Re: [wakaama-dev] LWM2M 1.1 next steps

[Scott Bertin <sbertin@xxxxxxxxxxx>]

David,

 

1. Yes, LWM2M_SUPPORT_TLV. Also always defined when LWM2M_BOOTSTRAP_SERVER_MODE is defined. Only off by default for LWM2M 1.1 clients. I actually have this ready to go, it took only about an hour. It might have merge conflicts with the SenML JSON support so I was waiting to create the pull request.
2. Actually I think it is mostly client side. The resource instance ID need to be passed to the object read or write function. I think there are TODOs in the code most places that need to change. On the server side I think it would “just work”, but obviously I haven’t tested it yet.
3. Adding the preferred content format to the Bootstrap-Request. Adding the Bootstrap-Read. There are changes to the BootStrap-Discover, but I need to review the details. The server initiated bootstrap is completely different for LWM2M 1.1. Server object resources 9 (Bootstrap-Request Trigger) and 12 (Last Bootstrapped) would probably be part of this, although Last Bootstrapped may not be possible unless the origin for lwm2m_gettime() is Jan 1 1970. I’ll probably break this up into several pull requests to keep it from being too much at once.

 

Regards,

Scott

 

From: wakaama-dev-bounces@xxxxxxxxxxx <wakaama-dev-bounces@xxxxxxxxxxx> On Behalf Of David Navarro - IoTerop
Sent: Wednesday, February 20, 2019 12:29 PM
To: Wakaama developer discussions <wakaama-dev@xxxxxxxxxxx>
Subject: Re: [wakaama-dev] LWM2M 1.1 next steps

 

Hi Scott,

 

1. Remember that TLV is still mandatory to support for the Server. I guess you consider a compilation flag. Like for  LWM2M_SUPPORT_JSON, it should be always defined when LWM2M_SERVER_MODE is defined.

 

2. I guess you are talking of the Server-side APIs. For the Client-side it should “just work” with the new URIs and the data encoding.

 

3. Could you elaborate ? From the top of my mind, there are the Bootstrap-Read operation, the new Bootstrap-Discover parameters, and some new resources in the Server Object.

 

Regards,

David Navarro

 

From: wakaama-dev-bounces@xxxxxxxxxxx <wakaama-dev-bounces@xxxxxxxxxxx> On Behalf Of Scott Bertin
Sent: Wednesday, 20 February, 2019 14:54
To: Wakaama developer discussions <wakaama-dev@xxxxxxxxxxx>
Subject: [wakaama-dev] LWM2M 1.1 next steps

 

The next few things I plan on working on are:

1. Making TLV support optional.
2. Expanding read/write/observe to handle resource instances.
3. Bootstrap changes.

 

Regards,

Scott

 

Scott Bertin
Senior Firmware Engineer

D: 678.264.2042 | F: 678.264.2082 | sbertin@xxxxxxxxxxx 


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