Java Code Examples for org.onlab.packet.IpPrefix#isMulticast()
The following examples show how to use
org.onlab.packet.IpPrefix#isMulticast() .
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Example 1
| Source File: Ofdpa2GroupHandler.java From onos with Apache License 2.0 | 6 votes |
|
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 2
| Source File: Ofdpa2Pipeline.java From onos with Apache License 2.0 | 5 votes |
|
/**
* 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 3
| Source File: OvsOfdpaPipeline.java From onos with Apache License 2.0 | 4 votes |
|
/**
* Handles forwarding rules to the IP Unicast Routing.
*
* @param fwd the forwarding objective
* @return A collection of flow rules, or an empty set
*/
protected Collection<FlowRule> processDoubleTaggedFwd(ForwardingObjective fwd) {
// inner for UNICAST_ROUTING_TABLE_1, outer for UNICAST_ROUTING_TABLE
TrafficSelector selector = fwd.selector();
TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder();
TrafficTreatment.Builder innerTtb = DefaultTrafficTreatment.builder();
TrafficTreatment.Builder outerTtb = DefaultTrafficTreatment.builder();
EthTypeCriterion ethType =
(EthTypeCriterion) selector.getCriterion(Criterion.Type.ETH_TYPE);
if (ethType.ethType().toShort() == Ethernet.TYPE_IPV4) {
sBuilder.matchEthType(Ethernet.TYPE_IPV4);
sBuilder.matchVlanId(VlanId.ANY);
IpPrefix ipv4Dst = ((IPCriterion) selector.getCriterion(Criterion.Type.IPV4_DST)).ip();
if (!ipv4Dst.isMulticast() && ipv4Dst.prefixLength() == 32) {
sBuilder.matchIPDst(ipv4Dst);
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();
}
outerTtb.immediate().setVlanId(extractDummyVlanIdFromGroupId(group.id().id()));
//ACTSET_OUTPUT in OVS will match output action in write_action() set.
outerTtb.deferred().setOutput(extractOutputPortFromGroupId(group.id().id()));
outerTtb.transition(EGRESS_VLAN_FLOW_TABLE_IN_INGRESS);
innerTtb.deferred().group(group.id());
innerTtb.transition(ACL_TABLE);
FlowRule.Builder innerRuleBuilder = DefaultFlowRule.builder()
.fromApp(fwd.appId())
.withPriority(fwd.priority())
.forDevice(deviceId)
.withSelector(sBuilder.build())
.withTreatment(innerTtb.build())
.forTable(UNICAST_ROUTING_TABLE_1);
if (fwd.permanent()) {
innerRuleBuilder.makePermanent();
} else {
innerRuleBuilder.makeTemporary(fwd.timeout());
}
Collection<FlowRule> flowRuleCollection = new HashSet<>();
flowRuleCollection.add(innerRuleBuilder.build());
FlowRule.Builder outerRuleBuilder = DefaultFlowRule.builder()
.fromApp(fwd.appId())
.withPriority(fwd.priority())
.forDevice(deviceId)
.withSelector(sBuilder.build())
.withTreatment(outerTtb.build())
.forTable(UNICAST_ROUTING_TABLE);
if (fwd.permanent()) {
outerRuleBuilder.makePermanent();
} else {
outerRuleBuilder.makeTemporary(fwd.timeout());
}
flowRuleCollection.add(innerRuleBuilder.build());
flowRuleCollection.add(outerRuleBuilder.build());
return flowRuleCollection;
} else {
log.warn("Cannot find group for nextId:{} in dev:{}. Aborting fwd:{}",
fwd.nextId(), deviceId, fwd.id());
fail(fwd, ObjectiveError.FLOWINSTALLATIONFAILED);
return Collections.emptySet();
}
} else {
log.warn("NextId is not specified in fwd:{}", fwd.id());
fail(fwd, ObjectiveError.FLOWINSTALLATIONFAILED);
return Collections.emptySet();
}
}
}
return Collections.emptySet();
}
Example 4
| Source File: Ofdpa2Pipeline.java From onos with Apache License 2.0 | 4 votes |
|
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 5
| Source File: Ofdpa2GroupHandler.java From onos with Apache License 2.0 | 4 votes |
|
/**
* As per the OFDPA 2.0 TTP, packets are sent out of ports by using
* a chain of groups. The broadcast Next Objective passed in by the application
* has to be broken up into a group chain comprising of an
* L2 Flood group or L3 Multicast group, whose buckets point to L2 Interface groups.
*
* @param nextObj the nextObjective of type BROADCAST
*/
private void processBroadcastNextObjective(NextObjective nextObj) {
VlanId assignedVlan = readVlanFromSelector(nextObj.meta());
if (assignedVlan == null) {
log.warn("VLAN ID required by broadcast next obj is missing. Abort.");
fail(nextObj, ObjectiveError.BADPARAMS);
return;
}
// Handling L2 multicast cases.
MacAddress dstMac = readEthDstFromSelector(nextObj.meta());
if (dstMac != null && dstMac.isMulticast()) {
processL2MulticastNextObjective(nextObj);
return;
}
// FIXME Improve the logic
// If L2 load balancer is not involved, use L2IG. Otherwise, use L2UG.
// The purpose is to make sure existing XConnect logic can still work on a configured port.
List<GroupInfo> groupInfos;
if (nextObj.nextTreatments().stream().allMatch(n -> n.type() == NextTreatment.Type.TREATMENT)) {
groupInfos = prepareL2InterfaceGroup(nextObj, assignedVlan);
log.debug("prepareL2InterfaceGroup");
} else {
groupInfos = prepareL2UnfilteredGroup(nextObj);
log.debug("prepareL2UnfilteredGroup");
}
if (groupInfos == null || groupInfos.isEmpty()) {
log.warn("No buckets for Broadcast NextObj {}", nextObj);
fail(nextObj, ObjectiveError.GROUPMISSING);
return;
}
IpPrefix ipDst = readIpDstFromSelector(nextObj.meta());
if (ipDst != null) {
if (ipDst.isMulticast()) {
createL3MulticastGroup(nextObj, assignedVlan, groupInfos);
} else {
log.warn("Broadcast NextObj with non-multicast IP address {}", nextObj);
fail(nextObj, ObjectiveError.BADPARAMS);
}
} else {
createL2FloodGroup(nextObj, assignedVlan, groupInfos);
}
}
