/// <summary>
/// Check authentication.
/// </summary>
protected override SourceDiagnostic ValidateAuthentication(Authentication authentication, byte[] password)
{
if (this.UseLogicalNameReferencing)
{
GXDLMSAssociationLogicalName target = null;
foreach (GXDLMSAssociationLogicalName it in Items.GetObjects(ObjectType.AssociationLogicalName))
{
if (it.AuthenticationMechanismName.MechanismId == authentication)
{
target = it;
break;
}
}
if (target != null)
{
if (authentication != Authentication.Low)
{
//Other authentication levels are check later.
return(SourceDiagnostic.None);
}
if (GXCommon.EqualBytes(target.Secret, password))
{
return(SourceDiagnostic.None);
}
}
}
return(SourceDiagnostic.AuthenticationFailure);
}
/// <summary>
/// This method is used to update meter firmware.
/// </summary>
/// <param name="target"></param>
public void ImageUpdate(GXDLMSImageTransfer target, byte[] identification, byte[] data)
{
//Check that image transfer ia enabled.
GXReplyData reply = new GXReplyData();
ReadDataBlock(Client.Read(target, 5), reply);
Client.UpdateValue(target, 5, reply.Value);
if (!target.ImageTransferEnabled)
{
throw new Exception("Image transfer is not enabled");
}
//Step 1: Read image block size.
ReadDataBlock(Client.Read(target, 2), reply);
Client.UpdateValue(target, 2, reply.Value);
// Step 2: Initiate the Image transfer process.
ReadDataBlock(target.ImageTransferInitiate(Client, identification, data.Length), reply);
// Step 3: Transfers ImageBlocks.
int imageBlockCount;
ReadDataBlock(target.ImageBlockTransfer(Client, data, out imageBlockCount), reply);
//Step 4: Check the completeness of the Image.
ReadDataBlock(Client.Read(target, 3), reply);
Client.UpdateValue(target, 3, reply.Value);
// Step 5: The Image is verified;
ReadDataBlock(target.ImageVerify(Client), reply);
// Step 6: Before activation, the Image is checked;
//Get list to images to activate.
ReadDataBlock(Client.Read(target, 7), reply);
Client.UpdateValue(target, 7, reply.Value);
bool bFound = false;
foreach (GXDLMSImageActivateInfo it in target.ImageActivateInfo)
{
if (GXCommon.EqualBytes(it.Identification, identification))
{
bFound = true;
break;
}
}
//Read image transfer status.
ReadDataBlock(Client.Read(target, 6), reply);
Client.UpdateValue(target, 6, reply.Value);
if (target.ImageTransferStatus != Gurux.DLMS.Objects.Enums.ImageTransferStatus.VerificationSuccessful)
{
throw new Exception("Image transfer status is " + target.ImageTransferStatus.ToString());
}
if (!bFound)
{
throw new Exception("Image not found.");
}
//Step 7: Activate image.
ReadDataBlock(target.ImageActivate(Client), reply);
}