/// <summary>
/// Constructs a Managed Protocol Data Unit from a List of Byte
/// </summary>
/// <param name="Pdu">The List of Byte to Construct a Protocol Data Unit from</param>
public ProtocolDataUnit(List <byte> SnmpPacket)
{
int Pos = 0;
int End = BasicEncodingRules.DecodeLength(ref SnmpPacket, ref Pos, SnmpType.Sequence);
Version = BasicEncodingRules.DecodeInteger32(ref SnmpPacket, ref Pos);
CommunityName = BasicEncodingRules.DecodeOctetString(BasicEncodingRules.DecodeOctetString(ref SnmpPacket, ref Pos));
PduType = (SnmpType)SnmpPacket[Pos];
BasicEncodingRules.DecodeLength(ref SnmpPacket, ref Pos, PduType);
RequestId = (int)BasicEncodingRules.DecodeInteger32(ref SnmpPacket, ref Pos);
ErrorStatus = (ErrorStatus)BasicEncodingRules.DecodeInteger32(ref SnmpPacket, ref Pos);
ErrorIndex = (int)BasicEncodingRules.DecodeInteger32(ref SnmpPacket, ref Pos);
//Gets PDU Length
int pduLeng = BasicEncodingRules.DecodeLength(ref SnmpPacket, ref Pos, SnmpType.Sequence);
if (Pos >= End)
{
return;
}
Bindings = new List <Variable>();
while (Pos < End)
{
try
{
BasicEncodingRules.DecodeLength(ref SnmpPacket, ref Pos, SnmpType.Sequence);
Bindings.Add(BasicEncodingRules.DecodeSequence(ref SnmpPacket, ref Pos));
}
catch
{
throw;
}
}
}
/// <summary>
/// Creates a Varaible from a List of bytes
/// </summary>
/// <param name="bytes">The List of bytes</param>
/// <returns>A Variable constructs from the given bytes</returns>
public static Variable FromBytes(List <byte> bytes)
{
int position = 0;
Variable result = new Variable();
if (bytes[position].ToSnmpType() == SnmpType.ObjectIdentifier)
{
result.Identifier = BasicEncodingRules.DecodeObjectId(ref bytes, ref position);
}
result.TypeCode = bytes[position].ToSnmpType();
int Length = BasicEncodingRules.DecodeLength(ref bytes, ref position, result.TypeCode);
result.Value = bytes.GetRange(position, Length);
return(result);
}
