/// <summary>
/// Returns Association View.
/// </summary>
private byte[] GetObjects()
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Array);
bool lnExists = ObjectList.FindByLN(ObjectType.AssociationLogicalName, this.LogicalName) != null;
//Add count
int cnt = ObjectList.Count();
if (!lnExists)
{
++cnt;
}
GXCommon.SetObjectCount(cnt, data);
foreach (GXDLMSObject it in ObjectList)
{
data.SetUInt8((byte)DataType.Structure);
data.SetUInt8((byte)4); //Count
GXCommon.SetData(data, DataType.UInt16, it.ObjectType); //ClassID
GXCommon.SetData(data, DataType.UInt8, it.Version); //Version
GXCommon.SetData(data, DataType.OctetString, it.LogicalName); //LN
GetAccessRights(it, data); //Access rights.
}
if (!lnExists)
{
data.SetUInt8((byte)DataType.Structure);
data.SetUInt8((byte)4); //Count
GXCommon.SetData(data, DataType.UInt16, this.ObjectType); //ClassID
GXCommon.SetData(data, DataType.UInt8, this.Version); //Version
GXCommon.SetData(data, DataType.OctetString, this.LogicalName); //LN
GetAccessRights(this, data); //Access rights.
}
return(data.Array());
}
/// <summary>
/// Returns Association View.
/// </summary>
private byte[] GetObjects()
{
List <byte> stream = new List <byte>();
stream.Add((byte)DataType.Array);
bool lnExists = ObjectList.FindByLN(ObjectType.AssociationLogicalName, this.LogicalName) != null;
//Add count
int cnt = ObjectList.Count();
if (!lnExists)
{
++cnt;
}
GXCommon.SetObjectCount(cnt, stream);
foreach (GXDLMSObject it in ObjectList)
{
stream.Add((byte)DataType.Structure);
stream.Add((byte)4); //Count
GXCommon.SetData(stream, DataType.UInt16, it.ObjectType); //ClassID
GXCommon.SetData(stream, DataType.UInt8, it.Version); //Version
GXCommon.SetData(stream, DataType.OctetString, it.LogicalName); //LN
GetAccessRights(it, stream); //Access rights.
}
if (!lnExists)
{
stream.Add((byte)DataType.Structure);
stream.Add((byte)4); //Count
GXCommon.SetData(stream, DataType.UInt16, this.ObjectType); //ClassID
GXCommon.SetData(stream, DataType.UInt8, this.Version); //Version
GXCommon.SetData(stream, DataType.OctetString, this.LogicalName); //LN
GetAccessRights(this, stream); //Access rights.
}
return(stream.ToArray());
}
byte[] IGXDLMSBase.Invoke(GXDLMSSettings settings, ValueEventArgs e)
{
//Check reply_to_HLS_authentication
if (e.Index == 1)
{
UInt32 ic = 0;
byte[] secret;
if (settings.Authentication == Authentication.HighGMAC)
{
secret = settings.SourceSystemTitle;
GXByteBuffer bb = new GXByteBuffer(e.Parameters as byte[]);
bb.GetUInt8();
ic = bb.GetUInt32();
}
else
{
secret = Secret;
}
byte[] serverChallenge = GXSecure.Secure(settings, settings.Cipher, ic, settings.StoCChallenge, secret);
byte[] clientChallenge = (byte[])e.Parameters;
if (serverChallenge != null && clientChallenge != null && GXCommon.Compare(serverChallenge, clientChallenge))
{
if (settings.Authentication == Authentication.HighGMAC)
{
secret = settings.Cipher.SystemTitle;
ic = settings.Cipher.InvocationCounter;
}
else
{
secret = Secret;
}
AssociationStatus = AssociationStatus.Associated;
return(GXSecure.Secure(settings, settings.Cipher, ic, settings.CtoSChallenge, secret));
}
else //If the password does not match.
{
AssociationStatus = AssociationStatus.NonAssociated;
return(null);
}
}
else if (e.Index == 2)
{
byte[] tmp = e.Parameters as byte[];
if (tmp == null || tmp.Length == 0)
{
e.Error = ErrorCode.ReadWriteDenied;
}
else
{
Secret = tmp;
}
}
else if (e.Index == 3)
{
//Add COSEM object.
GXDLMSObject obj = GetObject(settings, e.Parameters as object[]);
//Unknown objects are not add.
if (obj is IGXDLMSBase)
{
if (ObjectList.FindByLN(obj.ObjectType, obj.LogicalName) == null)
{
ObjectList.Add(obj);
}
if (settings.Objects.FindByLN(obj.ObjectType, obj.LogicalName) == null)
{
settings.Objects.Add(obj);
}
}
}
else if (e.Index == 4)
{
//Remove COSEM object.
GXDLMSObject obj = GetObject(settings, e.Parameters as object[]);
//Unknown objects are not removed.
if (obj is IGXDLMSBase)
{
GXDLMSObject t = ObjectList.FindByLN(obj.ObjectType, obj.LogicalName);
if (t != null)
{
ObjectList.Remove(t);
}
//Item is not removed from all objects. It might be that use wants remove object only from association view.
}
}
else if (e.Index == 5)
{
object[] tmp = e.Parameters as object[];
if (tmp == null || tmp.Length != 2)
{
e.Error = ErrorCode.ReadWriteDenied;
}
else
{
UserList.Add(new KeyValuePair <byte, string>(Convert.ToByte(tmp[0]), Convert.ToString(tmp[1])));
}
}
else if (e.Index == 6)
{
object[] tmp = e.Parameters as object[];
if (tmp == null || tmp.Length != 2)
{
e.Error = ErrorCode.ReadWriteDenied;
}
else
{
UserList.Remove(new KeyValuePair <byte, string>(Convert.ToByte(tmp[0]), Convert.ToString(tmp[1])));
}
}
else
{
e.Error = ErrorCode.ReadWriteDenied;
}
return(null);
}
