| 
Hi Sorin,   Sorry for the delay. There were a lot of vacations these last two weeks in Europe.   Regards, David Navarro   
From: wakaama-dev-bounces@xxxxxxxxxxx [mailto:wakaama-dev-bounces@xxxxxxxxxxx]
On Behalf Of Sorin ZamfirSent: Thursday, 7 January, 2016 11:11
 To: wakaama-dev@xxxxxxxxxxx
 Subject: Re: [wakaama-dev] LWM2M Discover request not handled by client
   
I haven't received any feedback about this ... and I'm beginning to think this mail was never received or was never approved   
  
While testing some custom object scenarios i've observed that triggering a Discovery request from a LWM2M server to the wakaama client on a specific object
 or even client endpoint doesn't reply with actual object links as it supposed to as by the LWM2M standard section 5.3.2. 
Instead the request is treated as normal object read and as far as i can see from the management.c there is no handling for such a request. (as stated
 by LWM2M standard section 8.2.4 in the table operation to method mapping) 
To be more specific i somehow expected the client to handle such a discovery request as follows : 
GET Accept : application/link-format URI    <----- request 
2.05 Content-Format : application/link-format ; Payload : </objectId> , </objectId/instance0/0> , </objectId/instance1/0>  <----  response 
I find this scenario to be quite critical when instances can be dynamically managed by the client (created or deleted). Without this , even though registration
 updates are performed periodically the cached resource URIs on the lwm2m backend are never brought up to date unless the client is restarted.
   ---------------------------------------------------------------------Intel Corporation SAS (French simplified joint stock company)
 Registered headquarters: "Les Montalets"- 2, rue de Paris,
 92196 Meudon Cedex, France
 Registration Number:  302 456 199 R.C.S. NANTERRE
 Capital: 4,572,000 Euros
 This e-mail and any attachments may contain confidential material forthe sole use of the intended recipient(s). Any review or distribution
 by others is strictly prohibited. If you are not the intended
 recipient, please contact the sender and delete all copies.
 |