.prefixLength() == 0) {
            if (allowDefaultRoute) {
                // The entire IPV4_DST field is wildcarded intentionally
                builderToUpdate.matchEthType(Ethernet.TYPE_IPV4);
            } else {
                // NOTE: The switch does not support matching 0.0.0.0/0
                // Split it into 0.0.0.0/1 and 128.0.0.0/1
                builderToUpdate.matchEthType(Ethernet.TYPE_IPV4).matchIPDst(IpPrefix.valueOf("0.0.0.0/1"));
                extBuilder.matchEthType(Ethernet.TYPE_IPV4).matchIPDst(IpPrefix.valueOf("128.0.0.0/1"));
            }
        } else {
            builderToUpdate.matchEthType(Ethernet.TYPE_IPV4).matchIPDst(ipv4Dst);
        }
        log.debug("processing IPv4 unicast specific forwarding objective {} -> next:{}" + " in dev:{}", fwd.id(), fwd.nextId(), deviceId);
    }
    return 0;
}

Example 15 with IpPrefix

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

the class Ofdpa2Pipeline method processEthTypeSpecificInternal.

/**
 * Internal implementation of processEthTypeSpecific.
 * <p>
 * Wildcarded IPv4_DST is not supported in OFDPA i12. Therefore, we break
 * the rule into 0.0.0.0/1 and 128.0.0.0/1.
 * The allowDefaultRoute must be set to false for OFDPA i12.
 * </p>
 *
 * @param fwd the forwarding objective
 * @param allowDefaultRoute allow wildcarded IPv4_DST or not
 * @param mplsNextTable next MPLS table
 * @return A collection of flow rules, or an empty set
 */
protected Collection<FlowRule> processEthTypeSpecificInternal(ForwardingObjective fwd, boolean allowDefaultRoute, int mplsNextTable) {
    TrafficSelector selector = fwd.selector();
    EthTypeCriterion ethType = (EthTypeCriterion) selector.getCriterion(Criterion.Type.ETH_TYPE);
    boolean emptyGroup = false;
    int forTableId;
    TrafficSelector.Builder filteredSelector = DefaultTrafficSelector.builder();
    TrafficTreatment.Builder tb = DefaultTrafficTreatment.builder();
    TrafficSelector.Builder complementarySelector = DefaultTrafficSelector.builder();
    if (ethType.ethType().toShort() == Ethernet.TYPE_IPV4) {
        if (buildIpv4Selector(filteredSelector, complementarySelector, fwd, allowDefaultRoute) < 0) {
            return Collections.emptyList();
        }
        // We need to set properly the next table
        IpPrefix ipv4Dst = ((IPCriterion) selector.getCriterion(Criterion.Type.IPV4_DST)).ip();
        if (ipv4Dst.isMulticast()) {
            forTableId = MULTICAST_ROUTING_TABLE;
        } else {
            forTableId = UNICAST_ROUTING_TABLE;
        }
    // TODO decrementing IP ttl is done automatically for routing, this
    // action is ignored or rejected in ofdpa as it is not fully implemented
    // if (fwd.treatment() != null) {
    // for (Instruction instr : fwd.treatment().allInstructions()) {
    // if (instr instanceof L3ModificationInstruction &&
    // ((L3ModificationInstruction) instr).subtype() == L3SubType.DEC_TTL) {
    // tb.deferred().add(instr);
    // }
    // }
    // }
    } else if (ethType.ethType().toShort() == Ethernet.TYPE_IPV6) {
        if (buildIpv6Selector(filteredSelector, fwd) < 0) {
            return Collections.emptyList();
        }
        // We need to set the proper next table
        IpPrefix ipv6Dst = ((IPCriterion) selector.getCriterion(Criterion.Type.IPV6_DST)).ip();
        if (ipv6Dst.isMulticast()) {
            forTableId = MULTICAST_ROUTING_TABLE;
        } else {
            forTableId = UNICAST_ROUTING_TABLE;
        }
    // TODO decrementing IP ttl is done automatically for routing, this
    // action is ignored or rejected in ofdpa as it is not fully implemented
    // if (fwd.treatment() != null) {
    // for (Instruction instr : fwd.treatment().allInstructions()) {
    // if (instr instanceof L3ModificationInstruction &&
    // ((L3ModificationInstruction) instr).subtype() == L3SubType.DEC_TTL) {
    // tb.deferred().add(instr);
    // }
    // }
    // }
    } else {
        filteredSelector.matchEthType(Ethernet.MPLS_UNICAST).matchMplsLabel(((MplsCriterion) selector.getCriterion(Criterion.Type.MPLS_LABEL)).label());
        MplsBosCriterion bos = (MplsBosCriterion) selector.getCriterion(MPLS_BOS);
        if (bos != null && requireMplsBosMatch()) {
            filteredSelector.matchMplsBos(bos.mplsBos());
        }
        forTableId = MPLS_TABLE_1;
        log.debug("processing MPLS specific forwarding objective {} -> next:{}" + " in dev {}", fwd.id(), fwd.nextId(), deviceId);
        if (fwd.treatment() != null) {
            for (Instruction instr : fwd.treatment().allInstructions()) {
                if (instr instanceof L2ModificationInstruction && ((L2ModificationInstruction) instr).subtype() == L2SubType.MPLS_POP) {
                    // setting the MPLS_TYPE so pop can happen down the pipeline
                    if (requireMplsPop()) {
                        if (mplsNextTable == MPLS_TYPE_TABLE && isNotMplsBos(selector)) {
                            tb.immediate().popMpls();
                        }
                    } else {
                        // Skip mpls pop action for mpls_unicast label
                        if (instr instanceof ModMplsHeaderInstruction && !((ModMplsHeaderInstruction) instr).ethernetType().equals(EtherType.MPLS_UNICAST.ethType())) {
                            tb.immediate().add(instr);
                        }
                    }
                }
                if (requireMplsTtlModification()) {
                    if (instr instanceof L3ModificationInstruction && ((L3ModificationInstruction) instr).subtype() == L3SubType.DEC_TTL) {
                        // FIXME Should modify the app to send the correct DEC_MPLS_TTL instruction
                        tb.immediate().decMplsTtl();
                    }
                    if (instr instanceof L3ModificationInstruction && ((L3ModificationInstruction) instr).subtype() == L3SubType.TTL_IN) {
                        tb.immediate().add(instr);
                    }
                }
            }
        }
    }
    if (fwd.nextId() != null) {
        NextGroup next = getGroupForNextObjective(fwd.nextId());
        if (next != null) {
            List<Deque<GroupKey>> gkeys = appKryo.deserialize(next.data());
            // we only need the top level group's key to point the flow to it
            Group group = groupService.getGroup(deviceId, gkeys.get(0).peekFirst());
            if (group == null) {
                log.warn("Group with key:{} for next-id:{} not found in dev:{}", gkeys.get(0).peekFirst(), fwd.nextId(), deviceId);
                fail(fwd, ObjectiveError.GROUPMISSING);
                return Collections.emptySet();
            }
            if (isNotMplsBos(selector) && group.type().equals(SELECT)) {
                log.warn("SR CONTINUE case cannot be handled as MPLS ECMP " + "is not implemented in OF-DPA yet. Aborting flow {} -> next:{} " + "in this device {}", fwd.id(), fwd.nextId(), deviceId);
                fail(fwd, ObjectiveError.FLOWINSTALLATIONFAILED);
                return Collections.emptySet();
            }
            tb.deferred().group(group.id());
            // retrying flows may be necessary due to bug CORD-554
            if (gkeys.size() == 1 && gkeys.get(0).size() == 1) {
                if (shouldRetry()) {
                    log.warn("Found empty group 0x{} in dev:{} .. will retry fwd:{}", Integer.toHexString(group.id().id()), deviceId, fwd.id());
                    emptyGroup = true;
                }
            }
        } else {
            log.warn("Cannot find group for nextId:{} in dev:{}. Aborting fwd:{}", fwd.nextId(), deviceId, fwd.id());
            fail(fwd, ObjectiveError.FLOWINSTALLATIONFAILED);
            return Collections.emptySet();
        }
    }
    if (forTableId == MPLS_TABLE_1) {
        if (mplsNextTable == MPLS_L3_TYPE_TABLE) {
            Ofdpa3SetMplsType setMplsType = new Ofdpa3SetMplsType(Ofdpa3MplsType.L3_PHP);
            // set mpls type as apply_action
            tb.immediate().extension(setMplsType, deviceId);
        }
        tb.transition(mplsNextTable);
    } else {
        tb.transition(ACL_TABLE);
    }
    if (fwd.treatment() != null && fwd.treatment().clearedDeferred()) {
        if (supportsUnicastBlackHole()) {
            tb.wipeDeferred();
        } else {
            log.warn("Clear Deferred is not supported Unicast Routing Table on device {}", deviceId);
            return Collections.emptySet();
        }
    }
    FlowRule.Builder ruleBuilder = DefaultFlowRule.builder().fromApp(fwd.appId()).withPriority(fwd.priority()).forDevice(deviceId).withSelector(filteredSelector.build()).withTreatment(tb.build()).forTable(forTableId);
    if (fwd.permanent()) {
        ruleBuilder.makePermanent();
    } else {
        ruleBuilder.makeTemporary(fwd.timeout());
    }
    Collection<FlowRule> flowRuleCollection = new ArrayList<>();
    flowRuleCollection.add(ruleBuilder.build());
    if (!allowDefaultRoute) {
        flowRuleCollection.add(defaultRoute(fwd, complementarySelector, forTableId, tb));
        log.debug("Default rule 0.0.0.0/0 is being installed two rules");
    }
    if (emptyGroup) {
        retryExecutorService.schedule(new RetryFlows(fwd, flowRuleCollection), RETRY_MS, TimeUnit.MILLISECONDS);
    }
    return flowRuleCollection;
}