public static void EncodeHeaders(ref byte[] buffer, ref int pos, PDU pdu)
{
EncodeShort(ref buffer, ref pos, pdu.DeviceId);
EncodeByte(ref buffer, ref pos, pdu.Seq);
EncodeByte(ref buffer, ref pos, pdu.CH);
EncodeByte(ref buffer, ref pos, pdu.CL);
}
public LoginAcepted(byte[] buffer, int pos)
{
PDU this_pdu = this;
Decoder.DecodeHeaders(buffer, ref this_pdu, ref pos);
idAsignado = Decoder.DecodeShort(buffer, ref pos);
}
public static void DecodeHeaders(byte[] buffer, ref PDU pdu, ref int pos)
{
pdu.Incomming = true;
pdu.DeviceId = DecodeShort(buffer, ref pos);
pdu.Seq = DecodeByte(buffer, ref pos);
pdu.CH = DecodeByte(buffer, ref pos);
pdu.CL = DecodeByte(buffer, ref pos);
}
public LoginRequest(byte[] buffer, int pos)
{
PDU this_pdu = this;
Decoder.DecodeHeaders(buffer, ref this_pdu, ref pos);
iMEI = Decoder.DecodeString(buffer, ref pos);
password = Decoder.DecodeString(buffer, ref pos);
firmware = Decoder.DecodeString(buffer, ref pos);
tableVersion = Decoder.DecodeShort(buffer, ref pos);
}
public static PDU Decode(byte[] buffer, ref DecodeErrors outcode)
{
/*int chkpos = buffer.GetLength(0) - 2;
* short chk = DecodeShort(buffer, ref chkpos);
* if (Checksum8(buffer, buffer.GetLength(0) - 2) != chk)
* { // CRC ERROR
* crc_errors++;
* outcode = DecodeErrors.ChecksumError; // crcerror
* return null;
* }*/
int pos = 0;
short pdusize = DecodeShort(buffer, ref pos);
if (pdusize != buffer.GetLength(0) - 2)
{
badlength_error++;
outcode = DecodeErrors.BadLength;
return(null);
}
byte options = DecodeByte(buffer, ref pos);
if (options > 0x01)
{
badoptions_error++;
outcode = DecodeErrors.BadOptions;
return(null);
}
PDU headers = new PDU();
DecodeHeaders(buffer, ref headers, ref pos);
pos = 3;
switch ((ComandoH)headers.CH)
{
case ComandoH.LoginRequest:
return(new LoginRequest(buffer, pos));
case ComandoH.LoginAcepted:
return(new LoginAcepted(buffer, pos));
case ComandoH.LoginReject:
return(new LoginReject(buffer, pos));
case ComandoH.MsgPosicion:
return(new Posicion(buffer, pos));
case ComandoH.MsgEvento:
return(DecodeEventos(headers, buffer, pos));
default:
return(headers);
}
}
public Posicion(byte[] buffer, int pos)
{
PDU this_pdu = this;
Decoder.DecodeHeaders(buffer, ref this_pdu, ref pos);
byte items = Decoder.DecodeByte(buffer, ref pos);
puntos.Clear();
while (items-- > 0)
{
puntos.Add(DecodeGPSPoint(buffer, ref pos));
}
}
public static void Encode(ref byte[] buffer, ref int size, PDU pdu)
{
int start = 0;
int payload = 3; // salteo
EncodeHeaders(ref buffer, ref payload, pdu);
pdu.FinalEncode(ref buffer, ref payload);
short pdu_size = Convert.ToInt16(payload & 0xFFFF);
// PDU Size.
EncodeShort(ref buffer, ref start, pdu_size);
// Options = 0x00
EncodeByte(ref buffer, ref start, pdu.Options);
short sum = Checksum8(buffer, pdu_size);
EncodeShort(ref buffer, ref payload, sum);
size = pdu_size + 2; // del sum
}
internal static PDU DecodeEventos(PDU headers, byte[] buffer, int pos)
{
return(null);
}
public LoginReject(byte[] buffer, int pos)
{
PDU this_pdu = this;
Decoder.DecodeHeaders(buffer, ref this_pdu, ref pos);
}