/// <summary>
/// Parse byte[] into TLVs
/// </summary>
public void ParseByteArrayIntoTlvs(byte[] bytes, int offset)
{
int position = 0;
TlvCollection.Clear();
while (position < bytes.Length)
{
// The payload type
var byteArraySegment = new ByteArraySegment(bytes, offset + position, TLVTypeLength.TypeLengthLength);
var typeLength = new TLVTypeLength(byteArraySegment);
// create a TLV based on the type and
// add it to the collection
TLV currentTlv = TLVFactory(bytes, offset + position, typeLength.Type);
if (currentTlv == null)
{
break;
}
TlvCollection.Add(currentTlv);
// stop at the first end tlv we run into
if (currentTlv is EndOfLLDPDU)
{
break;
}
// Increment the position to seek the next TLV
position += (currentTlv.TotalLength);
}
}
#pragma warning restore 0169, 0649
#endif
#endregion
#region Constructors
/// <summary>
/// Create an empty LLDPPacket
/// </summary>
public LLDPPacket()
{
Log.Debug("");
// all lldp packets end with an EndOfLLDPDU tlv so add one
// by default
TlvCollection.Add(new EndOfLLDPDU());
}
/// <summary>
/// Create an empty LldpPacket
/// </summary>
public LldpPacket()
{
Log.Debug("");
// all lldp packets end with an EndOfLldpdu TLV so add one
// by default
TlvCollection.Add(new EndOfLldpduTlv());
}
/// <summary>
/// Sets the given TLV(as a byte array)into the table. This will not take
/// care of big-endian/little-endian issues, although it will reverse the byte order
/// in the tag for you(necessary for encoding).
/// If the value is null, the parameter TLV will be removed instead.
/// </summary>
/// <param name="tag">The tag for this TLV.</param>
/// <param name="val">The value of this TLV.</param>
public void SetOptionalParamBytes(Tag tag, byte[] val)
{
if (val == null)
{
this.RemoveOptionalParameter(tag);
}
else
{
vTlv.Add(new Tlv.Tlv(tag, (ushort)val.Length, val));
}
}
/// <summary>
/// Parse byte[] into TLVs
/// </summary>
public void ParseByteArrayIntoTlvs(byte[] bytes, int offset)
{
log.DebugFormat("bytes.Length {0}, offset {1}", bytes.Length, offset);
int position = 0;
TlvCollection.Clear();
while (position < bytes.Length)
{
// The payload type
var byteArraySegment = new ByteArraySegment(bytes, offset + position, TLVTypeLength.TypeLengthLength);
var typeLength = new TLVTypeLength(byteArraySegment);
// create a TLV based on the type and
// add it to the collection
TLV currentTlv = TLVFactory(bytes, offset + position, typeLength.Type);
if (currentTlv == null)
{
log.Debug("currentTlv == null");
break;
}
log.DebugFormat("Adding tlv {0}, Type {1}",
currentTlv.GetType(), currentTlv.Type);
TlvCollection.Add(currentTlv);
// stop at the first end tlv we run into
if (currentTlv is EndOfLLDPDU)
{
break;
}
// Increment the position to seek the next TLV
position += (currentTlv.TotalLength);
}
log.DebugFormat("Done, position {0}", position);
}
