public static SessionPacket GetSessionPacket(byte[] buffer, int offset)
{
SessionPacketTypeName type = (SessionPacketTypeName)ByteReader.ReadByte(buffer, offset);
switch (type)
{
case SessionPacketTypeName.SessionMessage:
return(new SessionMessagePacket(buffer, offset));
case SessionPacketTypeName.SessionRequest:
return(new SessionRequestPacket(buffer, offset));
case SessionPacketTypeName.PositiveSessionResponse:
return(new PositiveSessionResponsePacket(buffer, offset));
case SessionPacketTypeName.NegativeSessionResponse:
return(new NegativeSessionResponsePacket(buffer, offset));
case SessionPacketTypeName.RetargetSessionResponse:
return(new SessionRetargetResponsePacket(buffer, offset));
case SessionPacketTypeName.SessionKeepAlive:
return(new SessionKeepAlivePacket(buffer, offset));
default:
throw new InvalidDataException("Invalid NetBIOS session packet type: 0x" + ((byte)type).ToString("X2"));
}
}
public static SessionPacket GetSessionPacket(byte[] buffer)
{
SessionPacketTypeName type = (SessionPacketTypeName)ByteReader.ReadByte(buffer, 0);
switch (type)
{
case SessionPacketTypeName.SessionMessage:
return(new SessionMessagePacket(buffer));
case SessionPacketTypeName.SessionRequest:
return(new SessionRequestPacket(buffer));
case SessionPacketTypeName.PositiveSessionResponse:
return(new PositiveSessionResponsePacket(buffer));
case SessionPacketTypeName.NegativeSessionResponse:
return(new NegativeSessionResponsePacket(buffer));
case SessionPacketTypeName.RetargetSessionResponse:
return(new SessionRetargetResponsePacket(buffer));
case SessionPacketTypeName.SessionKeepAlive:
return(new SessionKeepAlivePacket(buffer));
default:
throw new InvalidRequestException("Invalid NetBIOS Session Packet");
}
}
public SessionPacket(byte[] buffer, int offset)
{
Type = (SessionPacketTypeName)ByteReader.ReadByte(buffer, offset + 0);
Flags = ByteReader.ReadByte(buffer, offset + 1);
TrailerLength = (Flags & 0x01) << 16 | BigEndianConverter.ToUInt16(buffer, offset + 2);
Trailer = ByteReader.ReadBytes(buffer, offset + 4, TrailerLength);
}
public SessionPacket(byte[] buffer)
{
Type = (SessionPacketTypeName)ByteReader.ReadByte(buffer, 0);
Flags = ByteReader.ReadByte(buffer, 1);
Length = (Flags & 0x01) << 16 | BigEndianConverter.ToUInt16(buffer, 2);
this.Trailer = ByteReader.ReadBytes(buffer, 4, Length);
}
public static SessionPacket GetSessionPacket(byte[] buffer, int offset)
{
SessionPacketTypeName type = (SessionPacketTypeName)ByteReader.ReadByte(buffer, offset);
return(type switch
{
SessionPacketTypeName.SessionMessage => new SessionMessagePacket(buffer, offset),
SessionPacketTypeName.SessionRequest => new SessionRequestPacket(buffer, offset),
SessionPacketTypeName.PositiveSessionResponse => new PositiveSessionResponsePacket(buffer, offset),
SessionPacketTypeName.NegativeSessionResponse => new NegativeSessionResponsePacket(buffer, offset),
SessionPacketTypeName.RetargetSessionResponse => new SessionRetargetResponsePacket(buffer, offset),
SessionPacketTypeName.SessionKeepAlive => new SessionKeepAlivePacket(buffer, offset),
_ => throw new InvalidDataException("Invalid NetBIOS session packet type: 0x" +
((byte)type).ToString("X2"))
});
