| 1 | "use strict";
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| 2 | Object.defineProperty(exports, "__esModule", { value: true });
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| 3 | const log_1 = require("../common/log");
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| 4 | const log = log_1.create('dragon');
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| 5 | const relation_1 = require("./relation");
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| 6 | function canDragonFilter(routingTable, getRelation, prefix, route) {
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| 7 | for (const parentPrefix of routingTable.getKeysPrefixesOf(prefix)) {
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| 8 | const parentRouteUpdate = routingTable.get(parentPrefix);
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| 9 | if (!parentRouteUpdate || !parentRouteUpdate.route) {
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| 10 | log.warn('found a parent prefix, but no parent route; this should never happen. prefix=%s parentPrefix=%s', prefix, parentPrefix);
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| 11 | continue;
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| 12 | }
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| 13 | const parentRoute = parentRouteUpdate.route;
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| 14 | if (parentRoute.nextHop === '') {
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| 15 | continue;
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| 16 | }
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| 17 | const parentRelation = getRelation(parentRoute.nextHop);
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| 18 | const childRelation = getRelation(route.nextHop);
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| 19 | if (relation_1.getRelationPriority(parentRelation) < relation_1.getRelationPriority(childRelation)) {
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| 20 | continue;
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| 21 | }
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| 22 | log.trace('applied DRAGON route filter. prefix=%s parentPrefix=%s', prefix, parentPrefix);
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| 23 | return true;
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| 24 | }
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| 25 | return false;
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| 26 | }
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| 27 | exports.canDragonFilter = canDragonFilter;
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| 28 | |
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