Sangho Shin | 177e64f | 2014-10-28 17:49:23 -0700 | [diff] [blame] | 1 | package net.onrc.onos.apps.segmentrouting; |
| 2 | |
| 3 | import java.io.IOException; |
| 4 | import java.util.ArrayList; |
| 5 | import java.util.List; |
| 6 | |
| 7 | import net.floodlightcontroller.core.IOF13Switch; |
| 8 | import net.onrc.onos.apps.segmentrouting.SegmentRoutingTunnel.TunnelRouteInfo; |
| 9 | import net.onrc.onos.core.matchaction.MatchAction; |
| 10 | import net.onrc.onos.core.matchaction.MatchActionId; |
| 11 | import net.onrc.onos.core.matchaction.MatchActionOperationEntry; |
| 12 | import net.onrc.onos.core.matchaction.MatchActionOperations.Operator; |
| 13 | import net.onrc.onos.core.matchaction.action.Action; |
| 14 | import net.onrc.onos.core.matchaction.action.DecNwTtlAction; |
| 15 | import net.onrc.onos.core.matchaction.action.GroupAction; |
| 16 | import net.onrc.onos.core.matchaction.match.PacketMatch; |
| 17 | import net.onrc.onos.core.util.SwitchPort; |
| 18 | |
| 19 | import org.slf4j.Logger; |
| 20 | import org.slf4j.LoggerFactory; |
| 21 | |
| 22 | import com.esotericsoftware.minlog.Log; |
| 23 | |
| 24 | public class SegmentRoutingPolicyTunnel extends SegmentRoutingPolicy { |
| 25 | |
| 26 | private static final Logger log = LoggerFactory |
| 27 | .getLogger(SegmentRoutingPolicyTunnel.class); |
| 28 | |
| 29 | private String tunnelId; |
| 30 | |
| 31 | public SegmentRoutingPolicyTunnel(SegmentRoutingManager srm, String pid, |
| 32 | PolicyType type, PacketMatch match, int priority, String tid) { |
| 33 | super(srm, pid, type, match, priority); |
| 34 | this.tunnelId = tid; |
| 35 | // TODO Auto-generated constructor stub |
| 36 | } |
| 37 | |
| 38 | @Override |
| 39 | public boolean createPolicy() { |
| 40 | |
| 41 | SegmentRoutingTunnel tunnelInfo = srManager.getTunnelInfo(tunnelId); |
| 42 | |
| 43 | List<TunnelRouteInfo> routes = tunnelInfo.getRoutes(); |
| 44 | |
| 45 | for (TunnelRouteInfo route : routes) { |
| 46 | List<Action> actions = new ArrayList<>(); |
| 47 | |
| 48 | // Check PHP was done by stitching |
| 49 | // If no MPLS label is added, then NW TTL needs to be decremented |
| 50 | if (route.getRoute().isEmpty()) { |
| 51 | DecNwTtlAction decNwTtlAction = new DecNwTtlAction(1); |
| 52 | actions.add(decNwTtlAction); |
| 53 | } |
| 54 | |
| 55 | GroupAction groupAction = new GroupAction(); |
| 56 | groupAction.setGroupId(route.getGroupId()); |
| 57 | actions.add(groupAction); |
| 58 | |
| 59 | MatchAction matchAction = new MatchAction(new MatchActionId( |
| 60 | srManager.getNextMatchActionID()), |
| 61 | new SwitchPort((long) 0, (short) 0), match, priority, |
| 62 | actions); |
| 63 | MatchActionOperationEntry maEntry = |
| 64 | new MatchActionOperationEntry(Operator.ADD, matchAction); |
| 65 | |
| 66 | IOF13Switch sw13 = srManager.getIOF13Switch(route.getSrcSwDpid()); |
| 67 | |
| 68 | if (sw13 != null) { |
| 69 | srManager.printMatchActionOperationEntry(sw13, maEntry); |
| 70 | try { |
| 71 | sw13.pushFlow(maEntry); |
| 72 | } catch (IOException e) { |
| 73 | e.printStackTrace(); |
| 74 | return false; |
| 75 | } |
| 76 | } |
| 77 | else { |
| 78 | Log.warn("Cannot find the target switch {}", route.getSrcSwDpid()); |
| 79 | return false; |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | return true; |
| 84 | } |
| 85 | |
| 86 | @Override |
| 87 | public boolean removePolicy() { |
| 88 | |
| 89 | List<Action> actions = new ArrayList<>(); |
| 90 | int gropuId = 0; // dummy group ID |
| 91 | GroupAction groupAction = new GroupAction(); |
| 92 | groupAction.setGroupId(gropuId); |
| 93 | actions.add(groupAction); |
| 94 | |
| 95 | MatchAction matchAction = new MatchAction(new MatchActionId( |
| 96 | srManager.getNextMatchActionID()), |
| 97 | new SwitchPort((long) 0, (short) 0), match, priority, |
| 98 | actions); |
| 99 | MatchActionOperationEntry maEntry = |
| 100 | new MatchActionOperationEntry(Operator.REMOVE, matchAction); |
| 101 | |
| 102 | SegmentRoutingTunnel tunnel = srManager.getTunnelInfo(tunnelId); |
| 103 | if (tunnel == null) { |
| 104 | log.warn("Cannot find the tunnel {} for the policy {}", tunnelId, |
| 105 | policyId); |
| 106 | return false; |
| 107 | } |
| 108 | List<TunnelRouteInfo> routes = tunnel.getRoutes(); |
| 109 | |
| 110 | for (TunnelRouteInfo route : routes) { |
| 111 | IOF13Switch sw13 = srManager.getIOF13Switch(route.getSrcSwDpid()); |
| 112 | if (sw13 == null) { |
| 113 | log.warn("Cannt find the switch {}", route.getSrcSwDpid()); |
| 114 | return false; |
| 115 | } |
| 116 | else { |
| 117 | srManager.printMatchActionOperationEntry(sw13, maEntry); |
| 118 | try { |
| 119 | sw13.pushFlow(maEntry); |
| 120 | } catch (IOException e) { |
| 121 | e.printStackTrace(); |
| 122 | log.debug("policy remove failed due to pushFlow() exception"); |
| 123 | return false; |
| 124 | } |
| 125 | } |
| 126 | } |
| 127 | |
| 128 | return true; |
| 129 | } |
| 130 | |
| 131 | |
| 132 | public String getTunnelId(){ |
| 133 | return this.tunnelId; |
| 134 | } |
| 135 | |
| 136 | } |