internal static void send_request(byte[] client_random, byte[] rsa_data, byte[] username, byte[] host)
{
int num = 0x80;
int num2 = (username.Length == 0) ? 0 : (username.Length + 1);
int num3 = (host.Length == 0) ? 0 : (host.Length + 1);
int num4 = (0x80 + num2) + num3;
RdpPacket packet = new RdpPacket();
packet.WriteLittleEndian32(num);
packet.WriteByte(0x13);
packet.WriteByte(2);
packet.WriteLittleEndian16((short)num4);
packet.WriteLittleEndian32(1);
packet.WriteLittleEndianU32(0xff010000);
packet.Write(client_random, 0, 0x20);
packet.WriteLittleEndian16((short)0);
packet.WriteLittleEndian16((short)(RDPClient.modulus_size + 8));
packet.Write(rsa_data, 0, RDPClient.modulus_size);
packet.Position += 8L;
packet.WriteLittleEndian16((short)15);
packet.WriteLittleEndian16((short)num2);
if (num2 != 0)
{
packet.Write(username, 0, num2 - 1);
packet.WriteByte(0);
}
packet.WriteLittleEndian16((short)0x10);
packet.WriteLittleEndian16((short)num3);
if (num3 != 0)
{
packet.Write(host, 0, num3 - 1);
packet.WriteByte(0);
}
IsoLayer.SendMCS(packet, MCS.MSC_GLOBAL_CHANNEL);
}
private static void send_AttachUserRequest()
{
RdpPacket data = new RdpPacket();
data.WriteByte((byte)(AURQ << 2));
IsoLayer.SendTPKT(data);
}
private static void sendSynchronize()
{
RdpPacket packet = new RdpPacket();
packet.WriteLittleEndian16((short)1);
packet.WriteLittleEndian16((short)0x3ea);
IsoLayer.sendDataPDU(packet, IsoLayer.PDUType2.PDUTYPE2_SYNCHRONIZE, Secure.RDPEncrypted() ? MCS.SEC_ENCRYPT : 0);
}
private static void sendControl(int action)
{
RdpPacket packet = new RdpPacket();
packet.WriteLittleEndian16((short)action);
packet.WriteLittleEndian16((short)0);
packet.WriteLittleEndian32(0);
IsoLayer.sendDataPDU(packet, IsoLayer.PDUType2.PDUTYPE2_CONTROL, Secure.RDPEncrypted() ? MCS.SEC_ENCRYPT : 0);
}
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);
}
private static void send_ChannelJoinRequest(int channelid)
{
RdpPacket data = new RdpPacket();
data.WriteByte((byte)(CJRQ << 2));
data.WriteBigEndian16((short)RDPClient.McsUserID);
data.WriteBigEndian16((short)channelid);
IsoLayer.SendTPKT(data);
}
private static void sendFontList()
{
RdpPacket packet = new RdpPacket();
packet.WriteLittleEndian16((short)0);
packet.WriteLittleEndian16((short)0);
packet.WriteLittleEndian16((short)3);
packet.WriteLittleEndian16((short)50);
IsoLayer.sendDataPDU(packet, IsoLayer.PDUType2.PDUTYPE2_FONTLIST, Secure.RDPEncrypted() ? MCS.SEC_ENCRYPT : 0);
}
private static void sendPersistKeyList()
{
int num = 0;
int num2 = 0;
int num3 = 0;
int num4 = 0;
int num5 = 0;
int num6 = 0;
int num7 = 0;
int num8 = 0;
int num9 = 0;
int num10 = 0;
int offset = 0;
while ((((num6 < num) || (num7 < num2)) || ((num8 < num3) || (num9 < num4))) || (num10 < num5))
{
int num12 = 0;
int num13 = 0;
int num14 = 0;
int num15 = 0;
int num16 = 0;
bool bMoreKeys = false;
RdpPacket packet = new RdpPacket();
packet.WriteLittleEndian16((ushort)num12);
packet.WriteLittleEndian16((ushort)num13);
packet.WriteLittleEndian16((ushort)num14);
packet.WriteLittleEndian16((ushort)num15);
packet.WriteLittleEndian16((ushort)num16);
packet.WriteLittleEndian16((ushort)num);
packet.WriteLittleEndian16((ushort)num2);
packet.WriteLittleEndian16((ushort)num3);
packet.WriteLittleEndian16((ushort)num4);
packet.WriteLittleEndian16((ushort)num5);
byte num17 = 0;
if (offset == 0)
{
num17 = (byte)(num17 | 1);
}
if (!bMoreKeys)
{
num17 = (byte)(num17 | 2);
}
packet.WriteByte(num17);
packet.WriteByte(0);
packet.WriteLittleEndian16((short)0);
IsoLayer.sendDataPDU(packet, IsoLayer.PDUType2.PDUTYPE2_BITMAPCACHE_PERSISTENT_LIST, Secure.RDPEncrypted() ? MCS.SEC_ENCRYPT : 0);
num6 += num12;
num7 += num13;
num8 += num14;
num9 += num15;
num10 += num16;
}
}
public static void Disconnect()
{
RdpPacket packet = new RdpPacket();
packet.WriteLittleEndian16((short)1);
packet.WriteLittleEndian16((short)0x3ea);
IsoLayer.sendDataPDU(packet, IsoLayer.PDUType2.PDUTYPE2_SHUTDOWN_REQUEST, Secure.RDPEncrypted() ? SEC_ENCRYPT : 0);
packet = new RdpPacket();
packet.WriteByte((byte)(DPUM << 2));
packet.WriteByte(3);
IsoLayer.SendTPKT(packet);
}
internal static void send_authresp(byte[] token, byte[] crypt_hwid, byte[] signature)
{
int num = 0x80;
int num2 = 0x3a;
RdpPacket packet = new RdpPacket();
packet.WriteLittleEndian32(num);
packet.WriteByte(0x15);
packet.WriteByte(2);
packet.WriteLittleEndian16((short)num2);
packet.WriteLittleEndian16((short)1);
packet.WriteLittleEndian16((short)10);
packet.Write(token, 0, 10);
packet.WriteLittleEndian16((short)1);
packet.WriteLittleEndian16((short)20);
packet.Write(crypt_hwid, 0, 20);
packet.Write(signature, 0, 0x10);
IsoLayer.SendMCS(packet, MCS.MSC_GLOBAL_CHANNEL);
}
private static void sendConnectNegotiation(int NegotiationFlags, byte[] loadBalanceToken)
{
string domainAndUsername = RDPClient.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);
}
packet.WriteByte(1);
packet.WriteByte(0);
packet.WriteLittleEndian16((short)8);
packet.WriteLittleEndian32(NegotiationFlags);
long num2 = packet.Position;
packet.Position = position;
packet.WriteBigEndian16((short)num2);
packet.WriteByte((byte)(num2 - 5L));
IsoLayer.Write(packet);
}
internal static void processDemandActive(RdpPacket data)
{
int num3;
RDPClient.rdp_shareid = data.getLittleEndian32();
int num = data.getLittleEndian16();
data.getLittleEndian16();
data.Position += num;
int numCaps = data.getLittleEndian16();
data.getLittleEndian16();
processServerCapabilities(data, numCaps);
sendConfirmActive();
sendSynchronize();
sendControl(4);
sendControl(1);
ISO.Secure_Receive(out num3);
ISO.Secure_Receive(out num3);
ISO.Secure_Receive(out num3);
if (!RDPClient.m_bInitialised)
{
sendPersistKeyList();
}
List <Rdp.InputInfo> inputToSend = new List <Rdp.InputInfo>
{
new Rdp.InputInfo(0, Rdp.InputType.INPUT_EVENT_SYNC, 0, 0, 0)
};
IsoLayer.SendInput(inputToSend);
sendFontList();
ISO.Secure_Receive(out num3);
if (RDPClient.m_bInitialised)
{
RDPClient.OnInitialise();
}
RDPClient.m_bInitialised = true;
resetOrderState();
}
private static void sendConfirmActive()
{
int num = 390;
int num2 = 0;
if (Secure.RDPEncrypted())
{
num2 |= MCS.SEC_ENCRYPT;
}
RdpPacket data = new RdpPacket();
data.WriteLittleEndian16((short)((0x10 + num) + RDP_SOURCE.Length));
data.WriteLittleEndian16((short)0x13);
data.WriteLittleEndian16((short)(RDPClient.McsUserID + 0x3e9));
data.WriteLittleEndian32(RDPClient.rdp_shareid);
data.WriteLittleEndian16((short)0x3ea);
data.WriteLittleEndian16((short)RDP_SOURCE.Length);
data.WriteLittleEndian16((short)num);
data.Write(RDP_SOURCE, 0, RDP_SOURCE.Length);
data.WriteLittleEndian16((short)13);
data.Position += 2L;
sendGeneralCaps(data);
sendBitmapCaps(data);
sendOrderCaps(data);
sendBitmapcacheCaps(data);
sendColorcacheCaps(data);
sendActivateCaps(data);
sendControlCaps(data);
sendPointerCaps(data);
sendShareCaps(data);
sendInputCaps(data);
sendSoundCaps(data);
sendFontCaps(data);
sendGlyphCacheCaps(data);
IsoLayer.SendMCS_GlobalChannel(data, num2);
}
internal static void send_connection_request(byte[] loadBalanceToken, bool bAutoReconnect)
{
int num;
RDPClient.dec_count = 0;
RDPClient.enc_count = 0;
Network.ConnectionStage = RDPClient.eConnectionStage.Negotiating;
if (RDPClient.enableNLA)
{
sendConnectNegotiation(3, loadBalanceToken);
num = receiveConnectNegotiation();
if (num == 0x10000000)
{
Network.Close();
Network.Connect(RDPClient.Host, RDPClient.Port);
sendConnectNegotiation(0, loadBalanceToken);
num = receiveConnectNegotiation();
if (num != 0)
{
throw new RDFatalException("Security negotiation failed!");
}
}
else
{
if (((num & 1) != 0) || ((num & 2) != 0))
{
Network.ConnectionStage = RDPClient.eConnectionStage.Securing;
Network.ConnectSSL();
}
if ((num & 2) != 0)
{
Network.ConnectionStage = RDPClient.eConnectionStage.Authenticating;
CredSSP.Negotiate(Network.GetSSLPublicKey());
}
}
}
else
{
sendConnectNegotiation(0, loadBalanceToken);
num = receiveConnectNegotiation();
if (num != 0)
{
throw new RDFatalException("Security negotiation failed!");
}
}
Network.ConnectionStage = RDPClient.eConnectionStage.Establishing;
IsoLayer.SendTPKT(sendConnectInitial(sendMcsData(true, Channels.RegisteredChannels.Count, num)));
receiveConnectResponse();
send_ErectDomainRequest();
send_AttachUserRequest();
RDPClient.McsUserID = receive_AttachUserConfirm();
send_ChannelJoinRequest(RDPClient.McsUserID + MCS_USERCHANNEL_BASE);
receive_ChannelJoinConfirm();
send_ChannelJoinRequest(MSC_GLOBAL_CHANNEL);
receive_ChannelJoinConfirm();
foreach (IVirtualChannel channel in Channels.RegisteredChannels)
{
send_ChannelJoinRequest(channel.ChannelID);
receive_ChannelJoinConfirm();
}
int num2 = 0x40;
if (Secure.RDPEncrypted())
{
Network.ConnectionStage = RDPClient.eConnectionStage.SecureAndLogin;
RdpPacket packet = Secure.establishKey();
packet.Position = 0L;
IsoLayer.SendMCS(packet, MSC_GLOBAL_CHANNEL);
num2 |= SEC_ENCRYPT;
}
else
{
Network.ConnectionStage = RDPClient.eConnectionStage.Login;
}
IsoLayer.SendMCS_GlobalChannel(getLoginInfo(RDPClient.Domain, RDPClient.Username, RDPClient.Password, "", "", bAutoReconnect), num2);
}