/// <summary>
/// Send SYN and ACK packet.
/// </summary>
/// <param name="udpTransportMode">Transport mode: Reliable or Lossy</param>
/// <param name="invalidType">invalid type</param>
public void SendSynAndAckPacket(TransportMode udpTransportMode, SynAndAck_InvalidType invalidType, uint?initSequenceNumber = null, uUdpVer_Values?uUdpVer = null)
{
RdpeudpServerSocket rdpeudpSocket = rdpeudpSocketR;
if (udpTransportMode == TransportMode.Lossy)
{
rdpeudpSocket = rdpeudpSocketL;
}
if (invalidType == SynAndAck_InvalidType.None)
{
// If invalid type is None, send the packet directly.
rdpeudpSocket.SendSynAndAckPacket(initSequenceNumber, uUdpVer);
return;
}
// Create the SYN and ACK packet first.
RdpeudpPacket SynAndAckPacket = CreateInvalidSynAndACKPacket(udpTransportMode, invalidType, initSequenceNumber);
rdpeudpSocket.SendPacket(SynAndAckPacket);
}
/// <summary>
/// Create invalid SYN and ACK Packet
/// </summary>
/// <param name="udpTransportMode">Transport mode: reliable or lossy</param>
/// <param name="invalidType">Invalid type</param>
/// <param name="initSequenceNumber">init sequence</param>
/// <returns></returns>
private RdpeudpPacket CreateInvalidSynAndACKPacket(TransportMode udpTransportMode, SynAndAck_InvalidType invalidType, uint? initSequenceNumber = null)
{
RdpeudpServerSocket rdpeudpSocket = rdpeudpSocketR;
if (udpTransportMode == TransportMode.Lossy)
{
rdpeudpSocket = rdpeudpSocketL;
}
// Create the SYN and ACK packet.
RdpeudpPacket SynAndAckPacket = new RdpeudpPacket();
SynAndAckPacket.fecHeader.snSourceAck = rdpeudpSocket.SnSourceAck;
SynAndAckPacket.fecHeader.uReceiveWindowSize = rdpeudpSocket.UReceiveWindowSize;
SynAndAckPacket.fecHeader.uFlags = RDPUDP_FLAG.RDPUDP_FLAG_SYN | RDPUDP_FLAG.RDPUDP_FLAG_ACK;
RDPUDP_SYNDATA_PAYLOAD SynPayload = rdpeudpSocket.CreateSynData(initSequenceNumber);
switch (invalidType)
{
case SynAndAck_InvalidType.LargerUpStreamMtu:
SynPayload.uUpStreamMtu = 1232 + 1;
break;
case SynAndAck_InvalidType.SamllerUpStreamMtu:
SynPayload.uUpStreamMtu = 1132 - 1;
break;
case SynAndAck_InvalidType.LargerDownStreamMtu:
SynPayload.uDownStreamMtu = 1232 + 1;
break;
case SynAndAck_InvalidType.SamllerDownStreamMtu:
SynPayload.uDownStreamMtu = 1132 - 1;
break;
}
SynAndAckPacket.SynData = SynPayload;
return SynAndAckPacket;
}
/// <summary>
/// Create invalid SYN and ACK Packet
/// </summary>
/// <param name="udpTransportMode">Transport mode: reliable or lossy</param>
/// <param name="invalidType">Invalid type</param>
/// <param name="initSequenceNumber">init sequence</param>
/// <returns></returns>
private RdpeudpPacket CreateInvalidSynAndACKPacket(TransportMode udpTransportMode, SynAndAck_InvalidType invalidType, uint? initSequenceNumber = null)
{
RdpeudpServerSocket rdpeudpSocket = rdpeudpSocketR;
if (udpTransportMode == TransportMode.Lossy)
{
rdpeudpSocket = rdpeudpSocketL;
}
// Create the SYN and ACK packet.
RdpeudpPacket SynAndAckPacket = new RdpeudpPacket();
SynAndAckPacket.fecHeader.snSourceAck = rdpeudpSocket.SnSourceAck;
SynAndAckPacket.fecHeader.uReceiveWindowSize = rdpeudpSocket.UReceiveWindowSize;
SynAndAckPacket.fecHeader.uFlags = RDPUDP_FLAG.RDPUDP_FLAG_SYN | RDPUDP_FLAG.RDPUDP_FLAG_ACK;
RDPUDP_SYNDATA_PAYLOAD SynPayload = rdpeudpSocket.CreateSynData(initSequenceNumber);
switch (invalidType)
{
case SynAndAck_InvalidType.LargerUpStreamMtu:
SynPayload.uUpStreamMtu = 1232 + 1;
break;
case SynAndAck_InvalidType.SamllerUpStreamMtu:
SynPayload.uUpStreamMtu = 1132 - 1;
break;
case SynAndAck_InvalidType.LargerDownStreamMtu:
SynPayload.uDownStreamMtu = 1232 + 1;
break;
case SynAndAck_InvalidType.SamllerDownStreamMtu:
SynPayload.uDownStreamMtu = 1132 - 1;
break;
}
SynAndAckPacket.SynData = SynPayload;
return SynAndAckPacket;
}
/// <summary>
/// Send SYN and ACK packet.
/// </summary>
/// <param name="udpTransportMode">Transport mode: Reliable or Lossy</param>
/// <param name="invalidType">invalid type</param>
public void SendSynAndAckPacket(TransportMode udpTransportMode, SynAndAck_InvalidType invalidType, uint? initSequenceNumber = null)
{
RdpeudpServerSocket rdpeudpSocket = rdpeudpSocketR;
if (udpTransportMode == TransportMode.Lossy)
{
rdpeudpSocket = rdpeudpSocketL;
}
if (invalidType == SynAndAck_InvalidType.None)
{
// If invalid type is None, send the packet directly.
rdpeudpSocket.SendSynAndAckPacket(initSequenceNumber);
return;
}
// Create the SYN and ACK packet first.
RdpeudpPacket SynAndAckPacket = CreateInvalidSynAndACKPacket(udpTransportMode, invalidType, initSequenceNumber);
rdpeudpSocket.SendPacket(SynAndAckPacket);
}
