/// <summary>
/// Client MCS Erect Domain Request PDU
/// </summary>
private static void send_ErectDomainRequest()
{
RdpPacket data = new RdpPacket();
data.WriteByte((byte)(EDRQ << 2));
data.WriteBigEndian16((short)1);
data.WriteBigEndian16((short)1);
IsoLayer.SendTPKT(data);
}
/// <summary>
/// Client MCS Channel Join Request PDU
/// </summary>
private static void send_ChannelJoinRequest(int channelId)
{
RdpPacket data = new RdpPacket();
data.WriteByte((byte)(CJRQ << 2));
data.WriteBigEndian16((short)McsUserID);
data.WriteBigEndian16((short)channelId);
IsoLayer.SendTPKT(data);
}
internal static void SendMCS(RdpPacket packet, int channel)
{
int length = (int)(packet.Length | 0x8000);
RdpPacket data = new RdpPacket();
data.WriteByte((byte)(MCS.SDRQ << 2));
data.WriteBigEndian16((short)MCS.McsUserID);
data.WriteBigEndian16((short)channel);
data.WriteByte(0x70);
data.WriteBigEndian16((short)length);
data.copyToByteArray(packet);
SendTPKT(data);
}
/// <summary>
/// Client X.224 Connection Request PDU
/// </summary>
private static void sendConnectNegotiation(NegotiationProtocol NegotiationFlags, byte[] loadBalanceToken)
{
string domainAndUsername = Options.DomainAndUsername;
if (domainAndUsername.Length > 9)
{
domainAndUsername = domainAndUsername.Substring(0, 9);
}
RdpPacket packet = new RdpPacket();
packet.WriteByte(3);
packet.WriteByte(0);
long position = packet.Position;
packet.WriteBigEndian16((short)0);
packet.WriteByte(0);
packet.WriteByte(0xe0);
packet.WriteBigEndian16((short)0);
packet.WriteBigEndian16((short)0);
packet.WriteByte(0);
if (loadBalanceToken != null)
{
packet.Write(loadBalanceToken, 0, loadBalanceToken.Length);
packet.WriteString("\r\n", false);
}
else
{
packet.WriteString("Cookie: mstshash=" + domainAndUsername + "\r\n", true);
}
// RDP Negotiation Request
packet.WriteByte(0x01);
packet.WriteByte(0);
packet.WriteLittleEndian16((short)8);
packet.WriteLittleEndian32((int)NegotiationFlags); // Standard RDP Security, TLS 1.0, CredSSP
long num2 = packet.Position;
packet.Position = position;
packet.WriteBigEndian16((short)num2);
packet.WriteByte((byte)(num2 - 5L));
IsoLayer.Write(packet);
}
public static void SendMessage(int type)
{
short num = 0x12;
byte[] buffer = new byte[11];
RdpPacket packet = new RdpPacket();
packet.WriteByte(3);
packet.WriteByte(0);
packet.WriteBigEndian16(num);
packet.WriteByte(6);
packet.WriteByte((byte)type);
packet.WriteByte(0x80);
packet.WriteBigEndian16((short)0);
packet.WriteBigEndian16((short)0);
packet.WriteByte(0);
packet.Write(buffer, 0, buffer.Length);
Write(packet);
}
internal static void sendBerHeader(RdpPacket data, BER_Header berHeader, int param)
{
int num = (int)berHeader;
if (num > 0xff)
{
data.WriteBigEndian16((short)num);
}
else
{
data.WriteByte((byte)num);
}
if (param >= 0x80)
{
data.WriteByte(130);
data.WriteBigEndian16((short)param);
}
else
{
data.WriteByte((byte)param);
}
}
public static void SendTPKT(RdpPacket data)
{
short num = (short)(data.Length + 7L);
data.Position = 0L;
RdpPacket packet = new RdpPacket();
packet.WriteByte(3);
packet.WriteByte(0);
packet.WriteBigEndian16(num);
packet.WriteByte(2);
packet.WriteByte((byte)Main.SecureValue8);
packet.WriteByte(0x80);
packet.copyToByteArray(data);
Write(packet);
}
internal static void sendBerInteger(RdpPacket buffer, int value)
{
int num = 1;
if (value > 0xff)
{
num = 2;
}
sendBerHeader(buffer, BER_Header.BER_TAG_INTEGER, num);
if (value > 0xff)
{
buffer.WriteBigEndian16((short)value);
}
else
{
buffer.WriteByte((byte)value);
}
}
/// <summary>
/// Client MCS Connect Initial PDU
/// Part 2
///
/// Create packet
/// </summary>
internal static RdpPacket sendMcsData(bool useRdp5, int num_channels, int serverSelectedProtocol)
{
RdpPacket packet = new RdpPacket();
// Проверка длины Client Name
string clientName = Options.ClientName;
if (clientName.Length > 15)
{
clientName = clientName.Substring(0, 15);
}
int num = 2 * clientName.Length;
int num2 = 0x9e;
if (useRdp5)
{
num2 += 0x60;
}
if (useRdp5 && (num_channels > 0))
{
num2 += (num_channels * 12) + 8;
}
if (Options.serverNegotiateFlags.HasFlag(NegotiationFlags.EXTENDED_CLIENT_DATA_SUPPORTED))
{
num2 += 8;
}
packet.WriteBigEndian16((short)5);
packet.WriteBigEndian16((short)20);
packet.WriteByte(0x7c);
packet.WriteBigEndian16((short)1);
packet.WriteBigEndian16((short)(num2 | 0x8000));
packet.WriteBigEndian16((short)8);
packet.WriteBigEndian16((short)0x10);
packet.WriteByte(0);
packet.WriteLittleEndian16((ushort)0xc001);
packet.WriteByte(0);
packet.WriteLittleEndian32(0x61637544);
packet.WriteBigEndian16((short)((num2 - 14) | 0x8000));
// Client Core Data (TS_UD_CS_CORE)
packet.WriteLittleEndian16((ushort)CLIENT.CS_CORE);
packet.WriteLittleEndian16(useRdp5 ? ((short)0xd8) : ((short)0x88));
packet.WriteLittleEndian16(useRdp5 ? ((short)4) : ((short)1));
packet.WriteLittleEndian16((short)8);
packet.WriteLittleEndian16((short)Options.width); // Width
packet.WriteLittleEndian16((short)Options.height); // Height
packet.WriteLittleEndian16((ushort)0xca01);
packet.WriteLittleEndian16((ushort)0xaa03);
packet.WriteLittleEndian32(Options.Keyboard); // Клавиатура
packet.WriteLittleEndian32(useRdp5 ? 0xa28 : 0x1a3); // Client Build
packet.WriteUnicodeString(clientName); // Client Name
packet.Position += 30 - num;
packet.WriteLittleEndian32(0x00000004); // IBM enhanced (101- or 102-key) keyboard
packet.WriteLittleEndian32(0);
packet.WriteLittleEndian32(12); // Функциональные клавиши (F1-F12)
packet.Position += 0x40L;
packet.WriteLittleEndian16((ushort)0xCA01); // NS_UD_COLOR_8BPP
packet.WriteLittleEndian16(useRdp5 ? ((short)1) : ((short)0));
if (useRdp5)
{
packet.WriteLittleEndian32(0);
packet.WriteLittleEndian16((short)((byte)Options.server_bpp));
packet.WriteLittleEndian16((short)7);
packet.WriteLittleEndian16((short)1);
packet.Position += 0x40L;
packet.WriteByte(0);
packet.WriteByte(0);
packet.WriteLittleEndian32(serverSelectedProtocol);
// Client Cluster Data (TS_UD_CS_CLUSTER)
packet.WriteLittleEndian16((ushort)CLIENT.CS_CLUSTER);
packet.WriteLittleEndian16((short)12);
int num3 = 13;
if (Options.flags.HasFlag(HostFlags.ConsoleSession) || (Options.sessionID != 0))
{
num3 |= 2;
}
packet.WriteLittleEndian32(num3);
packet.WriteLittleEndian32(Options.sessionID);
}
// Client Security Data (TS_UD_CS_SEC)
packet.WriteLittleEndian16((ushort)CLIENT.CS_SECURITY);
packet.WriteLittleEndian16(useRdp5 ? ((short)12) : ((short)8));
int num4 = 0;
if (serverSelectedProtocol == 0)
{
num4 |= 3;
}
packet.WriteLittleEndian32(num4);
if (useRdp5)
{
packet.WriteLittleEndian32(0);
}
// Client Network Data (TS_UD_CS_NET)
if (useRdp5 && (num_channels > 0))
{
packet.WriteLittleEndian16((ushort)CLIENT.CS_NET);
packet.WriteLittleEndian16((short)((num_channels * 12) + 8));
packet.WriteLittleEndian32(num_channels);
foreach (IVirtualChannel channel in Channels.RegisteredChannels)
{
Debug.WriteLine("Client Network Data. Channel name length: " + channel.ChannelName.Length);
packet.WriteString(channel.ChannelName, false);
packet.WriteBigEndian32((uint)(CHANNEL_DEF.CHANNEL_OPTION_INITIALIZED));
}
}
// Client Message Channel Data (TS_UD_CS_MCS_MSGCHANNEL)
if (Options.serverNegotiateFlags.HasFlag(NegotiationFlags.EXTENDED_CLIENT_DATA_SUPPORTED))
{
packet.WriteLittleEndian16((ushort)CLIENT.CS_MCS_MSGCHANNEL);
packet.WriteLittleEndian16((short)8);
packet.WriteLittleEndian32(0);
}
return(packet);
}