Examples with DNSName org.minidns.dnsname.DNSName used on opensource projects

Example 16 with DNSName

use of org.minidns.dnsname.DNSName in project minidns by MiniDNS.

the class DNSMessageTest method testMXLookup.

@Test
public void testMXLookup() throws Exception {
    DNSMessage m = getMessageFromResource("gmail-mx");
    assertFalse(m.authoritativeAnswer);
    List<Record<? extends Data>> answers = m.answerSection;
    assertEquals(5, answers.size());
    Map<Integer, DNSName> mxes = new TreeMap<>();
    for (Record<? extends Data> r : answers) {
        assertCsEquals("gmail.com", r.name);
        Data d = r.getPayload();
        assertTrue(d instanceof MX);
        assertEquals(TYPE.MX, d.getType());
        mxes.put(((MX) d).priority, ((MX) d).target);
    }
    assertCsEquals("gmail-smtp-in.l.google.com", mxes.get(5));
    assertCsEquals("alt1.gmail-smtp-in.l.google.com", mxes.get(10));
    assertCsEquals("alt2.gmail-smtp-in.l.google.com", mxes.get(20));
    assertCsEquals("alt3.gmail-smtp-in.l.google.com", mxes.get(30));
    assertCsEquals("alt4.gmail-smtp-in.l.google.com", mxes.get(40));
}

Example 17 with DNSName

use of org.minidns.dnsname.DNSName in project minidns by MiniDNS.

the class DNSNameTest method rawFieldsKeepCase.

@Test
public void rawFieldsKeepCase() {
    String mixedCaseDnsName = "UP.low.UP.low.UP";
    DNSName mixedCase = DNSName.from(mixedCaseDnsName);
    assertEquals(mixedCaseDnsName, mixedCase.getRawAce());
}

Example 18 with DNSName

use of org.minidns.dnsname.DNSName in project minidns by MiniDNS.

the class DNSSECClient method verifyNsec.

private Set<UnverifiedReason> verifyNsec(DNSMessage dnsMessage) throws IOException {
    Set<UnverifiedReason> result = new HashSet<>();
    Question q = dnsMessage.questions.get(0);
    boolean validNsec = false;
    boolean nsecPresent = false;
    DNSName zone = null;
    List<Record<? extends Data>> nameserverRecords = dnsMessage.authoritySection;
    for (Record<? extends Data> nameserverRecord : nameserverRecords) {
        if (nameserverRecord.type == TYPE.SOA)
            zone = nameserverRecord.name;
    }
    if (zone == null)
        throw new DNSSECValidationFailedException(q, "NSECs must always match to a SOA");
    for (Record<? extends Data> record : nameserverRecords) {
        UnverifiedReason reason;
        switch(record.type) {
            case NSEC:
                nsecPresent = true;
                reason = verifier.verifyNsec(record, q);
                break;
            case NSEC3:
                nsecPresent = true;
                reason = verifier.verifyNsec3(zone, record, q);
                break;
            default:
                continue;
        }
        if (reason != null) {
            result.add(reason);
        } else {
            validNsec = true;
        }
    }
    if (nsecPresent && !validNsec) {
        throw new DNSSECValidationFailedException(q, "Invalid NSEC!");
    }
    List<Record<? extends Data>> toBeVerified = dnsMessage.copyAuthority();
    VerifySignaturesResult verifiedSignatures = verifySignatures(q, nameserverRecords, toBeVerified);
    if (validNsec && verifiedSignatures.reasons.isEmpty()) {
        result.clear();
    } else {
        result.addAll(verifiedSignatures.reasons);
    }
    if (!toBeVerified.isEmpty() && toBeVerified.size() != nameserverRecords.size()) {
        throw new DNSSECValidationFailedException(q, "Only some nameserver records are signed!");
    }
    return result;
}

Example 19 with DNSName

use of org.minidns.dnsname.DNSName in project minidns by MiniDNS.

the class Verifier method verifyNsec3.

public UnverifiedReason verifyNsec3(DNSName zone, Record<? extends Data> nsec3record, Question q) {
    NSEC3 nsec3 = (NSEC3) nsec3record.payloadData;
    DigestCalculator digestCalculator = algorithmMap.getNsecDigestCalculator(nsec3.hashAlgorithm);
    if (digestCalculator == null) {
        return new AlgorithmNotSupportedReason(nsec3.hashAlgorithmByte, nsec3.getType(), nsec3record);
    }
    byte[] bytes = nsec3hash(digestCalculator, nsec3.salt, q.name.getBytes(), nsec3.iterations);
    String s = Base32.encodeToString(bytes);
    DNSName computedNsec3Record = DNSName.from(s + "." + zone);
    if (nsec3record.name.equals(computedNsec3Record)) {
        for (TYPE type : nsec3.types) {
            if (type.equals(q.type)) {
                return new NSECDoesNotMatchReason(q, nsec3record);
            }
        }
        return null;
    }
    if (nsecMatches(s, nsec3record.name.getHostpart(), Base32.encodeToString(nsec3.nextHashed))) {
        return null;
    }
    return new NSECDoesNotMatchReason(q, nsec3record);
}

Example 20 with DNSName

use of org.minidns.dnsname.DNSName in project minidns by MiniDNS.

the class InetAddressUtilTest method testReverseInet6Address.

@Test
public void testReverseInet6Address() {
    Inet6Address inet6Address = InetAddressUtil.ipv6From(VALID_IPV6[0]);
    DNSName reversedIpv6Address = InetAddressUtil.reverseIpAddressOf(inet6Address);
    assertEquals(DNSName.from("3.0.a.2.0.0.0.4.2.0.0.0.5.f.2.0.0.0.0.0.0.0.0.0.0.0.0.0.1.0.0.0"), reversedIpv6Address);
}