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// SPDX-License-Identifier: BSD-3-Clause
// -*- Java -*-
//
// Copyright (c) 2005, Matthew J. Rutherford <rutherfo@cs.colorado.edu>
// Copyright (c) 2005, University of Colorado at Boulder
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// * Neither the name of the University of Colorado at Boulder nor the
// names of its contributors may be used to endorse or promote
// products derived from this software without specific prior written
// permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
package org.xbill.DNS;
import static org.junit.jupiter.api.Assertions.assertArrayEquals;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertThrows;
import java.io.IOException;
import java.net.InetAddress;
import java.net.UnknownHostException;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
class A6RecordTest {
private Name m_an;
private Name m_an2;
private Name m_rn;
private InetAddress m_addr;
private String m_addr_string;
private String m_addr_string_canonical;
private byte[] m_addr_bytes;
private int m_prefix_bits;
private long m_ttl;
@BeforeEach
void setUp() throws TextParseException, UnknownHostException {
m_an = Name.fromString("My.Absolute.Name.");
m_an2 = Name.fromString("My.Second.Absolute.Name.");
m_rn = Name.fromString("My.Relative.Name");
m_addr_string = "2001:0db8:85a3:08d3:1319:8a2e:0370:7334";
m_addr_string_canonical = "2001:db8:85a3:8d3:1319:8a2e:370:7334";
m_addr = InetAddress.getByName(m_addr_string);
m_addr_bytes = m_addr.getAddress();
m_ttl = 0x13579;
m_prefix_bits = 9;
}
@Test
void ctor_0arg() {
A6Record ar = new A6Record();
assertNull(ar.getName());
assertEquals(0, ar.getType());
assertEquals(0, ar.getDClass());
assertEquals(0, ar.getTTL());
}
@Test
void ctor_6arg() throws UnknownHostException {
A6Record ar = new A6Record(m_an, DClass.IN, m_ttl, m_prefix_bits, m_addr, null);
assertEquals(m_an, ar.getName());
assertEquals(Type.A6, ar.getType());
assertEquals(DClass.IN, ar.getDClass());
assertEquals(m_ttl, ar.getTTL());
assertEquals(m_prefix_bits, ar.getPrefixBits());
assertEquals(m_addr, ar.getSuffix());
assertNull(ar.getPrefix());
// with the prefix name
ar = new A6Record(m_an, DClass.IN, m_ttl, m_prefix_bits, m_addr, m_an2);
assertEquals(m_an, ar.getName());
assertEquals(Type.A6, ar.getType());
assertEquals(DClass.IN, ar.getDClass());
assertEquals(m_ttl, ar.getTTL());
assertEquals(m_prefix_bits, ar.getPrefixBits());
assertEquals(m_addr, ar.getSuffix());
assertEquals(m_an2, ar.getPrefix());
// a relative name
assertThrows(
RelativeNameException.class,
() -> new A6Record(m_rn, DClass.IN, m_ttl, m_prefix_bits, m_addr, null));
// a relative prefix name
assertThrows(
RelativeNameException.class,
() -> new A6Record(m_an, DClass.IN, m_ttl, m_prefix_bits, m_addr, m_rn));
// invalid prefix bits
assertThrows(
RelativeNameException.class,
() -> new A6Record(m_rn, DClass.IN, m_ttl, 0x100, m_addr, null));
// an IPv4 address
InetAddress address = InetAddress.getByName("192.168.0.1");
assertThrows(
IllegalArgumentException.class,
() -> new A6Record(m_an, DClass.IN, m_ttl, m_prefix_bits, address, null));
}
@Test
void rrFromWire() throws IOException {
// record with no prefix
DNSOutput dout = new DNSOutput();
dout.writeU8(0);
dout.writeByteArray(m_addr_bytes);
DNSInput din = new DNSInput(dout.toByteArray());
A6Record ar = new A6Record();
ar.rrFromWire(din);
assertEquals(0, ar.getPrefixBits());
assertEquals(m_addr, ar.getSuffix());
assertNull(ar.getPrefix());
// record with 9 bit prefix (should result in 15 bytes of the address)
dout = new DNSOutput();
dout.writeU8(9);
dout.writeByteArray(m_addr_bytes, 1, 15);
dout.writeByteArray(m_an2.toWire());
din = new DNSInput(dout.toByteArray());
ar = new A6Record();
ar.rrFromWire(din);
assertEquals(9, ar.getPrefixBits());
byte[] addr_bytes = m_addr_bytes.clone();
addr_bytes[0] = 0;
InetAddress exp = InetAddress.getByAddress(addr_bytes);
assertEquals(exp, ar.getSuffix());
assertEquals(m_an2, ar.getPrefix());
}
@Test
void rdataFromString() throws IOException {
// record with no prefix
Tokenizer t = new Tokenizer("0 " + m_addr_string);
A6Record ar = new A6Record();
ar.rdataFromString(t, null);
assertEquals(0, ar.getPrefixBits());
assertEquals(m_addr, ar.getSuffix());
assertNull(ar.getPrefix());
// record with 9 bit prefix. In contrast to the rrFromWire method,
// rdataFromString expects the entire 128 bits to be represented
// in the string
t = new Tokenizer("9 " + m_addr_string + " " + m_an2);
ar = new A6Record();
ar.rdataFromString(t, null);
assertEquals(9, ar.getPrefixBits());
assertEquals(m_addr, ar.getSuffix());
assertEquals(m_an2, ar.getPrefix());
// record with invalid prefixBits
assertThrows(
TextParseException.class, () -> new A6Record().rdataFromString(new Tokenizer("129"), null));
// record with invalid ipv6 address
assertThrows(
TextParseException.class,
() ->
new A6Record().rdataFromString(new Tokenizer("0 " + m_addr_string.substring(4)), null));
}
@Test
void rrToString() {
A6Record ar = new A6Record(m_an, DClass.IN, m_ttl, m_prefix_bits, m_addr, m_an2);
String exp = "" + m_prefix_bits + " " + m_addr_string_canonical + " " + m_an2;
String out = ar.rrToString();
assertEquals(exp, out);
}
@Test
void rrToWire() {
// canonical form
A6Record ar = new A6Record(m_an, DClass.IN, m_ttl, m_prefix_bits, m_addr, m_an2);
DNSOutput dout = new DNSOutput();
dout.writeU8(m_prefix_bits);
dout.writeByteArray(m_addr_bytes, 1, 15);
dout.writeByteArray(m_an2.toWireCanonical());
byte[] exp = dout.toByteArray();
dout = new DNSOutput();
ar.rrToWire(dout, null, true);
assertArrayEquals(exp, dout.toByteArray());
// case sensitiveform
dout = new DNSOutput();
dout.writeU8(m_prefix_bits);
dout.writeByteArray(m_addr_bytes, 1, 15);
dout.writeByteArray(m_an2.toWire());
exp = dout.toByteArray();
dout = new DNSOutput();
ar.rrToWire(dout, null, false);
assertArrayEquals(exp, dout.toByteArray());
}
}