public override byte[] Encode()
{
int targetNameOffset = 40;
int targetInfoOffset = 48;
byte[] targetName = null;
int size = 40;
if (TargetName != null)
{
var encoding = (Flags & NtlmFlags.NegotiateUnicode) != 0 ? Encoding.Unicode : Encoding.UTF8;
targetName = encoding.GetBytes(TargetName);
targetInfoOffset += targetName.Length;
size += targetName.Length;
}
if (TargetInfo != null || targetInfo != null)
{
if (targetInfo == null)
{
targetInfo = TargetInfo.Encode((Flags & NtlmFlags.NegotiateUnicode) != 0);
}
size += targetInfo.Length + 8;
targetNameOffset += 8;
}
var data = PrepareMessage(size);
// message length
short length = (short)data.Length;
data[16] = (byte)length;
data[17] = (byte)(length >> 8);
// flags
data[20] = (byte)Flags;
data[21] = (byte)((uint)Flags >> 8);
data[22] = (byte)((uint)Flags >> 16);
data[23] = (byte)((uint)Flags >> 24);
Buffer.BlockCopy(nonce, 0, data, 24, nonce.Length);
if (targetName != null)
{
data[12] = (byte)targetName.Length;
data[13] = (byte)(targetName.Length >> 8);
data[14] = (byte)targetName.Length;
data[15] = (byte)(targetName.Length >> 8);
data[16] = (byte)targetNameOffset;
data[17] = (byte)(targetNameOffset >> 8);
Buffer.BlockCopy(targetName, 0, data, targetNameOffset, targetName.Length);
}
if (targetInfo != null)
{
data[40] = (byte)targetInfo.Length;
data[41] = (byte)(targetInfo.Length >> 8);
data[42] = (byte)targetInfo.Length;
data[43] = (byte)(targetInfo.Length >> 8);
data[44] = (byte)targetInfoOffset;
data[45] = (byte)(targetInfoOffset >> 8);
Buffer.BlockCopy(targetInfo, 0, data, targetInfoOffset, targetInfo.Length);
}
return(data);
}
public void TestNtlmTargetInfoEncode ()
{
var now = DateTime.Now.Ticks;
var targetInfo = new TargetInfo {
DomainName = "DOMAIN",
ServerName = "SERVER",
DnsDomainName = "domain.com",
DnsServerName = "server.domain.com",
Timestamp = now,
};
var encoded = targetInfo.Encode (true);
var decoded = new TargetInfo (encoded, 0, encoded.Length, true);
Assert.AreEqual (targetInfo.DnsDomainName, decoded.DnsDomainName, "DnsDomainName does not match.");
Assert.AreEqual (targetInfo.DnsServerName, decoded.DnsServerName, "DnsServerName does not match.");
Assert.AreEqual (targetInfo.DomainName, decoded.DomainName, "DomainName does not match.");
Assert.AreEqual (targetInfo.ServerName, decoded.ServerName, "ServerName does not match.");
Assert.AreEqual (targetInfo.Timestamp, decoded.Timestamp, "Timestamp does not match.");
}
public override byte[] Encode()
{
int targetNameOffset = 40;
int targetInfoOffset = 48;
byte[] targetName = null;
bool negotiateVersion;
int size = 40;
if (negotiateVersion = (Flags & NtlmFlags.NegotiateVersion) != 0)
{
targetNameOffset += 16;
targetInfoOffset += 16;
size += 16;
}
if (TargetName != null)
{
var encoding = (Flags & NtlmFlags.NegotiateUnicode) != 0 ? Encoding.Unicode : Encoding.UTF8;
targetName = encoding.GetBytes(TargetName);
targetInfoOffset += targetName.Length;
size += targetName.Length;
}
if (TargetInfo != null || targetInfo != null)
{
if (targetInfo == null)
{
targetInfo = TargetInfo.Encode((Flags & NtlmFlags.NegotiateUnicode) != 0);
}
size += targetInfo.Length + 8;
targetNameOffset += 8;
}
var message = PrepareMessage(size);
// message length
message[16] = (byte)size;
message[17] = (byte)(size >> 8);
// flags
message[20] = (byte)Flags;
message[21] = (byte)((uint)Flags >> 8);
message[22] = (byte)((uint)Flags >> 16);
message[23] = (byte)((uint)Flags >> 24);
Buffer.BlockCopy(nonce, 0, message, 24, nonce.Length);
if (targetName != null)
{
message[12] = (byte)targetName.Length;
message[13] = (byte)(targetName.Length >> 8);
message[14] = (byte)targetName.Length;
message[15] = (byte)(targetName.Length >> 8);
message[16] = (byte)targetNameOffset;
message[17] = (byte)(targetNameOffset >> 8);
Buffer.BlockCopy(targetName, 0, message, targetNameOffset, targetName.Length);
}
if (targetInfo != null)
{
message[40] = (byte)targetInfo.Length;
message[41] = (byte)(targetInfo.Length >> 8);
message[42] = (byte)targetInfo.Length;
message[43] = (byte)(targetInfo.Length >> 8);
message[44] = (byte)targetInfoOffset;
message[45] = (byte)(targetInfoOffset >> 8);
Buffer.BlockCopy(targetInfo, 0, message, targetInfoOffset, targetInfo.Length);
}
if (negotiateVersion)
{
message[48] = (byte)OSVersion.Major;
message[49] = (byte)OSVersion.Minor;
message[50] = (byte)OSVersion.Build;
message[51] = (byte)(OSVersion.Build >> 8);
message[52] = 0x00;
message[53] = 0x00;
message[54] = 0x00;
message[55] = 0x0f;
}
return(message);
}
