Examples with GeneratedRoute org.batfish.datamodel.GeneratedRoute used on opensource projects

Example 1 with GeneratedRoute

use of org.batfish.datamodel.GeneratedRoute in project batfish by batfish.

the class VirtualRouter method initBgpAggregateRoutes.

/**
 * This function creates BGP routes from generated routes that go into the BGP RIB, but cannot be
 * imported into the main RIB. The purpose of these routes is to prevent the local router from
 * accepting advertisements less desirable than the local generated ones for the given network.
 * They are not themselves advertised.
 */
void initBgpAggregateRoutes() {
    // first import aggregates
    switch(_c.getConfigurationFormat()) {
        case JUNIPER:
        case JUNIPER_SWITCH:
            return;
        // $CASES-OMITTED$
        default:
            break;
    }
    for (AbstractRoute grAbstract : _generatedRib.getRoutes()) {
        GeneratedRoute gr = (GeneratedRoute) grAbstract;
        BgpRoute.Builder b = new BgpRoute.Builder();
        b.setAdmin(gr.getAdministrativeCost());
        b.setAsPath(gr.getAsPath().getAsSets());
        b.setMetric(gr.getMetric());
        b.setSrcProtocol(RoutingProtocol.AGGREGATE);
        b.setProtocol(RoutingProtocol.AGGREGATE);
        b.setNetwork(gr.getNetwork());
        b.setLocalPreference(BgpRoute.DEFAULT_LOCAL_PREFERENCE);
        /* Note: Origin type and originator IP should get overwritten, but are needed initially */
        b.setOriginatorIp(_vrf.getBgpProcess().getRouterId());
        b.setOriginType(OriginType.INCOMPLETE);
        b.setReceivedFromIp(Ip.ZERO);
        BgpRoute br = b.build();
        br.setNonRouting(true);
        _bgpMultipathRib.mergeRoute(br);
        _bgpBestPathRib.mergeRoute(br);
    }
}

Example 2 with GeneratedRoute

use of org.batfish.datamodel.GeneratedRoute in project batfish by batfish.

the class Optimizations method computeRelevantAggregates.

/*
   * Computes aggregates that are applicable to the encoding.
   */
private void computeRelevantAggregates() {
    _encoderSlice.getGraph().getConfigurations().forEach((router, conf) -> {
        List<GeneratedRoute> routes = new ArrayList<>();
        _relevantAggregates.put(router, routes);
        for (GeneratedRoute gr : conf.getDefaultVrf().getGeneratedRoutes()) {
            Prefix p = gr.getNetwork();
            if (_encoderSlice.relevantPrefix(p)) {
                routes.add(gr);
            }
        }
    });
}

Example 3 with GeneratedRoute

use of org.batfish.datamodel.GeneratedRoute in project batfish by batfish.

the class TransferSSA method aggregateRoutes.

/*
   * Determines whether to model each aggregate route as
   * suppressing a more specific, or including the more specific
   */
private Map<Prefix, Boolean> aggregateRoutes() {
    Map<Prefix, Boolean> acc = new HashMap<>();
    String name = _conf.getName();
    List<GeneratedRoute> aggregates = _enc.getOptimizations().getRelevantAggregates().get(name);
    Set<Prefix> suppressed = _enc.getOptimizations().getSuppressedAggregates().get(name);
    for (GeneratedRoute gr : aggregates) {
        Prefix p = gr.getNetwork();
        acc.put(p, suppressed.contains(p));
    }
    return acc;
}

Example 4 with GeneratedRoute

use of org.batfish.datamodel.GeneratedRoute in project batfish by batfish.

the class VirtualRouter method activateGeneratedRoutes.

boolean activateGeneratedRoutes() {
    boolean changed = false;
    for (GeneratedRoute gr : _vrf.getGeneratedRoutes()) {
        boolean active = true;
        String generationPolicyName = gr.getGenerationPolicy();
        GeneratedRoute.Builder grb = new GeneratedRoute.Builder();
        grb.setNetwork(gr.getNetwork());
        grb.setAdmin(gr.getAdministrativeCost());
        grb.setMetric(gr.getMetric() != null ? gr.getMetric() : 0);
        grb.setAttributePolicy(gr.getAttributePolicy());
        grb.setGenerationPolicy(gr.getGenerationPolicy());
        boolean discard = gr.getDiscard();
        grb.setDiscard(discard);
        if (discard) {
            grb.setNextHopInterface(Interface.NULL_INTERFACE_NAME);
        }
        if (generationPolicyName != null) {
            RoutingPolicy generationPolicy = _c.getRoutingPolicies().get(generationPolicyName);
            if (generationPolicy != null) {
                active = false;
                for (AbstractRoute contributingRoute : _prevMainRib.getRoutes()) {
                    boolean accept = generationPolicy.process(contributingRoute, grb, null, _key, Direction.OUT);
                    if (accept) {
                        if (!discard) {
                            grb.setNextHopIp(contributingRoute.getNextHopIp());
                        }
                        active = true;
                        break;
                    }
                }
            }
        }
        if (active) {
            GeneratedRoute newGr = grb.build();
            if (_generatedRib.mergeRoute(newGr)) {
                changed = true;
            }
        }
    }
    return changed;
}