Examples with AsPathSetElem org.batfish.datamodel.routing_policy.expr.AsPathSetElem used on opensource projects

Example 1 with AsPathSetElem

use of org.batfish.datamodel.routing_policy.expr.AsPathSetElem in project batfish by batfish.

the class CiscoConfiguration method toAsPathAccessList.

private AsPathAccessList toAsPathAccessList(AsPathSet asPathSet) {
    String name = asPathSet.getName();
    AsPathAccessList list = new AsPathAccessList(name);
    for (AsPathSetElem elem : asPathSet.getElements()) {
        AsPathAccessListLine line = toAsPathAccessListLine(elem);
        list.getLines().add(line);
    }
    return list;
}

Example 2 with AsPathSetElem

use of org.batfish.datamodel.routing_policy.expr.AsPathSetElem in project batfish by batfish.

the class BatfishCompressor method matchExternalTraffic.

/**
 * Create a filter that only allows traffic for those prefixes if it came from outside. EXTERNAL =
 * (protocol is bgp or ibgp) and (the AS path is not an internal path) MATCH = destination matches
 * the prefixTrie GUARD = EXTERNAL or MATCH (only allow this traffic through)
 */
@Nonnull
private BooleanExpr matchExternalTraffic() {
    List<AsPathSetElem> elements = new ArrayList<>();
    elements.add(new RegexAsPathSetElem(_internalRegex));
    ExplicitAsPathSet expr = new ExplicitAsPathSet(elements);
    MatchAsPath matchPath = new MatchAsPath(expr);
    MatchProtocol mpBgp = new MatchProtocol(RoutingProtocol.BGP);
    MatchProtocol mpIbgp = new MatchProtocol(RoutingProtocol.IBGP);
    Disjunction d = new Disjunction();
    List<BooleanExpr> disjuncts = new ArrayList<>();
    disjuncts.add(mpBgp);
    disjuncts.add(mpIbgp);
    d.setDisjuncts(disjuncts);
    Not n = new Not(matchPath);
    Conjunction c = new Conjunction();
    List<BooleanExpr> conjuncts = new ArrayList<>();
    conjuncts.add(d);
    conjuncts.add(n);
    c.setConjuncts(conjuncts);
    return c;
}

Example 3 with AsPathSetElem

use of org.batfish.datamodel.routing_policy.expr.AsPathSetElem in project batfish by batfish.

the class CiscoControlPlaneExtractor method exitAs_path_set_stanza.

@Override
public void exitAs_path_set_stanza(As_path_set_stanzaContext ctx) {
    String name = ctx.name.getText();
    int definitionLine = ctx.name.getStart().getLine();
    AsPathSet asPathSet = _configuration.getAsPathSets().get(name);
    if (asPathSet != null) {
        _w.redFlag("Redeclaration of as-path-set: '" + name + "'");
    }
    asPathSet = new AsPathSet(name, definitionLine);
    _configuration.getAsPathSets().put(name, asPathSet);
    for (As_path_set_elemContext elemCtx : ctx.elems) {
        AsPathSetElem elem = toAsPathSetElem(elemCtx);
        asPathSet.getElements().add(elem);
    }
}