Examples with EqExpr org.batfish.z3.expr.EqExpr used on opensource projects

Example 1 with EqExpr

use of org.batfish.z3.expr.EqExpr in project batfish by batfish.

the class BlacklistDstIpQuerySynthesizer method getReachabilityProgram.

@Override
public ReachabilityProgram getReachabilityProgram(SynthesizerInput input) {
    ImmutableList.Builder<BooleanExpr> queryConditionsBuilder = ImmutableList.builder();
    queryConditionsBuilder.add(SaneExpr.INSTANCE);
    for (Ip blacklistIp : _blacklistIps) {
        BooleanExpr blacklistIpCondition = new NotExpr(new EqExpr(new VarIntExpr(BasicHeaderField.DST_IP), new LitIntExpr(blacklistIp)));
        queryConditionsBuilder.add(blacklistIpCondition);
    }
    return ReachabilityProgram.builder().setInput(input).setQueries(ImmutableList.of(new QueryStatement(Query.INSTANCE))).setRules(ImmutableList.of(new BasicRuleStatement(new AndExpr(queryConditionsBuilder.build()), ImmutableSet.of(), Query.INSTANCE))).build();
}

Example 2 with EqExpr

use of org.batfish.z3.expr.EqExpr in project batfish by batfish.

the class SimplifierTest method testSimplifyEqStaticallyFalse.

/**
 * Test that an EQ node with LHS and RHS statically determinable to be unequal simplifies to
 * FALSE.
 */
@Test
public void testSimplifyEqStaticallyFalse() {
    IntExpr i1 = new LitIntExpr(Ip.ZERO);
    IntExpr i2 = new LitIntExpr(Ip.MAX);
    EqExpr eq = new EqExpr(i1, i2);
    assertThat(simplifyBooleanExpr(eq), equalTo(FalseExpr.INSTANCE));
}

Example 3 with EqExpr

use of org.batfish.z3.expr.EqExpr in project batfish by batfish.

the class SimplifierTest method testSimplifyEqSame.

/**
 * Test that an EQ node with syntactically equal LHS and RHS simplifies to TRUE.
 */
@Test
public void testSimplifyEqSame() {
    IntExpr i1 = new VarIntExpr(BasicHeaderField.DST_IP);
    EqExpr eq = new EqExpr(i1, i1);
    assertThat(simplifyBooleanExpr(eq), equalTo(TrueExpr.INSTANCE));
}

Example 4 with EqExpr

use of org.batfish.z3.expr.EqExpr in project batfish by batfish.

the class DefaultTransitionGenerator method visitPreOutEdgePostNat_generateNoMatchSourceNatRules.

private void visitPreOutEdgePostNat_generateNoMatchSourceNatRules(String node1, String iface1, String node2, String iface2) {
    List<Entry<AclPermit, BooleanExpr>> sourceNats = _input.getSourceNats().getOrDefault(node1, ImmutableMap.of()).getOrDefault(iface1, ImmutableList.of());
    ImmutableSet.Builder<StateExpr> preStates = ImmutableSet.builder();
    preStates.add(new PreOutEdge(node1, iface1, node2, iface2));
    sourceNats.stream().map(Entry::getKey).map(aclPermit -> new AclDeny(aclPermit.getHostname(), aclPermit.getAcl())).forEach(preStates::add);
    _rules.add(new TransformationRuleStatement(new EqExpr(new VarIntExpr(TransformationHeaderField.NEW_SRC_IP), new VarIntExpr(TransformationHeaderField.NEW_SRC_IP.getCurrent())), preStates.build(), ImmutableSet.of(), new PreOutEdgePostNat(node1, iface1, node2, iface2)));
}

Example 5 with EqExpr

use of org.batfish.z3.expr.EqExpr in project batfish by batfish.

the class BoolExprTransformerTest method testVisitEqExpr.

@Test
public void testVisitEqExpr() {
    IntExpr i1Batfish = newIntAtom();
    IntExpr i2Batfish = newIntAtom();
    BitVecExpr i1Z3 = toBitVecExpr(i1Batfish, _nodContext);
    BitVecExpr i2Z3 = toBitVecExpr(i2Batfish, _nodContext);
    assertThat(toBoolExpr(new EqExpr(i1Batfish, i2Batfish), _input, _nodContext), equalTo(_ctx.mkEq(i1Z3, i2Z3)));
}