renderers/ofoverlay/src/main/java/org/opendaylight/groupbasedpolicy/renderer/ofoverlay/flow/ChainActionFlows.java

   1 package org.opendaylight.groupbasedpolicy.renderer.ofoverlay.flow;
   2
   3 import static org.opendaylight.groupbasedpolicy.renderer.ofoverlay.flow.FlowUtils.addNxNsiMatch;
   4 import static org.opendaylight.groupbasedpolicy.renderer.ofoverlay.flow.FlowUtils.addNxNspMatch;
   5 import static org.opendaylight.groupbasedpolicy.renderer.ofoverlay.flow.FlowUtils.addNxRegMatch;
   6 import static org.opendaylight.groupbasedpolicy.renderer.ofoverlay.flow.FlowUtils.addNxTunIdMatch;
   7 import static org.opendaylight.groupbasedpolicy.renderer.ofoverlay.flow.FlowUtils.applyActionIns;
   8 import static org.opendaylight.groupbasedpolicy.renderer.ofoverlay.flow.FlowUtils.gotoTableIns;
   9 import static org.opendaylight.groupbasedpolicy.renderer.ofoverlay.flow.FlowUtils.instructions;
  10 import static org.opendaylight.groupbasedpolicy.renderer.ofoverlay.flow.FlowUtils.nxLoadRegAction;
  11 import static org.opendaylight.groupbasedpolicy.renderer.ofoverlay.flow.FlowUtils.nxLoadTunIPv4Action;
  12 import static org.opendaylight.groupbasedpolicy.renderer.ofoverlay.flow.FlowUtils.nxLoadTunIdAction;
  13 import static org.opendaylight.groupbasedpolicy.renderer.ofoverlay.flow.FlowUtils.nxOutputRegAction;
  14 import static org.opendaylight.groupbasedpolicy.renderer.ofoverlay.flow.FlowUtils.nxLoadNshc1RegAction;
  15 import static org.opendaylight.groupbasedpolicy.renderer.ofoverlay.flow.FlowUtils.nxLoadNshc2RegAction;
  16 import static org.opendaylight.groupbasedpolicy.renderer.ofoverlay.flow.FlowUtils.outputAction;
  17 import static org.opendaylight.groupbasedpolicy.renderer.ofoverlay.flow.FlowUtils.addNxTunIpv4DstMatch;
  18
  19 import java.math.BigInteger;
  20 import java.util.List;
  21
  22 import org.opendaylight.groupbasedpolicy.renderer.ofoverlay.OfContext;
  23 import org.opendaylight.groupbasedpolicy.renderer.ofoverlay.PolicyManager.FlowMap;
  24 import org.opendaylight.groupbasedpolicy.renderer.ofoverlay.flow.FlowUtils.RegMatch;
  25 import org.opendaylight.groupbasedpolicy.renderer.ofoverlay.flow.OrdinalFactory.EndpointFwdCtxOrdinals;
  26 import org.opendaylight.groupbasedpolicy.renderer.ofoverlay.flow.PolicyEnforcer.NetworkElements;
  27 import org.opendaylight.groupbasedpolicy.renderer.ofoverlay.sf.ChainAction;
  28 import org.opendaylight.groupbasedpolicy.renderer.ofoverlay.sfcutils.SfcNshHeader;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.list.ActionBuilder;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowId;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.Flow;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.FlowBuilder;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.Match;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.MatchBuilder;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.ofoverlay.rev140528.OfOverlayContext;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeId;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.match.rev140421.NxmNxReg0;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.match.rev140421.NxmNxReg1;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.match.rev140421.NxmNxReg4;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.match.rev140421.NxmNxReg5;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.match.rev140421.NxmNxReg6;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.match.rev140421.NxmNxReg7;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.overlay.rev150105.TunnelTypeVxlan;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.overlay.rev150105.TunnelTypeVxlanGpe;
  46 import org.slf4j.Logger;
  47 import org.slf4j.LoggerFactory;
  48
  49 public class ChainActionFlows {
  50
  51     private static final Logger LOG = LoggerFactory.getLogger(ChainAction.class);
  52
  53     public ChainActionFlows() {
  54
  55     }
  56
  57     public static void createChainTunnelFlows(SfcNshHeader sfcNshHeader, NetworkElements netElements, FlowMap flowMap,
  58             OfContext ctx) {
  59
  60         NodeId localNodeId = netElements.getLocalNodeId();
  61         NodeId destNodeId = netElements.getDstEp().getAugmentation(OfOverlayContext.class).getNodeId();
  62         NodeConnectorId localNodeTunPort = ctx.getSwitchManager().getTunnelPort(localNodeId, TunnelTypeVxlanGpe.class);
  63         NodeConnectorId destNodeTunPort = ctx.getSwitchManager().getTunnelPort(destNodeId, TunnelTypeVxlanGpe.class);
  64         if (localNodeTunPort == null || destNodeTunPort == null) {
  65             LOG.error("createChainTunnelFlows: No valid VXLAN GPE tunnel for Node {} or Node {}", localNodeId,
  66                     destNodeId);
  67             return;
  68         }
  69         flowMap.writeFlow(localNodeId, ctx.getPolicyManager().getTABLEID_PORTSECURITY(),
  70                 allowFromChainPort(localNodeTunPort, ctx.getPolicyManager().getTABLEID_PORTSECURITY(), ctx));
  71
  72         flowMap.writeFlow(localNodeId, ctx.getPolicyManager().getTABLEID_POLICY_ENFORCER(),
  73                 allowFromChainTunnel(localNodeTunPort, ctx.getPolicyManager().getTABLEID_POLICY_ENFORCER()));
  74
  75         flowMap.writeFlow(
  76                 localNodeId,
  77                 ctx.getPolicyManager().getTABLEID_EXTERNAL_MAPPER(),
  78                 createExternalFlow(sfcNshHeader, localNodeTunPort, netElements, ctx.getPolicyManager()
  79                     .getTABLEID_EXTERNAL_MAPPER(), ctx));
  80
  81         flowMap.writeFlow(
  82                 destNodeId,
  83                 ctx.getPolicyManager().getTABLEID_SOURCE_MAPPER(),
  84                 createChainTunnelFlow(sfcNshHeader, destNodeTunPort, netElements.getSrcEpOrds(), ctx.getPolicyManager()
  85                     .getTABLEID_SOURCE_MAPPER(), ctx));
  86
  87         flowMap.writeFlow(
  88                 destNodeId,
  89                 ctx.getPolicyManager().getTABLEID_SOURCE_MAPPER(),
  90                 createChainBroadcastFlow(sfcNshHeader, destNodeTunPort, netElements.getSrcEpOrds(),
  91                         ctx.getPolicyManager().getTABLEID_SOURCE_MAPPER(), ctx));
  92
  93     }
  94
  95     private static Flow createChainBroadcastFlow(SfcNshHeader sfcNshHeader, NodeConnectorId tunPort,
  96             EndpointFwdCtxOrdinals epFwdCtxOrds, short tableId, OfContext ctx) {
  97
  98         int fdId = epFwdCtxOrds.getFdId();
  99
 100         MatchBuilder mb = new MatchBuilder().setInPort(tunPort);
 101
 102         addNxNsiMatch(mb, sfcNshHeader.getNshNsiFromChain());
 103         addNxNspMatch(mb, sfcNshHeader.getNshNspFromChain());
 104         addNxTunIdMatch(mb, fdId);
 105
 106         org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.Action fdReg = nxLoadRegAction(
 107                 NxmNxReg5.class, BigInteger.valueOf(fdId));
 108
 109         Match match = mb.build();
 110         FlowId flowId = FlowIdUtils.newFlowId(tableId, "chainbroadcast", match);
 111
 112         FlowBuilder flowb = base(tableId).setId(flowId)
 113             .setPriority(Integer.valueOf(150))
 114             .setMatch(match)
 115             .setInstructions(
 116                     instructions(applyActionIns(fdReg), gotoTableIns(ctx.getPolicyManager()
 117                         .getTABLEID_DESTINATION_MAPPER())));
 118         return flowb.build();
 119     }
 120
 121     private static Flow createExternalFlow(SfcNshHeader sfcNshHeader, NodeConnectorId tunPort,
 122              NetworkElements netElements, short tableId, OfContext ctx) {
 123
 124         Integer priority = 1000;
 125
 126         org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.Action loadC1 = nxLoadNshc1RegAction(sfcNshHeader.getNshMetaC1());
 127         org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.Action loadC2 = nxLoadNshc2RegAction(sfcNshHeader.getNshMetaC2());
 128         org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.Action loadChainTunVnid =
 129                 nxLoadTunIdAction(BigInteger.valueOf(netElements.getSrcEpOrds().getTunnelId()), false);
 130         org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.Action loadChainTunDest = nxLoadTunIPv4Action(sfcNshHeader.getNshTunIpDst().getValue(), false);
 131
 132
 133         MatchBuilder mb = new MatchBuilder();
 134         addNxRegMatch(mb, RegMatch.of(NxmNxReg6.class, Long.valueOf(netElements.getDstEpOrds().getL3Id())));
 135         addNxTunIdMatch(mb, netElements.getSrcEpOrds().getTunnelId());
 136         addNxNspMatch(mb, sfcNshHeader.getNshNspToChain());
 137         addNxNsiMatch(mb, sfcNshHeader.getNshNsiToChain());
 138         if (!netElements.getDstEp().getAugmentation(OfOverlayContext.class).getNodeId().equals(netElements.getLocalNodeId())) {
 139             addNxTunIpv4DstMatch(mb, ctx.getSwitchManager().getTunnelIP(netElements.getDstNodeId(), TunnelTypeVxlan.class).getIpv4Address());
 140             priority = 1500;
 141         }
 142
 143         Match match = mb.build();
 144         FlowId flowId = FlowIdUtils.newFlowId(tableId, "chainexternal", match);
 145         FlowBuilder flowb = base(tableId).setId(flowId)
 146             .setPriority(Integer.valueOf(priority))
 147             .setMatch(match)
 148             .setInstructions(instructions(applyActionIns(loadC1, loadC2, loadChainTunDest, loadChainTunVnid, outputAction(tunPort))));
 149         return flowb.build();
 150     }
 151
 152     private static Flow createChainTunnelFlow(SfcNshHeader sfcNshHeader, NodeConnectorId tunPort,
 153             EndpointFwdCtxOrdinals epFwdCtxOrds, short tableId, OfContext ctx) {
 154
 155         int egId = epFwdCtxOrds.getEpgId();
 156         int bdId = epFwdCtxOrds.getBdId();
 157         int fdId = epFwdCtxOrds.getFdId();
 158         int l3Id = epFwdCtxOrds.getL3Id();
 159         int tunnelId = epFwdCtxOrds.getTunnelId();
 160
 161         MatchBuilder mb = new MatchBuilder().setInPort(tunPort);
 162         addNxTunIdMatch(mb, tunnelId);
 163         addNxNspMatch(mb, sfcNshHeader.getNshNspFromChain());
 164         addNxNsiMatch(mb, sfcNshHeader.getNshNsiFromChain());
 165
 166         org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.Action segReg = nxLoadRegAction(
 167                 NxmNxReg0.class, BigInteger.valueOf(egId));
 168         org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.Action scgReg = nxLoadRegAction(
 169                 NxmNxReg1.class, BigInteger.valueOf(0xffffff));
 170         org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.Action bdReg = nxLoadRegAction(
 171                 NxmNxReg4.class, BigInteger.valueOf(bdId));
 172         org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.Action fdReg = nxLoadRegAction(
 173                 NxmNxReg5.class, BigInteger.valueOf(fdId));
 174         org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.Action vrfReg = nxLoadRegAction(
 175                 NxmNxReg6.class, BigInteger.valueOf(l3Id));
 176
 177         Match match = mb.build();
 178         FlowId flowId = FlowIdUtils.newFlowId(tableId, "chaintunnel", match);
 179         FlowBuilder flowb = base(tableId).setId(flowId)
 180             .setPriority(Integer.valueOf(150))
 181             .setMatch(match)
 182             .setInstructions(
 183                     instructions(applyActionIns(segReg, scgReg, bdReg, fdReg, vrfReg),
 184                             gotoTableIns(ctx.getPolicyManager().getTABLEID_DESTINATION_MAPPER())));
 185         return flowb.build();
 186     }
 187
 188     private static Flow allowFromChainPort(NodeConnectorId port, short tableId, OfContext ctx) {
 189
 190         Match match = new MatchBuilder().setInPort(port).build();
 191         FlowId flowId = FlowIdUtils.newFlowId(tableId, "chainport", match);
 192         FlowBuilder flowb = base(tableId).setId(flowId)
 193             .setPriority(Integer.valueOf(200))
 194             .setMatch(match)
 195             .setInstructions(FlowUtils.gotoTableInstructions(ctx.getPolicyManager().getTABLEID_SOURCE_MAPPER()));
 196         return flowb.build();
 197     }
 198
 199     private static Flow allowFromChainTunnel(NodeConnectorId tunPort, short tableId) {
 200
 201         MatchBuilder mb = new MatchBuilder().setInPort(tunPort);
 202         addNxRegMatch(mb, RegMatch.of(NxmNxReg1.class, Long.valueOf(0xffffff)));
 203         Match match = mb.build();
 204         FlowId flowId = FlowIdUtils.newFlowId(tableId, "chainport", match);
 205
 206         FlowBuilder flow = base(tableId).setId(flowId)
 207             .setMatch(match)
 208             .setPriority(65000)
 209             .setInstructions(instructions(applyActionIns(nxOutputRegAction(NxmNxReg7.class))));
 210         return flow.build();
 211
 212     }
 213
 214     /**
 215      * Get a base flow builder with some common features already set
 216      */
 217     private static FlowBuilder base(short tableId) {
 218         return new FlowBuilder().setTableId(tableId).setBarrier(false).setHardTimeout(0).setIdleTimeout(0);
 219     }
 220 }