/// <inheritdoc />
public override void Write(WireWriter writer)
{
writer.WriteUInt16(Id);
var flags =
(Convert.ToInt32(QR) << 15) |
(((ushort)Opcode & 0xf) << 11) |
((Z & 0x7F) << 4) |
((ushort)Status & 0xf);
writer.WriteUInt16((ushort)flags);
writer.WriteUInt16((ushort)1);
writer.WriteUInt16((ushort)Prerequisites.Count);
writer.WriteUInt16((ushort)Updates.Count);
writer.WriteUInt16((ushort)AdditionalResources.Count);
Zone.Write(writer);
foreach (var r in Prerequisites)
{
r.Write(writer);
}
foreach (var r in Updates)
{
r.Write(writer);
}
foreach (var r in AdditionalResources)
{
r.Write(writer);
}
}
/// <inheritdoc />
public override void WriteData(WireWriter writer)
{
writer.WriteUInt16(KeyTag);
writer.WriteByte((byte)Algorithm);
writer.WriteByte((byte)HashAlgorithm);
writer.WriteBytes(Digest);
}
/// <inheritdoc />
public override void WriteData(WireWriter writer)
{
foreach (var algorithm in Algorithms)
{
writer.WriteByte((byte)algorithm);
}
}
/// <inheritdoc />
public override void WriteData(WireWriter writer)
{
writer.WriteUInt16((ushort)Flags);
writer.WriteByte(Protocol);
writer.WriteByte((byte)Algorithm);
writer.WriteBytes(PublicKey);
}
/// <inheritdoc />
public override void WriteData(WireWriter writer)
{
writer.WriteByte((byte)HashAlgorithm);
writer.WriteByte(Flags);
writer.WriteUInt16(Iterations);
writer.WriteByteLengthPrefixedBytes(Salt);
}
/// <inheritdoc />
public override void WriteData(WireWriter writer)
{
if (Timeout.HasValue)
{
writer.WriteUInt16((ushort)(Timeout.Value.TotalMilliseconds / 100));
}
}
/// <inheritdoc />
public override void WriteData(WireWriter writer)
{
foreach (var s in Strings)
{
writer.WriteString(s);
}
}
/// <summary>
/// Length in bytes of the object when serialised.
/// </summary>
/// <returns>
/// Numbers of bytes when serialised.
/// </returns>
public int Length()
{
var writer = new WireWriter(Stream.Null);
Write(writer);
return(writer.Position);
}
/// <summary>
/// The resource specific data.
/// </summary>
/// <returns>
/// A byte array, never <b>null</b>.
/// </returns>
/// <remarks>
/// This is referred to as the <c>RDATA</c> in the DNS spec.
/// </remarks>
public byte[] GetData()
{
using (var ms = new MemoryStream())
{
var writer = new WireWriter(ms);
this.WriteData(writer);
return(ms.ToArray());
}
}
/// <summary>
/// The length of the resource specific data.
/// </summary>
/// <returns>
/// Number of bytes to represent the resource specific data.
/// </returns>
/// <remarks>
/// This is referred to as the <c>RDLENGTH</c> in the DNS spec.
/// </remarks>
public int GetDataLength()
{
using (var ms = new MemoryStream())
{
var writer = new WireWriter(ms);
this.WriteData(writer);
return((int)ms.Length);
}
}
/// <inheritdoc />
public override void WriteData(WireWriter writer)
{
writer.WriteByte((byte)HashAlgorithm);
writer.WriteByte((byte)Flags);
writer.WriteUInt16(Iterations);
writer.WriteByteLengthPrefixedBytes(Salt);
writer.WriteByteLengthPrefixedBytes(NextHashedOwnerName);
writer.WriteBitmap(Types.Select(t => (ushort)t));
}
/// <inheritdoc />
public override void WriteData(WireWriter writer)
{
writer.WriteDomainName(PrimaryName);
writer.WriteDomainName(Mailbox);
writer.WriteUInt32(SerialNumber);
writer.WriteTimeSpan32(Refresh);
writer.WriteTimeSpan32(Retry);
writer.WriteTimeSpan32(Expire);
writer.WriteTimeSpan32(Minimum);
}
/// <inheritdoc />
public override void WriteData(WireWriter writer)
{
writer.WriteDomainName(Algorithm);
writer.WriteDateTime32(Inception);
writer.WriteDateTime32(Expiration);
writer.WriteUInt16((ushort)Mode);
writer.WriteUInt16((ushort)Error);
writer.WriteUint16LengthPrefixedBytes(Key);
writer.WriteUint16LengthPrefixedBytes(OtherData);
}
/// <inheritdoc />
public override void WriteData(WireWriter writer)
{
writer.WriteDomainName(Algorithm);
writer.WriteDateTime48(TimeSigned);
writer.WriteTimeSpan16(Fudge);
writer.WriteUint16LengthPrefixedBytes(MAC);
writer.WriteUInt16(OriginalMessageId);
writer.WriteUInt16((ushort)Error);
writer.WriteUint16LengthPrefixedBytes(OtherData);
}
/// <inheritdoc />
public override void WriteData(WireWriter writer)
{
foreach (var option in Options)
{
writer.WriteUInt16((ushort)option.Type);
writer.PushLengthPrefixedScope();
option.WriteData(writer);
writer.PopLengthPrefixedScope();
}
}
/// <inheritdoc />
public override void Write(WireWriter writer)
{
writer.WriteDomainName(Name);
writer.WriteUInt16((ushort)Type);
writer.WriteUInt16((ushort)Class);
writer.WriteTimeSpan32(TTL);
writer.PushLengthPrefixedScope();
WriteData(writer);
writer.PopLengthPrefixedScope();
}
/// <inheritdoc />
public override void WriteData(WireWriter writer)
{
writer.WriteUInt16((ushort)TypeCovered);
writer.WriteByte((byte)Algorithm);
writer.WriteByte(Labels);
writer.WriteTimeSpan32(OriginalTTL);
writer.WriteDateTime32(SignatureExpiration);
writer.WriteDateTime32(SignatureInception);
writer.WriteUInt16(KeyTag);
writer.WriteDomainName(SignerName, uncompressed: true);
writer.WriteBytes(Signature);
}
/// <inheritdoc />
public override void Write(WireWriter writer)
{
writer.WriteDomainName(Name);
writer.WriteUInt16((ushort)Type);
var classValue = (ushort)Class;
if (QU)
{
classValue = (ushort)(classValue | 0x01 << 15);
}
writer.WriteUInt16((ushort)classValue);
}
/// <inheritdoc />
public override void Write(WireWriter writer)
{
writer.WriteUInt16(Id);
var flags =
(Convert.ToInt32(QR) << 15) |
(((ushort)opcode4 & 0xf) << 11) |
(Convert.ToInt32(AA) << 10) |
(Convert.ToInt32(TC) << 9) |
(Convert.ToInt32(RD) << 8) |
(Convert.ToInt32(RA) << 7) |
((Z & 0x1) << 6) |
(Convert.ToInt32(AD) << 5) |
(Convert.ToInt32(CD) << 4) |
((ushort)Status & 0xf);
writer.WriteUInt16((ushort)flags);
writer.WriteUInt16((ushort)Questions.Count);
writer.WriteUInt16((ushort)Answers.Count);
writer.WriteUInt16((ushort)AuthorityRecords.Count);
writer.WriteUInt16((ushort)AdditionalRecords.Count);
foreach (var r in Questions)
{
r.Write(writer);
}
foreach (var r in Answers)
{
r.Write(writer);
}
foreach (var r in AuthorityRecords)
{
r.Write(writer);
}
foreach (var r in AdditionalRecords)
{
r.Write(writer);
}
}
/// <summary>
/// Creates a new instance of the <see cref="DSRecord"/> class
/// from the specified <see cref="DNSKEYRecord"/>.
/// </summary>
/// <param name="key">
/// The dns key to use.
/// </param>
/// <param name="force">
/// If <b>true</b>, key usage checks are ignored.
/// </param>
/// <exception cref="ArgumentException">
/// Both <see cref="DNSKEYFlags.ZoneKey"/> and <see cref="DNSKEYFlags.SecureEntryPoint"/>
/// must be set.
/// </exception>
/// <exception cref="ArgumentOutOfRangeException">
/// The <see cref="ResourceRecord.Name"/> of the <paramref name="key"/> is missing.
/// </exception>
public DSRecord(DNSKEYRecord key, bool force = false)
: this()
{
// Check the key.
if (!force)
{
if ((key.Flags & DNSKEYFlags.ZoneKey) == DNSKEYFlags.None)
{
throw new ArgumentException("ZoneKey must be set.", "key");
}
if ((key.Flags & DNSKEYFlags.SecureEntryPoint) == DNSKEYFlags.None)
{
throw new ArgumentException("SecureEntryPoint must be set.", "key");
}
}
byte[] digest;
using (var ms = new MemoryStream())
using (var hasher = DigestRegistry.Create(key.Algorithm))
{
var writer = new WireWriter(ms)
{
CanonicalForm = true
};
writer.WriteDomainName(key.Name);
key.WriteData(writer);
ms.Position = 0;
digest = hasher.ComputeHash(ms);
}
Algorithm = key.Algorithm;
Class = key.Class;
KeyTag = key.KeyTag();
Name = key.Name;
TTL = key.TTL;
Digest = digest;
HashAlgorithm = DigestType.Sha1;
}
/// <inheritdoc /> public abstract void Write(WireWriter writer);
/// <inheritdoc />
public override void WriteData(WireWriter writer)
{
writer.WriteIPAddress(Address);
}
/// <inheritdoc />
public override void WriteData(WireWriter writer)
{
writer.WriteBytes(Data);
}
/// <inheritdoc />
public override void WriteData(WireWriter writer)
{
writer.WriteDomainName(NextOwnerName, uncompressed: true);
writer.WriteBitmap(Types.Select(t => (ushort)t));
}
/// <summary>
/// Write the data that is specific to the resource record <see cref="System.Type"/>.
/// </summary>
/// <param name="writer">
/// The destination for the DNS object's data.
/// </param>
/// <remarks>
/// Derived classes must implement this method.
/// </remarks>
public virtual void WriteData(WireWriter writer)
{
}
