Examples with Data org.minidns.record.Data used on opensource projects

Example 11 with Data

use of org.minidns.record.Data in project minidns by MiniDNS.

the class Verifier method combine.

static byte[] combine(RRSIG rrsig, List<Record<? extends Data>> records) {
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    DataOutputStream dos = new DataOutputStream(bos);
    // Write RRSIG without signature
    try {
        rrsig.writePartialSignature(dos);
        DNSName sigName = records.get(0).name;
        if (!sigName.isRootLabel()) {
            if (sigName.getLabelCount() < rrsig.labels) {
                throw new DNSSECValidationFailedException("Invalid RRsig record");
            }
            if (sigName.getLabelCount() > rrsig.labels) {
                // Expand wildcards
                sigName = DNSName.from("*." + sigName.stripToLabels(rrsig.labels));
            }
        }
        List<byte[]> recordBytes = new ArrayList<>();
        for (Record<? extends Data> record : records) {
            Record<Data> ref = new Record<>(sigName, record.type, record.clazzValue, rrsig.originalTtl, (Data) record.payloadData);
            recordBytes.add(ref.toByteArray());
        }
        // Sort correctly (cause they might be ordered randomly)
        // Where the RDATA begins
        final int offset = sigName.size() + 10;
        Collections.sort(recordBytes, new Comparator<byte[]>() {

            @Override
            public int compare(byte[] b1, byte[] b2) {
                for (int i = offset; i < b1.length && i < b2.length; i++) {
                    if (b1[i] != b2[i]) {
                        return (b1[i] & 0xFF) - (b2[i] & 0xFF);
                    }
                }
                return b1.length - b2.length;
            }
        });
        for (byte[] recordByte : recordBytes) {
            dos.write(recordByte);
        }
        dos.flush();
    } catch (IOException e) {
        // Never happens
        throw new RuntimeException(e);
    }
    return bos.toByteArray();
}

Example 12 with Data

use of org.minidns.record.Data in project minidns by MiniDNS.

the class DNSMessage method getAnswersFor.

public <D extends Data> Set<D> getAnswersFor(Question q) {
    if (responseCode != RESPONSE_CODE.NO_ERROR)
        return null;
    // It would be great if we could verify that D matches q.type at this
    // point. But on the other hand, if it does not, then the cast to D
    // below will fail.
    Set<D> res = new HashSet<>(answerSection.size());
    for (Record<? extends Data> record : answerSection) {
        if (!record.isAnswer(q))
            continue;
        Data data = record.getPayload();
        @SuppressWarnings("unchecked") D d = (D) data;
        boolean isNew = res.add(d);
        if (!isNew) {
            LOGGER.log(Level.WARNING, "DNSMessage contains duplicate answers. Record: " + record + "; DNSMessage: " + this);
        }
    }
    return res;
}

Example 13 with Data

use of org.minidns.record.Data in project minidns by MiniDNS.

the class DNSMessageTest method testComDsAndRrsigLookup.

@Test
public void testComDsAndRrsigLookup() throws Exception {
    DNSMessage m = getMessageFromResource("com-ds-rrsig");
    assertFalse(m.authoritativeAnswer);
    assertTrue(m.recursionDesired);
    assertTrue(m.recursionAvailable);
    List<Record<? extends Data>> answers = m.answerSection;
    assertEquals(2, answers.size());
    assertEquals(TYPE.DS, answers.get(0).type);
    assertEquals(TYPE.DS, answers.get(0).payloadData.getType());
    DS ds = (DS) answers.get(0).payloadData;
    assertEquals(30909, ds.keyTag);
    assertEquals(SignatureAlgorithm.RSASHA256, ds.algorithm);
    assertEquals(DigestAlgorithm.SHA256, ds.digestType);
    assertCsEquals("E2D3C916F6DEEAC73294E8268FB5885044A833FC5459588F4A9184CFC41A5766", ds.getDigestHex());
    assertEquals(TYPE.RRSIG, answers.get(1).type);
    assertEquals(TYPE.RRSIG, answers.get(1).payloadData.getType());
    RRSIG rrsig = (RRSIG) answers.get(1).payloadData;
    assertEquals(TYPE.DS, rrsig.typeCovered);
    assertEquals(SignatureAlgorithm.RSASHA256, rrsig.algorithm);
    assertEquals(1, rrsig.labels);
    assertEquals(86400, rrsig.originalTtl);
    SimpleDateFormat dateFormat = new SimpleDateFormat("yyyyMMddHHmmss");
    dateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
    assertCsEquals("20150629170000", dateFormat.format(rrsig.signatureExpiration));
    assertCsEquals("20150619160000", dateFormat.format(rrsig.signatureInception));
    assertEquals(48613, rrsig.keyTag);
    assertCsEquals(".", rrsig.signerName);
    assertEquals(128, rrsig.signature.length);
    List<Record<? extends Data>> arr = m.additionalSection;
    assertEquals(1, arr.size());
    assertEquals(TYPE.OPT, arr.get(0).getPayload().getType());
    Record<? extends Data> opt = arr.get(0);
    EDNS edns = EDNS.fromRecord(opt);
    assertEquals(512, edns.udpPayloadSize);
    assertEquals(0, edns.version);
    assertTrue(edns.dnssecOk);
}

Example 14 with Data

use of org.minidns.record.Data in project minidns by MiniDNS.

the class DNSMessageTest method testAAAALookup.

@Test
public void testAAAALookup() throws Exception {
    DNSMessage m = getMessageFromResource("google-aaaa");
    assertFalse(m.authoritativeAnswer);
    List<Record<? extends Data>> answers = m.answerSection;
    assertEquals(1, answers.size());
    Record<? extends Data> answer = answers.get(0);
    assertCsEquals("google.com", answer.name);
    assertTrue(answer.getPayload() instanceof AAAA);
    assertEquals(TYPE.AAAA, answer.getPayload().getType());
    assertCsEquals("2a00:1450:400c:c02:0:0:0:8a", answer.getPayload().toString());
}

Example 15 with Data

use of org.minidns.record.Data in project minidns by MiniDNS.

the class DNSMessageTest method testComNsLookup.

@Test
public void testComNsLookup() throws Exception {
    DNSMessage m = getMessageFromResource("com-ns");
    assertFalse(m.authoritativeAnswer);
    assertFalse(m.authenticData);
    assertTrue(m.recursionDesired);
    assertTrue(m.recursionAvailable);
    assertTrue(m.qr);
    List<Record<? extends Data>> answers = m.answerSection;
    assertEquals(13, answers.size());
    for (Record<? extends Data> answer : answers) {
        assertCsEquals("com", answer.name);
        assertEquals(Record.CLASS.IN, answer.clazz);
        assertEquals(TYPE.NS, answer.type);
        assertEquals(112028, answer.ttl);
        assertTrue(((NS) answer.payloadData).target.ace.endsWith(".gtld-servers.net"));
    }
    List<Record<? extends Data>> arr = m.additionalSection;
    assertEquals(1, arr.size());
    EDNS edns = EDNS.fromRecord(arr.get(0));
    assertEquals(4096, edns.udpPayloadSize);
    assertEquals(0, edns.version);
}