Re: Registering protocol details

[Paul Offord <Paul.Offord () advance7 com>]

Thanks Pascal,

I think you are right.  I’ll rethink my code.

Best regards…Paul

From: wireshark-dev-bounces () wireshark org [mailto:wireshark-dev-bounces () wireshark org] On Behalf Of Pascal Quantin
Sent: 07 August 2016 20:52
To: Developer support list for Wireshark <wireshark-dev () wireshark org>
Subject: Re: [Wireshark-dev] Registering protocol details

Hi Paul,

2016-08-07 18:42 GMT+02:00 Paul Offord <Paul.Offord () advance7 com<mailto:Paul.Offord () advance7 com>>:
Hi Anders,

Ah – I understand.  I had asked Gerald about that at SF16 and he mentioned the ability to use other pcap-ng block 
types.  I’d like to do that in the future, but I don’t want to tackle it yet.  This wouldn’t overcome the problem I 
have anyway.

So going back to the original question, can I call function calls like proto_register_add_subtree and 
proto_register_add_item from with the dissect_foo function or do I have to make them from proto_register_foo?

As far as I know you need to register fields before dissection starts. It can be done dynamically based on some file 
selected in preferences, but I don't think it can be done on the fly during dissection.
That said when looking at the proto_register_field_array() code, I do not see any assertion related to this, but I 
would not be surprised if things like filtering do not work as expected if you add new fields as dissection goes. And 
as far as I can tell, no dissector is doing something as you suggest yet.
I will let another developer correct my assumptions if I'm wrong.
Regards,
Pascal.

______________________________________________________________________

This message contains confidential information and is intended only for the individual named. If you are not the named 
addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if 
you have received this e-mail by mistake and delete this e-mail from your system.

Any views or opinions expressed are solely those of the author and do not necessarily represent those of Advance Seven 
Ltd. E-mail transmission cannot be guaranteed to be secure or error-free as information could be intercepted, 
corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept 
liability for any errors or omissions in the contents of this message, which arise as a result of e-mail transmission.

Advance Seven Ltd. Registered in England & Wales numbered 2373877 at Endeavour House, Coopers End Lane, Stansted, Essex 
CM24 1SJ

______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
For more information please visit http://www.symanteccloud.com
______________________________________________________________________

___________________________________________________________________________
Sent via:    Wireshark-dev mailing list <wireshark-dev () wireshark org>
Archives:    https://www.wireshark.org/lists/wireshark-dev
Unsubscribe: https://wireshark.org/mailman/options/wireshark-dev
             mailto:wireshark-dev-request () wireshark org?subject=unsubscribe