| package org.onlab.onos.provider.of.flow.impl; |
| |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| import java.util.Collections; |
| import java.util.LinkedList; |
| import java.util.List; |
| |
| import org.apache.felix.scr.annotations.Activate; |
| import org.apache.felix.scr.annotations.Component; |
| import org.apache.felix.scr.annotations.Deactivate; |
| import org.apache.felix.scr.annotations.Reference; |
| import org.apache.felix.scr.annotations.ReferenceCardinality; |
| import org.onlab.onos.net.DeviceId; |
| import org.onlab.onos.net.flow.FlowEntry; |
| import org.onlab.onos.net.flow.FlowRule; |
| import org.onlab.onos.net.flow.FlowRuleProvider; |
| import org.onlab.onos.net.flow.FlowRuleProviderRegistry; |
| import org.onlab.onos.net.flow.FlowRuleProviderService; |
| import org.onlab.onos.net.flow.criteria.Criteria.EthCriterion; |
| import org.onlab.onos.net.flow.criteria.Criteria.EthTypeCriterion; |
| import org.onlab.onos.net.flow.criteria.Criteria.IPCriterion; |
| import org.onlab.onos.net.flow.criteria.Criteria.IPProtocolCriterion; |
| import org.onlab.onos.net.flow.criteria.Criteria.PortCriterion; |
| import org.onlab.onos.net.flow.criteria.Criteria.VlanIdCriterion; |
| import org.onlab.onos.net.flow.criteria.Criteria.VlanPcpCriterion; |
| import org.onlab.onos.net.flow.criteria.Criterion; |
| import org.onlab.onos.net.flow.instructions.Instruction; |
| import org.onlab.onos.net.flow.instructions.Instructions.OutputInstruction; |
| import org.onlab.onos.net.flow.instructions.L2ModificationInstruction; |
| import org.onlab.onos.net.flow.instructions.L2ModificationInstruction.ModEtherInstruction; |
| import org.onlab.onos.net.flow.instructions.L2ModificationInstruction.ModVlanIdInstruction; |
| import org.onlab.onos.net.flow.instructions.L2ModificationInstruction.ModVlanPcpInstruction; |
| import org.onlab.onos.net.flow.instructions.L3ModificationInstruction; |
| import org.onlab.onos.net.flow.instructions.L3ModificationInstruction.ModIPInstruction; |
| import org.onlab.onos.net.provider.AbstractProvider; |
| import org.onlab.onos.net.provider.ProviderId; |
| import org.onlab.onos.net.topology.TopologyService; |
| import org.onlab.onos.of.controller.Dpid; |
| import org.onlab.onos.of.controller.OpenFlowController; |
| import org.onlab.onos.of.controller.OpenFlowSwitch; |
| import org.projectfloodlight.openflow.protocol.OFFactory; |
| import org.projectfloodlight.openflow.protocol.OFFlowMod; |
| import org.projectfloodlight.openflow.protocol.OFFlowModFlags; |
| import org.projectfloodlight.openflow.protocol.action.OFAction; |
| import org.projectfloodlight.openflow.protocol.match.Match; |
| import org.projectfloodlight.openflow.protocol.match.MatchField; |
| import org.projectfloodlight.openflow.types.EthType; |
| import org.projectfloodlight.openflow.types.IPv4Address; |
| import org.projectfloodlight.openflow.types.IpProtocol; |
| import org.projectfloodlight.openflow.types.MacAddress; |
| import org.projectfloodlight.openflow.types.OFBufferId; |
| import org.projectfloodlight.openflow.types.OFPort; |
| import org.projectfloodlight.openflow.types.OFVlanVidMatch; |
| import org.projectfloodlight.openflow.types.VlanPcp; |
| import org.projectfloodlight.openflow.types.VlanVid; |
| import org.slf4j.Logger; |
| |
| /** |
| * Provider which uses an OpenFlow controller to detect network |
| * end-station hosts. |
| */ |
| @Component(immediate = true) |
| public class OpenFlowRuleProvider extends AbstractProvider implements FlowRuleProvider { |
| |
| private final Logger log = getLogger(getClass()); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected FlowRuleProviderRegistry providerRegistry; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected OpenFlowController controller; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected TopologyService topologyService; |
| |
| private FlowRuleProviderService providerService; |
| |
| /** |
| * Creates an OpenFlow host provider. |
| */ |
| public OpenFlowRuleProvider() { |
| super(new ProviderId("org.onlab.onos.provider.openflow")); |
| } |
| |
| @Activate |
| public void activate() { |
| providerService = providerRegistry.register(this); |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| providerRegistry.unregister(this); |
| providerService = null; |
| |
| log.info("Stopped"); |
| } |
| @Override |
| public void applyFlowRule(FlowRule... flowRules) { |
| for (int i = 0; i < flowRules.length; i++) { |
| applyRule(flowRules[i]); |
| } |
| } |
| |
| private void applyRule(FlowRule flowRule) { |
| OpenFlowSwitch sw = controller.getSwitch(Dpid.dpid(flowRule.deviceId().uri())); |
| Match match = buildMatch(flowRule.selector().criteria(), sw.factory()); |
| List<OFAction> actions = |
| buildActions(flowRule.treatment().instructions(), sw.factory()); |
| |
| //TODO: what to do without bufferid? do we assume that there will be a pktout as well? |
| OFFlowMod fm = sw.factory().buildFlowModify() |
| .setBufferId(OFBufferId.NO_BUFFER) |
| .setActions(actions) |
| .setMatch(match) |
| .setFlags(Collections.singleton(OFFlowModFlags.SEND_FLOW_REM)) |
| .setIdleTimeout(10) |
| .setHardTimeout(10) |
| .setPriority(flowRule.priority()) |
| .build(); |
| sw.sendMsg(fm); |
| } |
| |
| private List<OFAction> buildActions(List<Instruction> instructions, OFFactory factory) { |
| List<OFAction> acts = new LinkedList<>(); |
| for (Instruction i : instructions) { |
| switch (i.type()) { |
| case DROP: |
| log.warn("Saw drop action; assigning drop action"); |
| return new LinkedList<>(); |
| case L2MODIFICATION: |
| acts.add(buildL2Modification(i, factory)); |
| case L3MODIFICATION: |
| acts.add(buildL3Modification(i, factory)); |
| case OUTPUT: |
| OutputInstruction out = (OutputInstruction) i; |
| acts.add(factory.actions().buildOutput().setPort( |
| OFPort.of((int) out.port().toLong())).build()); |
| break; |
| case GROUP: |
| default: |
| log.warn("Instruction type {} not yet implemented.", i.type()); |
| } |
| } |
| |
| return acts; |
| } |
| |
| private OFAction buildL3Modification(Instruction i, OFFactory factory) { |
| L3ModificationInstruction l3m = (L3ModificationInstruction) i; |
| ModIPInstruction ip; |
| switch (l3m.subtype()) { |
| case L3_DST: |
| ip = (ModIPInstruction) i; |
| return factory.actions().setNwDst(IPv4Address.of(ip.ip().toInt())); |
| case L3_SRC: |
| ip = (ModIPInstruction) i; |
| return factory.actions().setNwSrc(IPv4Address.of(ip.ip().toInt())); |
| default: |
| log.warn("Unimplemented action type {}.", l3m.subtype()); |
| break; |
| } |
| return null; |
| } |
| |
| private OFAction buildL2Modification(Instruction i, OFFactory factory) { |
| L2ModificationInstruction l2m = (L2ModificationInstruction) i; |
| ModEtherInstruction eth; |
| switch (l2m.subtype()) { |
| case L2_DST: |
| eth = (ModEtherInstruction) l2m; |
| return factory.actions().setDlDst(MacAddress.of(eth.mac().toLong())); |
| case L2_SRC: |
| eth = (ModEtherInstruction) l2m; |
| return factory.actions().setDlSrc(MacAddress.of(eth.mac().toLong())); |
| case VLAN_ID: |
| ModVlanIdInstruction vlanId = (ModVlanIdInstruction) l2m; |
| return factory.actions().setVlanVid(VlanVid.ofVlan(vlanId.vlanId.toShort())); |
| case VLAN_PCP: |
| ModVlanPcpInstruction vlanPcp = (ModVlanPcpInstruction) l2m; |
| return factory.actions().setVlanPcp(VlanPcp.of(vlanPcp.vlanPcp())); |
| default: |
| log.warn("Unimplemented action type {}.", l2m.subtype()); |
| break; |
| } |
| return null; |
| } |
| |
| private Match buildMatch(List<Criterion> criteria, OFFactory factory) { |
| Match.Builder mBuilder = factory.buildMatch(); |
| EthCriterion eth; |
| IPCriterion ip; |
| for (Criterion c : criteria) { |
| switch (c.type()) { |
| case IN_PORT: |
| PortCriterion inport = (PortCriterion) c; |
| mBuilder.setExact(MatchField.IN_PORT, OFPort.of((int) inport.port().toLong())); |
| break; |
| case ETH_SRC: |
| eth = (EthCriterion) c; |
| mBuilder.setExact(MatchField.ETH_SRC, MacAddress.of(eth.mac().toLong())); |
| break; |
| case ETH_DST: |
| eth = (EthCriterion) c; |
| mBuilder.setExact(MatchField.ETH_DST, MacAddress.of(eth.mac().toLong())); |
| break; |
| case ETH_TYPE: |
| EthTypeCriterion ethType = (EthTypeCriterion) c; |
| mBuilder.setExact(MatchField.ETH_TYPE, EthType.of(ethType.ethType())); |
| break; |
| case IPV4_DST: |
| ip = (IPCriterion) c; |
| mBuilder.setExact(MatchField.IPV4_DST, IPv4Address.of(ip.ip().toInt())); |
| break; |
| case IPV4_SRC: |
| ip = (IPCriterion) c; |
| mBuilder.setExact(MatchField.IPV4_SRC, IPv4Address.of(ip.ip().toInt())); |
| break; |
| case IP_PROTO: |
| IPProtocolCriterion p = (IPProtocolCriterion) c; |
| mBuilder.setExact(MatchField.IP_PROTO, IpProtocol.of(p.protocol())); |
| break; |
| case VLAN_PCP: |
| VlanPcpCriterion vpcp = (VlanPcpCriterion) c; |
| mBuilder.setExact(MatchField.VLAN_PCP, VlanPcp.of(vpcp.priority())); |
| break; |
| case VLAN_VID: |
| VlanIdCriterion vid = (VlanIdCriterion) c; |
| mBuilder.setExact(MatchField.VLAN_VID, |
| OFVlanVidMatch.ofVlanVid(VlanVid.ofVlan(vid.vlanId().toShort()))); |
| break; |
| case ARP_OP: |
| case ARP_SHA: |
| case ARP_SPA: |
| case ARP_THA: |
| case ARP_TPA: |
| case ICMPV4_CODE: |
| case ICMPV4_TYPE: |
| case ICMPV6_CODE: |
| case ICMPV6_TYPE: |
| case IN_PHY_PORT: |
| case IPV6_DST: |
| case IPV6_EXTHDR: |
| case IPV6_FLABEL: |
| case IPV6_ND_SLL: |
| case IPV6_ND_TARGET: |
| case IPV6_ND_TLL: |
| case IPV6_SRC: |
| case IP_DSCP: |
| case IP_ECN: |
| case METADATA: |
| case MPLS_BOS: |
| case MPLS_LABEL: |
| case MPLS_TC: |
| case PBB_ISID: |
| case SCTP_DST: |
| case SCTP_SRC: |
| case TCP_DST: |
| case TCP_SRC: |
| case TUNNEL_ID: |
| case UDP_DST: |
| case UDP_SRC: |
| default: |
| log.warn("Action type {} not yet implemented.", c.type()); |
| } |
| } |
| return mBuilder.build(); |
| } |
| |
| @Override |
| public void removeFlowRule(FlowRule... flowRules) { |
| // TODO Auto-generated method stub |
| |
| } |
| |
| @Override |
| public Iterable<FlowEntry> getFlowMetrics(DeviceId deviceId) { |
| // TODO Auto-generated method stub |
| return null; |
| } |
| |
| |
| //TODO: InternalFlowRuleProvider listening to stats and error and flowremoved. |
| // possibly barriers as well. May not be internal at all... |
| |
| |
| } |